Mikuni Corporation

Japan

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Date
New (last 4 weeks) 1
2025 February 1
2025 January 8
2024 December 3
2024 November 8
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IPC Class
F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps 46
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member 29
F02D 9/02 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits 22
B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements 16
F02M 35/10 - Air intakesInduction systems 15
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NICE Class
07 - Machines and machine tools 8
09 - Scientific and electric apparatus and instruments 5
11 - Environmental control apparatus 3
12 - Land, air and water vehicles; parts of land vehicles 3
42 - Scientific, technological and industrial services, research and design 2
Status
Pending 43
Registered / In Force 296
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1.

ENGINE THROTTLE DEVICE

      
Application Number 18785485
Status Pending
Filing Date 2024-07-26
First Publication Date 2025-02-13
Owner MIKUNI CORPORATION (Japan)
Inventor Osanai, Atsushi

Abstract

An engine throttle device 1 includes: a throttle shaft 4 supporting a throttle valve 7 inside a throttle bore of a throttle body 2 such that the throttle valve 7 is able to be opened and closed; and a gear case 18 fixed to a side portion of the throttle body 2 and accommodating gear trains, causes one end of the throttle shaft 4 to project into the gear case 18 via shaft holes 20 and 21, and drives the throttle shaft 4 via the gear trains 22, 26, and 29. The throttle device 1 further includes: an annular fitting portion 42 formed to be adjacent to the shaft hole 21; a bearing 6 having an outer ring 6b fitted to the annular fitting portion 42 and an inner ring 6a fitted to the throttle shaft 4, and rotatably supporting the throttle shaft 4; a positioning ring 45 press-fitted into the annular fitting portion 42 and abutting the outer ring 6b to restrict displacement of the outer ring 6b along an axis C of the throttle shaft 4; and a fixing nut 39 screwed onto one end of the throttle shaft 4 inside the gear case 18 and abutting the inner ring 6a on one end side to restrict displacement.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps

2.

VALVE DEVICE

      
Application Number 18731369
Status Pending
Filing Date 2024-06-03
First Publication Date 2025-01-30
Owner MIKUNI CORPORATION (Japan)
Inventor Sekiguchi, Satoshi

Abstract

Provided is a valve device in which a valve body can come into close contact with a valve seat to reliably close the valve even if a shaft moves slightly off-axis or tilted. In a valve device including: a housing 10 defining an upstream passage 12a and downstream passages 13a and 14a through which a fluid passes, and valve seats 11d and 11e interposed between the upstream passage and the downstream passages; a shaft 60 reciprocating along a predetermined axis S; and valve bodies 20 and 30 fixed to the shaft and seated on and separated from the valve seats, the valve seats 11d and 11e are formed into annular tapered surfaces forming a part of conical surfaces centered on the axis, and the valve bodies 20 and 30 are formed to include convex curved surfaces 22a and 32a that come into contact with the annular tapered surfaces when seated.

IPC Classes  ?

  • F16K 11/048 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable valve members
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

3.

ELECTROMAGNETIC ACTUATOR AND VALVE DEVICE

      
Application Number 18677838
Status Pending
Filing Date 2024-05-29
First Publication Date 2025-01-30
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sekiguchi, Satoshi
  • Ishiguchi, Shoichi

Abstract

An electromagnetic actuator includes: a movable element 50, reciprocating along an axis S; a coil 122 for excitation; a shaft 60, fixed to the movable element; a first inner yoke 70, movably receiving the movable element; a second inner yoke 80, attracting the movable element through energization of the coil and movably receiving the shaft; and an outer yoke 90, 100, surrounding the coil and bonded to the first inner yoke and the second inner yoke. In a cross section including the axis, a first bonding region between the first inner yoke and the outer yoke and/or a second bonding region between the second inner yoke and the outer yoke have a bonding length Hd1+Hs1, Hd2+Hs2 greater than a plate thickness T of the outer yoke.

IPC Classes  ?

  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
  • F16K 11/048 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable valve members

4.

ELECTRONIC CIRCUIT APPARATUS AND CIRCUIT-INTEGRATED MOTOR

      
Application Number 18664527
Status Pending
Filing Date 2024-05-15
First Publication Date 2025-01-23
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Konno, Yuki
  • Yokota, Yuji
  • Fujisaki, Satoru

Abstract

An electronic circuit apparatus 1 includes: at least one semiconductor device 10; a substrate 20 installed with the semiconductor device 10 and having a through hole 24 at a position facing a back surface 17 of the semiconductor device 10; a heat sink 30 located on an opposite side of the substrate 20 from the semiconductor device 10 and having at least one protruding portion 32 protruding toward the back surface 17 of the semiconductor device 10 so as to penetrate into the through hole 24 of the substrate 20; and a heat-dissipating material 40 disposed at least between the back surface 17 of the semiconductor device 10 and a top surface 33 of the protruding portion 32 of the heat sink 30.

IPC Classes  ?

  • H01L 23/367 - Cooling facilitated by shape of device
  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • H01L 23/498 - Leads on insulating substrates

5.

INTAKE MANIFOLD

      
Application Number 18778411
Status Pending
Filing Date 2024-07-19
First Publication Date 2025-01-23
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Higaki, Toshinori
  • Hayashi, Takayuki

Abstract

In an intake manifold made of a resin and including: a surge tank 2 applied to an engine, an intake air flowing into the surge tank 2; and branch pipes 3a and 3b branched from the surge tank 2 and connected to intake ports of the engine, a pillar portion 20 penetrating through an internal space of the surge tank 2 and connecting an inner wall 12 and an outer wall 13 facing each other is included, and a cross section perpendicular to an extending direction of the pillar portion 20 has an oval shape elongated in an passing direction of the intake air inside the surge tank 2.

IPC Classes  ?

6.

MIXING VALVE

      
Application Number 18757702
Status Pending
Filing Date 2024-06-28
First Publication Date 2025-01-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kato, Hiroshi
  • Kashiwagura, Hideaki

Abstract

A mixing valve includes: a housing with a valve chamber formed therein; and a rotor rotatably inserted into the valve chamber, a first peripheral wall of the housing is provided with a first inlet port at a first opening to the valve chamber and a second inlet port at a second opening to the valve chamber, a second peripheral wall of the rotor is provided with a first inflow pipe, a second inflow pipe, and a mixing pipe with a mixing flow path formed therein, the mixing pipe opens in a radial direction of the rotor and communicates with the first inflow pipe and the second inflow pipe to allow a mixed fluid MF to flow into the mixing pipe, and the first peripheral wall of the housing is provided with a discharge port a discharge fluid DF that has flowed into the valve chamber without passing through the first inflow pipe and/or the second inflow pipe of the rotor, respectively, and an outlet port communicating with the mixing flow path.

IPC Classes  ?

  • F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug

7.

MIXING VALVE

      
Application Number 18760102
Status Pending
Filing Date 2024-07-01
First Publication Date 2025-01-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kato, Hiroshi
  • Kashiwagura, Hideaki
  • Ando, Satoshi
  • Kikuchi, Yuko

Abstract

A mixing valve 1 includes: a housing 2 with a valve chamber 6 formed therein; and a rotor 4 rotatably inserted into the valve chamber 6, the housing 2 includes, in a first peripheral wall 12, a first inlet port 14 opening at a first opening 20 to the valve chamber 6 and a second inlet port 16 opening at a second opening 22 to the valve chamber 6, a first fluid F1 flowing into the first inlet port 14, a second fluid F2 flowing into the second inlet port 16, the rotor 4 includes, in a second peripheral wall 28, a first inflow pipe 30 and a second inflow pipe 32, and a housing 2 includes, in the first peripheral wall 12, a discharge port 18 discharging the first fluid F1 and/or the second fluid F2 flowing into the valve chamber 6 without passing through the first inflow pipe 30 and/or the second inflow pipe 32 of the rotor 4, respectively, as a discharge fluid DF to the outside of the housing 2, and includes an outlet port 26 communicating with a mixing flow path 24.

IPC Classes  ?

  • F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug

8.

CONTROL DEVICE FOR MOTOR AND ELECTRIC PROPULSION DEVICE FOR SHIP

      
Application Number 18679554
Status Pending
Filing Date 2024-05-31
First Publication Date 2025-01-09
Owner
  • MIKUNI CORPORATION (Japan)
  • SUZUKI MOTOR CORPORATION (Japan)
Inventor
  • Miura, Osamu
  • Sato, Shisei
  • Eto, Yuta

Abstract

A control device 10 for a motor 1 includes: a processor 20 for generating a control command for power supplied to a coil 2 of the motor 1; an inverter circuit 30 for controlling, based on the control command of the processor 20, the power supplied to the coil 2 of the motor 1; and a switching circuit 60 disposed between the inverter circuit 30 and the coil 2 of the motor 1, and configured to switch between an energized state where the inverter circuit 30 and the coil 2 are energized and a non-energized state where the inverter circuit 30 is electrically disconnected from the coil 2. The processor 20 is configured to give the switching circuit 60 a first disconnection command to switch from the energized state to the non-energized state, when rotation of the motor 1 is detected in a state where the power is not supplied to the coil 2.

IPC Classes  ?

  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
  • H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage

9.

CIRCUIT-INTEGRATED MOTOR

      
Application Number 18656701
Status Pending
Filing Date 2024-05-07
First Publication Date 2025-01-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Tanaka, Naoki
  • Koga, Yoshitaka

Abstract

A circuit-integrated motor 100 (100A to 100D) includes: a motor 10; a control board 40 for controlling the motor 10; a casing 50 including a partition wall portion 60 made of metal and dividing a board housing chamber 51 for housing the control board 40 from a placement space for the motor 10; a terminal 70 for connecting the control board 40 to an external device; and a terminal holder 80 formed of resin and holding the terminal 70. The terminal holder 80 is molded integrally with the partition wall portion 60 by insert molding with the partition wall portion 60 and the terminal 70 being insert parts.

IPC Classes  ?

  • H02K 11/33 - Drive circuits, e.g. power electronics
  • H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
  • H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges

10.

VALVE DEVICE

      
Application Number 18331191
Status Pending
Filing Date 2023-06-08
First Publication Date 2024-12-12
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sekiguchi, Satoshi
  • Ishiguchi, Shoichi

Abstract

A valve device includes: a housing 10, defining an upstream side passage 12a and a downstream side passage 13a through which a fluid passes and an operation chamber C and a valve seat surface 11d interposed between the upstream side passage and the downstream side passage; a valve body 20, being reciprocated in the operation chamber to be seated and disengaged with respect to the valve seat surface; and a driving unit U, having a shaft 40 linked with the valve body and driving the valve body. In the valve device, the upstream side passage 12a and the downstream side passage 13a are arranged on a same axis L, and the valve seat surface 11d is disposed to be inclined with respect to the axis L, with the axis L as the center.

IPC Classes  ?

  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
  • F16K 1/36 - Valve members
  • F16K 1/42 - Valve seats
  • F16K 1/54 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

11.

IN-VEHICLE DEVICE TEMPERATURE ADJUSTMENT APPARATUS

      
Application Number 18733983
Status Pending
Filing Date 2024-06-05
First Publication Date 2024-12-05
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sugawara, Hideyuki
  • Sato, Ryuta

Abstract

An in-vehicle device temperature adjustment apparatus of the present invention includes: a first temperature adjustment circuit (2) circulating a first heat medium to adjust a temperature of a first device (4); a second temperature adjustment circuit (3) circulating a second heat medium to adjust a temperature of a second device (5); and a mixing valve (16) that is provided between the first temperature adjustment circuit (2) and the second temperature adjustment circuit (3), and mixes the first and second heat media to flow out to each of the temperature adjustment circuits (2, 3) as a mixed heat medium. The temperature adjustment apparatus controls a mixing valve (16) by calculating a target outflow temperature tgtTout of the mixed heat medium flowing out to the second temperature adjustment circuit (3), calculating the ratio of the first heat medium contained in the mixed heat medium as a flow ratio R based on inflow temperatures Tin1 and Tin2 of the first and second heat media and an outflow temperature Tout of the mixed heat medium, calculating an opening degree correction coefficient K from the flow ratio R and an opening degree θ of the mixing valve (16), calculating a target flow ratio tgtR from the inflow temperatures Tin1 and Tin2 and a target outflow temperature tgtTout, and calculating a target opening degree tgtθ of the mixing valve (16) from the opening degree correction coefficient K and the target flow ratio tgtR.

IPC Classes  ?

  • B60H 1/04 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant
  • B60H 1/00 - Heating, cooling or ventilating devices
  • B60K 6/28 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
  • B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling

12.

