Coavis

Republic of Korea

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IPC Class
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven 15
F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir 13
F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines 9
F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps 7
G01F 23/296 - Acoustic waves 7
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NICE Class
07 - Machines and machine tools 3
12 - Land, air and water vehicles; parts of land vehicles 3
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Status
Pending 10
Registered / In Force 65

1.

ELECTRIC WATER PUMP

      
Application Number 18760346
Status Pending
Filing Date 2024-07-01
First Publication Date 2025-01-09
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Lee, Woo Keun

Abstract

The present invention provides an electric water pump in which a plurality of inlets and outlets for the distribution of fluid are provided in one housing, and the fluid is pumped into each space by an rotational operation of one impeller in a state where a space is partitioned for each inlet and outlet through which the fluid is distributed, thereby distributing the fluid through multiple paths with one water pump and reducing costs and weight through structure simplification.

IPC Classes  ?

  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 29/043 - Shafts
  • F04D 29/44 - Fluid-guiding means, e.g. diffusers
  • F04D 29/58 - Cooling; Heating; Diminishing heat transfer

2.

FLUID CIRCULATING APPARATUS

      
Application Number 18749956
Status Pending
Filing Date 2024-06-21
First Publication Date 2024-12-26
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Lee, Woo Keun

Abstract

Disclosed is a fluid circulating apparatus in which a reservoir, a valve part, and a pump part are integrated with one another, and the valve part and the pump part are disposed in the reservoir to thus achieve a compact structure, thereby achieving a reduced overall size and stabilizing a fluid circulation when pumping a fluid through a plurality of flow paths.

IPC Classes  ?

  • F04C 2/16 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
  • F04C 11/00 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations

3.

LASER WELDING STRUCTURE FOR THERMOSETTING RESIN INCLUDING GLASS FIBER

      
Application Number 18675265
Status Pending
Filing Date 2024-05-28
First Publication Date 2024-12-05
Owner COAVIS (Republic of Korea)
Inventor
  • Hong, Yonghwa
  • Jung, Hyunduck

Abstract

Provided is a laser welding structure which may couple parts to each other by using a laser welding, and more particularly, a laser welding structure enabling laser welding of thermosetting resin including a glass fiber, the laser welding structure for the thermosetting resin including the glass fiber according to the present disclosure, and the method using the same, configured as described above, may provide the improved welding structure by coupling the parts made of the glass fiber-reinforced PPS material to each other by the laser welding.

IPC Classes  ?

  • B32B 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
  • B29C 65/16 - Laser beam
  • B29K 81/00 - Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
  • B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
  • B29K 309/08 - Glass
  • B32B 3/30 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups

4.

RESIN COMPOSITION FOR MOLDING, AND METHOD FOR MANUFACTURING MOLDED ARTICLE USING THE SAME

      
Application Number 18590018
Status Pending
Filing Date 2024-02-28
First Publication Date 2024-11-21
Owner
  • HYUNDAI MOTOR COMPANY (Republic of Korea)
  • KIA CORPORATION (Republic of Korea)
  • HYUNDAI WIA CORPORATION (Republic of Korea)
  • COAVIS (Republic of Korea)
Inventor
  • Park, Hyeong Won
  • Kwon, Soon Beom
  • Choi, Seung Hun
  • Oh, Seo Young
  • Chung, Min Gyun
  • Jang, Seung Ik
  • Kim, Joo Sung
  • Lee, Jong Bok
  • Youn, Tae Woong
  • Lee, Keon Sik
  • Kim, Hyung Min

Abstract

A resin composition for molding includes a polyarylene thioether resin having a constant α of 0.8 or greater determined by the Mark-Houwink equation represented by Equation 1: η=K×Mα. In Equation 1, η is the intrinsic viscosity, M is the molecular weight, and K and α are constants.

IPC Classes  ?

5.

ELECTRONIC OIL PUMP

      
Application Number 18605693
Status Pending
Filing Date 2024-03-14
First Publication Date 2024-10-03
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Lee, Wookeun
  • Lee, Hyukjin

Abstract

Provided is an electronic oil pump for circulating oil by driving an electric motor, and more particularly, an electronic oil pump which may ensure rotational stability of a gerotor and minimize a pumping loss by cooling the electric motor by using pumped oil.

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

6.

ELECTRONIC OIL PUMP

      
Application Number 18604051
Status Pending
Filing Date 2024-03-13
First Publication Date 2024-09-19
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Lee, Wookeun

Abstract

Provided is an electronic oil pump which may circulate oil by driving an electric motor, and more particularly, an electronic oil pump which may vary a cross-sectional area of a pumping passage based on an oil viscosity, and include a cooling passage for cooling a motor.

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
  • F01M 1/02 - Pressure lubrication using lubricating pumps

7.

Integrated cooling module

      
Application Number 18340617
Grant Number 12140069
Status In Force
Filing Date 2023-06-23
First Publication Date 2024-08-08
Grant Date 2024-11-12
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Lee, Woo Keun
  • Lee, Hyuk Jin
  • Mo, Dong Heon
  • Hyun, Daeil

Abstract

Provided is a cooling module including a reservoir tank in which cooling water is stored, a screw pump coupled to the reservoir tank and having a cooling water inlet communicating with the reservoir tank to pump cooling water, and a direction control valve coupled to the reservoir tank, having an outlet port communicating with the reservoir tank, and having a plurality of inlet ports to change a direction of flow of cooling water according to an operation, so that efficiency corresponding to the use of a plurality of centrifugal pumps of the related art may be achieved by using a single screw pump, thereby reducing the number of parts and simplifying a package, while simplifying the configuration.

IPC Classes  ?

  • F01P 5/10 - Pumping liquid coolant; Arrangements of coolant pumps
  • B60K 1/00 - Arrangement or mounting of electrical propulsion units
  • B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
  • F01P 3/20 - Cooling circuits not specific to a single part of engine or machine
  • F01P 7/14 - Controlling of coolant flow the coolant being liquid
  • F01P 7/16 - Controlling of coolant flow the coolant being liquid by thermostatic control
  • F01P 11/02 - Liquid-coolant overflow, venting, or draining devices
  • F04C 2/16 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
  • F04C 14/10 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

8.

VALVE-INTEGRATED ELECTRIC WATER PUMP

      
Application Number 18545934
Status Pending
Filing Date 2023-12-19
First Publication Date 2024-06-20
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Lee, Woo Keun

Abstract

Provided is a valve-integrated electrical water pump in which an impeller for circulating a coolant to the outside and a valve for selectively opening and closing a plurality of ports inside an integrated housing to control a circulation of a coolant used in electric vehicles, thereby simplifying the overall structure of the pump and simplifying an internal flow path.

IPC Classes  ?

  • F04D 29/58 - Cooling; Heating; Diminishing heat transfer
  • B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
  • F04D 1/04 - Helico-centrifugal pumps

9.

ELECTRIC WATER PUMP

      
Application Number 18498165
Status Pending
Filing Date 2023-10-31
First Publication Date 2024-05-02
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Lee, Woo Keun

Abstract

Provided is an electric water pump which may have a reduced overall size by simplifying a power transfer structure between a power unit and a rotation unit, and effectively cool a stator and a rotor without any additional structure for their cooling by distributing a fluid between the power unit and the rotation unit.

IPC Classes  ?

  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps

10.

INTEGRATED COOLING MODULE HAVING RESERVOIR TANK

      
Application Number 18481161
Status Pending
Filing Date 2023-10-04
First Publication Date 2024-04-11
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Lee, Wookeun

Abstract

Provided is a cooling module in which a reservoir tank, a cooling fluid pump, and a direction change valve for pumping and circulating a cooling fluid are integrally modularized in a vehicle's cooling system, and more particularly, relates to a reservoir tank for a cooling module that stabilizes an unstable fluid introduced into a reservoir tank and transmits the fluid to a pump, thereby minimizing damage to the pump, and a cooling module including the same.

IPC Classes  ?

  • H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
  • H01M 10/613 - Cooling or keeping cold
  • H01M 10/625 - Vehicles

11.

Screw water pump with inner housing and outer housing

      
Application Number 18059361
Grant Number 11905957
Status In Force
Filing Date 2022-11-28
First Publication Date 2024-02-20
Grant Date 2024-02-20
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Lee, Wookeun
  • Hong, Yonghwa

Abstract

Provided is a water pump having improved efficiency by simplifying its structure, the water pump including: an outer housing having a shape of a container, and including an inlet part positioned at a lower end, and an outlet part positioned at a side of an upper end; an inner housing having a shape of a container, including a communication hole positioned at an upper end and communicating the inside and outside with each other, and inserted into the outer housing; a thrust key coupled to the inside of the outer housing; and a first screw and a second screw, inserted into the inner housing, having lower ends supported by the thrust key, and engaged with each other to be rotated together.

IPC Classes  ?

  • F04C 2/16 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

12.

