An actuator cover for a solenoid actuator includes a cover body defining an interior cavity configured to receive a solenoid actuator. An opening at a first end of the cover body is configured to receive the solenoid actuator therethrough. A position sensor is disposed within the interior cavity of the cover body, external to the solenoid actuator. The position sensor is configured to sense a position of an actuator pin movable by the solenoid actuator.
H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
2.
POPPET ASSEMBLY AND A CAM-ACTUATED CONTROL VALVE HAVING A POPPET ASSEMBLY
The present disclosure provides a control valve including a camshaft and one or more poppet assemblies. In general, the one or more poppet assemblies can include a poppet carriage that is moveable by the camshaft between a first end position and a second end position, a poppet coupled to the poppet carriage, and a spring configured bias the poppet carriage radially away from the camshaft, toward the first end position, in a first radial direction relative to a camshaft axis. According to some aspects, the camshaft can include a cam lobe that engages the poppet carriage to move the poppet carriage from the first end position toward the second end position in a second radial direction that is opposite the first radial direction.
F16K 11/16 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
F16K 31/524 - Mechanical actuating means with crank, eccentric, or cam with a cam
3.
Velocity-Based Control Methods for a Rotary Disconnect System
A disconnect system for selectively coupling or disconnecting a drive member and a driven member. The disconnect system includes a clutch ring rotationally coupled to a drive member, a solenoid actuator, and a clutch ring configured to be moved by the solenoid actuator to selectively transition the clutch ring between an engaged position where the clutch ring is rotationally coupled to a driven member and a disengaged position where the clutch ring is disconnected from the driven member. A controller can be provided to control the axial velocity of the clutch ring (e.g., relative to the rotational axis thereof) to reduce unwanted noise, vibrations, or harshness that can occur during the transition between engaged and disengaged positions.
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
4.
SYSTEMS AND METHODS FOR A THERMAL MANAGEMENT CONTROL VALVE WITH A LOUVER PLATE ASSEMBLY
A thermal management control valve includes a first housing defining a first fluid chamber, a second housing coupled to the first housing and defining a second fluid chamber, a rotary actuator having a drive shaft that defines a drive axis, a cam coupled to the drive shaft and having a cam slot, and a louver plate sealed between the first housing and the second housing and having a plurality of louver slots extending through the louver plate along a louver flow direction. The louver plate is coupled to the cam slot so that rotation of the cam selectively moves the louver plate along a radial direction relative to the drive axis. The radial direction is perpendicular to the louver flow direction.
F16K 31/524 - Mechanical actuating means with crank, eccentric, or cam with a cam
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
5.
SYSTEMS AND METHODS FOR A THERMAL MANAGEMENT CONTROL VALVE WITH A LOUVER PLATE ASSEMBLY
A thermal management control valve includes a first housing defining a first fluid chamber, a second housing coupled to the first housing and defining a second fluid chamber, a rotary actuator having a drive shaft that defines a drive axis, a cam coupled to the drive shaft and having a cam slot, and a louver plate sealed between the first housing and the second housing and having a plurality of louver slots extending through the louver plate along a louver flow direction. The louver plate is coupled to the cam slot so that rotation of the cam selectively moves the louver plate along a radial direction relative to the drive axis. The radial direction is perpendicular to the louver flow direction.
A control system for a cam phaser can include a cam phaser coupled to a cam shaft, the cam phaser to adjust a position of the cam shaft, an actuator in mechanical communication with the cam phaser, and a controller in electrical communication with the actuator, the controller including a processor and a memory. In one example, the processor is configured to calculate a first hysteresis position of the actuator with respect to a hysteresis band, determine if the actuator is within a first threshold distance of a first edge of the hysteresis band, and if the actuator is not within the first threshold distance of the first edge of the hysteresis band, command the actuator to displace across the hysteresis band.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Systems and method for a cam phaser are provided. In some configurations, the cam phaser includes a drive member having a first mating surface, a driven member having a second mating surface, and a locking mechanism arranged between the first mating surface and the second mating surface. The locking mechanism is operable to contact the first mating surface and the second mating surface, in response to an outside force applied to the driven member that loads the locking mechanism. The cam phaser further includes an engaging member. The engaging member is configured to selectively actuate the locking mechanism to enable rotation of the driven member relative to the drive member. The cam phaser may include a reaction mechanism configured to receive additional force from an input mechanism and selectively transmit the additional force to the driven member to unload the locking mechanism.