IN-VEHICLE DEVICE TEMPERATURE ADJUSTMENT APPARATUS

      
Application Number 18731646
Status Pending
Filing Date 2024-06-03
First Publication Date 2024-12-05
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sugawara, Hideyuki
  • Sato, Ryuta

Abstract

A temperature adjustment apparatus includes: a first temperature adjustment circuit causing a first pump to circulate a first heat medium; a second temperature adjustment circuit causing a second pump to circulate a second heat medium; and a mixing valve provided between the first temperature adjustment circuit and the second temperature adjustment circuit and mixes the first and second heat media as a mixed heat medium. The temperature adjustment apparatus calculates a target outflow temperature tgtTout of the mixed heat medium flowing out to the second temperature adjustment circuit, calculates the ratio of the first heat medium contained in the mixed heat medium as a flow ratio R from rotational speeds N1 and N2 of the first and second pumps and an opening degree θ of the mixing valve, and calculates an inflow temperature Tin1 of the first heat medium and an inflow temperature Tin2 of the second heat medium from outflow temperatures Tout and R of the mixed heat medium. Further, the temperature adjustment apparatus calculates an opening degree correction coefficient K from R and θ, calculates a target flow ratio tgtR from Tin1, Tin2, and tgtTout, and calculates a target opening degree tgtθ of the mixing valve (16) from tgtR and K to control the opening degree.

IPC Classes  ?

  • B60H 1/04 - Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant
  • B60H 1/00 - Heating, cooling or ventilating devices

13.

FLUID CONTROL VALVE UNIT AND VALVE TIMING CHANGE DEVICE

      
Application Number 18659002
Status Pending
Filing Date 2024-05-09
First Publication Date 2024-11-28
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ogasawara, Toshiki
  • Sugano, Kouji

Abstract

A fluid control valve unit includes: a fluid control valve V, including: an inlet 74; a communication port 75, 76; a sleeve 70 having a bottom end 70a and an opening end 70b and defining an axis S; and a spool 80 disposed in the sleeve to open and close the communication port; a cylindrical passage member 50, having: an inner circumferential surface 51, fit with the sleeve; a passage; an annular receiving part 53; and an opening part 52; a filter 60; and a stopper 110, receiving the opening end 70b of the sleeve 70 accommodated in the passage member 50. The filter 60 is integrally formed by a metal plate spring member to include an annular plate part 61, a filter part 62 surrounded by the annular plate part, and a plate spring piece extending from the annular plate part.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 31/163 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member the fluid acting on a piston

14.

VALVE TIMING CHANGING DEVICE

      
Application Number 18659006
Status Pending
Filing Date 2024-05-09
First Publication Date 2024-11-28
Owner MIKUNI CORPORATION (Japan)
Inventor Sugano, Kouji

Abstract

The valve timing changing device includes a vane rotor 10 that rotates integrally with a camshaft around an axis S of the camshaft and includes a lock pin 42; and a housing rotor Hr that is rotatable relative to the vane rotor around the axis within the range of a predetermined movable angle Δθ and whose relative rotation is locked by the lock pin. The housing rotor Hr includes a toothed member 30 having a tooth row 31 to which a driving force is applied, and a bottomed cylindrical housing member 20 fixed to the toothed member and accommodating the vane rotor. The housing member 20 is formed with a center of gravity eccentric from the axis S on a side that relatively reduces an imbalance amount m1 of the vane rotor.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups

15.

ELECTRIC DEVICE

      
Application Number 18594018
Status Pending
Filing Date 2024-03-04
First Publication Date 2024-11-28
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Yasugahira, Kei
  • Yoshida, Rui

Abstract

An electric device includes: an electric part 50, operating electrically; a housing body 10, being conductive and accommodating the electric part; a holder cover 20, covering the electric part accommodated in the housing body, being non-conductive and bonded to the housing body to hold a portion of the electric part; and a circuit substrate 70 disposed on an outer side of the holder cover and mounted with a control unit 76 exerting driving control on the electric part; and a grounding path, removing static electricity charged to a periphery of the electric part. The grounding path includes: a fastening screw 80a, fastening the circuit substrate to the holder cover and being conductive to the housing body; a conductive pattern 72a, provided in the circuit substrate and being conductive to the fastening screw; and a grounding terminal 29d, provided in the holder cover and being conductive to the conductive pattern 72a.

IPC Classes  ?

  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
  • H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
  • H02K 5/04 - Casings or enclosures characterised by the shape, form or construction thereof
  • H05K 1/02 - Printed circuits Details
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components

16.

LIQUID PUMP DEVICE

      
Application Number 18793932
Status Pending
Filing Date 2024-08-04
First Publication Date 2024-11-28
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Mikami, Yuichi
  • Ogi, Takeshi
  • Takahashi, Jun

Abstract

A liquid pump device sucking and discharging liquid includes: a pump unit 50, rotating to make the liquid flow; a housing H, accommodating the pump unit and defining a passage 14 of the liquid; and a temperature sensor 80 having a tip region 80a protruded in the passage 14 of the liquid to measure a temperature of the liquid flowing on the passage 14.

IPC Classes  ?

  • F04C 14/28 - Safety arrangementsMonitoring
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

17.

ELECTROMAGNETIC ACTUATOR

      
Application Number 18633546
Status Pending
Filing Date 2024-04-12
First Publication Date 2024-11-14
Owner MIKUNI CORPORATION (Japan)
Inventor Ogasawara, Toshiki

Abstract

An electromagnetic actuator includes a mover, a stator, a bobbin module, and a first annular seal member. The bobbin module includes: a through hole, through which the stator passes along an axis line; a bobbin side receiving part, adjacent to an outer side of one end opening of the through hole and receiving the first annular seal member; and a protrusion, protruding from an inner wall surface near the one end opening. The stator includes: an outer peripheral fitting part, fitted into the protrusion; and a stator side receiving part, receiving the first annular seal member in cooperation with the bobbin side receiving part. The bobbin module and the stator define a communication path that communicates from an internal space of the through hole deviated from the protrusion to the first annular seal member in an assembled state in which the outer peripheral fitting part is fitted into the protrusion.

IPC Classes  ?

  • H02K 41/02 - Linear motorsSectional motors
  • H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
  • H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs

18.

ELECTROMAGNETIC ACTUATOR

      
Application Number 18633553
Status Pending
Filing Date 2024-04-12
First Publication Date 2024-11-14
Owner MIKUNI CORPORATION (Japan)
Inventor Oomori, Yuuki

Abstract

An electromagnetic actuator includes: a mover, reciprocating along an axis line; a stator, accommodating the mover to be capable of reciprocating; a bobbin, arranged around the stator and around which a coil for excitation is wound; and a first annular seal member, interposed between the bobbin and the stator. The bobbin includes a through hole through which the stator passes, and a protrusion formed protruding from an inner wall surface near an end opening of the through hole. The stator includes an outer peripheral surface that is formed to be insertable into the through hole without contacting the inner wall surface and the protrusion and faces the inner wall surface in an area deviated from the protrusion, and an outer peripheral fitting part fitted into the protrusion. The first annular seal member is arranged in an area of the outer peripheral surface within the through hole.

IPC Classes  ?

  • H01F 7/16 - Rectilinearly-movable armatures
  • H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
  • H01F 7/128 - Encapsulating, encasing or sealing

19.

ELECTROMAGNETIC ACTUATOR

      
Application Number 18633556
Status Pending
Filing Date 2024-04-12
First Publication Date 2024-11-14
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kudo, Takeshi
  • Sasaki, Hiroki

Abstract

An electromagnetic actuator includes: a mover, reciprocating along a predetermined axis line; a first stator and a second stator, accommodating the mover to be capable of reciprocating in a direction of the axis line and arranged spaced apart in the direction of the axis line; and a bobbin, arranged around the first stator and the second stator and around which a coil for excitation is wound. The bobbin includes: a through hole, through which the first stator and the second stator pass; and a positioning part, partially formed in the through hole, allowing the first stator and the second stator to be fitted thereinto, and positioning the first stator and the second stator on the axis line.

IPC Classes  ?

  • H02K 41/02 - Linear motorsSectional motors
  • H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
  • H02K 33/02 - Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs

20.

ELECTROMAGNETIC ACTUATOR

      
Application Number 18634976
Status Pending
Filing Date 2024-04-14
First Publication Date 2024-11-14
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sasaki, Hiroki
  • Kudo, Takeshi

Abstract

An electromagnetic actuator includes: a mover, reciprocating along an axis line; a first stator and a second stator, accommodating the mover to be capable of reciprocating and arranged spaced apart in the direction of the axis line; a bobbin, arranged around the first stator and the second stator and around which a coil for excitation is wound; a tube member, surrounding the bobbin, connected to the first stator, forming a magnetic path and having a predetermined plate thickness; and a flat plate member, connected to the second stator and the tube member and forming a magnetic path. The tube member includes an annular end face having a width equal to the plate thickness on one end in the direction of the axis line, and is fixed to the flat plate member by metallurgical joining or press fitting with the annular end face closely joined to the flat plate member.

IPC Classes  ?

  • H01F 7/16 - Rectilinearly-movable armatures
  • H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
  • H01F 7/128 - Encapsulating, encasing or sealing

21.

THROTTLE APPARATUS FOR ENGINE

      
Application Number 18634102
Status Pending
Filing Date 2024-04-12
First Publication Date 2024-10-17
Owner MIKUNI CORPORATION (Japan)
Inventor Kiyono, Jun

Abstract

A throttle apparatus for an engine according to the present invention includes a pair of throttle bodies 2f and 2r disposed between a pair of banks Bf and Br of a V-type engine E, a pair of throttle bores 3 provided in the respective throttle bodies 2f and 2r and configured to guide intake air, throttle valves 5 supported to be openable/closable by a pair of throttle shafts 4 intersecting an arrangement direction of the banks and an axial direction of the throttle bores 3 and parallel to each other, and coupling portions 28 and 23 extending from the respective throttle bodies 2f and 2r in a direction approaching each other and configured to couple the throttle bodies 2f and 2r by being fastened at abutting portions 28b and 23c superimposed on each other with fastening members 30.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps

22.

INTAKE MANIFOLD AND OUTBOARD MOTOR

      
Application Number 18587997
Status Pending
Filing Date 2024-02-27
First Publication Date 2024-10-10
Owner MIKUNI CORPORATION (Japan)
Inventor Oosawa, Hirobumi

Abstract

An intake manifold includes: a surge tank, die-molded to temporarily store intake air; and branch pipes, in communication with the surge tank. The surge tank includes, on an outer wall thereof, a flange part and a reinforcement rib, a sensor unit configured to detect an intake air state quantity being installed to the a part. The flange part includes: a fitting hole, having an axis as a center to be fit with a detection part of the sensor unit; and boss parts, provided on a periphery of the fitting hole, and the flange part is formed to be rotationally symmetric with the axis as a center. The reinforcement rib includes a limitation piece interfering with a portion of the sensor unit to limit assembling at a time when the sensor unit is assembled erroneously for being deviated from a normal orientation.

IPC Classes  ?

  • F02M 35/116 - Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
  • F02M 35/10 - Air intakesInduction systems
  • F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles

23.

INTAKE MANIFOLD AND OUTBOARD MOTOR

      
Application Number 18592559
Status Pending
Filing Date 2024-03-01
First Publication Date 2024-10-10
Owner MIKUNI CORPORATION (Japan)
Inventor Oosawa, Hirobumi

Abstract

An intake manifold 2 suitable for an engine includes: a surge tank 100, die-molded to temporarily store intake air; and a plurality of branch pipes 211, 212, 213, 311, 312, 313, in communication with the surge tank. The surge tank 100 includes: a boss part 111, having a cylindrical shape; and boss reinforcement ribs 114, extending in a direction toward a center S of the boss part and connected with the boss part, the boss part and the boss reinforcement ribs being integrally formed on an outer wall of the surge tank.

IPC Classes  ?

  • F02M 35/10 - Air intakesInduction systems
  • F02M 35/104 - Intake manifolds
  • F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles

24.

INTAKE MANIFOLD AND INTAKE DEVICE

      
Application Number 18395656
Status Pending
Filing Date 2023-12-25
First Publication Date 2024-10-03
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Songprasert, Natthavud
  • Yanazawa, Hiroyuki

Abstract

An intake manifold M1 includes: a surge tank 10, formed in an elongated tubular shape in a direction of a predetermined axis S; branch pipes 20, extending from the surge tank; an upstream tubular part 50, continuous on an upstream side of the surge tank; an opening part 60, open at an upstream end of the upstream tubular part; a flange part 70, formed around the opening part; an annular seal groove 80, formed at the flange part around the opening part; and fastening parts 90, formed at the flange part around the annular seal groove to fasten a throttle unit. A groove width of the annular seal groove 80 is formed to decrease in the vicinity of the fastening part.

IPC Classes  ?

  • F02M 35/112 - Intake manifolds for engines with cylinders all in one line
  • F02M 35/10 - Air intakesInduction systems

25.

