Entries |
Document | Title | Date |
20080236974 | Hydrodynamic clutch device - A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and the clutch housing, and has first and second flow passages which are axially offset from each other. The hub has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall. | 10-02-2008 |
20080236975 | Hydrodynamic clutch device - A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and a flow guide element, which is supported between the hub and the drive-side housing wall, and has first and second flow passages which are axially offset from each other. The flow guide element has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall. | 10-02-2008 |
20080257674 | Hydrodynamic clutch arrangement - A hydrodynamic clutch arrangement includes a clutch housing in which at least one hydrodynamic circuit formed by at least one pump wheel and one turbine wheel is provided. A bridging clutch can be actuated to produce an engaging movement to establish a working connection between a drive and a takeoff and to produce a disengaging movement to release this working connection. The hydrodynamic circuit and at least one pressure space are each connected by a flow route to pressure medium reservoir for actuating the clutch. At least one flow route serving to the fill the clutch housing is provided with a device for reducing the flow volume, which opens during the operating state to unblock the flow route but closes during the non-operating state to delay, at least, the drop in the internal pressure inside the clutch housing and thus in its filling volume. | 10-23-2008 |
20080257675 | Hydrodynamic clutch arrangement - A hydrodynamic clutch arrangement includes a clutch housing which can rotate about an axis of rotation; a hydrodynamic circuit formed by a pump wheel and a turbine wheel in the clutch housing; and a bridging clutch which can be actuated to establish and release a working connection between a drive and a takeoff. First flow routes connect the hydrodynamic circuit and a pressure space to at least one pressure medium reservoir, wherein said first flow routes serve to fill the clutch housing with pressure medium for actuating the bridging clutch. A second flow route carries pressure medium out of the clutch housing during an operating state, and a flow reducer in the second flow route closes to at least impede flow out of clutch housing in a non-operating state. | 10-23-2008 |
20080296111 | Lock-up clutch control method - A torque converter lock-up clutch may be controlled by a lock-up clutch regulator control valve. The valve is utilized to selectively direct a fluid to the torque converter or to a pressure regulator valve. For example, in a hydrodynamic condition of the torque converter, the valve permits fluid to flow to the torque converter. In a lock-up condition of the torque converter, the valve directs fluid to a pressure regulator valve which selectively permits pressure to build in the torque converter. | 12-04-2008 |
20080308375 | Force transfer device, a drive train with force transfer device, and a method for controlling the operation of a force transfer device in a drive train - A force transfer device with an input and an output, a hydrodynamic component, disposed between input and output, comprising at least one pump shell and one turbine shell and a device for bridging the power transfer through the hydrodynamic component, and a device for damping vibrations. The invention further relates to a drive train with such force transfer device and to a process for controlling the operation of a force transfer device in a drive train, comprising a first drive engine and an electrical machine, which can be operated at least as a generator. The invention is characterized in that an actuatable clutch device is disposed between the turbine shell and the output for decoupling the turbine shell from the output, and said clutch device is disposed in parallel with the lockup clutch. During braking operations through the electrical machine the lockup clutch and the turbine clutch are being deactivated. | 12-18-2008 |
20090014268 | Torque converter with cover plate directly attached to piston - A torque converter includes a turbine, a lockup clutch including a piston, and a damper having at least one cover plate, the cover plate being attached directly to piston. A method for assembling the torque converter includes passing a section of the piston through a hole in the cover plate and attaching the piston to the cover plate at the hole. | 01-15-2009 |
20090020385 | LOCK-UP DAMPER - There is provided a lock-up damper that affords greater design latitude. A lock-up damper | 01-22-2009 |
20090032351 | Combined sealing plate and leaf spring drive-plate - A hydraulic torque converter including a cover, a drive-plate driven by the cover, and a lock-up clutch having a piston plate, the piston plate being located between the drive plate and the cover, the piston plate and drive plate defining a hydraulic chamber for actuation of the piston plate. | 02-05-2009 |
20090038903 | Torque converter with piston centered in clutch plate - A torque converter including a cover and a bridging clutch for selective connection to the cover, the bridging clutch including a clutch plate fixed to the cover and having an inner radial surface and having a piston having an outer radial surface opposite the inner radial surface. A method for assembling a torque converter is also provided. | 02-12-2009 |
20090045023 | Torque converter damper flange with turbine centering feature - A torque converter including a turbine, an output shaft, and a damper having at least one cover plate radially fixed to the turbine, a flange driven by the damper and non-rotatably connected to the output shaft, the flange having an axially extending surface centering the cover plate. | 02-19-2009 |
20090065318 | OIL PRESSURE CONTROL APPARATUS - In one embodiment, an oil pressure control apparatus includes a belt-driven continuously variable transmission, a lockup clutch provided in a torque converter, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressure of various parts, and a lockup control valve that performs switching when controlling engagement/release of the lockup clutch. Control of the primary regulator valve and control of the lockup control valve are performed with a single linear solenoid valve. In this case, control of the primary regulator valve and control of the lockup control valve are performed in different ranges. | 03-12-2009 |
20090065319 | Torque converter with stator shaft one-way clutch - A hydraulic torque converter including a stator, a stator shaft, a one-way clutch including blocking elements and being connected to the stator shaft, a stator hub connecting the stator to the one-way clutch, and axial bearings supporting the stator hub, an axial length of the blocking elements being larger than an axial length between the bearings. Embodiments with blocking elements in a pump hub with an inner race with a radius similar to the stator shaft and with adjacent blocking elements are also disclosed. | 03-12-2009 |
20090071786 | TORQUE DAMPER - A torque damper can comprise a clutch piston arranged within a cover of a torque converter and can be adapted to be moved between a connected position and a non-connected position relative to the cover. Damper springs can be arranged along the circumference of the clutch piston. Connecting members can be arranged abutting against one end of the damper spring and adapted to connect a turbine arranged within the cover and the clutch piston via the damper spring. Damper holders can be arranged abutting against the other end of the damper spring and adapted to hold the damper spring against the compressive force applied to the damper spring from the connecting member. Guide sheets having wear resistance can be interposed between the circumference of the clutch piston and the damper spring and can be adapted to guide the damper spring. A torque input to the cover can be transmitted to the turbine via the clutch piston and the damper springs when the clutch piston is in the connected position. The guide sheets can be anchored to the damper holders and secured thereto immovably in the circumferential direction of the clutch piston. | 03-19-2009 |
20090071787 | Latching frictional engagement assembly using a check valve - A frictional engagement assembly for an automotive device, including: at least one frictionally engageable plate; a first piston plate displaceable in a first axial direction to urge the at least one frictionally engageable plate into frictional contact; a first resilient element engaged with the first piston plate and urging the first piston plate in a second axial direction substantially opposite the first axial direction; a check valve controlling fluid flow to displace the first piston plate; and an accumulator. As fluid from a chamber, at least partially formed by the first piston plate, discharges through the check valve, the accumulator controls fluid volume in the chamber to maintain a distal portion of the first piston plate, urging the at least one frictionally engageable plate into frictional contact, in a furthest position in the first axial direction. | 03-19-2009 |
20090078522 | Hydrodynamic torque converter with coupling spring device for the piston - A hydrodynamic torque converter with a driving pump wheel and a drive turbine wheel that is placed in a housing in such a way that it can rotate is fixed to the drive shaft of a drive unit, and is connected to the housing with a converter bridging coupling that has a piston which remains fixed, with the help of a coupling spring mechanism, but which can be rotated in an axial direction. | 03-26-2009 |
20090084649 | Torque transmission device - A torque transfer device in the drive train of a motor vehicle for transferring torque between a drive unit and a shaft rotatable about a rotation axis, including: a hydrodynamic torque converter, which includes a converter cover, connectable to the drive unit, and which can be coupled through a pump shell to a turbine shell for torque transfer, which can be bridged by a torque converter lockup clutch for torque transfer, which comprises a piston, movable in an axial direction within a range towards the cover in order to clamp a friction liner support with at least one friction liner between the piston and the cover for torque transfer. A friction ring is disposed between the piston and the friction liner support, and the friction ring is movable in an axial direction within a range between the piston and the friction liner support and connected to the converter cover. | 04-02-2009 |