F01L 1/352 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
A solenoid valve is provided. The solenoid valve can include a valve body, a solenoid actuator, a valve insert, and first and second movable valve elements. The valve body can include a valve bore, a control port, a first port, and a second port, in which the control port is arranged in a nose of the valve body. The solenoid actuator is coupled to the valve body and configured to selectively move a pin between a first position and a second position to move first and second valve elements. Movement of the pin, by the solenoid actuator, between the first position and the second position selectively connects the control port to the first port or the second port.
A phasing system for varying a rotational relationship between a first rotary component and a second rotary component includes a gear hub and a cradle rotor. A spider rotor is arranged between the gear hub and the cradle rotor to selectively lock and unlock relative rotation between the gear hub and the cradle rotor. A torsion spring is coupled between the gear hub and the cradle rotor to apply a torque load between the gear hub and the cradle rotor. A planetary actuator is coupled to the gear hub and the spider rotor. The planetary actuator is operable between a steady-state mode, in which relative rotation between the gear hub and the cradle rotor is inhibited, and a phasing mode, in which the planetary actuator receives a rotary input at a predetermined magnitude to selectively provide a relative rotation between the gear hub and the cradle rotor.
The present disclosure provides systems and methods to compensate for backlash within a cam phasing system. For example, compensating for backlash by commanding a predetermined amount of additional actuator movement to account for backlash within a cam phaser. According to some aspects, a spring is provided within a cam phaser to unidirectionally take up the backlash within the cam phasing system.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
11.
POPPET ASSEMBLY AND A CAM-ACTUATED CONTROL VALVE HAVING A POPPET ASSEMBLY
The present disclosure provides a control valve including a camshaft and one or more poppet assemblies. In general, the one or more poppet assemblies can include a poppet carriage that is moveable by the camshaft between a first end position and a second end position, a poppet coupled to the poppet carriage, and a spring configured bias the poppet carriage radially away from the camshaft, toward the first end position, in a first radial direction relative to a camshaft axis. According to some aspects, the camshaft can include a cam lobe that engages the poppet carriage to move the poppet carriage from the first end position toward the second end position in a second radial direction that is opposite the first radial direction.
F01L 3/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing facesParts or accessories thereof
A disconnect system for selectively coupling or disconnecting a drive member and a driven member. The disconnect system includes a clutch ring rotationally coupled to a drive member, a solenoid actuator, and a shift fork coupled to the clutch ring and configured to be pivotally moved by the solenoid actuator. The shift fork configured to be selectively moved by the solenoid actuator to transition the clutch ring between an engaged position where the clutch ring is rotationally coupled to a driven member and a disengaged position where the clutch ring is disconnected from the driven member.
A disconnect system for selectively coupling or disconnecting a drive member and a driven member. The disconnect system includes a clutch ring rotationally coupled to a drive member, a solenoid actuator, and a shift fork coupled to the clutch ring and configured to be pivotally moved by the solenoid actuator. The shift fork configured to be selectively moved by the solenoid actuator to transition the clutch ring between an engaged position where the clutch ring is rotationally coupled to a driven member and a disengaged position where the clutch ring is disconnected from the driven member.
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
A bi-stable solenoid includes a housing, a wire coil, a permanent magnet, an armature, a pin, and a spring. The wire coil is arranged within the housing. The armature is slidably arranged within the housing and is moveable between a first armature position and a second armature position. The pin at least partially extends out of the housing and is slidably engaged by the armature. The spring is biased between the armature and the pin. When the pin encounters an intermediate position between a retracted position and an extended position due to the pin engaging an obstruction, the spring is configured to maintain a biasing force on the pin until the obstruction is removed.
A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.
F01L 1/352 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
16.
SYSTEMS AND METHODS FOR A SELF-SHORTING BI-STABLE SOLENOID
A bi-stable solenoid includes a housing, a wire coil arranged within the housing, a first pole piece, a second pole piece, an armature slidably arranged within the housing, and a permanent magnet arranged within the armature between a first armature portion and a second armature portion. The first armature portion and the second armature portion are fabricated from a magnetically permeable material. Selective energization of the wire coil generates a wire coil flux path and is configured to move the armature between the first stable position and the second stable position. The first stable position is established by magnetic flux of the permanent magnet shorting through the first pole piece, and the second stable position is established by the magnetic flux of the permanent magnet traversing the wire coil flux path.