AIR AMOUNT ADJUSTMENT VALVE AND MULTIPLE THROTTLE DEVICE

      
Application Number 18436309
Status Pending
Filing Date 2024-02-08
First Publication Date 2024-09-19
Owner MIKUNI CORPORATION (Japan)
Inventor Kiyono, Jun

Abstract

A multiple throttle device 100 includes: a throttle body 12 having a plurality of intake passages 10; a plurality of throttle valves 20; a plurality of secondary passages 102 respectively bypassing the plurality of throttle valves 20; and an air amount adjustment valve 30 for adjusting an amount of air flowing through the plurality of secondary passages 102. The air amount adjustment valve 30 includes a valve plug 40, and a guide part 50 for guiding the valve plug 40 in the axial direction. Opening into the inner peripheral surface 51 of the guide part 50 are: a plurality of first communication holes 52 respectively communicating with downstream sides of the throttle valves 20 in the plurality of intake passages 10; and a second communication hole 54 communicating with a canister 9 for collecting fuel vapor. The actuator 60 adjusts a position of the valve plug 40 in the axial direction such that a first effective opening area of each of the first communication holes 52 which is not blocked by the valve plug 40 and a second effective opening area of the second communication hole 54 which is not blocked by the valve plug 40 change.

IPC Classes  ?

  • F02D 9/12 - Throttle valves specially adapted thereforArrangements of such valves in conduits having slidably-mounted valve-membersThrottle valves specially adapted thereforArrangements of such valves in conduits having valve-members movable longitudinally of conduit
  • F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir

26.

SOLENOID ACTUATOR

      
Application Number 18467870
Status Pending
Filing Date 2023-09-15
First Publication Date 2024-06-20
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kudo, Takeshi
  • Ogasawara, Toshiki

Abstract

A solenoid actuator 1 includes: a coil 3; a first stator 10 and a second stator 20 disposed with an air gap 11 therebetween in an axial direction so as to form a magnetic path 4 around the coil 3; and a mover 50 configured to be movable in the axial direction to a maximum stroke position (X=Xmax) from an original position (X=0) on a radially inner side of the first stator 10 toward the second stator 20 by a magnetic force generated by energizing the coil 3. The mover 50 has an annular projection 100 projecting in the axial direction from a peripheral edge portion of the mover 50. The second stator 20 includes: a second yoke 24; and a second press part 40 made of a magnetic material and disposed on an inner peripheral side of the second yoke 24 so as to at least partially form an annular recess 120 for receiving the annular projection 100 of the mover 50 at the maximum stroke position (X=Xmax).

IPC Classes  ?

  • H02K 41/02 - Linear motorsSectional motors
  • H02K 7/08 - Structural association with bearings
  • H02K 16/04 - Machines with one rotor and two stators

27.

ELECTRIC MODULE

      
Application Number 18277112
Status Pending
Filing Date 2021-03-17
First Publication Date 2024-04-18
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo
  • Ide, Yuusaku
  • Matsumoto, Kazuo

Abstract

Provided is an electric throttle valve 10 including: a valve body 16 including an accommodating space 19 therein and having an opening 25 that faces the accommodating space 19; a cover 11 secured to the valve body and covering the opening 25; and an electric motor 12 and a sensor 60 installed in the accommodating space 19, the cover 11 including a connector 30 for connection of a wiring between the electric motor 12 or the sensor 60 and outside, the connector 30 being installed in a desired direction with respect to the cover 11 and secured to the cover 11.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

28.

VALVE DEVICE

      
Application Number 18477025
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-04-11
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo

Abstract

A valve device includes a drive gear made of a resin at one end of the valve shaft and includes a detection target of an inductive sensor in the drive gear, the drive gear includes a lever member made of metal and integrated along with the detection target through insert molding in a state where a center portion is exposed in one side surface, an exposure portion of the lever member in the drive gear and the end of the valve shaft are caused to abut each other and rear surfaces of the abutting portions are fixed through laser welding through the outer hole to configure a valve shaft unit, and the lever member is provided with an arc hole extending in a circumferential direction on a radially outer side of the position of the welding with the end of the valve shaft.

IPC Classes  ?

  • F16K 31/53 - Mechanical actuating means with toothed gearing
  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps

29.

VALVE DEVICE

      
Application Number 18477023
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-04-11
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo

Abstract

In a valve device including: a plate-shaped drive gear provided at an end of a valve shaft made of metal; and, at the drive gear, a detection target of an inductive sensor detecting a rotation angle of the valve shaft, the drive gear has a lever member made of metal and integrated through insert molding in which a part thereof is exposed in the inner surface, the detection target is integrated along with the lever member through the insert molding on a side of the outer surface of the drive gear, and an exposure portion of the lever member at the drive gear including the lever member and the detection target and the end of the valve shaft are caused to abut each other, and a rear side of the abutting part is laser-welded from the side of an outer hole and is fixed thereby to configure a shaft unit.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
  • F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

30.

VALVE DEVICE

      
Application Number 18477026
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-04-11
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo
  • Tagaya, Taiki

Abstract

A torsion coil spring biasing and rotating a drive gear of a valve device in one direction and defining a rotation position of a valve body when an electric motor is not operating is included, one end of the torsion coil spring is locked at any one of two locking portions provided at the drive gear, the other end is locked at a casing rotatably supporting the valve shaft, the drive gear is a plate-shaped members including two locking portions and formed linearly symmetrically, the locking portions are formed into hook shapes including extending portions extending in a direction away from an inner surface of the drive gear and distal end portions projecting along the inner surface from distal ends of the extending portions. The drive gear includes openings at positions at which the openings overlap the distal end portions in a view in a direction of the axial line.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor

31.

PUMP DEVICE

      
Application Number 18274207
Status Pending
Filing Date 2022-02-02
First Publication Date 2024-03-14
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Takehana, Norio
  • Sasaki, Takumi

Abstract

A pump device includes: a rotor unit that exerts a pumping action on fluid; a housing for defining a suction port, a discharge port, and a storage chamber that stores the rotor unit; and a rotary shaft that is combined with the rotor unit and protrudes outside the housing and that rotates about a predetermined axis line. The housing includes: a bottomed cylindrical housing body integrally having a joint wall that is joined to an application object, an outer peripheral wall that defines the storage chamber in cooperation with the joint wall, and a spigot joint part that protrudes from the joint wall in the axis line direction and that is fitted to the application object; and a plate-like housing cover that is combined with the housing body in order to close the storage chamber.

IPC Classes  ?

  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

32.

VALVE DEVICE

      
Application Number 18331187
Status Pending
Filing Date 2023-06-08
First Publication Date 2024-02-15
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sekiguchi, Satoshi
  • Ishiguchi, Shoichi

Abstract

A valve device includes: a housing H, defining an upstream side passage 41a and a downstream side passage 22a through which a fluid passes, a valve accommodation chamber h1 interposed between the upstream side passage and the downstream side passage, and an opening part 41b located at a downstream end of the upstream side passage; and a cantilevered valve body 30, disposed in the valve accommodation chamber, and having a support part 32 that is elastically deformable and cantilevered and, on a free end side of the support part, a valve part 31 that is plate-shaped and opening and closing the opening part. In the valve device, the downstream side passage 22a is formed to expand in a direction along a plane 31a, 31b of the valve part in a state in which the valve part 31 is fully opened.

IPC Classes  ?

  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
  • F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

33.

Throttle device for engine

      
Application Number 18218629
Grant Number 12196152
Status In Force
Filing Date 2023-07-06
First Publication Date 2024-02-01
Grant Date 2025-01-14
Owner MIKUNI CORPORATION (Japan)
Inventor Akase, Shogo

Abstract

b of the support shaft 17 from an end surface of the intermediate gear 19 is set to be longer than a projecting length L2 of the driving gear 16 from an opening surface of the positioning hole 20.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

34.

VALVE DEVICE

      
Application Number 18327084
Status Pending
Filing Date 2023-06-01
First Publication Date 2024-02-01
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kawarai, Hiroyuki
  • Tochigi, Yasuhiro
  • Fujitani, Toshiaki

Abstract

A valve device includes a housing and a cylindrical valve body. The housing defines: an inflow port; a first outflow port and a second outflow port which are opened apart in a circumferential direction and respectively have first and second opening widths; and an accommodation chamber. The valve body is arranged in the accommodation chamber to open and close the first and second outflow ports and includes: an internal passage; a first outflow communication port which expands in one direction in the circumferential direction continuously with a region facing the first outflow port, and has an opening width larger than the first opening width; and a second outflow communication port which expands in the other direction in the circumferential direction continuously with a region facing the second outflow port, and has an opening width larger than the second opening width.

IPC Classes  ?

  • F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
  • F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor

35.

ELECTROMAGNETIC ACTUATOR

      
Application Number 18312588
Status Pending
Filing Date 2023-05-04
First Publication Date 2024-01-04
Owner MIKUNI CORPORATION (Japan)
Inventor Dakiishi, Ryosuke

Abstract

An electromagnetic actuator includes a stator, a coil for excitation, a mover, a shaft of a single outer diameter, and a buffer unit. The mover moves in a predetermined axis direction to move to an actuation position due to energization of the coil and return to a rest position due to non-energization of the coil. The shaft is fixed to the mover and exerts a driving force to outside. The buffer unit is held at the mover and positions the mover at the rest position while absorbing impact when the mover returns to the rest position. The buffer unit includes: a rod abutting against the stator at the rest position; a biasing member biasing the rod toward the stator; and a buffer member interposed between the rod and the shaft. The mover includes a fitting hole into which the shaft is fitted and a receiving part receiving the biasing member.

IPC Classes  ?

  • H01F 7/121 - Guiding or setting position of armatures, e.g. retaining armatures in their end position
  • H01F 7/16 - Rectilinearly-movable armatures

36.

Pump device

      
Application Number 18298361
Grant Number 11982270
Status In Force
Filing Date 2023-04-10
First Publication Date 2023-12-28
Grant Date 2024-05-14
Owner MIKUNI CORPORATION (Japan)
Inventor Ino, Yasuhiro

Abstract

The pump device includes a housing defining insertion holes for a rotation shaft, inlets and outlets, and an internal passage; a first pump element; and a second pump element. The internal passage includes first suction passages communicating from the inlet to a first suction port facing the first end surface of the first pump element directed to one end side; first discharge passages communicating from a first discharge port facing the first end surface to the outlet; second suction passages passing around the first pump element to communicate from the inlet to a second suction port facing the second end surface of the second pump element; and second discharge passages passing around the first pump element to communicate from a second discharge port facing the second end surface to the outlet.

IPC Classes  ?

  • F04C 14/26 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston typePumping installations
  • F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 2/08 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

37.

SOLENOID ACTUATOR AND METHOD FOR MANUFACTURING SOLENOID ACTUATOR

      
Application Number 18187902
Status Pending
Filing Date 2023-03-22
First Publication Date 2023-11-30
Owner MIKUNI CORPORATION (Japan)
Inventor Saito, Hirofumi

Abstract

A solenoid actuator 1 (1A, 1B) includes: a coil 3; a first stator 10 and a second stator 20 disposed with an air gap 11 therebetween in an axial direction so as to form a magnetic path 4 around the coil 3; and a mover 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator 10 by a magnetic force generated by energizing the coil 3. The first stator 10 includes: a first yoke 14; and a first cylindrical member 30 fixed to an inner peripheral side of the first yoke 14 and forming the air gap 11.

IPC Classes  ?

  • H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
  • H01F 7/16 - Rectilinearly-movable armatures

38.

Solenoid actuator

      
Application Number 18187826
Grant Number 12211645
Status In Force
Filing Date 2023-03-22
First Publication Date 2023-11-30
Grant Date 2025-01-28
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ogasawara, Toshiki
  • Saito, Hirofumi

Abstract

A solenoid actuator 1 includes: a coil 3; a first stator 10 that includes a first yoke 14 and a cylindrical guide 30 fixed to an inner peripheral side of the first yoke 14; a second stator 20 arranged to face the first stator 10 in an axial direction so as to form a magnetic path 4 around the coil 3 together with the first stator 10; and a mover 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator 10 by a magnetic force generated by energizing the coil 3. The cylindrical guide 30 includes: a magnetic tube 32 disposed in contact with an inner peripheral surface of the first yoke 14; and a non-magnetic layer 34 covering an inner peripheral surface of the magnetic tube 32. A minimum distance d1 between the second stator 20 and the magnetic tube 32 is greater than a minimum distance d2 between the second stator 20 and the mover 50 at the original position.

IPC Classes  ?

  • H01F 7/121 - Guiding or setting position of armatures, e.g. retaining armatures in their end position
  • H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
  • H01F 7/16 - Rectilinearly-movable armatures

39.