Screw pump and integrated cooling module including the same

      
Application Number 18366283
Grant Number 12078170
Status In Force
Filing Date 2023-08-07
First Publication Date 2024-02-15
Grant Date 2024-09-03
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Lee, Wookeun
  • Mo, Dongheon

Abstract

The present disclosure relates to a cooling module in which a plurality of cooling water outlets through which cooling water is discharged are formed in an outer housing, an inner housing into which a first screw and a second screw are inserted inside the outer housing, and a communication hole formed in the inner housing communicates with a plurality of cooling water outlets, in which a cooling module or a cooling water system including a plurality cooling water outlets formed in one screw pump is simple, reduces the number of parts, and simplifies a package.

IPC Classes  ?

  • F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
  • F04C 2/16 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
  • F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 29/04 - Heating; Cooling; Heat insulation

13.

Water pump

      
Application Number 18366313
Grant Number 12012968
Status In Force
Filing Date 2023-08-07
First Publication Date 2024-02-15
Grant Date 2024-06-18
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Kim, Hyungmin
  • Lee, Wookeun
  • Mo, Dongheon

Abstract

The present disclosure relates to a water pump in which a channel is formed so that a fluid introduced through an inlet side passes through a bearing part and a channel inside the rotor accommodation part and the rotor is formed so that the fluid may circulate, so a lubricating action of a bearing rotatably coupled to the rotor is smoothed and a pressure difference between upper and lower sides of an assembly of the rotor and an impeller assembly is reduced, thereby reducing abnormal noise and vibration in the bearing part.

IPC Classes  ?

  • F04D 29/046 - Bearings
  • F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
  • F04D 29/22 - Rotors specially for centrifugal pumps
  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps

14.

Water pump and manufacturing method thereof

      
Application Number 18058670
Grant Number 11781566
Status In Force
Filing Date 2022-11-23
First Publication Date 2023-10-10
Grant Date 2023-10-10
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Joonseup
  • Pae, Wansung
  • Lee, Hyuntae
  • Lee, Wookeun
  • Hong, Yonghwa

Abstract

Provided is a water pump which may be easily manufactured and a manufacturing method thereof, the water pump including: a motor housing having a concave container shape; a lower casing including a first side wall protruding downward for a lower end of the first side wall to be in contact with an upper end of the motor housing; and an upper casing fitted to the outside of the lower casing, and including a second side wall protruding downward for a lower end of the second side wall to be in contact with the upper end of the motor housing, wherein the upper end of the motor housing, the lower end of the first side wall, and the lower end of the second side wall are simultaneously fusion-coupled with one another.

IPC Classes  ?

  • F04D 29/02 - Selection of particular materials
  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • B29C 65/16 - Laser beam

15.

IMPELLER FOR WATER PUMP

      
Application Number 18057149
Status Pending
Filing Date 2022-11-18
First Publication Date 2023-05-25
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyuntae
  • Pae, Wansung
  • Lee, Wookeun

Abstract

Provided is an impeller for a water pump which may reduce noise occurring when the impeller is rotated by using a simple configuration, the impeller including: a main plate; and a plurality of blades arranged on one surface of the main plate, and spaced apart from each other in a circumferential direction of the main plate, wherein the plurality of blades are non-equal interval types in which the blades are spaced apart from each other at intervals not equal to each other.

IPC Classes  ?

  • F04D 29/22 - Rotors specially for centrifugal pumps
  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven

16.

Pressure regulator and fuel pump module having the same

      
Application Number 18057687
Grant Number 11846259
Status In Force
Filing Date 2022-11-21
First Publication Date 2023-05-25
Grant Date 2023-12-19
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Chanheum
  • Kwon, Kusung
  • Kang, Changmo

Abstract

Provided is a pressure regulator and a fuel pump module having the same, which may be easily assembled by including fewer components, the pressure regulator including: a first housing including a guide part positioned therein and guiding movement of a valve, and an outlet part communicating with an inner space thereof and discharging a fluid; a second housing coupled to the first housing, having a valve accommodating space, including a valve seating part, and including an inlet part introducing a fluid; a valve positioned in the valve accommodating space, and moved to thus open and close a fluid flow; and an elastic member interposed between the valve and the first housing to bring the valve into close contact with the valve seating part.

IPC Classes  ?

  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F16K 17/04 - Safety valves; Equalising valves closing on insufficient pressure on one side spring-loaded

17.

Water pump

      
Application Number 17835475
Grant Number 11885346
Status In Force
Filing Date 2022-06-08
First Publication Date 2022-12-22
Grant Date 2024-01-30
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Lee, Hyun Tae
  • Kim, Joon Seup

Abstract

The present invention relates to a water pump including a lower casing in which a rotor accommodating part is formed to protrude downwardly and a lower bearing mounting part is formed at a lower end of an inner portion; an upper casing in which an inlet part introducing a fluid and an outlet part discharging the fluid are formed and an upper bearing mounting part is formed to extend from a lower end of the inlet part toward the impeller accommodating space; an impeller rotatably provided in the impeller accommodating space; and a rotor provided in the rotor accommodating space of the lower casing and coupled to the impeller. A fluid may smoothly flow toward an introduction side of the impeller, and thus, a pressure drop of the fluid and an unstable flow of the fluid may be prevented to improve performance.

IPC Classes  ?

  • F04D 29/046 - Bearings
  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
  • F04D 29/041 - Axial thrust balancing
  • F04D 29/02 - Selection of particular materials
  • F04D 29/043 - Shafts
  • F04D 13/02 - Units comprising pumps and their driving means

18.

Quick connector

      
Application Number 17651516
Grant Number 11781691
Status In Force
Filing Date 2022-02-17
First Publication Date 2022-08-18
Grant Date 2023-10-10
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Yu Mi
  • Kwon, Ku Sung

Abstract

A quick connector includes a housing having an insertion recess and a communication hole communicating with the insertion recess and formed in a direction perpendicular to the insertion recess, and a first fixing part having an arrest portion and an insertion guide protruding from the arrest portion in a direction toward an entrance of the insertion recess, wherein the arrest portion is inserted into the communication hole so that a lower end of the arrest portion is disposed in a position corresponding to the insertion recess, the first fixing part being coupled to the housing, so that the quick connector may be applied to a low-pressure side line in a fuel supply line of a vehicle, and since the quick connector has a simple structure, the quick connector may be easily manufactured and may be easily coupled and separated.

IPC Classes  ?

  • F16L 37/098 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks

19.

Fuel pump module

      
Application Number 17647158
Grant Number 11585302
Status In Force
Filing Date 2022-01-05
First Publication Date 2022-07-07
Grant Date 2023-02-21
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Jong Hyuk
  • Yoon, Ho Keun

Abstract

The present disclosure relates to a fuel pump module, and more particularly, to a fuel pump module including a flange module and a reservoir module, in which when a fuel delivery pipe for supplying filtered fuel from the reservoir module to the flange module is coupled to the reservoir module, since the fuel deliver pipe may be coupled to the reservoir module to a desired position in an axial direction and to be prevented from rotating in an axial direction, the fuel delivery pipe may be prevented from interfering with a guide rod connecting the flange module and the reservoir module in a vertical direction, thereby not only preventing the occurrence of fire, but also increasing a common use rate of the reservoir module.

IPC Classes  ?

  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M 37/44 - Filters structurally associated with pumps
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/50 - Filters arranged in or on fuel tanks

20.

Electric water pump

      
Application Number 17122207
Grant Number 11353042
Status In Force
Filing Date 2020-12-15
First Publication Date 2022-05-26
Grant Date 2022-06-07
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Pae, Wan Sung
  • Lee, Woo Keun

Abstract

Provided is an electric water pump in which a portion of a fluid discharged from the vicinity of an outer peripheral edge of an impeller flows between the impeller and a lower casing, flows between a rotor and the lower casing, flows between a shaft and the rotor along a channel formed inside the rotor, and then flows to an inlet side of the impeller such that the fluid circulates outside and inside the rotor, and thus, foreign matters contained in the fluid do not accumulate in an accommodation space between the rotor and the lower casing, and thus, efficiency and durability of a motor can be improved.

IPC Classes  ?

  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 29/043 - Shafts
  • F04D 29/22 - Rotors specially for centrifugal pumps
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
  • F04D 29/041 - Axial thrust balancing
  • F04D 29/046 - Bearings
  • F04D 29/047 - Bearings hydrodynamic
  • F04D 13/02 - Units comprising pumps and their driving means
  • F04D 29/20 - Mounting rotors on shafts
  • F04D 29/057 - Bearings hydrodynamic

21.

Sensorless control device for DC fuel pump

      
Application Number 17103147
Grant Number 11326544
Status In Force
Filing Date 2020-11-24
First Publication Date 2022-01-13
Grant Date 2022-05-10
Owner COAVIS (Republic of Korea)
Inventor
  • Jang, Young Sub
  • Yun, Suk Min

Abstract

Provided is a sensorless control device for a DC fuel pump that may be downsized as compared to a conventional control device for a DC fuel pump and may implement the same operation at a relatively low cost, and the sensorless control device for a DC fuel pump.

IPC Classes  ?

  • H02P 6/00 - Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
  • F02D 41/30 - Controlling fuel injection
  • F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
  • F02D 41/14 - Introducing closed-loop corrections
  • F02M 37/08 - Feeding by means of driven pumps electrically driven
  • H02P 25/089 - Sensorless control

22.