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
F16K 31/10 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet with additional mechanism between armature and closure member
H01F 7/06 - ElectromagnetsActuators including electromagnets
H01F 7/124 - Guiding or setting position of armatures, e.g. retaining armatures in their end position by mechanical latch, e.g. detent
A phasing system is provided. A phase angle between the gear hub and the cradle rotor can be driven by a planetary actuator. In some non-limiting examples, an input shaft rotationally coupled between a rotary actuator for rotation therewith. Rotation of the input shaft can unlock relative rotation between the cradle rotor and the gear hub. In some non-limiting examples, the phasing system can include a gear hub and a cradle rotor, and a torsion spring arrange therebetween. The torsion spring can be configured to apply an internal torque load between the gear hub and the cradle rotor to offset an external torque load applied to the gear hub or the cradle rotor.
A mechanical cam phasing system includes a stator, a cradle rotor, a first locking mechanism having a first locking feature and a second locking feature, a cage, and a second locking mechanism rotationally coupled to the cradle rotor and selectively moveable between a locking state and a phasing state. In the locking state, a clearance is provided between the cradle rotor and the cage to allow the cradle rotor to rotate relative to the cage and lock the first locking feature or the second locking feature. In the phasing state, the clearance between the cradle rotor and the cage is reduced to ensure rotational coupling between the cradle rotor and the cage in at least one direction, which displaces the first locking feature or the second locking feature relative to the cradle rotor and enables the cradle rotor to rotate relative to the stator.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
19.
Systems and methods for a solenoid having a permanent magnet
A solenoid is provided. The solenoid includes a housing, a pole piece, an end plate formed with or coupled to the housing, a wire coil arranged within the housing, a permanent magnet arranged between the pole piece and the end plate, an armature configured to selectively move between a first position and a second position in response to a current applied to the wire coil, and a spring configured to bias the armature. When the wire coil is de-energized, the armature is maintained in at least one of the first position and the second position. The first position is configured to be maintained by the spring and the second position is configured to be maintained by magnetic attraction between the armature and the permanent magnet through engagement between the armature and the pole piece.
The present disclosure provides a valve assembly including one or more poppet valves. In general, the valve assembly can have one or more poppet assemblies selectively actuatable between a first end position and a second end position. According to some aspects, a crankshaft assembly can be coupled to the one or more poppet assemblies and the crankshaft assembly can selectively actuate the one or more poppet assemblies between the first end position and the second end position.
F16K 31/16 - Operating meansReleasing devices actuated by fluid with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F16K 31/52 - Mechanical actuating means with crank, eccentric, or cam
F16K 31/528 - Mechanical actuating means with crank, eccentric, or cam with pin and slot
The present disclosure provides a multi-stable solenoid with one or more magnetic damping rings. In general, the magnetic damping rings provide an increased damping force to an armature of the multi-stable solenoid to ensure efficient operation, reduce detent position overshoot, and reduce an impact force at end positions.
H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
22.
SYSTEMS AND METHODS FOR CONTROLLED RELATIVE ROTATIONAL MOTION
A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.
A linear actuator is provided. The linear actuator includes a rotor assembly including a rotor and a lead screw. The lead screw is rotationally coupled to the rotor for rotation therewith. The linear actuator further includes a stator assembly configured to selectively rotate the rotor in a desired direction, and a body assembly having a shaft and a shaft tube. The shaft is keyed to the shaft tube and prevented from rotating with the rotor. The shaft includes an inner bore configured to threadably receive the lead screw therein. Selective rotation is configured to displace the shaft between an extended position and a retracted position.
A mechanical cam phasing system includes a stator, a cradle rotor, a first locking mechanism having a first locking feature and a second locking feature, a cage, and a second locking mechanism rotationally coupled to the cradle rotor and selectively moveable between a locking state and a phasing state. In the locking state, a clearance is provided between the cradle rotor and the cage to allow the cradle rotor to rotate relative to the cage and lock the first locking feature or the second locking feature. In the phasing state, the clearance between the cradle rotor and the cage is reduced to ensure rotational coupling between the cradle rotor and the cage in at least one direction, which displaces the first locking feature or the second locking feature relative to the cradle rotor and enables the cradle rotor to rotate relative to the stator.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock an helix rod during cam torque pulses.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
A bi-stable solenoid includes a housing, a wire coil, a permanent magnet, an armature, a pin, and a spring. The wire coil is arranged within the housing. The armature is slidably arranged within the housing and is moveable between a first armature position and a second armature position. The pin at least partially extends out of the housing and is slidably engaged by the armature. The spring is biased between the armature and the pin. When the pin encounters an intermediate position between a retracted position and an extended position due to the pin engaging an obstruction, the spring is configured to maintain a biasing force on the pin until the obstruction is removed.