20090095589 | LOCKUP DEVICE, AND FLUID-TYPE TORQUE TRANSMISSION DEVICE EQUIPPED WITH SAME - A lockup device | 04-16-2009 |
20090095590 | Torque transmission device - The invention relates to a torque transmission device, in particular in the power train of a motor vehicle, having a hydrodynamic torque converter that comprises a converter cover connectable or rather connected with a drive unit that is connectable via an impeller with a turbine wheel, which can be bypassed by means of a torque converter clutch, which comprises a piston, which relative to the converter cover is displaceable axially restrictedly. | 04-16-2009 |
20090101462 | HYDROKINETIC COUPLING DEVICE, COMPRISING A FRICTION DISC, CARRIED BY A ROTATING LINKING ELEMENT OF A TURBINE WHEEL WITH A DAMPER PLATE - A hydrokinetic coupling device ( | 04-23-2009 |
20090107790 | Hydrodynamic Torque Converter Device for an Automotive Drive Train - The invention relates to a hydrodynamic torque converter device ( | 04-30-2009 |
20090120754 | Hydrodynamic Torque Converter Device for an Automotive Drive Train - The invention relates to a hydrodynamic torque converter device for an automotive drive train, comprising a torsional vibration damper and a converter torus which is configured by an impeller, a turbine wheel and a stator. The torsional vibration damper has a first energy accumulating device with one ore more first energy accumulators, and a second energy accumulating device with one ore more second energy accumulators, which is connected in series to the first energy accumulating device. | 05-14-2009 |
20090127049 | Power transmission mechanism - A power transmission mechanism including at least one hydrodynamic component and a device for at least partially bridging over the transmission of power through the hydrodynamic component by means of a control device, having an actuating mechanism that can be charged by way of a chamber that is chargeable with a pressurizing agent, and at least one spring unit is interposed between the actuating mechanism and the device for at least partially bridging over the hydrodynamic component. | 05-21-2009 |
20090127050 | Normally closed three pass multi-function torque converter - A multi-function torque converter, including a pump clutch, and a resilient element arranged to close the pump clutch during operation of the torque converter in a torque converter mode. In one embodiment, the resilient element is arranged to close the pump clutch during operation of the torque converter in lock-up mode. In one embodiment, the torque converter includes a torque converter clutch. In one embodiment, the pump clutch and the torque converter clutch are closed during operation of the torque converter in a lock-up mode. | 05-21-2009 |
20090133978 | Multi-Plate Clutch and Hydrodynamic Torque Converter Device Having Said Multi-Plate Clutch - The invention relates to a multi-plate clutch ( | 05-28-2009 |
20090133979 | Torque converter with lock-up clutch having a split piston - A torque converter including a housing, a lock-up clutch, the lock-up clutch having a split piston having a radial inner portion and a radial outer portion, and a drive plate connecting the housing and the outer portion. | 05-28-2009 |
20090139815 | Control of Fluid Pressure in a Torque Converter of an Automatic Transmission - A system for controlling hydraulic fluid supplied to a torque converter of an transmission includes a torque converter including a chamber containing an impeller and a turbine, and a bypass clutch having a variable torque capacity, a source of variable control pressure, a latch valve changes in response to the variable control pressure alternately between an unlatched state, wherein the latch valve produces a low pressure output, and a latched state, wherein the latch valve produces a high pressure output, a first valve for limiting hydraulic pressure in the chamber alternately at two magnitudes of pressure in response to the low pressure output and the high pressure output, and a second valve responsive to the variable control pressure for regulating a magnitude of hydraulic pressure that actuates the bypass clutch and changes the torque capacity of the clutch. | 06-04-2009 |
20090139816 | Hydrodynamic Torque Converter Device for an Automotive Drive Train - The invention relates to a hydrodynamic torque converter device for an automotive drive train, comprising a torsional vibration damper, a converter torus which is configured by an impeller, a turbine wheel and a stator, and a converter lockup clutch. The torsional vibration damper has a first energy accumulating device with one ore more first energy accumulators, and a second energy accumulating device with one ore more second energy accumulators. The converter lockup clutch, the first energy accumulating device and the second energy accumulating device are connected in series. At least one intermediate part is interposed between the first and the second energy accumulating device and is connected to the two energy accumulating devices in series. The turbine wheel has an outer turbine shell that is connected to the intermediate part in a rotationally fixed manner or forms the same, an input element of the first energy accumulating device being used to transmit via the converter lockup clutch a torque for loading the first energy accumulating device when the converter lockup clutch is closed. The input element of the first energy accumulating device, for the purpose of loading a respective front of a respective first energy accumulator, has at least one respective lug with a free end and a non-free end. The respective non-free end of a respective lug is positioned in relation to the radial direction of the rotational axis of the torsional vibration damper radially inside the free end of the respective lug. | 06-04-2009 |
20090139817 | Torque converter having an integrated cover with bearing support - A torque converter including a cover, the cover having an axis and having an axially extending flange about the axis, the flange defining an aperture, a pilot fitted within the aperture, and a turbine hub connected to the flange. | 06-04-2009 |
20090139818 | Torque converter - In sliding engagement of a clutch plate of a lock-up clutch with a front cover of a converter housing, with a difference in rotational speed therebetween, the sum of the urging force of a coil spring and the force of a lock-up discharge hydraulic pressure in a front side chamber is greater than the force of a lock-up engagement pressure in a rear side chamber. A selector valve member, accommodated in a valve chamber of a displacement selector mechanism, therefore, brings an oil chamber between the clutch plate (first piston) and a second piston into communication with the front side chamber. The hydraulic pressure of the rear side chamber received by a rear face of the piston is higher than hydraulic pressure of the oil chamber received by a front face of the piston and, therefore, the piston is displaced forwardly into frictional contact with the clutch plate and transmission of judder to an input shaft of a speed change mechanism is thereby reduced. | 06-04-2009 |
20090139819 | Torque converter with connector plate for a clutch plate and arc spring - A torque converter including a lock up clutch, the lock up clutch including a piston and a clutch plate, a spring, and a connector plate, the connector plate connecting to the clutch plate at a connection and drivingly engaged with the spring at a spring engagement, the connection to the clutch plate being radially outside of the spring engagement. | 06-04-2009 |
20090139820 | Power transmission device and method of assembly of a damper configuration in a power transmission device - A power transmission device for configuration in a drive train between a prime mover and a power take-off with a hub element forming an output and a damper configuration connected upstream of the output, including at least two dampers disposed in radial direction offset relative to one another and coupled with one another—a first damper forming a main damper stage and a second internal damper—wherein the second internal damper is coupled with the hub. | 06-04-2009 |
20090139821 | Hydrodynamic torque converter and method for producing the same - In a hydrodynamic torque converter having a turbine shell and a torsion damper spring carrier jointly mounted to a carrier part by way of rivets extending through aligned openings in the turbine shell and the spring carrier, rivets with rivet shanks and a rivet heads are inserted through the aligned openings and welded to the carrier part by pairs of electrodes by which the rivets are pressed into contact with the carrier part while a welding current is generated from one to the other of the pair of welding electrodes through the respective rivets and the carrier part. | 06-04-2009 |
20090145712 | Power transmission mechanism - A power transmission mechanism for transmitting power between a driving engine and an output drive, including: an input and an output; a hydrodynamic component with a pump wheel and a turbine wheel; an apparatus for at least partially bridging over the hydrodynamic component, the apparatus including a control device with a piston element that is chargeable with pressurizing agent; and means for influencing the difference in speeds of rotation of moving fluids on both sides of the piston element, the means including an influencing element that is rotatable in rotational synchronicity with the piston element, which extends outward in the radial direction free of any direct connection with the piston element, and which is situated in the radial direction at least in the range of the outside diameter, forming at least part of an axial space with the piston element. | 06-11-2009 |
20090152066 | Torsional Vibration Damper and Hydrodynamic Torque Converter Device for an Automotive Drive Train - The invention relates to a torsional vibration damper ( | 06-18-2009 |