Motor and electric pump having the same

      
Application Number 17103276
Grant Number 11658537
Status In Force
Filing Date 2020-11-24
First Publication Date 2021-06-10
Grant Date 2023-05-23
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Yu, Gyu Sang
  • Lee, Woo Keun

Abstract

Provided are a motor and an electric pump having the same, the motor including: a stator having a center made hollow to vertically pass through its opposite surfaces; a rotor which is disposed to be spaced apart from an inner surface of the stator, and into which a drive shaft is inserted to its center; a terminal block including a frame coupled to an upper side of the stator, ribs extending radially inward from the frame, and a ring portion which is coupled to the ribs and into which an upper side of the drive shaft of the rotor is rotatably inserted; and a terminal coupled to the terminal block and electrically connected to the coil of the stator, wherein the terminal may be easily coupled to the coil of the stator included in the motor, and the stator and the rotor may be easily aligned with each other.

IPC Classes  ?

  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • H02K 3/52 - Fastening salient pole windings or connections thereto

23.

Strainer for fuel pump

      
Application Number 17022160
Grant Number 11291936
Status In Force
Filing Date 2020-09-16
First Publication Date 2021-03-25
Grant Date 2022-04-05
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Joon Seup
  • Choi, Yong Hwan
  • Kwon, Ku Sung
  • Yoon, Jong Hyuk
  • Choi, Jin Kyu
  • Kim, Jeong Sik
  • Mo, Dong Heon

Abstract

A strainer for a fuel pump according to the present invention includes: a communicating pipe including a flow path formed to communicate with a fuel inlet of the fuel pump; a filter including an internal space in which a fuel flows and coupled to the communicating pipe so that the internal space communicates with the communicating pipe; and a rib disposed in the filter and coupled to the communicating pipe, in which the filter includes a first filtering portion extending in a length direction with respect to the communicating pipe, a connecting portion extending in a width direction at an edge of the first filtering portion, and a second filtering portion extending in the length direction at the connecting portion and spaced apart from the first filtering portion in the width direction. Therefore, the strainer may have a relatively large filtering area and a small size.

IPC Classes  ?

  • B01D 35/26 - Filters with built-in pumps
  • B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups ; Auxiliary devices for filtration; Filter housing constructions
  • F02M 37/50 - Filters arranged in or on fuel tanks

24.

Motor integrated with control unit and water pump having the same

      
Application Number 17021452
Grant Number 11848588
Status In Force
Filing Date 2020-09-15
First Publication Date 2021-03-18
Grant Date 2023-12-19
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Mo, Dong Heon
  • Kim, Joon Seup

Abstract

A motor integrated with a control unit having an efficiency in cooling by allowing the heat generated by the motor to be radiated away from the motor. Heat generated from the control unit is separately radiated away from the control unit. The motor integrated with the control unit can be utilized in water pumps.

IPC Classes  ?

  • H02K 11/30 - Structural association with control circuits or drive circuits
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • 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
  • H02K 3/52 - Fastening salient pole windings or connections thereto
  • F04D 29/58 - Cooling; Heating; Diminishing heat transfer

25.

Controller integrated type fuel pump module for preventing thermal deformation of flange

      
Application Number 16929619
Grant Number 11719204
Status In Force
Filing Date 2020-07-15
First Publication Date 2021-01-21
Grant Date 2023-08-08
Owner COAVIS (Republic of Korea)
Inventor
  • Jang, Young Sub
  • Lee, Hyug Jin

Abstract

Provided are a controller integrated type fuel pump module for preventing thermal deformation of a flange and a manufacturing method thereof. An embodiment of the present invention is directed to providing a controller integrated type fuel pump module for preventing thermal deformation of a flange that minimizes heat transfer from a board to the flange through a thermal insulation effect by an air gap by improving a structure in a storage part of a controller to form the air gap between the board and the flange in the controller formed integrally with a fuel pump module, and a manufacturing method thereof.

IPC Classes  ?

  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines

26.

Water pump

      
Application Number 16816694
Grant Number 10995759
Status In Force
Filing Date 2020-03-12
First Publication Date 2020-09-24
Grant Date 2021-05-04
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Lee, Hyun Tae
  • Kim, Byeung Jin

Abstract

Provided is a water pump including a lower casing, an upper casing coupled to an upper side of the lower casing to form an impeller accommodating space therein by the coupling with the lower casing and having an inlet communicating with the impeller accommodating space and allowing a fluid to be introduced therethrough and an outlet allowing the fluid to be discharged therethrough, an impeller provided in the impeller accommodating space and including an upper plate and a lower plate arranged to be spaced apart from each other vertically and a plurality of blades arranged and coupled between the upper plate and the lower plate, and a rotor coupled to the impeller and rotated together with the impeller, wherein the upper casing has a spacing recess provided on an inner surface corresponding to an outer circumference of the upper plate of the impeller.

IPC Classes  ?

  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
  • F04D 29/046 - Bearings
  • F04D 29/043 - Shafts
  • F04D 13/02 - Units comprising pumps and their driving means
  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
  • F04D 29/02 - Selection of particular materials
  • F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
  • F04D 29/22 - Rotors specially for centrifugal pumps
  • F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps

27.

Brushless direct currency (BLDC) motor and manufacturing method thereof

      
Application Number 16711979
Grant Number 11251679
Status In Force
Filing Date 2019-12-12
First Publication Date 2020-06-18
Grant Date 2022-02-15
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Jung Kil
  • Yu, Gyu Sang
  • Mo, Dong Heon
  • Lee, Hyun Tae

Abstract

Provided is a brushless direct currency (BLDC) motor and a manufacturing method thereof, and more particularly, a brushless direct currency (BLDC) motor including a rotor rotated to drive an impeller and capable of reducing a defective rate of the motor due to a rotational imbalance by controlling a shape of a magnet portion included in the rotor, and a manufacturing method thereof.

IPC Classes  ?

  • H02K 7/04 - Balancing means
  • H02K 1/27 - Rotor cores with permanent magnets
  • H02K 15/16 - Centering rotors within the stator; Balancing rotors
  • H02K 21/16 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
  • H02K 15/03 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
  • H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans

28.

Impeller for electric water pump

      
Application Number 16653302
Grant Number 11873819
Status In Force
Filing Date 2019-10-15
First Publication Date 2020-04-16
Grant Date 2024-01-16
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Kim, Byeung Jin
  • Kim, Joon Seup

Abstract

The present invention relates to an impeller for an electric water pump capable of preventing a cavitation from occurring in the impeller according to the related art and improving a flow restriction in the impeller by changing an internal structure of the impeller in consideration of a flow of a coolant introduced into the impeller. The impeller for an electric water pump, includes: an inlet member formed in a pipe shape extending to allow a fluid to be introduced; an upper member connected to one end of the inlet member, extending to one side, and having an inner diameter increasing toward the one side; an extension member outwardly extending from one end of the upper member; and a lower impeller member coupled to an upper impeller member formed by the inlet member, the upper member, and the extension member to form a discharge space from which the fluid is discharged.

IPC Classes  ?

  • F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven

29.

Water pump including supporting structure for impeller

      
Application Number 16523982
Grant Number 11035373
Status In Force
Filing Date 2019-07-26
First Publication Date 2020-01-30
Grant Date 2021-06-15
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Lee, Hyun Tae
  • Kim, Joon Seup

Abstract

Provided is a water pump including a supporting structure for an impeller having a lower manufacturing cost and having reduced noise and vibration characteristics compared to a conventional water pump including a supporting structure for an impeller. The water pump including a supporting structure for an impeller includes: a shaft; an impeller having the shaft inserted into a center of the impeller and rotating together with the shaft to discharge an introduced fluid; a core formed on an outer circumference of the shaft; a magnetic material formed on an outer circumference of the core and forming a magnetic field rotating the shaft connected to the core and the impeller; a pump housing the shaft, impeller and core; and a supporting member installed between an end of the shaft and the pump housing to support the shaft.

IPC Classes  ?

  • F04D 29/046 - Bearings
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven

30.

COAVIS

      
Serial Number 88741334
Status Registered
Filing Date 2019-12-28
Registration Date 2023-03-14
Owner COAVIS (Republic of Korea)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

Fuel and air mixture regulators being parts of internal combustion engines; Fuel saving device for motors and engines; Fuel reducing device for engines, except for land vehicles; Liquefied fuel injectors for land vehicles; Fuel pumps for land vehicle engines; Fuel filters for transportation machinery engine; Assembly fuel filters being engine parts; Fuel pump modules for transportation machinery; Fuel system devices for transportation machinery; Emission reduction units for motors and engines, namely, EGR valves for motors and engines; Valves for pumps; Valves for non-transport machinery being machine parts; Fuel injectors for internal combustion engines; Exhaust valves being engine parts; Injection valves being engine parts; Pump control valves; Pneumatic controls for machines, motors and engines; Direct current motors; Pumps for machines, motors and engines; Pneumatic valve actuator being parts of machinery Unloading check valves for the outlets of air compressors; Electrical controllers for electric motors Caps for motor vehicle fuel tanks; Fuel tanks for transportation machinery; Brakes for motor vehicles; Electric motors for motor cars; Driving motors for land vehicles; Diesel motors for land vehicles; Mechanical power conduction device for land vehicles, namely, ignition devices for motors of land vehicles; Motors and engines for land vehicles; Braking systems for transportation machinery and parts thereof; Suspension system components for transportation machinery, namely, springs, torsion bars, dampers, sun visors, sun blinds, and sun shields; Valves for transportation machinery tires; Air pumps for cars

31.