COIL WINDING PORTION STRUCTURE FOR STATOR

      
Application Number 18143858
Status Pending
Filing Date 2023-05-05
First Publication Date 2023-11-16
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Oyamada, Kan
  • Takahashi, Jun

Abstract

In a motor unit that includes a stator including coils, a rotor, and an insulator attached to the stator, the insulator includes a bobbin portion around which a first coil wire or a second coil wire is wound, and a tubular portion provided outside the bobbin portion in a radial direction, terminals to which the first coil wire and the second coil wire are connected being mounted on the tubular portion, the tubular portion includes, at an upper end thereof between the coils and the terminals, base portions and guide portions receiving a load of the first coil wire or the second coil wire when the first coil wire or the second coil wire is wound in the coils such that the base portions and the guide portions are aligned in a circumferential direction.

IPC Classes  ?

  • H02K 3/28 - Layout of windings or of connections between windings
  • H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
  • H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

40.

FLUID CONTROL VALVE UNIT AND VALVE TIMING CHANGING DEVICE

      
Application Number 18164567
Status Pending
Filing Date 2023-02-04
First Publication Date 2023-10-26
Owner MIKUNI CORPORATION (Japan)
Inventor Sugano, Kouji

Abstract

A fluid control valve unit includes: a fluid control valve including a sleeve that defines an axis and a spool slidably disposed in the sleeve; a passage member including an inner peripheral surface to which the sleeve is fitted, passages, an annular receiving part facing one end of the sleeve, an opening adjacent to the annular receiving part, and an annular groove formed adjacent to the other end of the sleeve and recessed from the inner peripheral surface; a filter member including an elastic part sandwiched between the one end of the sleeve and the annular receiving part and exerting a biasing force in the axial direction; and a snap ring fitted in the annular groove for receiving the other end of the sleeve and detachably receiving the spool.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides

41.

PUMP DEVICE AND OUTBOARD MOTOR

      
Application Number 18152094
Status Pending
Filing Date 2023-01-09
First Publication Date 2023-10-05
Owner MIKUNI CORPORATION (Japan)
Inventor Ino, Yasuhiro

Abstract

The disclosure provides a pump device and an outboard motor equipped with the same. The pump device to be applied to an outboard motor includes a housing that has an insertion hole into which a drive shaft driven by an engine is to be inserted; and a resin cover member that is fixed to the housing to cover an outer wall surface of the housing in a region having the insertion hole. The cover member has a small-diameter insertion hole having an inner diameter smaller than the insertion hole to allow the drive shaft to be rotatably inserted thereto.

IPC Classes  ?

  • B63H 20/00 - Outboard propulsion units, e.g. outboard motors or Z-drivesArrangements thereof on vessels

42.

Fluid control valve unit and valve timing changing device

      
Application Number 18154849
Grant Number 12209514
Status In Force
Filing Date 2023-01-16
First Publication Date 2023-09-14
Grant Date 2025-01-28
Owner MIKUNI CORPORATION (Japan)
Inventor Sugano, Kouji

Abstract

A fluid control valve unit includes: a fluid control valve including a sleeve in a bottomed cylindrical shape defining an axis, and a spool slidably accommodated in the sleeve in a direction of the axis; a cylindrical passage member including an inner peripheral surface to which the sleeve is fitted, a receiving part for receiving an end of the sleeve in the direction of the axis, and an annular groove recessed from the inner peripheral surface; and a snap ring including a notch with a predetermined gap and fitted in the annular groove to be capable of restricting the fluid control valve accommodated in the passage member from falling off in the direction of the axis and to be capable of discharging fluid flowing through a discharge passage formed in the passage member.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
  • F16K 31/48 - Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot

43.

LIQUID CONTAINER

      
Application Number 18173497
Status Pending
Filing Date 2023-02-23
First Publication Date 2023-09-07
Owner MIKUNI CORPORATION (Japan)
Inventor Oikawa, Takumi

Abstract

A liquid container according to the present invention includes: a container 2 temporarily storing a fuel; and a drain unit 3 discharging the fuel from a communication hole 11 provided at a lower portion of the container 2, and the drain unit 3 includes a valve body 15 formed of metal with higher strength and hardness than those of the container 2 made of resin, including a drain passage establishing communication between the communication hole 11 and outside and a valve seat facing the drain passage, which are formed therein, and detachably fixed to the container 2, and a drain screw 16 having a valve element attached to the valve body 15 for opening and closing the drain passage by being separated from or abutting the valve seat.

IPC Classes  ?

  • B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
  • B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines

44.

Pump device including return passage for returning fluid from discharge passage to suction passage

      
Application Number 18154029
Grant Number 11867177
Status In Force
Filing Date 2023-01-12
First Publication Date 2023-09-07
Grant Date 2024-01-09
Owner MIKUNI CORPORATION (Japan)
Inventor Ino, Yasuhiro

Abstract

A pump device includes a housing, a pump element, and an on-off valve. The housing includes a suction passage defining a suction port at an upstream end, a discharge passage defining a discharge port at a downstream end, and a return passage returning a part of a fluid flowing through the discharge passage to midway of the suction passage. The pump element is accommodated in the housing and rotates around a predetermined axis to suck, pressurize, and discharge a fluid. The on-off valve opens and closes the return passage. In the suction passage upstream of an opening at which the return passage is opened to the suction passage, the housing includes a directional wall which directs a flow of a suction fluid sucked into the suction passage from the suction port to divert from a flow of a return fluid returned from the return passage.

IPC Classes  ?

  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F01M 1/02 - Pressure lubrication using lubricating pumps
  • F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 14/24 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves
  • F04C 14/26 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels

45.

Fluid control valve and valve timing changing device

      
Application Number 18154851
Grant Number 12134976
Status In Force
Filing Date 2023-01-16
First Publication Date 2023-09-07
Grant Date 2024-11-05
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sugano, Kouji
  • Sasaki, Tetsuya

Abstract

A fluid control valve includes: a sleeve in a bottomed cylindrical shape, including an inlet, communication ports, an inner peripheral surface, and an inflow annular groove recessed from the inner peripheral surface in a region facing the inlet; a spool slidably disposed on the inner peripheral surface in the sleeve to open and close the communication ports; a C-shaped leaf spring formed by bending a leaf spring into an annular shape with two ends facing each other to form a notch and disposed in the inflow annular groove capable of being contracted in diameter to open and close the inlet; and a restricting part provided on the sleeve for restricting diameter contraction of the C-shaped leaf spring beyond a predetermined inner diameter and for restricting a position of the notch in a region away from the inlet.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F01L 1/356 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate
  • F16K 31/48 - Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot
  • F16K 31/524 - Mechanical actuating means with crank, eccentric, or cam with a cam
  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 15/02 - Check valves with guided rigid valve members
  • F16K 15/14 - Check valves with flexible valve members

46.

FUEL SUPPLY DEVICE

      
Application Number JP2022007620
Publication Number 2023/162093
Status In Force
Filing Date 2022-02-24
Publication Date 2023-08-31
Owner MIKUNI CORPORATION (Japan)
Inventor Tanaka, Isamu

Abstract

The present invention comprises: a fuel delivery pipe 35 that extends along the direction in which cylinders of an engine are arranged and that supplies fuel to a plurality of fuel injection valves; a pulsation damper 40 that is installed to a side surface of the fuel delivery pipe 35 and absorbs fluctuations in the pressure of the fuel in the fuel delivery pipe 35; and a damper pressing plate 50 that fixes the fuel delivery pipe 35 and the pulsation damper 40. The damper pressing plate 50 is configured from a U-shaped first plate 51 that is disposed so as to wrap around the fuel delivery pipe 35 and the pulsation damper 40, and a second plate 42 that supports the pulsation damper 40. The first plate 51 and the second plate 52 are fixed with a snap-fit-type fixation part such that the pulsation damper 40 is fixed and biased toward the fuel delivery pipe 35.

IPC Classes  ?

  • F02M 55/00 - Fuel-injection apparatus characterised by their fuel conduits or their venting means
  • F02M 55/02 - Conduits between injection pumps and injectors

47.

THROTTLE DEVICE

      
Application Number 18166250
Status Pending
Filing Date 2023-02-08
First Publication Date 2023-08-24
Owner MIKUNI CORPORATION (Japan)
Inventor Kiku, Yuta

Abstract

In a throttle device including: a throttle shaft to which a throttle valve is secured; a motor; and a deceleration mechanism decelerating rotation of a drive shaft of the motor and transmitting the rotation to the throttle shaft, the deceleration mechanism includes a throttle gear secured to the throttle shaft, the throttle gear includes a tubular ring into which the throttle shaft is detachably inserted and a gear main body including a gear portion, and the gear main body is formed of a resin by insert processing including the ring.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps

48.

ROTARY VALVE DEVICE

      
Application Number 17966893
Status Pending
Filing Date 2022-10-17
First Publication Date 2023-06-08
Owner MIKUNI CORPORATION (Japan)
Inventor Ishiguchi, Shoichi

Abstract

The rotary valve device includes a valve 30, a housing H having a joining surface 14b1 located at ends of a fitting hole 14a and a through hole 16, a thermostat 110 partially accommodated in the through hole 16, a cylindrical seal member 80, an urging spring 90, and a passage member 60. The passage member 60 includes a cylindrical holding member 61 that is fitted into the fitting hole 14a and holds the cylindrical seal member 80 and the urging spring 90, and a connector member 62. The connector member 62 includes an annular fitting recess 62a3 into which a part of the cylindrical holding member 61 is fitted, and a detour passage 62a4 that is divided from the fitting recess by a wall portion to partially accommodate the thermostat and bypasses the cylindrical seal member to communicate with the through hole.

IPC Classes  ?

  • F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
  • F16K 31/00 - Operating meansReleasing devices

49.

LIQUID PUMP DEVICE

      
Application Number 17890226
Status Pending
Filing Date 2022-08-17
First Publication Date 2023-03-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Mikami, Yuichi
  • Ogi, Takeshi
  • Takahashi, Jun

Abstract

A liquid pump device sucking and discharging liquid includes: a pump unit 50, rotating to make the liquid flow; a housing H, accommodating the pump unit and defining a passage 14 of the liquid; and a temperature sensor 80 having a tip region 80a protruded in the passage 14 of the liquid to measure a temperature of the liquid flowing on the passage 14.

IPC Classes  ?

  • F04C 14/28 - Safety arrangementsMonitoring
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

50.

Electric oil pump and control system thereof

      
Application Number 17870788
Grant Number 12066019
Status In Force
Filing Date 2022-07-21
First Publication Date 2023-02-09
Grant Date 2024-08-20
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Miura, Osamu
  • Ota, Yasuaki
  • Doi, Takashi

Abstract

An electric oil pump includes a pump unit, rotating to make oil flow, a motor driving the pump unit, a control unit exerting driving control on the motor, and a housing accommodating the pump unit, the motor, and the motor control unit. In the electric oil pump, the motor control unit directly receives detection information of a temperature sensor detecting a temperature of the oil and exerts driving control on the motor based on the detection information.

IPC Classes  ?

  • F04B 49/10 - Other safety measures
  • F04B 17/03 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
  • F04B 49/06 - Control using electricity
  • F16H 57/04 - Features relating to lubrication or cooling

51.

Oil pump device

      
Application Number 17832151
Grant Number 12196202
Status In Force
Filing Date 2022-06-03
First Publication Date 2022-12-29
Grant Date 2025-01-14
Owner MIKUNI CORPORATION (Japan)
Inventor Kusanagi, Hideaki

Abstract

The present invention provides an oil pump device capable of preventing foreign matters from getting caught at a sliding part of an oil pump, and thus of preventing a situation where the oil pump is locked and prevented from rotating. The oil pump device includes an oil pump connected to a supply target apparatus by a hydraulic circuit, the oil pump discharging and supplying oil to the supply target apparatus through the hydraulic circuit; a motor driving the oil pump; a trapping member interposed along the hydraulic circuit, the trapping member trapping a foreign matter mixed in the oil discharged from the oil pump; and a motor control unit controlling the motor to perform a normal control mode of driving the oil pump in a normal control rotation range and perform, at operational start of the oil pump, a lock-avoiding mode of driving the oil pump with a lock-avoiding rotational speed set in advance as a lower limit.

IPC Classes  ?

  • F04C 14/06 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C 14/08 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
  • F04C 14/28 - Safety arrangementsMonitoring
  • F16H 57/04 - Features relating to lubrication or cooling

52.