An electromagnetic actuator having a permanent magnet coupled to an armature of the electromagnetic actuator is provided. The electromagnetic actuator includes a housing, and an armature assembly arranged within the housing. The armature assembly includes an armature and a permanent magnet coupled to the armature. The armature is movable between a first position and a second position, and the permanent magnet defines an axial magnet thickness and the armature defines an axial armature thickness. A ratio of the axial armature thickness to the axial magnet thickness is greater than approximately three.
H01H 51/06 - Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
H01H 45/04 - Mounting complete relay or separate parts of relay on a base or inside a case
H01H 47/22 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
H01F 7/08 - ElectromagnetsActuators including electromagnets with armatures
Systems and methods for varying a rotational relationship between a cam shaft and a crank shaft on an internal combustion engine (i.e., cam phasing) are provided. In particular, systems and methods are provided that facilitates a rotary position of a first component to be accurately controlled with a mechanism causing a second component, which can be coupled to the cam shaft or crank shaft, to follow the rotary position of the first component.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Systems and method for a two-way clutch are provided. In some configurations, the two-way clutch includes a driven member having a first mating surface, a drive member having a second mating surface, and a locking mechanism arranged between the first mating surface and the second mating surface. The locking mechanism is operable to contact the first mating surface and the second mating surface, in response to an outside force applied to the drive member that loads the locking mechanism. The two-way clutch further includes an engaging member. The engaging member provides a predetermined interference on the locking mechanism to hold the locking mechanism off of at least one of the first mating surface and the second mating surface, when the locking mechanism is in an unloaded state.
F16D 3/10 - Couplings with means for varying the angular relationship of two coaxial shafts during motion
F16D 41/064 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
F16D 15/00 - Clutches with wedging balls or rollers or with other wedgeable separate clutching members
F16D 41/067 - Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F16D 23/06 - Arrangements for synchronisation with an additional friction cluch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
Systems and methods for varying a rotational relationship between a cam shaft and a crank shaft on an internal combustion engine (i.e., cam phasing) are provided. In particular, systems and methods are provided that facilitates a rotary position of a first component to be accurately controlled with a mechanism causing a second component, which can be coupled to the cam shaft or crank shaft, to follow the rotary position of the first component.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Cam phasing systems and methods are provided. In particular, a cam phasing system is provided that includes a reduced number of components when compared to current mechanical cam phasing systems. The cam phasing system includes a helix locking design that is configured to frictionally lock a helix rod during cam torque pulses.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Systems and methods for a cam phasing control system are provided. In particular, systems and methods are provided for a cam phasing control system that can be configured to control a first cam phase actuator and a second cam phase actuator and selectively switch the operation thereof between a regenerative mode and an oil pressure actuation mode.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
33.
Systems and methods for an electromagnetic actuator
An electromagnetic actuator having a permanent magnet coupled to an armature of the electromagnetic actuator is provided. The electromagnetic actuator includes a housing, a pole piece arranged within the housing and secured by an end plate, and an armature assembly having an armature and a permanent magnet coupled to the armature. The armature is movable between a first position and a second position. The electromagnetic actuator further includes a wire coil positioned around the armature assembly and arranged within the housing. An actuation position of the armature between the first position and the second position is proportional to a magnitude of current applied to the wire coil.
H01H 51/06 - Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
H01H 45/04 - Mounting complete relay or separate parts of relay on a base or inside a case
H01H 47/22 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
An electromagnetic actuator having a unitary pole piece arranged within and coupled to a housing is provided. The housing is coupled to the unitary pole piece such that a load on the unitary pole piece is reduced during assembly and/or installation of the electromagnetic actuator. The unitary pole piece is structured to reduce leakage past an armature slidably received within the pole piece.
An electromagnetic actuator having a unitary pole piece arranged within and coupled to a housing is provided. The housing is coupled to the unitary pole piece such that a load on the unitary pole piece is reduced during assembly and/or installation of the electromagnetic actuator. The unitary pole piece is structured to reduce leakage past an armature slidably received within the pole piece.
An alignment member for a solenoid is provided. The solenoid includes a housing, a solenoid coil arranged within the housing, a first pole piece arranged within the housing, a second pole piece arranged at least partially within the housing, and a disk. The alignment member includes a first end, a second end opposite the first end, and a center portion that defines a center portion diameter that is less than a diameter defined by the first end and the second end.