Apparatus for measuring residual amount of fuel in fuel tank using ultrasonic sensor

      
Application Number 16237313
Grant Number 11181414
Status In Force
Filing Date 2018-12-31
First Publication Date 2019-07-04
Grant Date 2021-11-23
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Tae Hoon
  • Jung, Ji Ho
  • Lee, Hyun Tae

Abstract

Provided is an apparatus for measuring a residual amount of fuel in a fuel tank using an ultrasonic sensor that may simplify wirings, may simplify an assembly method, and may respond to contraction or expansion of the tank according to a change in temperature as compared to the conventional apparatus for measuring a residual amount of fuel in a fuel tank using an ultrasonic sensor.

IPC Classes  ?

32.

Signal processing system and signal processing method for sensors of vehicle

      
Application Number 15927060
Grant Number 10773728
Status In Force
Filing Date 2018-03-20
First Publication Date 2019-03-28
Grant Date 2020-09-15
Owner COAVIS (Republic of Korea)
Inventor
  • Jang, Young Sub
  • Sohn, In Seok

Abstract

Provided are a signal processing system and a signal processing method for sensors of a vehicle. More particularly, the signal processing system includes: a vehicle sensor unit 100 including the plurality of sensors previously provided in the vehicle and transmitting sensing information acquired through the sensors; an arithmetic and control unit 200 receiving sensing information from the vehicle sensor unit 100, and comparing and analyzing the received sensing information to discriminate only normal sensing information from the sensing information and set and transmit the normal sensing information as output information; and a display unit 300 including a plurality of displays previously provided in the vehicle, transmitting the output information received from the arithmetic and control unit 200 to the matched display of the plurality of displays, and outputting the output information through the matched display of the plurality of displays.

IPC Classes  ?

  • G01M 17/00 - Testing of vehicles
  • G06F 7/00 - Methods or arrangements for processing data by operating upon the order or content of the data handled
  • G06F 11/30 - Monitoring
  • G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
  • G07C 5/00 - Registering or indicating the working of vehicles
  • B60W 50/02 - Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
  • G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
  • G06F 16/23 - Updating

33.

Strainer and fuel pump module having the same

      
Application Number 16171829
Grant Number 10436161
Status In Force
Filing Date 2018-10-26
First Publication Date 2019-02-28
Grant Date 2019-10-08
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Jeong Sik
  • Lee, Woo Keun
  • Kim, Du Hyun
  • Lee, Eun Ju

Abstract

Provided is a strainer including: a filter paper filtering fuel and having a space part disposed therein; an inner rib disposed inside the filter paper; protruding parts protruding up and down from the inner rib to be disposed inside the filter paper; and a communicating pipe combined with the filter paper to communicate with the space part. The filter paper and the inner rib are partially folded up longitudinally. The folded portion is formed in a rounded form, and the upper and lower portions of the filter paper are formed not to contact each other at the folded portion. Widths of the protruding parts are each formed differently and distances between the protruding parts are each formed differently. The width and the distance are more narrowly formed at the portion at which the filter paper is folded than at the portion at which the filter paper is not folded.

IPC Classes  ?

  • F02M 37/14 - Feeding by means of driven pumps the pumps being combined with other apparatus
  • F02M 37/50 - Filters arranged in or on fuel tanks

34.

Electric water pump and manufacturing method for thereof

      
Application Number 16033053
Grant Number 11199191
Status In Force
Filing Date 2018-07-11
First Publication Date 2019-01-17
Grant Date 2021-12-14
Owner COAVIS (Republic of Korea)
Inventor
  • Jang, Young Sub
  • Kim, Joon Seop
  • Pae, Wan Sung

Abstract

An electric water pump of which productivity, maintainability, and use convenience may be improved by simplifying a production process through a change in a structure, and a method of manufacturing the same. The electric water pump includes: a pump housing accepting a motor therein; an acceptor having a cylindrical shape of which one side is opened and formed at one side of the pump housing; a control substrate installed in the acceptor; an external terminal formed of a conductor and penetrating through the acceptor to electrically connect the control substrate to an external power supply; and an internal terminal formed of a conductor and penetrating through the pump housing and the acceptor to electrically connect the motor and the control substrate to each other.

IPC Classes  ?

  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/58 - Cooling; Heating; Diminishing heat transfer
  • F04D 29/62 - Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps

35.

Assembly type terminal for fuel pump and method for manufacturing fuel pump flange using the same

      
Application Number 15994214
Grant Number 10857706
Status In Force
Filing Date 2018-05-31
First Publication Date 2018-12-06
Grant Date 2020-12-08
Owner COAVIS (Republic of Korea)
Inventor
  • Lim, Chaehoon
  • Kwon, Kusung
  • Yoon, Heejin
  • Mo, Dongheon

Abstract

Provided are an assembly type terminal for a fuel pump capable of decreasing a process additionally required at the time of injection-molding a flange using a separation type terminal according to the related art and preventing a defect of a product that may occur at the time of injection-molding the flange, and a method of manufacturing a fuel pump flange using the same. The assembly type terminal for a fuel pump includes: a plurality of power supply terminals; a plurality of coupling bodies 100 and 200 coupling one or more power supply terminals to each other; and a coupling member 300 formed in the coupling bodies and coupling the plurality of coupling bodies 100 and 200 to each other, wherein the plurality of coupling bodies are spaced apart from each other and are coupled to each other by the coupling member.

IPC Classes  ?

  • B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • B29L 31/00 - Other particular articles

36.

Complementary apparatus for measuring urea water level

      
Application Number 15949669
Grant Number 10605644
Status In Force
Filing Date 2018-04-10
First Publication Date 2018-10-11
Grant Date 2020-03-31
Owner COAVIS (Republic of Korea)
Inventor
  • Mo, Dong Heon
  • Jung, Jin Hwa
  • Sohn, In Seok
  • Lee, Hyun Tae

Abstract

Provided is a complementary apparatus for measuring a level of urea water includes an ultrasonic measurement unit installed inside a urea water tank to measure a level of urea water using an ultrasonic wave, an inductance measurement unit including a winding coil wound in a vertical direction inside the urea water tank and having a winding density varied toward one side, and measuring a level of urea water using inductance measured as a current is applied to the winding coil, a temperature measurement unit installed in the urea water tank and measuring a temperature, and a controller determining whether to operate the ultrasonic measurement unit or the inductance measurement unit according to the temperature measured by the temperature measurement unit or selectively outputting a level of urea water measured by the ultrasonic measurement unit and the inductance measurement unit.

IPC Classes  ?

  • G01F 23/296 - Acoustic waves
  • G01F 23/26 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
  • G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
  • F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
  • F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus

37.

Fuel tank for vehicle

      
Application Number 15822598
Grant Number 10605645
Status In Force
Filing Date 2017-11-27
First Publication Date 2018-06-07
Grant Date 2020-03-31
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, In Gon
  • Kim, Se Jin
  • Yoon, Jong Hyuk

Abstract

Provided is a fuel tank for a vehicle in which a fuel measure bar provided in a vertical direction in a fuel storing body in which a fuel combusted in an engine is stored and capable of measuring a fuel amount using an ultrasonic wave includes a first fuel measure bar fixed to a bottom surface of the fuel storing body and a second fuel measuring bar easily coupled to the first fuel measuring bar to easily enter the fuel storing body and exit from the fuel storing body.

IPC Classes  ?

  • G01F 23/296 - Acoustic waves
  • B60K 15/03 - Fuel tanks
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
  • G01F 23/30 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats

38.

System and method for optimizing driving of ultrasonic sensor

      
Application Number 15810601
Grant Number 10634532
Status In Force
Filing Date 2017-11-13
First Publication Date 2018-05-17
Grant Date 2020-04-28
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Se Jin
  • Kim, In Gon
  • Yoon, Jong Hyuk

Abstract

Provided are a system and a method for optimizing driving of an ultrasonic sensor. The system for optimizing driving of an ultrasonic sensor includes: an ultrasonic sensor unit provided on an inner bottom surface of a fuel tank for a vehicle and obtaining a time of flight (TOF) for calculating a distance from the inner bottom surface of the fuel tank to a fuel surface; and a central processing unit calculating liquid level information of the fuel tank using the TOF transferred from the ultrasonic sensor unit and controlling a driving voltage of the ultrasonic sensor unit using the liquid level information.

IPC Classes  ?

  • G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
  • G01F 23/296 - Acoustic waves
  • G01F 1/688 - Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
  • G01F 1/708 - Measuring the time taken to traverse a fixed distance
  • G01N 9/24 - Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material

39.