MICCAL

      
Application Number 1696535
Status Registered
Filing Date 2022-08-03
Registration Date 2022-08-03
Owner MIKUNI CORPORATION (Japan)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Measuring or testing machines and instruments; telecommunication machines and apparatus; personal digital assistants; computers and their peripherals; computer programs; application software; downloadable computer programs; phonograph records; downloadable music files; downloadable image files; recorded video discs and video tapes; electronic publications. Designing of machines, apparatus, instruments, and their parts, or systems composed of such machines, apparatus and instruments; providing information services relating to designing of machines, apparatus, instruments and their parts, or systems composed of such machines, apparatus and instruments; design and development of computer hardware; advisory and information services relating to the design and development of computer hardware; design services; providing information services relating to design services; computer software design, computer programming, or maintenance of computer software; providing information relating to computer software design, computer programming, or maintenance of computer software; creating or maintaining web sites for others; providing information relating to creating or maintaining web sites for others; designing, creating or maintaining computer software for others; providing information relating to designing, creating or maintaining computer software for others; designing, creating or maintaining computer systems; providing information relating to designing, creating or maintaining computer systems; designing, programming or maintaining communication network systems; providing information relating to designing, programming or maintaining communication network systems; technological advice relating to computers, automobiles and industrial machines and providing information relating thereto; rental of computers; providing information relating to rental of computers; providing computer programs on data networks; information services relating to providing computer programs on data networks; providing application software using communication network; information services relating to providing application software using communication network; rental of server memory space on the communication network; providing information relating to rental of server memory space on the communication network; computer server hosting; providing information relating to computer server hosting; web site hosting services; providing information relating to web site hosting services.

53.

Pump device with air introduction hole that opens into pump chamber at predetermined opening time immediately before suction stroke

      
Application Number 17696902
Grant Number 11795945
Status In Force
Filing Date 2022-03-17
First Publication Date 2022-10-27
Grant Date 2023-10-24
Owner MIKUNI CORPORATION (Japan)
Inventor Takehana, Norio

Abstract

The disclosure provides a pump device capable of suppressing hydraulic amplitude and reducing noise or vibration associated with hydraulic amplitude while simplifying the structure. The pump device includes: a housing which defines a suction port, a discharge port, and an accommodation chamber; and a pump unit which is arranged in the accommodation chamber and which defines a pump chamber that expands and contracts to exert a pumping action including a suction stroke and a pressurization and discharge stroke on a fluid. The housing includes an air introduction hole that is opened to introduce air into the pump chamber at a predetermined opening timing immediately before the suction stroke is completed.

IPC Classes  ?

  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups

54.

PUMP DEVICE

      
Application Number JP2022003925
Publication Number 2022/219886
Status In Force
Filing Date 2022-02-02
Publication Date 2022-10-20
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Takehana Norio
  • Sasaki Takumi

Abstract

A pump device according to the present invention is provided with: a rotor unit (Ru) that provides a pumping effect to fluid; a housing (H) for demarcating a suction port (15), a discharge port (16), and a storage chamber (13) that stores the rotor unit; and a rotary shaft (30) that is combined with the rotor unit and protrudes outside the housing and that rotates about a predetermined axial line (S). The housing (H) includes: a bottomed cylindrical housing body (10) integrally having a joint wall (11) that is joined to an object to be applied, an outer peripheral wall (12) that demarcates the storage chamber in cooperation with the joint wall, and a spigot joint part (14) that protrudes from the joint wall in the axial line direction and that is fitted to the object to be applied; and a plate-like housing cover (20) that is combined with the housing body in order to close the storage chamber. Accordingly, it is possible to achieve thinning and size reduction while ensuring mechanical strength.

IPC Classes  ?

  • F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

55.

Rotation driving device

      
Application Number 17578399
Grant Number 11624424
Status In Force
Filing Date 2022-01-18
First Publication Date 2022-10-06
Grant Date 2023-04-11
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Shiokawa, Hisashi
  • Ihara, Daiki
  • Yagoh, Shota
  • Takami, Katsushi

Abstract

A rotation driving device includes: a body 10, made of resin, and having an accommodation hole 13 in a cylindrical shape with an axis S as a center; a motor M, comprising a rotor 60 provided in an accommodation hole of the body and rotating around the axis and a rotation shaft 40 integrally rotating around the axis with the rotor and extending in an axial direction; a first bearing B1 fixed to an end side of the body and a second bearing B2 fixed to the other end side of the body in the axial direction, so as to rotatably support the rotation shaft; and a first cover member 110 connected to the one end side of the body and a second cover member 120 connected to the other end side of the body.

IPC Classes  ?

  • H02K 5/02 - Casings or enclosures characterised by the material thereof
  • F16H 57/02 - GearboxesMounting gearing therein
  • F16H 1/32 - Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
  • F16H 57/021 - Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
  • H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
  • H02K 7/08 - Structural association with bearings

56.

Valve timing change device

      
Application Number 17605146
Grant Number 11933200
Status In Force
Filing Date 2019-07-09
First Publication Date 2022-09-29
Grant Date 2024-03-19
Owner MIKUNI CORPORATION (Japan)
Inventor Murasaka, Riki

Abstract

a of the housing on a first direction side of an axial direction of the vane rotor and contacting the one end portion of the spring so as to be biased by the spring; and a retaining portion 34 disposed on the first direction side of the one end portion of the spring and extending from the first protruding portion so as to restrict movement of the one end portion of the spring in the first direction. The first protruding portion and the retaining portion are formed integrally with the housing.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear

57.

Fluid control valve

      
Application Number 17695192
Grant Number 12140248
Status In Force
Filing Date 2022-03-15
First Publication Date 2022-09-22
Grant Date 2024-11-12
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo
  • Ide, Yuusaku
  • Tanaka, Yuuta

Abstract

Provided is an electric throttle valve incorporating a deceleration mechanism in a housing space between a cover including a connector and a valve body with the valve body and the cover laser-welded to seal the housing space, in which the deceleration mechanism includes an intermediate shaft disposed to be parallel to a motor shaft and a valve shaft, a first intermediate gear engaged with a motor gear secured to an end portion of the motor shaft, and a second intermediate gear engaged with a valve gear secured to the valve shaft, the first intermediate gear and the second intermediate gear are disposed to be aligned in an axial direction of the intermediate shaft and are integrally configured, the first intermediate gear is disposed to be closer to the electric motor than the second intermediate gear, and the connector is disposed above the motor shaft and on a side of the second intermediate gear.

IPC Classes  ?

  • F16K 31/53 - Mechanical actuating means with toothed gearing
  • F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves

58.

Transmission mechanism and fluid control valve

      
Application Number 17696310
Grant Number 11492983
Status In Force
Filing Date 2022-03-16
First Publication Date 2022-09-22
Grant Date 2022-11-08
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo
  • Ide, Yuusaku
  • Ota, Hiroki

Abstract

A transmission mechanism includes: an intermediate shaft secured to a support portion provided in a valve body of an electric throttle valve and disposed in parallel to a motor shaft and a valve shaft; and an intermediate gear rotatably disposed at the intermediate shaft, in which the intermediate gear has a first intermediate gear engaged with a motor gear secured to the motor shaft and a second intermediate gear engaged with a valve gear secured to the valve shaft, the first intermediate gear and the second intermediate gear are integrally configured to be aligned in an axial direction of the intermediate shaft, a hemispherical recessed portion recessed upward around an axial center of the intermediate shaft is formed at a lower end portion of the intermediate gear, and a projecting portion projecting upward in a hemispherical shape around the axial center of the intermediate shaft and supporting the recessed portion is formed in a surface of the support portion facing the recessed portion of the intermediate gear.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02B 37/12 - Control of the pumps
  • F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
  • F02D 9/02 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

59.

ELECTRICAL MODULE

      
Application Number JP2021010846
Publication Number 2022/195767
Status In Force
Filing Date 2021-03-17
Publication Date 2022-09-22
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sanekata, Yuuhei
  • Suzuki, Keigo
  • Ide, Yuusaku
  • Matsumoto, Kazuo

Abstract

An electric throttle valve 10 provided with a valve body 16 comprising an accommodating space 19 in the inside thereof and having an opening 25 that faces the accommodating space 19, a cover 11 that is fixed to the valve body and covers the opening 25, and an electric motor 12 and a sensor 60 that are installed in the accommodating space 19, the cover 11 being provided with a connector 30 for connecting wiring between the electric motor 12 or the sensor 60 and the outside, and the connector 30 being installed in a desired orientation with respect to the cover 11 and being fixed to the cover 11.

IPC Classes  ?

  • G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
  • G01D 5/12 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means

60.

Intake device for multiple-cylinder engine and fuel delivery pipe for intake device

      
Application Number 17690586
Grant Number 11519341
Status In Force
Filing Date 2022-03-09
First Publication Date 2022-09-15
Grant Date 2022-12-06
Owner MIKUNI CORPORATION (Japan)
Inventor Kiku, Yuta

Abstract

The present invention provides an intake device and a fuel delivery pipe for a multiple-cylinder engine including a transpiration gas passage or an intake air pressure collecting passage capable of reducing the number of components and improving assembly operability. The intake device and the fuel delivery pipe for a multiple-cylinder engine include: a throttle body including a plurality of bores, each of which communicates with an inside of each cylinder of the engine, and provided with throttle valves for adjusting intake volumes inside the bores in an openable and closable manner; injectors provided in the throttle body and injecting a fuel to the bores; a delivery pipe for supplying the fuel to the injectors; and an intake pipe communication passage connected to an inside of the bores and communicating with the inside of the bores, and the intake pipe communication passage is formed integrally with the delivery pipe.

IPC Classes  ?

  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatusArrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02M 35/10 - Air intakesInduction systems

61.

MICCAL

      
Serial Number 79355520
Status Registered
Filing Date 2022-08-03
Registration Date 2024-12-24
Owner MIKUNI CORPORATION (Japan)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

measuring machines for setting calibration data, adjustment data, and comparison data of an engine controller; testing machines for setting calibration data, adjustment data, and comparison data of an engine controller; instruments for setting calibration data, adjustment data, and comparison data of an engine controller; telecommunication machines and apparatus, namely, wire communication machines and apparatus, automatic telegraph apparatus, manual telegraph apparatus, radio communication machines and apparatus, vehicular radio communication machines and apparatus, intercommunication apparatus, transmitting sets for telecommunication, transmitter; transmitters of electronic signals; personal digital assistants; computers and computer peripherals; downloadable computer diagnostic programs; downloadable computer application software, namely, software for setting calibration data of engine controller, for setting adjustment data of engine controller, and for setting comparison data of engine controller; downloadable computer programs for setting calibration data, adjustment data, and comparison data of an engine controller Designing of machines, apparatus, instruments, and their parts, and systems composed of such machines, apparatus and instruments; providing information services relating to designing of machines, apparatus, instruments and their parts, and systems composed of such machines, apparatus and instruments; design and development of computer hardware; advisory and information services relating to the design and development of computer hardware; engineering design services; providing information services relating to engineering design services; computer software design for others, computer programming for others, and maintenance of computer software; providing information relating to computer software design, computer programming, and maintenance of computer software; creating and maintaining web sites for others; providing information relating to creating and maintaining web sites for others; designing, creating and maintaining computer software for others; providing information relating to designing, creating and maintaining computer software for others; designing, creating and maintaining computer systems for others; providing information relating to designing, creating and maintaining computer systems for others; designing, programming and maintaining communication network systems; providing information relating to designing, programming and maintaining communication network systems; technological advice relating to the operation of computers, automobiles and industrial machines and providing information relating thereto; rental of computers; providing information relating to rental of computers; providing an online network environment that features technology that enables users to share data; information services relating to providing computer programs on data networks; providing temporary use of web-based software application for setting calibration data, adjustment data, and comparison data of an engine controller via global computer networks; information services relating to providing application software using global computer networks; rental of server memory space on global computer networks; providing information relating to rental of server memory space on global computer networks; hosting the web sites of others on a computer server for global computer networks; providing information relating to hosting the web sites of others on a computer server for global computer networks; web site hosting services; providing information relating to web site hosting services

62.

Control device of brushless DC motor

      
Application Number 17559238
Grant Number 11646688
Status In Force
Filing Date 2021-12-22
First Publication Date 2022-06-30
Grant Date 2023-05-09
Owner MIKUNI CORPORATION (Japan)
Inventor Kobayashi, Naoki

Abstract

The present invention includes a phase angle detection unit generating a phase angle signal switched at a timing at which a cogging torque generated with the rotation of a rotor of a brushless DC motor reaches near a peak on a negative side hindering the rotation of the rotor, an inverter circuit energizing coils of respective phases of the brushless DC motor by switching elements according to an input of a driving signal, an energization period calculation unit calculating an energization period Tw from a target rotation speed set for the brushless DC motor, and a drive control unit energizing the coils sequentially by outputting the driving signal to the respective switching elements for each energization period, gradually increasing a duty of the driving signals to the switching elements at a start of each energization period, and decreasing the duty after the phase angle signal is switched.

IPC Classes  ?

  • H02P 23/14 - Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
  • H02P 25/03 - Synchronous motors with brushless excitation
  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
  • H02P 6/10 - Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
  • F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

63.