20090152067 | Double overlap backing plate attachment - A torque converter having a transverse axis of rotation, a cover having an inner diameter and an inner annular surface, an impeller shell having an inner diameter and an inner annular surface, and an annular backing plate having an outer diameter and an outer annular surface, wherein the cover, impeller shell, and backing plate are operatively arranged to rotate about the axis of rotation, wherein the backing plate is substantially orthogonal with respect to the axis of rotation, wherein the inner diameter of the cover is substantially equal to the inner diameter of the impeller shell, and wherein the inner annular surface of the cover and the inner annular surface of the impeller shell are fixedly attached to the outer annular surface of the backing plate. | 06-18-2009 |
20090152068 | Anti-rotation mechanism for a closed piston torque converter - A piston plate anti-rotate mechanism in a closed piston, three passage torque converter including a cover having an inner radial surface, a drive plate comprising an annular plate, a piston plate having an axial inner crown, a front annular edge, an axial skirt, and a back annular edge, wherein the cover, drive plate, and piston plate are operatively arranged to rotate about a transverse axis of rotation, and wherein the piston plate is attached to the cover or the drive plate such that the piston plate is axially moveable and rotationally immovable relative to the cover. In some embodiment, the present invention further includes a leaf spring attaching the piston plate to the cover or the drive plate, such that the piston plate is axially moveable and rotationally immovable relative to the cover. | 06-18-2009 |
20090159387 | Ratchet one way clutch with hardened blocking plate - A one-way clutch, including: a first annular element; a second annular element arranged to lockingly engage with the first element for relative rotation of the second element, with respect to the first annular element, in a first rotational direction; a third annular element at least partly rotatable about the axis and axially disposed between the first and second elements; and a fourth annular element at least partly rotatable about the axis and including a radially disposed body and an axial protrusion extending from the body and connected to the third element. The axial protrusion forms a portion of a space arranged to at least partially enclose fluid to dampen energy associated with the locking engagement of the first and second annular elements, and the first or second element is axially disposed between the third and fourth elements. | 06-25-2009 |
20090159388 | CLUTCH ARRANGEMENT WITH A CLUTCH DRIVE - A clutch arrangement includes a clutch device for transmitting torque between a clutch housing and a takeoff, wherein a pressure element and an opposing pressure element cooperate to establish and release a working connection between at least one drive-side clutch element and at least one takeoff side clutch element. The opposing pressure element is mounted nonrotatably and without freedom of axial movement on the clutch housing, and is connected to at least one drive-side clutch element by axially acting energy storage devices. A takeoff-side clutch element is located between a drive-side clutch element and the opposing pressure element, and between any adjacent drive-side clutch elements. Alternatively, the axially acting energy storage devices can connect the drive-side clutch elements to the clutch housing. | 06-25-2009 |
20090183962 | LOCK-UP DEVICE - The lock-up device includes a piston, an output rotary member, a plurality of elastic members, a support member, and a retaining plate. The piston is supported rotatably with respect to the input rotary member and movably in the axial direction. The elastic members elastically link the piston and the output rotary member in the rotational direction. The support member has an outer peripheral support component to support the outer peripheral side of the elastic members. The retaining plate has a fixed component that is fixed to the piston, and a radial support component that supports the outer peripheral support component in the radial direction. | 07-23-2009 |
20090205916 | Torque converter rurbine side bearing centering and retention on the stator - A torque converter, including: a washer for a thrust bearing, the washer including a first circumferential surface facing radially outward; a stator hub with a second circumferential surface facing radially inward and free of an interlocking engagement with the first circumferential surface; and a shell for a turbine, the shell including a third circumferential surface facing radially inward. The washer is radially inwardly retained by contact between the first circumferential surface and the second or third circumferential surface. In a preferred embodiment, the washer is radially centered by contact between the first circumferential surface and the second or third circumferential surface. In another preferred embodiment, the hub includes at least one radially inwardly extending protrusion and the washer is retainable in an axial direction by the at least one protrusion. | 08-20-2009 |
20090229938 | TORQUE TRANSMISSION DEVICE - A torque transmission device, in particular in the drive train of a motor vehicle, with a hydrodynamic torque converter ( | 09-17-2009 |
20090266665 | Hydrodynamic torque converter - A hydrodynamic torque converter having a housing which may be connected or is connectable torque proof to a drive unit and which has a converter cover to which is fastened a hub in which, radially at the inside, an end of a transmission input shaft is arranged in a rotatable fashion and on which, radially at the outside, a piston of a converter bypass clutch is mounted in an axially movable and if appropriate rotatable fashion is provided. The hub may be caulked with the converter cover. | 10-29-2009 |
20090283377 | DRUG DELIVERY PUMP DRIVE USING A SHAPED MEMORY ALLOY WIRE - A pump drive and a method thereof to dispense a liquid drug from a container having a plunger piston are disclosed. The pump drive provides a unidirectional clutch provided about a rotational axis which supports centrally a wheel. The clutch has an inner race operably connected to the plunger piston, wherein the clutch is configured to rotate both the inner race about the axis in unison with rotation of the wheel in only a first direction to advance the plunger piston, and to let the wheel rotate relative to the inner race about the axis in a second direction opposite to the first direction without advancing the piston plunger. The drive in one embodiment includes at least one shape memory alloy wire which when excited rotates the wheel in the first rotational direction to advance the piston plunger and dispense the liquid drug from the container. | 11-19-2009 |
20090283378 | WET CLUTCH - A wet clutch and to a hydrodynamic torque converter with a respective wet clutch as converter lockup clutch. In order to provide a good response of the wet clutch, the support elements for the friction surfaces and for the opposite friction surfaces of the wet clutch are axially supported relative to one another, at least over a partial portion of the actuation travel of the wet clutch. | 11-19-2009 |
20090314597 | Hydrodynamic Coupling - The invention relates to a hydrodynamic coupling having two blade wheels, namely, an outer wheel and an inner wheel. The hydrodynamic coupling also has a coupling shell. The invention provides that the inner wheel and the coupling shell each have one hole and the holes are situated on the hydrodynamic coupling and can be moved into positions that are aligned with one another when the inner wheel and the coupling shell are rotated. The hole of the coupling shell is larger than the hole of the inner wheel. A measuring pin for passing through the two holes. | 12-24-2009 |
20090314598 | HYDRODYNAMIC CLUTCH - A hydrodynamic clutch includes an impeller and a turbine wheel which jointly form a toroidal working chamber that is or can be filled with a working medium. A throttle plate is provided which can be moved in the axial direction of the hydrodynamic clutch in order to be optionally introduced into the working chamber and/or be displaced within the working chamber. The throttle plate extends in the area of a central diameter of the working chamber in the circumferential direction of the hydrodynamic clutch. The intake end of the throttle plate extends parallel or substantially parallel to the axis of rotation of the hydrodynamic clutch from the perspective of an axial section across the hydrodynamic clutch, the working medium flowing against the intake end of the throttle plate in a circular flow. The throttle plate can be moved from an inactive position in which the same has no or only a slight throttling effect on the circular flow of the working medium in the working chamber into an active position in which the same has a comparatively much greater throttling effect on the circular flow, the inactive position being located in the area of the separation gap between the impeller and the turbine wheel. From the perspective of an axial section across the hydrodynamic clutch, the working chamber covers the entire area, without having a center that is delimited relative to the remaining working chamber by way of a wall, such that the throttle plate is directly enclosed by the flow zone of the working chamber in both the active and inactive position of the throttle plate without mounting a wall therebetween. | 12-24-2009 |
20090321206 | FORCE TRANSMISSION DEVICE - A force transmission device having a hydrodynamic component, disposed between an input and an output, comprising at least a pump shell and a turbine shell, forming an operating cavity in combination, with an actuatable clutch device for at least partially bridging the hydrodynamic component, comprising a clutch component for at least partially bridging the hydrodynamic component, comprising a first clutch component connected with the input and a second clutch component at least indirectly connected to the output, which can be brought into operative engagement with one another through an actuation device, with a vibration absorber disposed in the force flow at least subsequent to the actuatable clutch device, with a housing coupled with the input or with an element coupled non-rotatably to the input and coupled with the pump shell. | 12-31-2009 |