Direct current (DC) motor for fuel pump for vehicle

      
Application Number 15616829
Grant Number 10020696
Status In Force
Filing Date 2017-06-07
First Publication Date 2018-04-12
Grant Date 2018-07-10
Owner COAVIS (Republic of Korea)
Inventor
  • Yu, Gyu Sang
  • Lee, Hyun Tae
  • Pae, Wan Sung

Abstract

Provided is a DC motor for a fuel pump for a vehicle. The DC motor for a fuel pump for a vehicle includes: a housing whose inside is hollow; a stator coupled to the inside of the housing and having a first permanent magnet whose N pole is disposed inwardly in a radial direction and a second permanent magnet whose S pole is disposed inwardly in a radial direction, the first permanent magnet and the second permanent magnet being spaced apart from each other to face each other; and a rotor disposed on an inside of the stator while being spaced apart from the stator, in which a first gap g1 between the first permanent magnet and the rotor is different from a second gap g2 between the second permanent magnet and the rotor, whereby a torque ripple that is a fluctuation width of a cogging torque is reduced.

IPC Classes  ?

  • H02K 1/17 - Stator cores with permanent magnets
  • F02M 59/44 - Pumps specially adapted for fuel-injection and not provided for in groups - Details, component parts, or accessories not provided for in, or of interest apart from, the apparatus of groups

40.

Fuel level sensing apparatus for fuel tank

      
Application Number 15711004
Grant Number 10794751
Status In Force
Filing Date 2017-09-21
First Publication Date 2018-03-29
Grant Date 2020-10-06
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Young Chang
  • Kim, Joon Seop

Abstract

Provided is a fuel level sensing apparatus for a fuel tank for sensing a remaining fuel level of the fuel tank through a variation in a measured resistance value depending on a position of a wiper in contact with a resistance substrate. The resistance substrate includes a first segment part and a second segment part disposed to be spaced apart from each other. A resistance setting part of the second segment part is connected to positive electrode terminals, and a connecting part of the first segment part is connected to a negative electrode terminal by a negative electrode lead. A connection point of the negative electrode lead connected to the connecting part is formed between both ends of the connecting part in a length direction. A resistance deviation in a measured resistance value depending on a change in the position of the wiper may be reduced.

IPC Classes  ?

  • G01F 23/36 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
  • G01D 5/165 - Mechanical means for transferring the output of a sensing member; Means 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 converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact and a resistive track
  • B60K 15/03 - Fuel tanks

41.

Fuel pump module for measuring height of fuel using ultrasonic wave

      
Application Number 15622817
Grant Number 10533888
Status In Force
Filing Date 2017-06-14
First Publication Date 2017-12-21
Grant Date 2020-01-14
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Jong Hyuk
  • Kim, Se Jin
  • Kim, In Gon

Abstract

Provided is a fuel pump module for measuring a height of fuel using an ultrasonic wave, and more particularly, a fuel pump module for measuring a height of fuel using an ultrasonic wave, where an ultrasonic wave sensor for measuring the height of the fuel contained in a fuel tank is integrally installed in the fuel pump module provided in the fuel tank.

IPC Classes  ?

42.

System and method for measuring liquid level of vehicle fuel tank

      
Application Number 15621933
Grant Number 10598538
Status In Force
Filing Date 2017-06-13
First Publication Date 2017-12-21
Grant Date 2020-03-24
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Se Jin
  • Kim, In Gon
  • Yoon, Jong Hyuk

Abstract

Provided are a system and a method for measuring a liquid level of a vehicle fuel tank, and more particularly, to a system for measuring a liquid level of a vehicle fuel tank including an ultrasonic sensor unit provided on a bottom surface in the vehicle fuel tank to acquire measurement data for calculating a distance from the bottom surface in the fuel tank to a fuel surface and a central processing unit using the measurement data transmitted from the ultrasonic sensor unit by a preset number of times for a preset time to calculate liquid level information of the fuel tank.

IPC Classes  ?

  • G01F 23/296 - Acoustic waves
  • G01S 7/52 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
  • G01F 25/00 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
  • G01S 15/88 - Sonar systems specially adapted for specific applications

43.

Brushless direct current (BLDC) motor of fuel pump for motor vehicle

      
Application Number 15400241
Grant Number 10498187
Status In Force
Filing Date 2017-01-06
First Publication Date 2017-07-13
Grant Date 2019-12-03
Owner COAVIS (Republic of Korea)
Inventor
  • Pae, Wan Sung
  • Lee, Hyun Tae
  • Han, Jin Woo

Abstract

Provided is a brushless direct current (BLDC) motor applied to a fuel pump for a motor vehicle, and more particularly, a BLDC motor of a fuel pump for a motor vehicle in which an end of a shaft of a rotor is coupled to a stator side to be rotated such that a length of the shaft is reduced.

IPC Classes  ?

  • H02K 5/167 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
  • H02K 5/02 - Casings or enclosures characterised by the material thereof
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 5/00 - Pumps with circumferential or transverse flow

44.

Fuel pump for vehicle having brush holder for preventing shake of brush

      
Application Number 15299232
Grant Number 10447121
Status In Force
Filing Date 2016-10-20
First Publication Date 2017-04-27
Grant Date 2019-10-15
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Hyun Tae
  • Yu, Gyu Sang
  • Sohn, In Seok

Abstract

The present invention relates to a fuel pump for vehicle supplying power to a commutator and an armature through a brush to prevent the brush from shake, which comprises the brush, a spring mounted on a top of the brush, the commutator contacted to a bottom of the brush, a brush holder surrounding the brush and the spring, and a first hole formed for fuel flow at a front side of the brush holder in a rotational direction of the commutator based on the brush.

IPC Classes  ?

  • H02K 13/10 - Arrangements of brushes or commutators specially adapted for improving commutation
  • H02K 5/14 - Means for supporting or protecting brushes or brush holders
  • H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
  • F02M 51/04 - Pumps peculiar thereto

45.

Driving control method for BLDC motor

      
Application Number 15272229
Grant Number 10483883
Status In Force
Filing Date 2016-09-21
First Publication Date 2017-03-23
Grant Date 2019-11-19
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Suk Min
  • Jang, Young Sub

Abstract

Provided is driving control method of Brushless DC (BLDC) motor, including: a step of initial driving command input, initially inputting a driving command to the BLDC motor; a step of the first position alignment, compulsively aligning rotor of the BLDC motor at a predetermined position; a step of forced driving, compulsively driving the rotor of the BLDC motor compulsively aligned by accelerating the rotor of the BLDC motor; a step of feedback control, performing feedback control of the BLDC motor; a step of driving off, inputting a stop command to the BLDC motor; and a step of the second position alignment, compulsively aligning the rotor of the BLDC motor at the predetermined position again.

IPC Classes  ?

  • H02P 27/08 - 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 with pulse width modulation
  • H02P 6/20 - Arrangements for starting
  • H02P 6/24 - Arrangements for stopping

46.

Liquid level sensor that adapts to pressure changes

      
Application Number 15153587
Grant Number 10197432
Status In Force
Filing Date 2016-05-12
First Publication Date 2016-11-24
Grant Date 2019-02-05
Owner COAVIS (Republic of Korea)
Inventor
  • Mo, Dong Heon
  • Kim, Hae Seong

Abstract

Provided is a liquid level sensor for a fuel tank including: a case having a filled liquid filled therein and closed; a resistor substrate provided in the case and a wiper contacting the resistor substrate; and a damper provided in the case and absorbing a pressure change of an inner portion of the case. The liquid level sensor for a fuel tank is configured to absorb a pressure change of the inner portion of the case, thereby making it possible to prevent leakage of the filled liquid that may occur due to the pressure change of the inner portion of the case.

IPC Classes  ?

  • G01F 23/36 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means
  • G01F 15/14 - Casings, e.g. of special material

47.

Flow rate measuring device and method capable of correcting gradient

      
Application Number 14958557
Grant Number 09581473
Status In Force
Filing Date 2015-12-03
First Publication Date 2016-06-09
Grant Date 2017-02-28
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Suk Min
  • Jang, Young Sub
  • Kim, Se Jin
  • Kim, In Gon
  • Sohn, In Seok

Abstract

The following disclosure relates to a flow rate measuring device and method capable of correcting a gradient. More particularly, the following disclosure relates to a flow rate measuring device and method capable of correcting a gradient that may measure a flow rate having a minimized measurement error by including a sensor unit provided on a bottom surface of an inner portion of a fuel tank in order to accurately measure a flow rate value remaining in the fuel tank to obtain distance information between the bottom surface of the fuel tank and an oil surface and gradient information of the fuel tank itself.

IPC Classes  ?

  • G01F 1/20 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
  • G01F 1/00 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
  • G01F 23/296 - Acoustic waves

48.