THROTTLE DEVICE AND METHOD FOR CONTROLLING SAME

      
Application Number JP2020039562
Publication Number 2022/085117
Status In Force
Filing Date 2020-10-21
Publication Date 2022-04-28
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sekiguchi Shinichi
  • Kitaoka Tatsuya

Abstract

A throttle device according to the present invention includes: a throttle valve (30) which opens and closes a main passage; a body (10) which includes the main passage, a secondary passage that detours around the throttle valve, and a gas passage that introduces fuel vapor gas into the main passage; a first valve body (40) which opens and closes the secondary passage; a second valve body (60) which opens and closes the gas passage; and a solenoid actuator (90) which has a plunger (91) that applies drive force to the first valve body and the second valve body so as to close the first valve body and the second valve body in a resting position, open only the first valve body at a maximum stroke position, and open only the second valve body in a stroke region between the resting position and a middle stroke position that has less stroke volume than the maximum stroke position. Thus, it is possible to limit increases in dedicated components, the structure can be simplified and made low-cost and compact, and the fuel vapor gas can reliably be collected without emission to the outside.

IPC Classes  ?

  • F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
  • F02D 9/02 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

64.

Accelerator pedal device

      
Application Number 17603001
Grant Number 11981202
Status In Force
Filing Date 2020-02-29
First Publication Date 2022-04-21
Grant Date 2024-05-14
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Nagashima, Jun
  • Miyazaki, Satoshi
  • Urano, Takahiro

Abstract

n) for specifying the maximum stepping position in the vicinity of the boss section.

IPC Classes  ?

  • B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
  • G05G 1/30 - Controlling members actuated by foot
  • G05G 1/44 - Controlling members actuated by foot pivoting
  • G05G 5/04 - Stops for limiting movement of members, e.g. adjustable stop

65.

Strain wave gear unit, gear transmission device, and valve timing changing device

      
Application Number 17428269
Grant Number 11761525
Status In Force
Filing Date 2019-09-10
First Publication Date 2022-04-07
Grant Date 2023-09-19
Owner MIKUNI CORPORATION (Japan)
Inventor Sanekata, Yuuhei

Abstract

This strain wave gear unit includes: a bottomed cylindrical first internal gear having internal teeth formed on a cylindrical part and a teeth-non-formed part protruding farther inward than the tooth bottom of the internal teeth in a corner area where a bottom wall part is integrally connected to the cylindrical part; a flexible cylindrical external gear having external teeth meshing with the internal teeth of the first internal gear, an opposed part opposed to the teeth-non-formed part with a gap therebetween, and an end part opposed to the bottom wall part to make contact therewith; a second internal gear arranged adjacent to the first internal gear and having internal teeth meshing with the external teeth; and a rotation member that causes the external gear to deform in an oval shape and causes the meshing position to move while partially meshing with the first internal gear and the second internal gear.

IPC Classes  ?

  • F16H 49/00 - Other gearing
  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F01L 1/356 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate
  • F16H 57/04 - Features relating to lubrication or cooling
  • F01L 1/352 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
  • F01L 1/02 - Valve drive

66.

Intake manifold and outboard motor

      
Application Number 17383386
Grant Number 11635050
Status In Force
Filing Date 2021-07-22
First Publication Date 2022-03-31
Grant Date 2023-04-25
Owner MIKUNI CORPORATION (Japan)
Inventor Oosawa, Hirobumi

Abstract

An intake manifold which can ensure a pressure resistance strength, a mechanical strength, and the like and also reduce a passage resistance and an outboard motor which can be made smaller and thinner in a width direction. A resinous intake manifold made of a resin and configured to be applied to an engine of an outboard motor includes: a surge tank which forms a flat contour and includes an intake inlet; and a plurality of branch pipes which defines intake passages communicating with an internal space of the surge tank, wherein a contour wall of the surge tank includes a plurality of ridge portions which protrudes toward the internal space and is oriented toward the intake passage side.

IPC Classes  ?

  • F02M 35/10 - Air intakesInduction systems
  • F02B 61/04 - Adaptations of engines for driving vehicles or for driving propellersCombinations of engines with gearing for driving propellers
  • F02M 35/104 - Intake manifolds

67.

Fuel supply device of engine

      
Application Number 17409117
Grant Number 11352990
Status In Force
Filing Date 2021-08-23
First Publication Date 2022-03-03
Grant Date 2022-06-07
Owner MIKUNI CORPORATION (Japan)
Inventor Ehara, Ryouji

Abstract

A fuel supply device of an engine includes a primary pump suctioning fuel to discharge the fuel to a first pipeline, a secondary pump connected in series to the primary pump via the first pipeline, and suctioning the fuel from the primary pump to supply the fuel through a second pipeline to an engine side, a tank storing the fuel and accommodating the secondary pump, an outflow part causing part of the fuel flowing from the first pipeline through the secondary pump to the second pipeline in the tank to flow outward, a third pipeline returning, to a suction side of the primary pump, gas-liquid mixed fuel generated by vaporizing the fuel flowing out from the outflow part, and a preloading part in one of portions of a circulation path formed between the primary pump and the tank by the first pipeline and the third pipeline and preloading the fuel.

IPC Classes  ?

  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/18 - Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
  • F02M 37/02 - Feeding by means of suction apparatus, e.g. by air flow through carburettors

68.

Rotary-type valve device

      
Application Number 17343780
Grant Number 11885421
Status In Force
Filing Date 2021-06-10
First Publication Date 2022-02-03
Grant Date 2024-01-30
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Tochigi, Yasuhiro
  • Ishiguchi, Shoichi

Abstract

A rotary-type valve device includes: a tubular valve having an inner passage and opening parts opened in an outer circumferential wall from the inner passage toward an outward side in a radial direction; a housing accommodating the valve and turnably supports the valve; a tubular passage member assembled in the housing such that the passage member abuts on the outer circumferential wall of the valve and defining a radial-direction passage; and a biasing spring biasing the passage member toward the outer circumferential wall The passage member includes an abutting member abutting on the outer circumferential wall, and an intervening member having an annular pressing part intervening between the abutting member and the biasing spring and partially pressurizing the abutting member. The abutting member includes an annular sealing surface aligned with the annular pressing part in a biasing direction of the biasing spring.

IPC Classes  ?

  • F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
  • F16K 11/076 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
  • F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
  • F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces

69.

Rotary-type valve device

      
Application Number 17344985
Grant Number 11971116
Status In Force
Filing Date 2021-06-11
First Publication Date 2022-02-03
Grant Date 2024-04-30
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Tochigi, Yasuhiro
  • Ishiguchi, Shoichi

Abstract

A rotary-type valve device is provided, and includes: a tubular valve having an inner passage Ip and opening parts opened in an outer circumferential wall and rotating about a predetermined axial line a shaft rotating integrally with the valve, a housing accommodating the valve, supporting the shaft to be able to turn, and defining a communication port causing the inner passage to communicate with outside; a passage member assembled in the housing such that that the passage member abuts on an outer circumferential wall of the valve and defining a radial-direction passage. The valve includes a recessed part in the axial line direction and surrounding one end part of the shaft. The housing includes a tube part inserted into the recessed part and supporting the one end part and a support hole supporting the other end part of the shaft.

IPC Classes  ?

  • F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
  • F01P 7/14 - Controlling of coolant flow the coolant being liquid
  • F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks

70.

ENGINE INTAKE DEVICE

      
Application Number JP2020027724
Publication Number 2022/014021
Status In Force
Filing Date 2020-07-16
Publication Date 2022-01-20
Owner MIKUNI CORPORATION (Japan)
Inventor Hamasaki, Daisuke

Abstract

An intake device (2) of an engine (1) comprises: a throttle body (3) in which a valve 9 is openably/closably supported in a throttle bore (5a, 5b, 6a, 6b) by a throttle shaft (8), and one end (3a) of which is connected to an intake pipe (1a) of the engine (1); an air cleaner box (4) which is connected to the other end (3b) of the throttle bore (5a, 5b, 6a, 6b), which expands in a lateral direction orthogonal to the axis (Cth) of the throttle shaft (8), and which has an engine facing surface (4a); an injector (22) which is fixed to one side of the throttle body (3) orthogonal to the axis (Cth); a gear case (13) which houses a gear train, one part (13a) of which protrudes toward the other side orthogonal to the axis (Cth) of the throttle shaft (8), and in which a first and second fixing surface (14, 15) are formed; a feed connector (19) which is fixed to the first fixing surface (14); and a motor (16) which is fixed to the second fixing surface (15) and an output shaft (16a) of which transmits driving power to the throttle shaft (8) via the gear train. In the direction of the axis (Cb) of the throttle bore, the feed connector (19) is disposed more toward the engine (1) side than is the other end (3b) of the throttle body (3).

IPC Classes  ?

  • F02M 35/04 - Air cleaners specially arranged with respect to engineMounting thereon
  • F02M 35/104 - Intake manifolds
  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

71.

Accelerator pedal device

      
Application Number 17296979
Grant Number 11827094
Status In Force
Filing Date 2019-02-01
First Publication Date 2022-01-13
Grant Date 2023-11-28
Owner MIKUNI CORPORATION (Japan)
Inventor Nagashima, Jun

Abstract

An accelerator pedal device of the present invention includes: an accelerator pedal; a hysteresis generation mechanism that generates a hysteresis in pedal effort during a depression operation and a return operation of the accelerator pedal; a reaction force addition mechanism that adds a reaction force in a direction to push back the accelerator pedal; and a control unit that controls the drive of the reaction force addition mechanism in a manner that, with a predetermined target opening degree at which the accelerator pedal is depressed as a boundary, a ratio of change in the pedal effort in an opening degree range above the target opening degree becomes relatively larger than a ratio of change in pedal effort in an opening degree range below the target opening degree.

IPC Classes  ?

  • B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
  • G05G 1/38 - Controlling members actuated by foot comprising means to continuously detect pedal position
  • G05G 1/44 - Controlling members actuated by foot pivoting
  • G05G 5/03 - Means for enhancing the operator's awareness of the arrival of the controlling member at a command or datum positionProviding feel, e.g. means for creating a counterforce

72.

Valve device

      
Application Number 17197067
Grant Number 11940048
Status In Force
Filing Date 2021-03-10
First Publication Date 2021-12-23
Grant Date 2024-03-26
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ishii, Toshiaki
  • Koyama, Makoto
  • Takayama, Daisuke

Abstract

A valve device includes a body that defines a passage through which a fluid flows, a shaft that is movably supported with respect to the body and defines an axis, a valve element that is fixed to the shaft to open and close the passage; and a cylindrical bearing bush that movably supports the shaft with respect to the body, in which the bearing bush includes a mixed region in which a metal core material and expanded graphite are mixed with each other, and a first expanded graphite region made of only the expanded graphite such that the metal core material is not exposed in an inner circumferential side region in contact with an outer circumferential surface of the shaft.

IPC Classes  ?

  • F16J 15/10 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
  • F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
  • F16J 15/54 - Other sealings for rotating shafts

73.

Valve device having outer circumferential surface having communication hole and groove

      
Application Number 17188031
Grant Number 12013192
Status In Force
Filing Date 2021-03-01
First Publication Date 2021-11-04
Grant Date 2024-06-18
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Kawasaki, Takuya
  • Fujitani, Toshiaki

Abstract

A valve device 1 includes a rotational shaft 2, and a valve body 4 internally forming a space 10 and rotatable about the rotational shaft 2, the valve body 4 having an outer circumferential surface 28 where a first communication hole 36 and a bottomed groove 38 are formed, the first communication hole 36 communicating with the space 10, the bottomed groove 38 extending from the first communication hole 36 toward one side in a rotational direction of the rotational shaft 2, and the groove 38 including a first section 40 in which at least one of a depth D of the groove 38 and a width W of the groove 38 increases toward the first communication hole 36.

IPC Classes  ?

  • F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
  • F16K 3/26 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
  • F16K 11/076 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with sealing faces shaped as surfaces of solids of revolution

74.

Throttle device

      
Application Number 17202888
Grant Number 11773790
Status In Force
Filing Date 2021-03-16
First Publication Date 2021-11-04
Grant Date 2023-10-03
Owner MIKUNI CORPORATION (Japan)
Inventor Kiyono, Jun

Abstract

A throttle device 1 includes a throttle valve 2 which is disposed in an intake passage 101, and includes a first valve body 20 and a first rotatable shaft 21 for rotatably holding the first valve body 20, a bypass valve 3 which is disposed in a bypass passage 8 connected to the intake passage 101 so as to bypass the throttle valve 2, and includes a second valve body 30 and a second rotatable shaft 31 for rotatably holding the second valve body 30, a common motor 4 for applying a driving force to the throttle valve 2 and the bypass valve 3, a first gear 5 configured to be able to transmit or block the driving force of the motor 4 with respect to the first rotatable shaft 21, a second gear 6 configured to receive the driving force of the motor 4 and transmit the driving force to the second rotatable shaft 31, and a sensor 7 for detecting a rotation amount of the second rotatable shaft 31 of the bypass valve 3 or another rotatable shaft rotating in conjunction with the second rotatable shaft 31.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 9/02 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

75.