20100018822 | Lock-up clutch hydraulic pressure supply appratus - A lock-up control valve ( | 01-28-2010 |
20100038201 | COMBINED POWER TRANSMISSION, DRIVE UNIT AND DRIVE TRAIN FOR A HYBRID SYSTEM - A combined power transmission and drive unit for the application in drive trains in hybrid systems with at least two prime movers that can be coupled via a power transmission unit with a consumer, in particular transmission. Between a first prime mover and the power transmission unit, a device is provided for connecting/disconnecting the power flow between the latter and the power transmission unit, including a friction clutch that can be actuated by a pressure medium, including a first clutch part and a second clutch part which can be brought in active connection with one another via a servo unit featuring a piston element that can be pressurized by a pressure medium. A combined power transmission and drive unit according to the invention, wherein the means are provided for controlling a rotation speed difference of a flow medium on either face side of a piston element. | 02-18-2010 |
20100044176 | FORCE TRANSMISSION DEVICE - A force transmission device ( | 02-25-2010 |
20100059324 | Coupling Arrangement, Particularly for a Hydrodynamic Coupling Device - A coupling arrangement, particularly for a hydrodynamic coupling device, including a first friction surface arrangement that is rotatable around an axis of rotation with a housing filled with fluid, a second friction surface arrangement, which is rotatable around the axis of rotation with a driven member, and a pressing arrangement that is actuated by pressure fluid. The first friction surface arrangement and the second friction surface arrangement are brought into frictional engagement by the pressing arrangement. The pressing arrangement includes an annular piston element that is movable in its radial inner area in a fluid-tight manner in direction of the axis of rotation on a guide disk element which is secured to an inner side of the housing. | 03-11-2010 |
20100072014 | TWO PIECE IMPELLER HUB FOR HYBRID TORQUE CONVERTER - An impeller hub assembly including a first portion connected to a rotor for an electric motor, a second portion connected to an impeller shell of a torque converter, and a rotary shaft seal for hydraulically sealing at least one of the first and second portions of the impeller hub assembly to a housing for the torque converter. The assembly may further include a dynamic seal, a hydraulic chamber at least partially enclosed by the rotary shaft seal and the dynamic seal, and a hydraulic channel in fluid communication with the chamber. In some example embodiments of the invention, the hydraulic channel is for lowering pressure in the chamber by providing a discharge path for fluid in the chamber. | 03-25-2010 |
20100084237 | Enhanced Pressure Balancing of an Oil Pump Rotor for an Automatic Transmission - A transmission includes a torque converter and an oil pump for providing fluid. The transmission has a stator shaft and a torque converter hub mounted on the stator shaft, defining an annular chamber between the stator shaft and the torque converter hub. A pump rotor for the oil pump is mounted on the torque converter hub. The torque converter hub extends beyond the pump rotor to fluidly seal the pump rotor from the annular chamber between the torque converter hub and the stator shaft. | 04-08-2010 |
20100084238 | POWER TRANSMISSION DEVICE - A power transmission device for power transmission between an engine and a power output, comprising at least an input and an output, a hydrodynamic component with an impeller- and a turbine wheel and a device for partially bypassing at least the hydrodynamic component with a servo unit featuring a piston element that can be pressurized with hydraulic medium and having means for influencing the circulation rate difference of flow media on both sides of the piston element, wherein the means comprises rotary synchronism with the piston element of the servo unit, a further rotatable piston element disposed in axial direction with a spacing from the piston element of the servo unit. | 04-08-2010 |
20100096231 | Wet-Running Clutch Arrangement - A wet clutch arrangement, particularly a wet plate clutch or lockup clutch including a first friction face formation coupled with a housing arrangement for rotation around an axis of rotation and a second friction face formation coupled with an output member for rotation around the axis of rotation, and a preferably ring-shaped pressing piston. The pressing piston, together with the housing arrangement, defines a pressure fluid space and is movable in direction of the axis of rotation through a change in fluid pressure in the pressure fluid space for influencing the frictional interaction between the friction face formations. An operant fluid application surface of the pressing piston is in the range of 15000 mm | 04-22-2010 |
20100126816 | HYDRAULIC CONTROL DEVICE FOR TORQUE CONVERTER WITH LOCK-UP CLUTCH - A control section determines a driving state of a vehicle and controls first and second solenoid valves on the basis of the determined driving state. An oil passage length of a second oil discharge passage is shorter than that of a first oil discharge passage and a discharge end of the second oil discharge passage is opened at a lower position than that of the first oil discharge passage. The control section derives hydraulic oil, discharged from an oil chamber via a first shift valve, to the first oil discharge passage by means of a second shift valve when it is determined that the driving state is one during normal driving. The control section derives the hydraulic oil to the second oil discharge passage by means of the second shift valve when it is determined that the driving state is one required for rapid lock-up off. | 05-27-2010 |
20100230225 | FLUID COUPLING AND COUPLING METHOD THEREOF - In a fluid coupling wherein a turbine shell is welded to a turbine hub, it is necessary to take care of the strength of the welded portion because the turbine shell is displaced toward the pump blade as the torque thereof is transmitted. A fluid coupling ( | 09-16-2010 |
20100276243 | HYDROKINETIC COUPLING DEVICE COMPRISING A LOCK-UP CLUTCH EQUIPPED WITH ELASTIC MEANS OF CIRCUMERENTIAL PRELOAD - A hydrokinetic coupling device includes a lock-up clutch having at least one friction disc mounted such that it can slide axially with respect to a first rotary shaft, at least one first backing disc rotating as one with a secondary rotary shaft and a support ring to support the backing disc. The support ring has at least one axial groove circumferentially delineated by an upstream face and by a downstream face. A radial guide tooth of each backing disc is housed such that it can slide axially in the groove. Elastic preload elements are provided which are able to exert a preload torque to clamp the guide tooth of each braking disc circumferentially against one of either the upstream or downstream faces of the guide groove. | 11-04-2010 |
20100282558 | HYDRAULIC CONTROL DEVICE OF LOCKUP CLUTCH - A hydraulic control device for a lockup clutch prevents stagnation and accumulation of air bubbles in a torque converter when a vehicle is at a stop at low oil temperature, preventing impairment of vehicle drive performance caused by insufficient transmission torque at the time of start of the vehicle. It occurs sometimes that air-mixed hydraulic oil is supplied into a torque converter from a second oil path when a vehicle is at a stop, with a transmission set to a drive range such as a D range, at a low oil temperature in a time, for example, immediately after an engine is started. In such a case, when a lockup clutch is disengaged, in which a second line hydraulic pressure is supplied from the second oil path to the lockup clutch, a third oil path is interrupted (closed) to prohibit discharge of the hydraulic oil. As a result, despite large pipe path resistance due to low viscosity, the hydraulic oil in the torque converter is reliably discharged from a first oil path to an oil cooler via a cooler oil path. Thus, air bubbles in the torque converter are reduced with the discharge of the hydraulic oil. | 11-11-2010 |
20110005880 | SEALING PLUG FOR A TORQUE CONVERTER - The present invention is a torque converter having three sealed chambers in which a piston for engaging and disengaging a lock-up clutch is attached to the torque converter using a plurality of leaf springs. The assembly includes a plurality of access or pass-through holes for effecting the attachment of the leaf spring to the cover using rivets. Also included is plurality of plugs to seal the pass-through holes. Also presented is a method of using the plugs to prevent uncontrolled leakage from one sealed chamber to another. | 01-13-2011 |
20110011690 | HYDRAULIC PRESSURE CONTROL APPARATUS FOR TORQUE CONVERTER - A hydraulic pressure control apparatus for a torque converter, the torque converter including a pump impeller configured to rotate, a turbine runner configured to rotate in response to fluid transmitted from the pump impeller and a lock-up clutch adapted to directly connect the turbine runner to a power source, includes a control valve outputting a lock-up pressure for engaging the lock-up clutch by controlling a hydraulic pressure outputted by a hydraulic pressure source and a relay valve including a first switching portion for selectively allowing and interrupting a communication between the control valve and the lock-up clutch, wherein the relay valve interrupts the communication between the control valve and the lock-up clutch by means of the first switching portion when a value of the lock-up pressure outputted by the control valve is a predetermined value or more. | 01-20-2011 |
20110011691 | LOCKUP DEVICE - A lockup device has a piston, an input member, and a damper mechanism. The damper mechanism has a plurality of first elastic members, a plurality of second elastic members, an intermediate member, and an output member. The intermediate member supports the first and second elastic members such that the first and second elastic members operate in series and can undergo elastic deformation in a rotational direction. | 01-20-2011 |