A control valve that includes a valve body, a spool, and an actuator is provided. The valve body includes a plastic body housing and a metallic sleeve housed within the body housing. The spool is received within the metallic sleeve and is movable between a first position and a second position. The actuator is coupled to the valve body and to the spool.
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
38.
System and methods for an electromagnetic actuator
An electromagnetic actuator having an actuating permanent magnet and a simplified construction is provided. The electromagnetic actuator includes a housing having a base, a side wall extending from the base to a termination plane, and a substantially open side. The electromagnetic actuator further includes a pole piece arranged within the housing, a wire coil positioned around the pole piece and arranged within the housing, and a permanent magnet coupled to the pole piece by a spring and moveable between a first position and a second position. An actuation position of the permanent magnet between the first position and the second position is proportional to a magnitude of a current applied to the wire coil.
A push pin actuator apparatus is provided. The push pin actuator apparatus includes a housing, a wire coil arranged within the housing and arranged around a first armature and a second armature. The first armature is coupled to a first push pin and the second armature is coupled to a second push pin. The push pin actuator apparatus further includes a first permanent magnet and a second permanent magnet. A first spring and a second spring are arranged within the housing. The first spring engages the first armature and the second spring engages the second armature. The first push pin is actuated in response to a current being applied to the wire coil in a first direction, and the second push pin is actuated in response to a current being applied to the wire coil in a second direction opposite to the first direction.
Systems and methods for varying a rotational relationship between a cam shaft and a crank shaft on an internal combustion engine (i.e., cam phasing) are provided. In particular, systems and methods are provided that facilitates a rotary position of a first component to be accurately controlled with a mechanism causing a second component, which can be coupled to the cam shaft or crank shaft, to follow the rotary position of the first component.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Embodiments of the invention provide a control valve including a control valve body having an inlet passage, an outlet passage, a workport, and a chamber arranged in a fluid path between the workport and the outlet passage. The control valve further includes an annular poppet slidably received within the chamber and to selectively engage a poppet seat to inhibit fluid flow through the fluid path when a pressure in the fluid path is less than a predefined pressure level, and a valve element slidably received within the control valve body to selectively provide fluid communication between the inlet passage and the workport and selectively provide fluid communication between the workport and the outlet passage along the fluid path. The poppet is biased towards the poppet seat by an elastic element.
F16K 11/06 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F16K 15/08 - Check valves with guided rigid valve members shaped as rings
F16K 15/02 - Check valves with guided rigid valve members
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
A push pin actuator apparatus is provided. The push pin actuator apparatus includes a housing, a wire coil arranged within the housing and arranged around a first armature and a second armature. The first armature is coupled to a first push pin and the second armature is coupled to a second push pin. The push pin actuator apparatus further includes a first permanent magnet and a second permanent magnet arranged on opposing sides of the first armature, and a third permanent magnet and a fourth permanent magnet arranged on opposing sides of the second armature. The first push pin is actuated in response to a current being applied to the wire coil in a first direction, and the second push pin is actuated in response to a current being applied to the wire coil in a second direction opposite to the first direction.
An electromechanical solenoid has a solenoid assembly including a solenoid coil with a coil aperture formed therein. A pole piece assembly is positioned at least partially within the coil aperture, the pole piece assembly including a first pole piece and a second pole piece positioned at least partially within an hour-glass shaped alignment member. The first pole piece has a first bore and a first outer tapered surface extending away from the first bore, and the second pole piece has a second bore and a second outer tapered surface extending away from the second bore. An armature is moveable within the first bore and the second bore in response to a magnetic field produced by the solenoid coil.
A control system for varying cylinder valve timing of an internal combustion engine is provided. The control system includes a cam phase actuator having first and second actuator ports to adjust a rotational phase of a camshaft relative to a crankshaft, a first control valve, a second control valve, and a dynamic regeneration valve. In one embodiment, the dynamic regeneration valve is configured to enable the cam phase actuator to switch between operating in an oil pressure actuated mode and a cam torque actuated mode when adjusting the rotational phase of the camshaft relative to the crankshaft.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
45.
Systems and methods for fluid pump outlet pressure regulation
Fluid pump pressure regulation systems and methods have a valve body with a bore and a valve spool. The valve spool connects a first and second port to a third port in different valve spool positions. The first port is in fluid communication with an output of a fluid pump to receive a first fluid pressure from the fluid pump. The second port is in fluid communication with a fluid reservoir. The third port is in fluid communication with a fluid pump input to provide a second fluid pressure to the fluid pump to control the first fluid pressure from the fluid pump. A linear actuator is adjacent the valve body, with a first spring and a second spring biasing the valve spool in a first or second direction.