PRESSURE SENSOR

      
Application Number 17292449
Status Pending
Filing Date 2019-01-10
First Publication Date 2021-10-21
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Sato, Tomoya
  • Fukui, Katsuhiko

Abstract

A pressure sensor of the present invention comprises a cylindrical housing (10, 210); a diaphragm (30) which is fixed to the front end of the housing and exposed to a pressure medium; a pressure measuring member (70, 270) comprising a first electrode (71), a piezoelectric element (72) and a second electrode (73) laminated in sequence inside the housing; a first conductor (91, 210) in a long shape which is electrically connected to the first electrode; a second conductor (92, 290) in a long shape which is electrically connected to the second electrode; and a restricting member (100, 300) having insulation which is arranged inside the housing so as to restrict relative movement between the first conductor and the second conductor According to this configuration, it is possible to suppress or prevent variations in parasitic capacitance so as to suppress or prevent the occurrence of noise.

IPC Classes  ?

  • G01L 23/10 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquidIndicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L 9/08 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices
  • G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance

76.

Reed valve

      
Application Number 17171194
Grant Number 11378195
Status In Force
Filing Date 2021-02-09
First Publication Date 2021-10-07
Grant Date 2022-07-05
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Karino, Shingo
  • Fujitani, Toshiaki
  • Kawarai, Hiroyuki
  • Oyama, Mitsukuni

Abstract

A reed valve 1 includes: a valve body 4; a valve seat 6 having a valve hole 3 for passage of a fluid J; a casing 8 accommodating the valve body 4; and a reed 10 including an arm part 18 having a first end portion 22 connected to the casing 8, and a valve body support part 20 connected to a second end portion 24 of the arm part 18 and supporting the valve body 4 so that the valve hole 3 can be opened and closed. When a first direction D1 is a flow direction of the fluid J in the valve hole 3, and a first surface 21 is a surface facing downstream in the first direction D1 among an inner surface of the casing 8, the first surface 21 includes a recess 27 facing the arm part 18.

IPC Classes  ?

  • F16K 15/16 - Check valves with flexible valve members with tongue-shaped laminae
  • F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

77.

Electronically controlled throttle device for engine

      
Application Number 17263057
Grant Number 11293355
Status In Force
Filing Date 2018-08-23
First Publication Date 2021-09-23
Grant Date 2022-04-05
Owner MIKUNI CORPORATION (Japan)
Inventor Komoto, Yoshinobu

Abstract

a) extending through the core metal (25).

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

78.

Exhaust valve device for vehicle

      
Application Number 17154674
Grant Number 11448142
Status In Force
Filing Date 2021-01-21
First Publication Date 2021-08-19
Grant Date 2022-09-20
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ishii, Toshiaki
  • Koyama, Makoto
  • Takayama, Daisuke
  • Tanaka, Naoki

Abstract

c of the sealing element 18 to restrict relative rotation.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 9/04 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
  • F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
  • F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves

79.

Exhaust valve device for vehicle

      
Application Number 17154691
Grant Number 11105274
Status In Force
Filing Date 2021-01-21
First Publication Date 2021-08-19
Grant Date 2021-08-31
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ishii, Toshiaki
  • Koyama, Makoto
  • Takayama, Daisuke
  • Tanaka, Naoki

Abstract

b on an outer circumferential side with formation of the diameter enlarged portions 25 at the fully closed position.

IPC Classes  ?

  • F02D 9/08 - Throttle valves specially adapted thereforArrangements of such valves in conduits
  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps

80.

INTAKE MANIFOLD

      
Application Number JP2020047902
Publication Number 2021/145167
Status In Force
Filing Date 2020-12-22
Publication Date 2021-07-22
Owner MIKUNI CORPORATION (Japan)
Inventor Hayashi Takayuki

Abstract

122) having an expanded welding width.

IPC Classes  ?

  • B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
  • F02M 35/104 - Intake manifolds

81.

Detection device

      
Application Number 17058642
Grant Number 11955869
Status In Force
Filing Date 2018-07-13
First Publication Date 2021-07-08
Grant Date 2024-04-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Tsuji, Ichiro
  • Hiei, Masaki

Abstract

A detection device of the present invention is provided with: a housing; a circuit substrate disposed in the housing; a sensor which is electrically connected to the circuit substrate and detects information of an object to be measured; a connector terminal which is formed integrally with the circuit substrate and electrically connected to an external terminal; and a tubular connector which is formed integrally with the housing, surrounds a periphery of the connector terminal, and is fitted in the external connector. Through this configuration, the reduction in the number of components, the reduction in cost and weight, the simplification of structure, and other effects can be achieved.

IPC Classes  ?

  • H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
  • H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
  • H05K 1/11 - Printed elements for providing electric connections to or between printed circuits

82.

Throttle device

      
Application Number 16951151
Grant Number 11149657
Status In Force
Filing Date 2020-11-18
First Publication Date 2021-06-10
Grant Date 2021-10-19
Owner MIKUNI CORPORATION (Japan)
Inventor Tanaka, Isamu

Abstract

Provided is a throttle device including a total of two throttle units in two cylinders in an engine, each of the throttle units having a throttle shaft, throttle valves, and a motor driving and rotating the throttle shaft, in which a return spring provided in a first throttle unit and a return spring provided in a second throttle unit out of the two throttle units are components of the same type and have mutually different installation forms in the throttle units such that biasing torques at the same degree of opening of the throttle valves differ from each other, thereby enabling performances of responding to a change in rotation speed to be different from each other.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 13/06 - Cutting-out cylinders
  • F02D 17/02 - Cutting-out
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
  • F02D 41/00 - Electrical control of supply of combustible mixture or its constituents

83.

Throttle device

      
Application Number 16951126
Grant Number 11143117
Status In Force
Filing Date 2020-11-18
First Publication Date 2021-06-10
Grant Date 2021-10-12
Owner MIKUNI CORPORATION (Japan)
Inventor Tanaka, Isamu

Abstract

Provided is a throttle device including a total of two throttle units in an engine for each two cylinders, each of the throttle units having a unit body having intake air passages corresponding to the four cylinders of the engine, a throttle shaft rotatably supported by the unit body, throttle valves secured to the throttle shaft to open and close the intake air passages for the cylinders, and a motor driving and rotating the throttle shaft, in which a first motor provided in a first throttle unit and a second motor provided in a second throttle unit out of the two throttle units have mutually different responsivities to a change in rotation speed.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
  • F02D 13/06 - Cutting-out cylinders
  • F02D 17/02 - Cutting-out

84.

Throttle device

      
Application Number 16951146
Grant Number 11162434
Status In Force
Filing Date 2020-11-18
First Publication Date 2021-06-10
Grant Date 2021-11-02
Owner MIKUNI COPORATION (Japan)
Inventor Tanaka, Isamu

Abstract

Provided is a throttle device including a total of two throttle units in each two cylinders in an engine 1, each of the throttle units having a unit body having intake air passages corresponding to four cylinders of the engine, a throttle shaft rotatably supported by the unit body, throttle valves secured to the throttle shaft to open and close the intake air passages for the cylinders, a motor, and a deceleration mechanism decelerating rotation of a drive shaft of the motor and transmitting the decelerated rotation to the throttle shaft, in which a deceleration ratio of the deceleration mechanism provided in a first throttle unit and a deceleration ratio of the deceleration mechanism provided in a second throttle unit out of the two throttle units are different from each other.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 13/06 - Cutting-out cylinders
  • F02D 17/02 - Cutting-out
  • F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

85.

ELECTRIC PARKING LOCK DEVICE

      
Application Number JP2019045287
Publication Number 2021/100124
Status In Force
Filing Date 2019-11-19
Publication Date 2021-05-27
Owner MIKUNI CORPORATION (Japan)
Inventor Kanazawa, Tomihiro

Abstract

Provided is an electric parking lock device 1 incorporated in a vehicle 2 which is an electric vehicle, the electric parking lock device comprising: an electric motor 15 that drives a lock lever 12 which meshes with a parking gear 11 of the vehicle 2; an inverter 20 that operates the electric motor 15 by means of power input via a power supply line 8 from a power unit 7 which is installed in the vehicle 2; a rotor angle sensor 24 that detects a rotation angle of a rotor 23 of the electric motor 15; and a control unit 21 that controls, on the basis of a movement position of the lock lever 12 calculated from the rotation angle of the rotor 23 which was detected by the rotor angle sensor 24, the driving of the electric motor 15 via the inverter 20 so that the lock lever 12 moves toward a lock position. When moving the lock lever 12 toward the lock position, the control unit 21 brakes the electric motor 15 by applying a short brake in a braking range before the lock position.

IPC Classes  ?

86.

Electromagnetic switching valve

      
Application Number 17030387
Grant Number 11391387
Status In Force
Filing Date 2020-09-24
First Publication Date 2021-05-06
Grant Date 2022-07-19
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ogasawara, Toshiki
  • Ueda, Masashi

Abstract

An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on a predetermined axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator exerting magnetomotive force on the plunger; and a tubular transmission member, disposed on the axis to be interposed between the plunger and the spool and transmit driving force. The stator includes an insertion hole through which the transmission member is inserted. The transmission member includes a regulated part regulated not to deviate from a range allowing an upper end of the transmission member to be inserted into the insertion hole of the stator when the transmission member is dropped and assembled into the sleeve from a vertical direction for a lower end of the transmission member to abut against the spool integrated into the sleeve.

IPC Classes  ?

  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

87.

Electromagnetic switching valve

      
Application Number 17030393
Grant Number 11221087
Status In Force
Filing Date 2020-09-24
First Publication Date 2021-05-06
Grant Date 2022-01-11
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ogasawara, Toshiki
  • Ueda, Masashi
  • Yonemura, Kazuya
  • Takasaki, Hitoshi
  • Dakiishi, Ryosuke

Abstract

An electromagnetic switching valve includes: a sleeve; a spool; an electromagnetic actuator, including a plunger having a through passage and a stator exerting a magnetomotive force on the plunger; and a transmission member of a tubular shape, interposed between the plunger and the spool and transmitting a driving force. The stator includes an insertion hole through which the transmission member is inserted. The transmission member includes: a facing wall facing the through passage; a first internal passage formed closer to the plunger than the facing wall and communicating with the through passage; a first opening formed closer to the plunger than the insertion hole and opening the first internal passage in a radial direction; second internal passages formed closer to the spool than the facing wall; and second openings formed closer to the spool than the insertion hole and opening the second internal passages in the radial direction.

IPC Classes  ?

  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

88.

Electromagnetic switching valve

      
Application Number 17030390
Grant Number 11408532
Status In Force
Filing Date 2020-09-24
First Publication Date 2021-05-06
Grant Date 2022-08-09
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Ogasawara, Toshiki
  • Ueda, Masashi

Abstract

An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on an axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator; a transmission member interposed between the plunger and the spool; and an energizing spring, energizing the spool toward the plunger. The transmission member includes a first abutting part of a convex shape tiltably abutting against a receiving recess of the plunger; a second abutting part of a concave shape abutting against a convex end of the spool; and an outer peripheral wall that, in a state of being deviated from the axis and inclined, regulates the inclination by contacting an inner peripheral surface of the sleeve or the stator.

IPC Classes  ?

  • F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear

89.

THROTTLE DEVICE FOR ENGINE

      
Application Number JP2019033121
Publication Number 2021/038640
Status In Force
Filing Date 2019-08-23
Publication Date 2021-03-04
Owner MIKUNI CORPORATION (Japan)
Inventor Komoto, Yoshinobu

Abstract

A throttle device (1) for an engine comprises: a throttle valve (5) that is supported by a throttle shaft (4) inside a throttle bore (2a, 3a) of a valve body (2, 3) and driven so as to open and close; and a throttle sensor (11) in which a distal end surface (13b) of a holder (13) is linked to one end of the throttle shaft (4), and a substrate (16), to which a magnetic excitation conductor (14) and a signal detection conductor (15) are provided, is positioned opposing an excitation conductor (12) provided to the distal end surface of the holder (13). In the holder (13), the excitation conductor (12) and a metal embedded threaded member (21) are integrally molded from a synthetic resin material so that the excitation conductor (12) is exposed in the distal end surface, and so that a holder-side threaded part (21b) of the embedded threaded member (21) and a holder-side contact surface (21c) that encloses the holder-side threaded part (21b) are exposed in a proximal end surface (13a). A shaft-side threaded part (23) that threads with the holder-side threaded part (21b) of the embedded threaded member (21) and a shaft-side contact surface (24) that encloses the shaft-side threaded part (23) are formed in one end (4a) of the throttle shaft (4).

IPC Classes  ?

  • F02D 9/00 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits

90.