20110031083 | LOCKUP DEVICE AND FLUID TYPE POWER TRANSMITTING DEVICE - The object of the invention is to provide a lockup device that can improve a fuel efficiency of a vehicle. The lockup device ( | 02-10-2011 |
20110067968 | HYDRAULIC APPARATUS FOR AUTOMATIC TRANSMISSION - In a hydraulic apparatus for an automatic transmission having a torque converter with a lockup clutch and CVT, there are provided a first control valve for controlling hydraulic pressure supply to the lockup clutch oil chamber, a first electromagnetic solenoid valve for controlling operation of the first control valve, a second control valve for controlling hydraulic pressure supply to the CVT pulleys, a second electromagnetic solenoid valve for controlling operation of the second control valve, a switching valve interposed between the oil chamber and the first control valve. In the apparatus, when detecting that the first control valve or first electromagnetic solenoid valve is failed and the lockup clutch is locked in engaged condition, current supply to the second electromagnetic solenoid valve is stopped so that it operates the switching valve to disengage the lockup clutch, thereby enabling to forcibly release the engagement without manipulation by the operator. | 03-24-2011 |
20110114432 | TORQUE CONVERTER APPARATUS - A torque converter apparatus includes a torque converter, a lock-up clutch arranged between the torque converter and an engine, and a lock-up damper arranged between the torque converter and the lock-up clutch and connected to the lock-up clutch, the lock-up damper including a plurality of springs arranged at multiple stages and separated from each other in a radial direction of the torque converter, the lock-up clutch including an outer hub and an inner hub, the outer hub extending toward the lock-up damper and supporting one of first and second frictional engagement members engageable with each other, the outer hub extending toward a first space formed between the plurality of springs in the radial direction, the inner hub extending toward the engine and supporting the other of the first and second frictional engagement members. | 05-19-2011 |
20110114433 | TORQUE CONVERTER APPARATUS - A torque converter apparatus includes a torque converter having a torus-shaped element, and an impeller clutch transmitting and disconnecting a driving force of an engine to and from an input element of the torque converter, the impeller clutch arranged at a radially outward side of the torus-shaped element of the torque converter. | 05-19-2011 |
20110120829 | TWO-PIECE FLOW SEPARATION HUB - A flow separation hub including a first hub component, a second hub component affixed to the first hub component, a first passage arranged through the first and second hub components for enabling a first fluid to flow through the flow separation hub, a second passage arranged through the first and second hub components for enabling a second fluid to flow through the hub, wherein the hub prohibits fluid communication between the first and second fluids when the first and second fluids flow through the hub. | 05-26-2011 |
20110139562 | CLUTCH APPARATUS - A clutch apparatus includes an input shaft having a bore portion extending in an axial direction thereof, a stator shaft formed in a cylindrical shape and provided so as to surround an outer circumferential surface of the input shaft, and a sleeve formed in a cylindrical shape and provided so as to surround an outer circumferential surface of the stator shaft, wherein the stator shaft includes an internal hydraulic passage, a clearance formed between an inner circumferential surface of the sleeve and the outer circumferential surface of the stator shaft serves as a first hydraulic passage, the internal hydraulic passage serves as a second hydraulic passage, a clearance formed between an inner circumferential surface of the stator shaft and the outer circumferential surface of the input shaft serves as a third hydraulic passage, and the bore portion of the input shaft serves as a fourth hydraulic passage. | 06-16-2011 |
20110192692 | HYDRODYNAMIC TORQUE CONVERTER - A hydrodynamic torque converter ( | 08-11-2011 |
20110240430 | Vehicle drive device - A drive device for a vehicle configured between an internal combustion engine and a wheel. The drive device includes a rotary electric machine, and an engagement device connecting the drive device to the engine by a fluid coupling using hydraulic pressure. A case houses at least a portion of the drive device and includes a support wall extending radially, and a cylindrical projecting portion projecting from the support wall toward a side in an axial second direction that is in a direction opposite to the axial first direction. The engagement device includes an operating oil pressure chamber supplied with the hydraulic pressure. A rotor member of the rotary electric machine is radially supported by the cylindrical projecting portion in a rotatable state via a support bearing. The cylindrical projecting portion is formed with an operating oil supply passage supplying oil to the operating oil pressure chamber. | 10-06-2011 |
20110240431 | Vehicle drive device - A rotary electric drive device for a vehicle configured to couple a combustion engine to a wheel. The drive device includes an engagement device selectively drivingly connecting the input member with the rotary electric machine and a fluid coupling. The engagement device includes a differential pressure generating chamber that receives oil supply so as to apply hydraulic pressure to a side of the pressing member opposite to a side to which hydraulic pressure for operation is applied. A body portion housing chamber housing a body portion of the fluid coupling and the differential pressure generating chamber are structured as oil chambers independent of each other. The drive device includes a coupling supply oil passage supplying oil to the body portion housing chamber and a differential pressure supply oil passage supplying the oil to the differential pressure generating chamber. | 10-06-2011 |
20110240432 | HYDRAULIC POWER TRANSMISSION - A hydraulic power transmission includes a pump impeller connected to an input member coupled to a prime mover, a turbine runner rotatable coaxially with the pump impeller, a damper mechanism having an input element, a resilient member engaged with the input element, an output element, and a lockup clutch capable of engaging the input member and the input element of the damper mechanism and releasing the engagement therebetween. The transmission also includes a dynamic damper configured in such a manner that oscillations transmitted to the input member when the input member and the input element of the damper mechanism are engaged by the lockup clutch are absorbed from the input element. | 10-06-2011 |
20120006642 | TORQUE CONVERTER WITH DEFLECTABLE SEAL - A torque converter assembly includes a cover for driving engagement with a prime mover, a piston plate including an annular surface for engaging a clutch, and a first seal disposed radially inward of the annular surface. In a lockup mode for the torque converter, the first seal blocks fluid flow through an orifice in the piston plate or between the cover and the piston plate and, in a release mode for the torque converter, the first seal is deflectable to enable a fluid flow through the orifice or between the cover and the piston plate and around the first seal. In an example embodiment, the torque converter assembly includes an apply chamber, the piston plate is displaceable in response to fluid pressure in the apply chamber, and the first seal is arranged to be deflected by the fluid pressure in the apply chamber. | 01-12-2012 |
20120018267 | RELEASE FLOW HUB - A hub assembly for a torque converter includes a hub with a circumferential groove and a seal arranged to contact an element of the torque converter. The seal is at least partially disposed in the groove. The groove has a first radial wall, a second radial wall axially offset with respect to the first radial wall, and at least one opening in the second radial wall. The seal is axially displaceable to seal against the first wall to block fluid flow between the hub and the element and to seal against the second radial wall and enable fluid flow through the opening. | 01-26-2012 |
20120073926 | PISTON SEAL WITH CENTERING WASHER - A torque converter, including: a piston plate for a lock-up clutch, the piston plate including a circumferential surface forming an opening axially aligned with an axis of rotation for the torque converter; a ring-shaped element fixedly secured to the piston plate; and a seal in compressive engagement with the circumferential surface, axially aligned with the ring-shaped element, and including a surface facing radially inward for forming a seal with an input shaft inserted into the torque converter. | 03-29-2012 |
20120090937 | MICRO-ELECTRO-MECHANICAL-SYSTEMS BASED HYDRAULIC CONTROL FOR A POWERTRAIN - A continuously variable transmission (CVT) for a vehicle includes a hydraulically-controlled component and a pilot valve. The pilot valve includes at least one micro-electrical-mechanical-systems (MEMS) based device. The pilot valve is operably connected to and is configured for actuating the hydraulically-controlled component. The pilot valve additionally includes a regulating valve operably connected to the pilot valve and to the hydraulically-controlled component. The regulating valve is configured to direct fluid to the hydraulically-controlled component when actuated by the pilot valve. | 04-19-2012 |