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
F16K 11/04 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
F04C 14/22 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
F04C 14/18 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
F01M 1/16 - Controlling lubricant pressure or quantity
F16K 51/00 - Other details not peculiar to particular types of valves or cut-off apparatus
A control valve includes a valve body with a longitudinal bore into which a first port, a second port, and a workport communicate. A valve element is slideably received within the longitudinal bore and has a valve element bore extending inwardly from one end. An aperture extends through the valve element to provide a fluid path between the workport and selectively the first port and the second port in different positions of the valve element in the longitudinal bore. A slug of solid material is received within the valve element bore and is operatively connected to transfer a force to a stationary component of the control valve without the force being applied to the valve element. This arrangement results in force due to pressure in the longitudinal bore acting on only an annular surface at the one end of the valve element.
A wide variety of machines have moveable members that are operated by an hydraulic actuator. For example, an internal combustion engine has a camshaft which is mechanically coupled to rotate with the crankshaft and which opens and closes cylinder intake and exhaust valves. Traditionally the camshaft timing was fixed at a setting that produced the best operation for all engine operating conditions. However, it has been recognized that engine performance can be improved if the valve timing varies as a function of engine speed, engine load, and other factors. Thus a hydraulic actuator is being used on some engines to vary the coupling relationship of the camshaft to the crankshaft. A solenoid operated valve controls the application of pressurized fluid to operate the hydraulic actuator.
A valve arrangement includes a valve body with a bore within which a spool slides to control fluid flow between first and second ports. The bore has an annular recess into which the first port opens and in which is located a check valve band formed by a strip with overlapping ends. Pressure in the first port causes the check valve band to contract and expand circumferentially to open and close the first port. A stop is located near one end of the strip and is engaged by the other end to limit the amount of contraction of the check valve band. Thus the diameter of the check valve band cannot contract smaller than the diameter of the bore, thereby retaining the check valve ring in the annular recess. The check valve band optionally has a plurality of tabs projecting from each edge and engaging side walls of the annular recess.
F16K 15/14 - Check valves with flexible valve members
F15B 13/044 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
49.
Electrohydraulic valve having a solenoid actuator plunger with an armature and a bearing
A solenoid operated valve has a valve body with a plurality of ports and a spool slideable within the valve body to interconnect the ports in different combinations. An actuator drives the spool into several operating positions. The actuator has a solenoid assembly with an armature that moves within a bore in response to an electromagnetic field. A push member projects from the armature and has a bearing secured thereto. The bearing has a cage that retains a plurality of rollable elements in slots separated by walls that are resilient enabling the rollable elements to be forced into the slots during assembly and thereafter be captured in the cage when the walls return to their original positions. A latch on the cage engages the push member to affix the bearing in place.
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
An electrohydraulic valve has a valve body with a longitudinal bore and a cylindrical exterior surface. An annular recess extends around the cylindrical exterior surface and the first port extends from the recess to the bore. A filter is formed by a plate that has a plurality of perforations and which is wrapped around valve body in the recess. The plate has a first end section at which a first tab is created and a second end section overlapping the first end section with a slot through which the first tab extends to secure the first and second end sections together. A spool is slideable into different positions within the bore of the valve body to selectively connect and disconnect the first port and a second. An actuator is operably coupled to move the spool into different positions within the bore.
A hydraulic valve has a valve body with a bore into which an inlet port, an outlet port, and a workport all open. A valve spool is slideably received within the bore. The valve spool has a first position that provides a path between the inlet port and the workport, and a second position that provides another path between the outlet port and the workport. Inlet port pressure tends to move the valve spool into the first position and outlet port pressure tends to move the valve spool into the second position. A linear actuator is coupled to the valve spool by a spring, thereby biasing the valve spool toward the first position. Another spring biases the valve spool toward the second position.
A vibration damper includes a cylinder within which a piston is slidably received thereby defining compression and rebound chambers. The piston has a bore with a valve seat through which fluid flows between those chambers. A poppet selectively engages the valve seat and forms a pilot chamber an opposite side of the poppet from the valve seat. The greater pressure within the compression or rebound chambers is applied by a first logic arrangement to the pilot chamber and a pilot spool control a fluid flow between the pilot chamber and a pressure cavity in the piston body. A second logic arrangement connects the pressure cavity to either the compression and rebound chamber which has the lesser pressure. A solenoid that moves the pilot valve element to control pressure in the pilot chamber and thus the amount that the poppet moves to allow fluid flow through the piston.
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