Multiple stage fuel pump

      
Application Number 14930312
Grant Number 10119509
Status In Force
Filing Date 2015-11-02
First Publication Date 2016-05-05
Grant Date 2018-11-06
Owner COAVIS (Republic of Korea)
Inventor
  • Yu, Gyu Sang
  • Choi, Won Young
  • Sohn, In Seok

Abstract

A multi-stage fuel pump includes a casing having a fuel intake formed on one side thereof and a fuel discharge port formed on the other side thereof, and a plurality of impellers provided within the casing, having a plurality of blades disposed on a circumferential surface in an outward direction of the circumferential surface and having blade chambers formed between the blades and penetrating through upper and lower surfaces of the impellers to allow fuel to be discharged and introduced to and from upper and lower sides of the blades, and formed in multiple stages, wherein fuel intaken through the fuel intake according to rotation of the impellers is discharged to the fuel discharge port through the blade chambers of the impellers, and the numbers of the blades of each of the impellers are different, thereby reducing blade passage frequency (BPF) noise generated according to rotation of the impellers.

IPC Classes  ?

  • F02M 59/16 - Pumps specially adapted for fuel-injection and not provided for in groups characterised by having multi-stage compression of fuel
  • F04D 5/00 - Pumps with circumferential or transverse flow
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
  • F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing

49.

Device for magnetizing ring-shaped magnet for BLDC motor

      
Application Number 14729911
Grant Number 09576715
Status In Force
Filing Date 2015-06-03
First Publication Date 2015-12-31
Grant Date 2017-02-21
Owner COAVIS (Republic of Korea)
Inventor
  • Moon, Seong Hwan
  • Pae, Wan Sung
  • Sohn, In Seok

Abstract

Provided is a device for magnetizing a ring-shaped magnet for a brushless direct current (BLDC) motor, including: a rotor having a ring-shaped magnet installed on an outer peripheral surface of a rotor core; and a plurality of magnetizing yokes disposed so as to be spaced apart from each other by a predetermined interval while facing an outer peripheral surface of the ring-shaped magnet, magnetizing the ring-shaped magnet to form even-numbered unit magnets, and magnetizing the ring-shaped magnet only in regions except for one end and the other end of the unit magnets.

IPC Classes  ?

  • H01F 13/00 - Apparatus or processes for magnetising or demagnetising
  • H02K 15/03 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

50.

Apparatus for fixing reservoir body assembly of fuel pump module into fuel tank

      
Application Number 14450483
Grant Number 09441585
Status In Force
Filing Date 2014-08-04
First Publication Date 2015-03-19
Grant Date 2016-09-13
Owner COAVIS (Republic of Korea)
Inventor
  • Lim, Jong Keun
  • Kim, Joon Sup
  • Yoon, Chan Heum
  • Lee, Tae Hoon
  • Choi, Yong Hwan

Abstract

Provided is an apparatus for fixing a reservoir body assembly of a fuel pump module into a fuel tank. The apparatus includes: a fixed retainer fixed into the fuel tank to be integrated with the fuel tank; and a moving coupled retainer coupled with the fixed retainer in a state in which a reservoir body assembly pumping fuel in the fuel tank is disposed at an assembling location with the fixed retainer to mount the reservoir body assembly so as to fix the reservoir body assembly.

IPC Classes  ?

  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

51.

Impeller for fuel pump of vehicle

      
Application Number 14328880
Grant Number 09546666
Status In Force
Filing Date 2014-07-11
First Publication Date 2015-02-19
Grant Date 2017-01-17
Owner COAVIS (Republic of Korea)
Inventor
  • Lee, Bong Ju
  • Lee, Hyun Tae
  • Moon, Seong Hwan
  • Jeon, Mun Sik
  • Sohn, In Seok

Abstract

Provided is an impeller for a fuel pump of a vehicle capable of decreasing a magnitude of high frequency fluid noise due to high speed rotation of the impeller by upper and lower blades of impeller blades positioned between upper and lower casings of the fuel pump and coupled to a shaft of a driving motor to deliver a fuel by rotational force so as to have asymmetrical angles based on the center of a thickness of an impeller body in sucking the fuel from a fuel tank and supplying the fuel to an engine of an internal combustion engine.

IPC Classes  ?

52.

Strainer and fuel pump module having the same

      
Application Number 14283553
Grant Number 10145341
Status In Force
Filing Date 2014-05-21
First Publication Date 2014-11-27
Grant Date 2018-12-04
Owner COAVIS (Republic of Korea)
Inventor
  • Kim, Jeong Sik
  • Lee, Woo Keun
  • Kim, Du Hyun
  • Lee, Eun Ju

Abstract

Provided are a strainer and a fuel pump module having the same, and more particularly, a strainer capable of preventing filter paper from stopping since the filter paper contacts each other at a portion at which the strainer is folded, in the strainer connected to an inlet of a fuel pump or a fuel pump module to filter fuel sucked thereinto, and a fuel pump module having the same.

IPC Classes  ?

  • F02M 37/14 - Feeding by means of driven pumps the pumps being combined with other apparatus
  • F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

53.

Fuel amount detection device for vehicle

      
Application Number 14087538
Grant Number 09021871
Status In Force
Filing Date 2013-11-22
First Publication Date 2014-03-20
Grant Date 2015-05-05
Owner Coavis (Republic of Korea)
Inventor
  • Kim, Kyunghwan
  • Kim, Jeongsik

Abstract

Provided is a fuel amount detection device for a vehicle positioned in a fuel tank of the vehicle to detect a remaining fuel amount. In the fuel amount detection device for a vehicle, a resistor pattern and a conductive pattern formed on a resistor substrate and spaced apart from each other are electrically connected to each other by a conductive material coated on a conductive film pressed by a contactor to prevent abrasion of the resistor pattern formed on the resistor substrate, thereby making it possible to improve durability. In addition, since the resistor pattern is sealed by the conductive film, it does not contact fuel, such that corrosion of the resistor pattern is prevented, thereby making it possible to accurately detect a fuel amount.

IPC Classes  ?

  • G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
  • G01F 23/76 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by the construction of the float
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • G01F 23/36 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means

54.

COAVIS

      
Application Number 012058889
Status Registered
Filing Date 2013-08-12
Registration Date 2014-03-28
Owner COAVIS (Republic of Korea)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

Fuel filters; self-regulating fuel pumps; fuel pumps and fuel pump modules for automotive vehicles and cycles. Black boxes for automotive vehicles and cycles; navigation apparatus for vehicles, electronic global positioning systems; monitoring instruments for automotive vehicles and cycles; car navigation computers; car video recorders; automotive instruments for recording digital data; digital tachographs for recording the vehicle's speed, location, azimuth, mileage, time, RPM, brake signal and traffic accident situations; fuel pressure regulators; electronic sensors for automotive vehicles; sensors for automobiles. Actuators for motor vehicles; parts and accessories for vehicles; DC motors for automotive vehicles and cycles; cycle pumps; motors for land vehicles.

55.

Fuel pump module for vehicle having excellent filtering efficiency

      
Application Number 13654596
Grant Number 09109554
Status In Force
Filing Date 2012-10-18
First Publication Date 2013-04-25
Grant Date 2015-08-18
Owner COAVIS (Republic of Korea)
Inventor
  • Yoon, Chanheum
  • Bang, Wokpyeong

Abstract

Provided is a fuel pump module for a vehicle includes: a flange assembly positioned at a top portion of a fuel tank; a reservoir body assembly positioned at an inner bottom portion of the fuel tank; and a guide rod connecting the flange assembly and the reservoir body assembly to each other, wherein the reservoir body assembly includes: a fuel pump forcibly supplying fuel in the fuel tank to an engine; and a filter having a column shape in which it includes a hollow having the fuel pump positioned therein, installed in a form in which it is inserted into a case forming an appearance of the reservoir body assembly and having the fuel pump installed therein, and installed to allow the fuel before passing through the fuel pump to pass therethrough, thereby filtering foreign materials included in the fuel.

IPC Classes  ?

  • F02M 37/04 - Feeding by means of driven pumps
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

56.

COAVIS

      
Serial Number 85896052
Status Registered
Filing Date 2013-04-05
Registration Date 2014-01-28
Owner COAVIS (Republic of Korea)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

Fuel pumps for automobiles; pneumatic valve actuators for automobiles; parts and accessories for automobiles, namely, air filters for automobile engines; pumps as parts of motors for motorcycles Direct current (DC) motors for automobiles; parts and accessories for automobiles, namely, air pumps for automobiles; air pumps for motorcycles; Motors for motorcycles; Motors for land vehicles

57.

Fuel pump module for supplying diesel fuel

      
Application Number 13562453
Grant Number 09151257
Status In Force
Filing Date 2012-07-31
First Publication Date 2013-03-14
Grant Date 2015-10-06
Owner COAVIS (Republic of Korea)
Inventor
  • Jeon, Munsik
  • Yoon, Chanheum
  • Mo, Dong-Heon

Abstract

Provided is a fuel pump module for supplying diesel fuel. The fuel pump module in accordance with exemplary embodiments of the present invention is configured to include a flange assembly fixed to an inlet of a fuel tank and a reservoir body assembly disposed in the fuel tank, wherein the reservoir body assembly includes: a filter that removes foreign objects included in the diesel fuel; a fuel pump that forcibly circulates the diesel fuel passing through the filter to a diesel engine; and a pump connection return passage that supplies fuel toward a diesel engine through a supply line of fuel but supplies the diesel fuel that is returned without being consumed by the diesel engine between the filter and the fuel pump to supply the fuel to the fuel pump without passing through the filter.