20120103742 | HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION - A hydraulic control device for an automatic transmission capable of adjusting the amount of lubricating oil in accordance with a load on a torque converter is provided. A main regulator valve regulates hydraulic oil from an oil pressure source on the basis of a stator reaction force of the torque converter to generate a line pressure for operating engagement of a frictional engagement element. A line pressure switching section switches the line pressure to a low line pressure in a region in which a higher line pressure is not required in response to a driving state of a vehicle, and switches the line pressure to a high line pressure when a target value of an engagement hydraulic oil pressure exceeds a predetermined pressure. A lubricating regulator valve is provided in a lubricating oil passage connected from the main regulator valve to regulate a hydraulic pressure in the lubricating oil passage to a given pressure in response to a driving state of the vehicle. A torque converter regulator valve controls a pressure inside the torque converter. A lubricating shift valve switches between an oil passage for supplying hydraulic oil discharged from the torque converter into the lubricating oil passage and an oil passage for discharging lubricating oil discharged from the torque converter regulator valve. | 05-03-2012 |
20120118694 | Method For The Operation Of An Open 3-Line Type Hydrodynamic Coupling Device - A method for operating an open 3-line type hydrodynamic coupling device, in which a fluid pressure displacing a clutch piston in an engaging direction is provided in the first space area for engaging the lockup clutch, and a fluid pressure displacing the clutch piston in the disengaging direction is provided in a second space area for disengaging the lockup clutch. A fluid supply pressure for the first space area and/or a fluid supply pressure for the second space area are/is adjusted depending on at least one operating variable in the engaged state of the lockup clutch and/or in the disengaged state of the lockup clutch and/or for engaging the lockup clutch and/or for disengaging the lockup clutch. | 05-17-2012 |
20120152679 | ANTI ROTATION DEVICE - A buckling prevention device including a first rotational element, a second rotational element, a leaf spring arranged for transferring torque between the first and second rotational elements while enabling relative axial movement between the first rotational element and the second rotational element, a connection member fixedly connecting the leaf spring to the second rotational element, wherein the connection member extends axially through a hole in the first rotational element, wherein a gap is formed between the connection member and an edge of the hole when the leaf spring is not experiencing an overly high compression force, and wherein the connection member is operatively arranged to close the gap and engage with the first member when the spring is experiencing an overly high compression force for preventing the leaf spring from buckling and at least partially transferring the torque directly between the first and second rotational elements. | 06-21-2012 |
20120152680 | MODIFIED FRICTION MEMBER FOR BALANCED UNIT LOADING - A clutch including a first member having a first friction surface, wherein the first friction surface has an inner diameter and an outer diameter, a second member having a second friction surface, wherein at least one of the first or second members is moveable axially for engaging the first friction surface with the second friction surface for closing the clutch, wherein the first member is thinner in a first area approximately radially aligned with the first inner diameter, the first outer diameter, or both, than in a second area radially aligned with a portion of the first friction surface generally located radially between the first inner diameter and the first outer diameter. | 06-21-2012 |
20120152681 | CLUTCH RETAINER SEALED TO COVER - An assembly for a torque converter including a first component, a second component non-rotatably secured to the first component by a connection member, wherein a seal is arranged between the first and second components, and the connect member extends through the seal, and wherein the seal is made from a cellulose-based material, wherein the first and second components at least partially define a first chamber and a second chamber, and wherein the seal separates the first chamber from the second chamber in a substantially fluid-tight seal manner. | 06-21-2012 |
20120205212 | Torque Transmission Arrangement, Particularly A Hydrodynamic Torque Converter - A torque transmission arrangement includes a housing arrangement which is drivable for rotation around an axis of rotation and a clutch arrangement in the torque transmission path between the housing arrangement and a driven member. The clutch arrangement has a first friction surface formation, which is rotatable with the housing arrangement and a second friction surface formation, which is rotatable with the driven member, and a clutch piston, which is movable axially for producing and canceling a frictional engagement of the first friction surface formation with the second friction surface formation. A piston carrying element, which is connected in a substantially fluid-tight manner to the clutch piston on the radially inner side, permits an axial movement of the clutch piston. The piston carrying element is produced substantially in its entirety from plastic material. | 08-16-2012 |
20120241272 | HYDRAULIC CONTROL DEVICE - A hydraulic control device controls a hydraulic pressure in an engagement side oil chamber defined on one side of a piston that configures a hydraulic clutch, and a hydraulic pressure in a back-pressure side oil chamber defined on the other side of the piston. The hydraulic control device includes a line pressure generating valve that generates a line pressure by adjusting a hydraulic pressure from an oil pump; a secondary pressure generating valve that generates a secondary pressure, which is a hydraulic pressure supplied to the back-pressure side oil chamber, by adjusting a hydraulic pressure from the line pressure generating valve so as to be lower than the line pressure; and a clutch engagement pressure generating valve that generates a clutch engagement pressure, which is a hydraulic pressure supplied to the engagement side oil chamber, by adjusting the line pressure from the line pressure generating valve. | 09-27-2012 |
20120241273 | LOCKUP DEVICE FOR TORQUE CONVERTER - The lockup device includes a piston that is coupled to a front cover, a drive plate coupled to the piston, a plurality of outer peripheral-side torsion springs to which torque is inputted from the drive plate, and a float member that is arranged on the turbine side of the outer peripheral-side torsion springs and serves to make two of the outer peripheral-side torsion springs operate in series The float member has a main body portion and an inner peripheral support portion. The main body portion covers an outer peripheral portion and a turbine-side side portion of the outer peripheral-side torsion springs. The inner peripheral support portion extends from the main body section toward an inner periphery and supported on an output side of the intermediate member. | 09-27-2012 |
20120255825 | LOCK-UP CLUTCH MECHANISM - Disclosed is a lock-up clutch mechanism which is simple in construction but can increase the rigidity and the heat capacity of the lock-up piston, can lighten the lock-up piston, can suppress the temperature of a second sliding surface from being raised to enhance the heat resistance of the second friction member. The lock-up clutch mechanism is provided with a connecting member for connecting a lock-up piston with a center plate of a damper mechanism. The connecting member has a drum portion extending in the axial direction of an input shaft and splined to the radially outer peripheral portion of a center plate, and a hollow disc plate portion integrally connected with the axial end portion of the drum portion and radially inwardly extending from the axial end portion of the drum portion. The hollow disc plate portion is further in face-to-face relationship with the sliding surface of the lock-up piston across the lock-up piston. | 10-11-2012 |
20120285782 | FLUID TRANSMITTING DEVICE WITH LOCK-UP CLUTCH - In a fluid transmitting device with a lock-up clutch, each second transmitting claw is formed of: a base portion having a long side arranged in a peripheral direction of a turbine impeller and a short side arranged axially of the turbine impeller; and a claw portion protruding from an intermediate portion of one of long-side portions of the base portion and being inserted between adjacent damper springs, and each short-side portion of the base portion is fixed to the turbine impeller through a weld. A long-side portion of the base portion not welded to the turbine impeller includes a cutout, facilitating bend of the long-side portion when transmitting torque through the second transmitting claw, at opposite sides of the claw portion. This improves engine output performance by relaxing stress concentration at spots where the second claws are welded to a turbine impeller without increasing the thicknesses of the claws. | 11-15-2012 |
20130037368 | Torque Transmission Arrangement, Particularly Hydrodynamic Torque Converter - A torque transmission includes a housing arrangement drivable around an axis of rotation and filled with fluid and a clutch arrangement between the housing arrangement and a driven member. The clutch arrangement has a first friction surface formation rotatable with the housing arrangement and a second friction surface formation rotatable with the driven member. A clutch piston is movable axially for producing and canceling frictional engagement of the first and the second friction surface formation. A piston carrying element is connected to the clutch piston on the radially inner side for axial movement of the clutch piston. The piston carrying element has in its radially inner end region a first axial supporting area for axially supporting the driven member at the piston carrying element and a second axial supporting area for supporting the piston carrying element at the housing arrangement. | 02-14-2013 |