ELECTRONICALLY CONTROLLED THROTTLE DEVICE FOR ENGINE

      
Application Number JP2019033122
Publication Number 2021/038641
Status In Force
Filing Date 2019-08-23
Publication Date 2021-03-04
Owner MIKUNI CORPORATION (Japan)
Inventor Hamasaki, Daisuke

Abstract

An electronically controlled throttle device (1) is provided with one throttle shaft (5) which penetrates through throttle bores (2a, 2b, 3a, 3b) of first and second valve bodies (2, 3), throttle valves (7) which are supported in the throttle bores (2a, 2b, 3a, 3b) by the throttle shaft (5), a driven gear (9) which is fixed onto the throttle shaft (5) between the first and second valve bodies (2, 3), a return spring (19) which is disposed between one side surface of the driven gear (9) and the first valve body (2), and which urges the throttle shaft (5) together with the driven gear (9) in a prescribed direction about the throttle shaft (5), a motor (17) which rotates the driven gear (9) against the return spring (10) to drive the throttle valves (7) to open and close by way of the throttle shaft (5), and a throttle sensor (21) which detects the angle of rotation of the throttle shaft (5), wherein the throttle sensor (21) is provided with: an excitation conductor (23) provided on another side surface of the driven gear (9); and a base plate (28) which is disposed between said other surface of the driven gear (9) and the second valve body (3), and which includes a magnetic excitation conductor (29) that faces the excitation conductor (23), and a signal detection conductor (30).

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 9/02 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

91.

ENGINE THROTTLE DEVICE

      
Application Number JP2019033123
Publication Number 2021/038642
Status In Force
Filing Date 2019-08-23
Publication Date 2021-03-04
Owner MIKUNI CORPORATION (Japan)
Inventor Komoto, Yoshinobu

Abstract

An engine throttle device (1) that is provided with a throttle valve (5) which is supported by means of a throttle shaft (4) inside a throttle bore (2a, 3a) of a valve body (2, 3) and which is driven to open and close, and a throttle sensor (11) including an excitation conductor provided at one end of the throttle shaft (4), and a board (16) which is provided with a magnetic excitation conductor (14) and a signal detection conductor (15) and which faces the excitation conductor, is provided with: an excitation conductor unit (12) which comprises an excitation conductor portion (12a) functioning as the excitation conductor, a sensor-side screw portion (12d) provided on the axis of the excitation conductor portion (12a), and a sensor-side contacting surface (12e) enclosing the sensor-side screw portion (12d), and which is formed integrally from a metal material; a shaft-side screw portion (17) which is formed at one end (4a) of the throttle shaft (4), and which screws together with the sensor-side screw portion (12d); and a shaft-side contacting surface (18) which is formed at said one end (4a) in such a way as to enclose the shaft-side screw portion (17), and which comes into contact with the sensor-side contacting surface (12e) when the shaft-side screw portion (17) has been screwed together with the sensor-side screw portion (12d).

IPC Classes  ?

  • F02D 9/00 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
  • F02D 35/00 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for
  • G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes

92.

ENGINE COOLING DEVICE

      
Application Number JP2019033823
Publication Number 2021/038776
Status In Force
Filing Date 2019-08-29
Publication Date 2021-03-04
Owner MIKUNI CORPORATION (Japan)
Inventor Sugawara, Hideyuki

Abstract

The present invention is provided with: a flow rate adjustment unit (12) that adjusts the flow rate of a coolant water circulating between an engine (1) and a radiator (9); a water temperature detection unit (17) that detects the temperature of the coolant water; a water temperature detection unit (21) that calculates a target water temperature for the coolant water; a deviation calculation unit (22) that calculates a water temperature deviation on the basis of the water temperature and the target water temperature; a target aperture calculation unit that, on the basis of the water temperature deviation, calculates a target aperture for the flow rate adjustment unit (12) in order to achieve the target water temperature; an opening/closing direction determination unit (25) that determines an opening/closing direction for the flow rate adjustment unit (12) on the basis of the state of change of the target aperture; a control speed calculation unit (26) that calculates a control speed for the flow rate adjustment unit on the basis of the water temperature deviation and calculates a control speed that is higher if the opening/closing direction of the flow rate adjustment unit (12) is on the closing side than if the opening/closing direction is on the opening side; and a valve control unit (27) that controls the aperture of the flow rate adjustment unit (12) on the basis of the target aperture and the control speed.

IPC Classes  ?

  • F01P 7/16 - Controlling of coolant flow the coolant being liquid by thermostatic control

93.

Oil passage switching valve and valve timing changing apparatus

      
Application Number 16989842
Grant Number 11692463
Status In Force
Filing Date 2020-08-10
First Publication Date 2021-03-04
Grant Date 2023-07-04
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Oikawa, Chikara
  • Horiuchi, Kairi

Abstract

An oil passage switching valve suitable for a valve timing changing apparatus includes: a valve body, opening or closing an oil passage of operating oil; an urging spring, urging to position the valve body to a position corresponding to the retard position in a pause state; and a switching element, positioning the valve body to a position corresponding to the retard position when a state quantity of the operating oil is in a first range, and switching a position of the valve body in response to the state quantity (pressure or temperature) of the operating oil while resisting an urging force of the urging spring to position the valve body to a position corresponding to the advance position when the state quantity of the operating oil is in a second range greater than the first range.

IPC Classes  ?

  • F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
  • F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
  • F01L 1/047 - Camshafts

94.

On-vehicle brushless motor device and method of manufacturing the same

      
Application Number 16893920
Grant Number 11569702
Status In Force
Filing Date 2020-06-05
First Publication Date 2021-01-14
Grant Date 2023-01-31
Owner MIKUNI CORPORATION (Japan)
Inventor Kobayashi, Tadashi

Abstract

To provide an on-vehicle brushless motor device capable of being downsized with respect to an axial direction of a rotor and a method of manufacturing the same. The on-vehicle brushless motor device 1 includes a brushless motor 10 and an electronic substrate 30. The brushless motor 10 includes a rotor 12 and a stator 16 including a plurality of coils 18 arranged around the rotor 12. The electronic substrate 30 includes a through hole 34 penetrating in the axial direction X of the rotor 12 and includes a substrate body 32 arranged along a plane P intersecting the axial direction X on the side opposite to the output shaft of the brushless motor 10, and a terminal 40 fixed on the surface of the substrate body 32 on the side opposite to the rotor 12. A coil wire 20 of the coil 18 is inserted into the through hole 34 and is welded to the terminal 40 on the opposite side of the rotor 12 with respect to the substrate body 32.

IPC Classes  ?

  • H02K 3/52 - Fastening salient pole windings or connections thereto
  • H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles

95.

On-vehicle brushless motor device and method of manufacturing the same

      
Application Number 16893847
Grant Number 11527935
Status In Force
Filing Date 2020-06-05
First Publication Date 2021-01-14
Grant Date 2022-12-13
Owner MIKUNI CORPORATION (Japan)
Inventor Kobayashi, Tadashi

Abstract

To provide an on-vehicle brushless motor device capable of being downsized with respect to an axial direction of a rotor and a method of manufacturing the same. The on-vehicle brushless motor device 1 includes a brushless motor 10 and an electronic substrate 30. The brushless motor 10 includes a rotor 12 and a stator 16 including a plurality of coils 18 arranged around the rotor 12. The electronic substrate 30 is arranged on a side opposite to an output side of the brushless motor 10 along a plane P intersecting an axial direction X. The on-vehicle brushless motor device 1 further includes a soldering portion 40 that connects a coil wire 20 of the coil 18 and the electronic substrate 30.

IPC Classes  ?

  • H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
  • H02K 3/52 - Fastening salient pole windings or connections thereto
  • H01R 4/02 - Soldered or welded connections
  • H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines

96.

VALVE TIMING CHANGER

      
Application Number JP2019027110
Publication Number 2021/005704
Status In Force
Filing Date 2019-07-09
Publication Date 2021-01-14
Owner MIKUNI CORPORATION (Japan)
Inventor Murasaka, Riki

Abstract

A valve timing changer 2 is provided with: a vane rotor 4; a housing 6 that accommodates the vane rotor; a spring 8 that urges the vane rotor in a circumferential direction of the vane rotor with respect to the housing with one end 8b contacting the housing and the other end 8c contacting the vane rotor; a first protrusion part 32 that protrudes from an end surface 6a on a first direction side in an axial direction of the vane rotor in the housing and is urged by the spring when the one end of the spring contacts the first protrusion part 32; and a coming-off prevention part 34 that is provided on the side closer to the first direction side than the one end of the spring and extends from the first protrusion part so as to restrict movement of the one end of the spring in a first direction. The first protrusion part and the coming-off prevention part are integrally formed with the housing.

IPC Classes  ?

  • F01L 1/356 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate

97.

THROTTLE DEVICE

      
Application Number JP2019023666
Publication Number 2020/250422
Status In Force
Filing Date 2019-06-14
Publication Date 2020-12-17
Owner MIKUNI CORPORATION (Japan)
Inventor Kiyono, Jun

Abstract

A throttle device comprises: a first power transmission mechanism 12 for transmitting the power of a first motor 8 to a throttle shaft of a first throttle valve 6a on one end side and a throttle shaft of a second throttle valve 6b on the other end side; and a second power transmission mechanism 14 for transmitting power of a second motor 10 to at least one throttle shaft of other throttle valves 6c and 6d, wherein a first throttle opening degree sensor 16 for detecting the opening degree of the first throttle valve and the opening degree of the second throttle valve and/or a second throttle opening degree sensor 18 for detecting the opening degree of at least one throttle valve is arranged at a position shifted from a row 4R of throttle bodies arranged side by side along a first direction to a direction intersecting the first direction.

IPC Classes  ?

  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

98.

SENSOR FAILURE DETECTION DEVICE, SENSOR FAILURE DETECTION METHOD, AND PROGRAM

      
Application Number JP2019049775
Publication Number 2020/250466
Status In Force
Filing Date 2019-12-19
Publication Date 2020-12-17
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Goto Takashi
  • Kawagoe Jun
  • Yashima Kan
  • Sato Shisei

Abstract

The present invention makes it possible to use a simple configuration to detect a sensor failure and identify the mode of the failure. This sensor failure detection device receives a sensor signal via a transmission line 148 over which the signal is transmitted. The sensor failure detection device comprises: a starting unit 210 for outputting a control signal for starting a failure detection operation, a voltage supply unit for supplying a prescribed voltage to a first position (A) on the transmission line 148 on the basis of the output control signal, and a detection unit 220 for detecting the occurrence of a failure on the basis of the voltage at the first position (A) or a second position (B). The detection unit 220 includes a failure mode identifying unit 222 for identifying the mode of the failure that has occurred.

IPC Classes  ?

  • G01R 31/50 - Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
  • F02D 45/00 - Electrical control not provided for in groups

99.

ACCELERATOR PEDAL DEVICE

      
Application Number JP2020008561
Publication Number 2020/250504
Status In Force
Filing Date 2020-02-29
Publication Date 2020-12-17
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Nagashima Jun
  • Miyazaki Satoshi
  • Urano Takahiro

Abstract

An accelerator pedal device according to the present invention is provided with: a pedal arm (30) operatively associated with a stepping force on an accelerator pedal; a housing (10) for supporting the pedal arm such that the pedal arm is swivelable about an axial line (S); a return spring (40) that applies a biasing force for returning the pedal arm to a rest position; a hysteresis generating mechanism (50) for generating hysteresis in stepping forces in the operation of stepping on the accelerator pedal and the operation of returning the accelerator pedal; and a reaction-force adding mechanism including a reaction force lever (70) that applies a reaction force to the pedal arm in order to add a reaction force in a direction in which the accelerator pedal is pushed back and a drive source (60) for rotationally driving the reaction force lever. The reaction force lever includes: a columnar support shaft (72); and a contact unit (73) that is supported on the support shaft so as to come into rolling contact with the support shaft and the pedal arm.

IPC Classes  ?

  • B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements

100.

ACCELERATOR PEDAL DEVICE

      
Application Number JP2020008562
Publication Number 2020/250505
Status In Force
Filing Date 2020-02-29
Publication Date 2020-12-17
Owner MIKUNI CORPORATION (Japan)
Inventor
  • Nagashima Jun
  • Miyazaki Satoshi
  • Urano Takahiro

Abstract

An accelerator pedal device according to the present invention is provided with: a pedal arm (30) having an accelerator pedal; a resin housing (10) for supporting the pedal arm such that the pedal arm is swivelable about a prescribed axial line (S) between a rest position and a maximum stepping position; and a return spring (40) that applies a biasing force for returning the pedal arm to the rest position. The housing includes: a boss section (11i) through which a bolt (B) for fixing the housing to a vehicle body is made to pass; and a full open stopper (11n) for specifying the maximum stepping position in the vicinity of the boss section.

IPC Classes  ?

  • B60K 26/02 - Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
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