IPC Classes  ?

  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

58.

Fuel pump module

      
Application Number 13542305
Grant Number 08820350
Status In Force
Filing Date 2012-07-05
First Publication Date 2013-02-28
Grant Date 2014-09-02
Owner Coavis (Republic of Korea)
Inventor
  • Kim, Joonseup
  • Lee, Wookeun

Abstract

Provided is a fuel pump module in which a portion of fuel transmitted from a fuel pump provided in a reservoir or fuel returned from an engine is supplied to a first jet and a second jet and a portion of the fuel is supplied from a first jet tower to a second jet tower through a connection tube connecting the first jet tower and the second jet tower to each other when the returned fuel passes through the first jet and the second jet and is then jetted to each of the first jet tower and the second jet tower to fill an inner portion of the second jet tower with the fuel, such that the fuel in a second space part of a fuel tank is rapidly transmitted, thereby making it possible to stably supply the fuel to the engine.

IPC Classes  ?

  • F04F 5/00 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
  • F02M 37/02 - Feeding by means of suction apparatus, e.g. by air flow through carburettors
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

59.

Reservoir for fuel tank

      
Application Number 13337204
Grant Number 08789515
Status In Force
Filing Date 2011-12-26
First Publication Date 2013-01-03
Grant Date 2014-07-29
Owner Coavis (Republic of Korea)
Inventor
  • Kwon, Kusung
  • Yoon, Chanheum

Abstract

Provided is a reservoir for a fuel tank not including a pump and capable of allowing fuel to be smoothly transferred by effectively blocking a solidification material when solidification occurs in the fuel in a low temperature environment.

IPC Classes  ?

  • F02M 37/02 - Feeding by means of suction apparatus, e.g. by air flow through carburettors
  • F02M 37/00 - Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines

60.

Turbine fuel pump for vehicle

      
Application Number 13438341
Grant Number 08979475
Status In Force
Filing Date 2012-04-03
First Publication Date 2012-10-11
Grant Date 2015-03-17
Owner Coavis (Republic of Korea)
Inventor Lee, Hyuntae

Abstract

Provided is a turbine fuel pump for a vehicle. More particularly, provided is a turbine fuel pump for a vehicle that can improve efficiency of the fuel pump and solve pressure instability caused by collision of fuel by forming a separate independent channel in a lower casing, an impeller, and an upper casing where channels of fuel are formed at the time of suctioning fuel from the fuel tank and supplying fuel to an engine of an internal combustion engine.

IPC Classes  ?

61.

Impeller of fuel pump for vehicle

      
Application Number 13438400
Grant Number 09074607
Status In Force
Filing Date 2012-04-03
First Publication Date 2012-10-11
Grant Date 2015-07-07
Owner COAVIS (Republic of Korea)
Inventor Lee, Hyuntae

Abstract

Provided is an impeller of a fuel pump for a vehicle. More particularly, an impeller of a fuel pump for a vehicle, which can improve delivery pressure and a delivery speed of fuel by modifying a shape of an impeller blade that is provided between an upper casing and a lower casing of a fuel pump and is joined to a rotational shaft of a driving motor to deliver fuel by using rotational force at the time of suctioning fuel from a fuel tank and supplying fuel to an engine of an internal combustion engine.

IPC Classes  ?

  • F04D 29/18 - Rotors
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

62.

Fuel pump module for damping vibration

      
Application Number 13279672
Grant Number 08764419
Status In Force
Filing Date 2011-10-24
First Publication Date 2012-04-26
Grant Date 2014-07-01
Owner COAVIS (Republic of Korea)
Inventor
  • Jeon, Mun-Sik
  • Yoon, Chan-Heum
  • Kim, Hoi-Hyun
  • Kim, Hyoung-Il
  • Lim, Seung-Min

Abstract

Provided is a fuel pump module for a vehicle in which a fuel pump, which is a vibration body, is physically coupled to an intank filter, a primary filter, and the like, which are other components of the fuel pump module, to have increased mass, such that unique harmonic acceleration of the fuel pump is reduced, a unique vibration area of the fuel pump or the fuel pump module is changed, and harmonic vibration of the fuel pump is thus positioned at the unique vibration area of the fuel pump or the fuel pump module, thereby making it possible to remove noise generated in a fuel tank due to abnormal vibration of the fuel pump module.

IPC Classes  ?

  • F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
  • F02M 37/04 - Feeding by means of driven pumps
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • B60K 15/03 - Fuel tanks

63.

Apparatus for sensing fuel level in fuel tank

      
Application Number 13211395
Grant Number 08291946
Status In Force
Filing Date 2011-08-17
First Publication Date 2012-03-15
Grant Date 2012-10-23
Owner Coavis (Republic of Korea)
Inventor
  • Lim, Jongkeun
  • Kim, Youngchang
  • Sohn, Inseok
  • Shin, Kyuseob
  • Kim, Joonseup
  • Jeon, Munsik

Abstract

Provided is an apparatus for sensing a fuel level in a fuel tank for sensing an amount of fuel remaining in the fuel tank mounted in a vehicle. The apparatus for sensing a fuel level according to the present invention senses a residual amount of fuel in a fuel tank by contacting a resistance substrate with a wiper, the apparatus including: a case that forms a sealable filling solution filling space and has a filling solution inlet formed on a top thereof; a stopper that blocks the filling solution inlet formed in the case to seal the filling solution filling space; and a filling solution that is filled in the filling solution filling space to perform an anti-rusting and lubricating function, wherein the resistance substrate and the wiper are disposed in the filling solution filling space.

IPC Classes  ?

  • B65B 3/04 - Methods of, or means for, filling the material into the containers or receptacles
  • G01F 23/32 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
  • G01F 23/56 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements

64.

Drive-integrated type BLDC fuel pump module

      
Application Number 13061671
Grant Number 08561595
Status In Force
Filing Date 2010-12-14
First Publication Date 2012-01-05
Grant Date 2013-10-22
Owner Coavis (Republic of Korea)
Inventor
  • Baek, Se Dong
  • Kim, Kyoung Hwan
  • Pae, Wan Sung

Abstract

Provided is a driver-integrated type BLDC fuel pump module, which is used in a vehicle and in which a driver used for controlling the operation of a BLDC fuel pump is installed in a flange of the BLDC fuel pump module, thus removing the spatial limit caused when the driver is installed and reducing the length of an electric wire electrically connecting the driver to a BLDC fuel pump of the module, thereby solving the problem of the operational performance of the BLDC fuel pump deteriorating as a result of both the voltage drop in the electric wire and a reduction in the operational efficiency of the pump.

IPC Classes  ?

  • F02M 37/08 - Feeding by means of driven pumps electrically driven
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

65.

Fuel pressure controller

      
Application Number 13167953
Grant Number 08511339
Status In Force
Filing Date 2011-06-24
First Publication Date 2011-12-29
Grant Date 2013-08-20
Owner Coavis (Republic of Korea)
Inventor
  • Kim, Kyunghwan
  • Baek, Se-Dong
  • Mo, Dongheon
  • Kim, Jeongsik

Abstract

A fuel pressure controller used in a fuel supply device of an automobile has an open-close ball insertion groove formed to be protruding from a side of a valve pressing member. The valve pressing member has a predetermined open area in a circumferential direction and in a radial direction to prevent separation of an open-close ball even at the time of an operation, such that pressure may be accurately controlled and noise may be reduced.

IPC Classes  ?

  • F16K 15/04 - Check valves with guided rigid valve members shaped as balls

66.

In-tank filter of fuel pump module

      
Application Number 13070079
Grant Number 09080537
Status In Force
Filing Date 2011-03-23
First Publication Date 2011-09-29
Grant Date 2015-07-14
Owner COAVIS (Republic of Korea)
Inventor
  • Choi, Youngchol
  • Cho, Hayoung
  • Hwang, Jinsik
  • Yoon, Chanheum
  • Lee, Jongman
  • Kim, Younghoon
  • Lee, Haisung

Abstract

Provided is an in-tank filter, which is a component of a fuel pump module positioned in a fuel tank of a vehicle, etc., to supply fuel to an engine. The in-tank filter includes: a filter media filtering foreign materials; an upper container made of a synthetic resin material and having a filter media insertion space therein, the filter media insertion space having a filter media inserted thereinto; a lower container made of a synthetic resin material and coupled to the upper container to block a lower portion of the upper container; and a deformation prevention reinforcing ring having a container insertion hole formed therein so as to be closely adhered to an outer side of the upper container when the upper container is inserted thereinto and preventing the upper container inserted into the container insertion hole from expanding.

IPC Classes  ?

  • B01D 35/02 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
  • B01D 35/31 - Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • B01D 35/30 - Filter housing constructions
  • F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

67.