20130056319 | TORQUE CONVERTER CLUTCH WITH LOW BACK PRESSURE - A torque converter includes an impeller shell and a backing plate defining at least a portion of a first hydraulic chamber, a cover and a piston plate defining at least a portion of a second hydraulic chamber, and a third hydraulic chamber. The third chamber is sealed from the first and second hydraulic chambers such that a hydraulic flow between the third chamber and the other chambers is at least restricted. In an example embodiment, the first chamber is for being pressurized to prevent cavitation in the turbine, stator, or impeller, the second or third chamber is for being pressurized to engage the lockup clutch, and the other of the second or third chamber is for being de-pressurized to reduce a back pressure on the lockup clutch piston plate. | 03-07-2013 |
20130146412 | WORK VEHICLE - A work vehicle has a hydraulic pump and a transmission. The transmission includes a transmission body having a cylindrical input shaft, a torque converter body, a lock-up clutch device, a pump drive shaft, and an oil channel. The lock-up clutch device includes a piston, an oil chamber formed at a back surface of the piston, and a clutch portion. The pump drive shaft penetrates the input shaft and is disposed coaxially to the input shaft. The pump drive shaft transmits driving power to the hydraulic pump. The oil channel is formed between an inner circumference surface of the input shaft and an outer circumference surface of the pump drive shaft, and communicates with the oil chamber in the lock-up clutch device. | 06-13-2013 |
20130175131 | TORQUE CONVERTER - A torque converter includes, in a case coupled to an output shaft of an engine, a torus formed from a pump, a turbine and a stator having a one-way clutch on the inside thereof, and a lock-up clutch. In addition, in this torque converter, a fluid from a pump is introduced from a space between a stator shaft (F | 07-11-2013 |
20130248312 | THRUST ACTIVATED FRICTION ONE-WAY CLUTCH - A torque converter, including: a cover; a pump fixedly secured to the cover; an axially displaceable turbine hydraulically coupled to the pump; and an axially displaceable stator at least partially disposed between the pump and the turbine and including a friction clutch with a plurality of clutch plates and respective friction material disposed between the plurality of clutch plates. | 09-26-2013 |
20130256075 | LOCK-UP CLUTCH ASSEMBLY HAVING IMPROVED TORQUE CAPACITY - A lock-up clutch assembly for a torque converter includes a clutch housing defining an annular clutch chamber, and an annular piston received in the clutch chamber and extending between the inner diameter and outer diameter of the clutch chamber. The piston defines inner and outer diameters associated respectively with the inner and outer diameters of the clutch chamber. The assembly further includes a backing plate received in the clutch chamber, and at least one annular friction disk and at least one annular friction plate received in the clutch chamber between the piston and the backing plate. The assembly further includes first and second seal members configured to provide respective fluid seals between the inner diameters of the piston and clutch chamber and between the outer diameters of the piston and clutch chamber. | 10-03-2013 |
20130306423 | VEHICLE POWER TRANSMISSION DEVICE - It is provided a vehicle power transmission device having a torque converter and a power transmission mechanism in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, and a stator disposed with a stator blade disposed between the pump blades and the turbine blades, the power transmission mechanism transmitting power input to an input shaft from the torque converter to a subsequent stage, within a circulation flow passage allowing circulation of fluid in the torque converter, a circulation outward passage allowing the fluid to flow toward the inside of the torque converter at the time of the circulation being made up of a gap between the input shaft of the power transmission mechanism and a tubular stator shaft coupled via a one way clutch to the stator, and the stator shaft being concentric with the input shaft and has a diameter larger than the input shaft, the torque converter including a lockup clutch selectively coupling the input-side rotating member to the output-side rotating member, the lockup clutch having a release-side chamber consisting of a portion of the circulation outward passage and having an inner pressure increased by supply of the fluid when the lockup clutch is released, the lockup clutch being disposed on a side opposite to the stator shaft relative to the output-side rotating member, the circulation outward passage including a through-hole penetrating the output-side rotating member in an axial center direction of the torque converter to be in communication with a gap between the input shaft of the power transmission mechanism and the stator shaft, and a gap in the axial center direction between the stator and the output-side rotating member being oil-tightly sealed on an outer circumferential side of the through-hole. | 11-21-2013 |
20140027231 | STARTING DEVICE - A lockup clutch mechanism of a hydraulic transmission device includes a lockup piston that is capable of moving toward a front cover to press first and second friction plates, and a flange member that together with the lockup piston defines an engagement-side oil chamber. The front cover and the lockup piston define a first lubricant passage that supplies hydraulic oil to the first and second friction plates. A second lubricant passage communicating with the first lubricant passage is formed in a centerpiece of the front cover. A first shaft oil passage communicating with the engagement-side oil chamber and a second shaft oil passage communicating with the second lubricant passage are formed in an input shaft. | 01-30-2014 |
20140034436 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device is a device disposed in a space produced between a front cover and a turbine in a torque converter so as to mechanically connect the front cover and the turbine, and includes a clutch part and a release part. The clutch part is disposed in a power transmission path from the front cover to the turbine, and is configured to be in a clutch-on state of transmitting a power from the front cover to the turbine in a set posture. The release part is configured to be actuated by means of a hydraulic pressure, turn the clutch part of the clutch-on state into a clutch-off state, and block transmission of the power from the front cover to the turbine. | 02-06-2014 |
20140076680 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device includes a piston, a clutch part, a first hydraulic chamber, a second hydraulic chamber, a first hydraulic port and a second hydraulic port. The first hydraulic chamber is formed between a front cover and the piston, and the operating oil for actuating the piston is supplied thereto. The second hydraulic chamber is formed independently from the first hydraulic chamber on the same side as the first hydraulic chamber with reference to the piston, and the operating oil for actuating the piston is supplied thereto. The first hydraulic port supplies the operating oil to the first hydraulic chamber. The second hydraulic port is provided independently from the first hydraulic port, and supplies the operating oil to the second hydraulic chamber. | 03-20-2014 |
20140090943 | SEALED PLATE FOR A CLUTCH AND METHOD THEREOF - A clutch for a torque converter, including: a piston axially displaceable to open and close the clutch; and a seal plate engaged with the piston and including: a main portion radially located between inner and outer circumferences of the seal plate and having a first thickness in an axial direction; and a seal retaining portion extending radially inward or outward from the main portion and including: first and second walls extending axially beyond the main portion; a weld fixedly connecting the first wall to the main portion; and a slot at least partially formed by the first and second walls and opening radially inward or radially outward. The slot is arranged to accept a seal element. The seal element is arranged to seal the seal plate to a cover for a torque converter or to a component fixedly secured to a cover for a torque converter. | 04-03-2014 |
20140097056 | HYDRAULIC CONTROL APPARATUS FOR HYDRAULIC TORQUE CONVERTER - A hydraulic control apparatus may be provided with a lock-up clutch operated or not by hydraulic pressure difference between an engagement-side oil chamber and a disengagement-side oil chamber and may include a first hydraulic line supplying hydraulic pressure to the disengagement-side oil chamber or exhausting the hydraulic pressure from the disengagement-side oil chamber, a second hydraulic line supplying hydraulic pressure to the engagement-side oil chamber or exhausting the hydraulic pressure from the engagement-side oil chamber, and a third hydraulic line connected to a slip switch valve, and selectively exhausting through the slip switch valve the hydraulic pressure supplied to the engagement-side oil chamber. | 04-10-2014 |
20140097057 | CONTROL DEVICE FOR VEHICULAR LOCKUP CLUTCH - A control device for a vehicular lockup clutch, including a lockup clutch that directly connects an input rotation member and an output rotation member of a hydraulic transmission device constituting part of a power transmission path between an engine and drive wheels, a linear solenoid valve that controls an engagement hydraulic pressure for engaging and actuating the lockup clutch, and a controller that is configured to perform a flexible start control for slip-engaging the lockup clutch when a vehicle starts moving, and to perform, before starting the flexible start control, a precharge control for establishing a standby state in which a predetermined preparation pressure is indicated to the linear solenoid valve. | 04-10-2014 |
20140124319 | Torque Converter for Motor Vehicle - A vehicle transmission torque converter assembly, having: an engine output shaft; a turbine; and a transmission input shaft linkable to either the engine output shaft or turbine via a lock-up clutch. The lock-up clutch is configured to sustain the transmission input shaft being: (i) coupled to the engine output shaft; (ii) coupled to the turbine; or (iii) decoupled. | 05-08-2014 |