Fuel pump module with driver equipped inside fuel tank

      
Application Number 13028586
Grant Number 08672651
Status In Force
Filing Date 2011-02-16
First Publication Date 2011-08-25
Grant Date 2014-03-18
Owner Coavis (Republic of Korea)
Inventor
  • Pae, Wan-Sung
  • Kim, Hyung-Min
  • Kim, Kyeong-Hwan
  • Sohn, Inseok

Abstract

Provided is a fuel pump module used for a car, and more particularly, to a fuel pump module with a driver equipped inside a fuel tank capable of solving a problem of space limitation due to the installation of the driver by disposing the driver for controlling a BLDC fuel pump between a flange and a reservoir and mounting it in the fuel tank, minimizing the degradation in performance of the BLDC fuel pump caused by voltage drop and efficiency degradation due to a wire by reducing a length of a wire for electrically connecting the driver with the BLDC fuel pump, and achieving a sufficient heat radiation effect by directly transferring the heat energy generated from electrical devices such as FET, MCU, or the like, mounted in the driver to the fuel in the fuel tank through the case cover.

IPC Classes  ?

  • F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric

68.

Flange for fuel pump module and manufacturing method thereof

      
Application Number 13028661
Grant Number 08656588
Status In Force
Filing Date 2011-02-16
First Publication Date 2011-08-25
Grant Date 2014-02-25
Owner Coavis (Republic of Korea)
Inventor
  • Cho, Ha Young
  • Choi, Jae Won
  • Kim, Jin Seok

Abstract

Disclosed is a flange for a fuel pump module, which includes an adhesion enhancing member so that there is no gap between a power supply terminal and a resin material for forming a flange, thus further increasing injection efficiency and sealing performance. A method of manufacturing such a flange is also provided.

IPC Classes  ?

  • B23P 17/00 - Metal-working operations, not covered by a single other subclass or another group in this subclass
  • B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
  • B31B 1/60 - Uniting opposed surfaces or edges; Taping

69.

Armature for fuel pump and manufacturing method thereof

      
Application Number 13024026
Grant Number 08663738
Status In Force
Filing Date 2011-02-09
First Publication Date 2011-08-11
Grant Date 2014-03-04
Owner Coavis (Republic of Korea)
Inventor
  • Moon, Kisang
  • Moon, Seonghwan

Abstract

Disclosed herein are an armature for fuel pumps and a manufacturing method thereof, in which a polymer coating film is formed on an armature core such that the armature has corrosion resistance to an alcohol fuel and to a highly corrosive fuel.

IPC Classes  ?

  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
  • F04D 29/00 - NON-POSITIVE-DISPLACEMENT PUMPS - Details, component parts, or accessories

70.

Fuel pump module

      
Application Number 13006971
Grant Number 08763589
Status In Force
Filing Date 2011-01-14
First Publication Date 2011-07-21
Grant Date 2014-07-01
Owner COAVIS (Republic of Korea)
Inventor
  • Lim, Jongkeun
  • Sohn, Inseok
  • Shin, Kyuseob
  • Kim, Joonseup
  • Jeon, Munsik

Abstract

A fuel pump module including: a reservoir installed in a fuel tank, the reservoir being charged with a predetermined amount of fuel; a fuel pump installed in the reservoir and pumping the fuel contained in the reservoir to an internal combustion engine; a jet pump injecting a fuel jet into the reservoir to thereby introduce the fuel stored in the fuel tank into the reservoir; a guide tube installed on the jet pump and guiding both the fuel jet and the fuel introduced from the fuel tank along with the fuel jet into the reservoir; and a filter unit partitioning the interior of the reservoir into a fuel suction area, into which the fuel is introduced by the fuel pump, and a fuel charging area, which is charged with the fuel from the fuel tank, thus preventing foreign substances from being introduced from the fuel charging area into the fuel suction area.

IPC Classes  ?

  • F02M 37/08 - Feeding by means of driven pumps electrically driven
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

71.

Fuel pump module

      
Application Number 12987621
Grant Number 08919326
Status In Force
Filing Date 2011-01-10
First Publication Date 2011-07-14
Grant Date 2014-12-30
Owner Coavis (Republic of Korea)
Inventor
  • Lim, Jong Keun
  • Sohn, In Seok
  • Kim, Ohk Sung
  • Kim, Joon Seup

Abstract

A fuel pump module, in which an in-tank filter and a fuel pump are installed at respective locations and held by a pump retainer, thereby allowing fuel to easily flow in the fuel pump module and realizing smallness and improved filtering performance of the fuel pump module.

IPC Classes  ?

  • F02M 37/08 - Feeding by means of driven pumps electrically driven
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir

72.

Flange for fuel pump module and manufacturing method thereof

      
Application Number 13004483
Grant Number 08561597
Status In Force
Filing Date 2011-01-11
First Publication Date 2011-07-14
Grant Date 2013-10-22
Owner Coavis (Republic of Korea)
Inventor
  • Lim, Jong Keun
  • Sohn, In Seok
  • Kim, Young Chang
  • Kim, Joon Seup
  • Jeon, Mun Sik
  • Kim, Jin Seok

Abstract

A flange for a fuel pump module and a manufacturing method thereof, in which the passage communicating a first valve seat with a second valve seat in the flange can be easily and simply formed by inserting a passage forming piece in a mold without requiring an additional process during an injection-molding process of manufacturing the flange.

IPC Classes  ?

  • F02M 37/04 - Feeding by means of driven pumps
  • B29B 13/00 - Conditioning or physical treatment of the material to be shaped

73.

DRIVER-INTEGRATED TYPE BLDC FUEL PUMP MODULE

      
Application Number KR2010008955
Publication Number 2011/074863
Status In Force
Filing Date 2010-12-14
Publication Date 2011-06-23
Owner COAVIS (Republic of Korea)
Inventor
  • Baek, Se Dong
  • Kim, Kyoung Hwan
  • Pae, Wan Sung

Abstract

The present invention relates to a driver-integrated type BLDC fuel pump module used in a motor vehicle, and more particularly, to a driver-integrated type BLDC fuel pump module in which a driver for controlling a BLDC fuel pump is mounted on a flange of the BLDC fuel pump module to thereby prevent space restrictions for installing the driver, and in which the length of the wire for electrical connection between the driver and the BLDC fuel pump is reduced to thereby minimize the degradation of the performance of the BLDC fuel pump resulting from a voltage drop and efficiency reduction caused by the wire.

IPC Classes  ?

  • F02M 37/08 - Feeding by means of driven pumps electrically driven
  • F02M 37/10 - Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven

74.

Sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor

      
Application Number 11916735
Grant Number 08015871
Status In Force
Filing Date 2006-06-07
First Publication Date 2008-08-28
Grant Date 2011-09-13
Owner Coavis (Republic of Korea)
Inventor
  • Sohn, In-Seok
  • Kim, Kyeong-Hwan
  • Jeon, Mun-Sik
  • Kim, Hyung-Min

Abstract

The present invention relates to a sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor. The sender unit for sensing the level of remaining fuel in a fuel tank of a vehicle is fixed in the fuel tank to sense the level of the remaining fuel by detecting the position of a float that floats depending on the level of the liquid surface of the fuel. The sender unit includes a casing; a disk-shaped rotor yoke pivotably received in the casing; a ring-shaped magnet fixed to a lower portion of the rotor yoke; a stator yoke that is a magnetic body including a plurality of horizontal arms spaced apart from a lower surface of the magnet so as to form a closed magnetic circuit together with the magnet; a magnetic sensing element fixed within a gap formed in the stator yoke; a plate which is fixedly received in the casing and to which the stator yoke is fixed; and a rod having one side end connected to the float and the other side end penetrating through the casing and fixed to the rotor yoke. According to the present invention, it is possible to accurately sense the level of fuel remaining in a fuel tank in a non-contacting manner, thereby improving the durability of the device.

IPC Classes  ?

  • G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
  • G01F 23/32 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
  • G08B 21/00 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for

75.

Impeller for fuel pumps

      
Application Number 11450825
Grant Number 07416381
Status In Force
Filing Date 2006-06-09
First Publication Date 2006-10-12
Grant Date 2008-08-26
Owner COAVIS (Republic of Korea)
Inventor
  • Baek, Se-Dong
  • Park, Jae-Seung
  • Kim, Young-Hoon
  • Chang, Sung-Uk

Abstract

A fuel pump for a vehicle comprises: a driving motor; an impeller having a substantially circular shape, the impeller being rotatable by operation of the driving motor; and a pump casing covered with a casing cover, the pump casing and casing cover together defining a central cavity for receiving the impeller rotatable therein, the pump casing and casing cover including a fuel inlet port and a fuel outlet port, the pump casing and casing cover each further including a circular groove formed along the surface thereof in respective fluid communication with the central cavity of the pump casing and casing cover. The impeller includes a plurality blades of generally V-shape cross-section disposed along an outer surface of the impeller with a plurality of blade grooves defined between the blades, the blade grooves in fluid communication with respective circular groove of the pump casing and casing cover, wherein each of the blades includes a fuel inlet blade portion disposed at an inner area of the blade grooves and a fuel outlet blade portion disposed at an outer area of the blade grooves, with a boundary portion disposed between the fuel inlet blade portion and the fuel outlet blade portion, in which a front surface angle and a rear surface angle of each of the fuel inlet blade portion and the fuel outlet blade portion respectively varies relative to the length of each of the blades.

IPC Classes  ?

  • F04D 5/00 - Pumps with circumferential or transverse flow