20140144742 | TORQUE CONVERTER DEVICE FOR A MOTOR VEHICLE - In a torque converter device for a motor vehicle having a single-piece housing element which, for drivingly interconnecting a torque converter and an internal combustion engine, wherein the housing element forms a disk carrier accommodating at least one disk of a separating clutch which is provided for mechanically connecting and disconnecting the internal combustion engine to and from the torque converter device, the housing element is provided with at least one actuating piston receptacle forming a pressure chamber with an actuating piston disposed therein for actuating the separating clutch. | 05-29-2014 |
20140151177 | DEVICE FOR ACTUATING A FRICTIONAL CONVERTER LOCK-UP CLUTCH OF A HYDRODYNAMIC TORQUE CONVERTER - A device for actuating a frictional converter lock-up clutch of a hydrodynamic torque converter. A piston of the lock-up clutch can be acted upon by pressure of a inner chamber of a converter that acts in the engaging direction of the lock-up clutch and by pressure of a piston chamber delimited by the piston that acts in the disengaging direction. At least in the disengaging operating condition of the lock-up clutch, the piston space is connected to the inner chamber of the converter. The inner chamber can be supplied with hydraulic fluid via a first line. Hydraulic fluid can be discharged from the inner chamber via a second line. The piston chamber of the lock-up clutch can be connected to a pressurized zone and to an essentially unpressurized zone. By varying the pressure in the piston chamber, the device can modulate the transmission capacity of the lock-up clutch. | 06-05-2014 |
20140216880 | TORQUE CONVERTER WITH DEFLECTABLE SEAL - A torque converter assembly comprises: a cover for driving engagement with a prime mover; a piston plate including an annular surface for engaging a clutch; and, a sealing plate comprising a substantially radial wall arranged between the cover and the piston plate and disposed radially inward of the annular surface, wherein: in a lockup mode for the torque converter, the sealing plate blocks fluid flow between the cover and the piston plate; and, in a release mode for the torque converter, the sealing plate is deflectable to enable a fluid flow between the cover and the piston plate via a pathway between the cover and the sealing plate. | 08-07-2014 |
20140231204 | TORQUE CONVERTER LOCK-UP DEVICE - The lock-up device includes a piston, a drive plate, a plurality of radial outer side torsion springs, a float member, a driven plate, a plurality of radial inner side torsion springs and an intermediate member. The float member is rotatable relative to the drive plate and causes the radial outer side torsion springs to act in series. The intermediate member is rotatable relative to the drive plate and the driven plate, and transmits torque from the radial outer side torsion springs to the radial inner side torsion springs. | 08-21-2014 |
20140251745 | LUBRICATING OIL SUPPLY DEVICE - A lubricating oil supply device that supplies hydraulic oil used to actuate a vehicle's transmission. The supply device configured with a pump that generates a hydraulic pressure, and a line pressure generation valve that discharges a part of the hydraulic pressure from the pump as a discharge pressure to generate a line pressure for actuating the transmission. A signal pressure output valve that outputs a signal pressure for actuating the line pressure generation valve in accordance with at least a throttle operation amount or torque input to the transmission. Furthermore, a switching valve that is actuated by the signal pressure from the signal pressure output valve and that supplies lubricating oil input to an input port to the object to be lubricated from an output port with a flow rate of the lubricating oil changed. | 09-11-2014 |
20140262666 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device includes a clutch part and a damper mechanism. The clutch part includes a clutch input member, a clutch output member, a drive plate, a driven plate, a second flange and a piston. The second flange is mounted between a front cover and an inner peripheral part of a turbine to be axially immovable with respect to the front cover, and forms a lock-up oil chamber. The piston is mounted between the front cover and the second flange, forms a lock-up oil chamber together with the second flange therebetween, and is configured to be moved toward the front cover by an operating oil to be supplied to the lock-up oil chamber. | 09-18-2014 |
20140339042 | TORQUE CONVERTER - A torque converter includes a front cover, an impeller, a turbine and a stator. The impeller includes an impeller shell coupled to the front cover, a plurality of impeller blades disposed inside the impeller shell, and an impeller hub. The impeller hub is formed in an axially extending tubular shape, while being fixed at an engine-side end part thereof to the inner peripheral part of the impeller shell by means of friction welding. The impeller hub also has a burr produced by the friction welding. | 11-20-2014 |
20140367214 | LOCKUP CLUTCH MODULATION SYSTEM AND METHOD - A torque converter includes an input connected to an engine. An output is connected with a transmission. A lockup clutch is connected with the output and is disposed to engage the input to couple the input with the output via an apply pressure corresponding to a target lockup strategy based on at least one vehicle operating condition. A pressure regulator is configured to modulate the apply pressure. Systems and methods are disclosed. | 12-18-2014 |
20150008086 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device includes a clutch portion and a damper mechanism. The clutch portion includes a clutch output member, a clutch plate, an oil chamber plate having a disc shape and a piston. The oil chamber plate is disposed between a front cover and an inner peripheral part of a turbine, while being axially immovable with respect to the front cover. The piston is disposed between the front cover and the oil chamber plate while being axially movable. The piston forms a first oil chamber for lock-up actuation together with the oil chamber plate, and forms a second oil chamber for lock-up releasing together with the front cover. | 01-08-2015 |
20150021137 | TWO PASS MULTI-FUNCTION TORQUE CONVERTER - A torque converter, including: a cover; an impeller including an impeller blade, and an impeller shell with a first surface extending beyond the impeller blade in a radial direction and at an acute angle with respect to a first line in the radial direction; a turbine including a turbine blade, and a turbine shell with a second surface axially aligned with the first surface and at the acute angle with respect to the first line; a turbine clutch including the first and second surfaces and friction material disposed between the first and second surfaces; a torus at least partially enclosed by the impeller and turbine shells; and a pressure chamber at least partially formed by the turbine shell and the cover. For torque converter mode, the turbine and the impeller are independently rotatably with respect to each other. For lock-up mode, the first and second surfaces are non-rotatably connected. | 01-22-2015 |
20150308553 | TORQUE CONVERTER DRIVE ASSEMBLY INCLUDING SPRING RETAINER RIVETED TO TURBINE SHELL - A drive assembly for a torque converter is provided. The drive assembly includes a turbine including a turbine shell and a plurality of turbine blades; and a spring retainer riveted to the turbine shell by at least one rivet. A torque converter for a motor vehicle drive train is also provided that includes the drive assembly and an impeller, with the turbine shell being axially slidable against the impeller to operate as a piston of a lock-up clutch of the torque converter. Further, a method of forming a drive assembly for a torque converter is provided that includes riveting a spring retainer to a turbine shell. | 10-29-2015 |
20150323041 | STARTING DEVICE - In a starting device including a centrifugal-pendulum vibration absorbing device, while lock-up is released, a flow of working oil directed from a lock-up piston side toward a damper mechanism is produced in a clutch engagement chamber. A thrust force in the axial direction directed from the lock-up piston toward the damper mechanism is applied to a weight, of a mass body of the centrifugal-pendulum vibration absorbing device, disposed on the lock-up piston side. A support member of the centrifugal-pendulum vibration absorbing device is provided with weight support protrusions that project in the axial direction of an input shaft of a speed change device toward the weight disposed on the lock-up piston side. | 11-12-2015 |
20150337935 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device for a torque converter includes a piston, a clutch part, a first hydraulic chamber, a second hydraulic chamber, a first hydraulic port and a second hydraulic port. The first hydraulic chamber is formed on a piston side of the front cover. The second hydraulic chamber is formed independently from the first hydraulic chamber. The first hydraulic port is in communication with the first hydraulic chamber. The second hydraulic port is formed independently from the first hydraulic port, and a portion of the second hydraulic chamber is in communication with the second hydraulic port. The first hydraulic chamber is sealed with the exception of a portion of the first hydraulic chamber that is in communication with the first hydraulic port. The second hydraulic chamber is sealed with the exception of the portion of the second hydraulic chamber that is in communication with the second hydraulic port. | 11-26-2015 |
20150345604 | LOCKUP CLUTCH FOR A TORQUE CONVERTER - A torque converter for a powered vehicle, the torque converter including a cover coupled to an engine, and a piston moveably coupled to the cover to define a lockup cavity. The torque converter includes a converter cavity and an exhaust valve coupled to the converter cavity is configured to exhaust the converter cavity and lockup cavity of oil when the powered vehicle is placed in neutral or in park. A passage located in the cover enables oil located in the lockup cavity to move to the converter cavity to substantially eliminate oil located in the lockup cavity when the powered vehicle is placed in neutral or in park. | 12-03-2015 |
20150354684 | TORQUE CONVERTER IN VEHICLE - Disclosed is a torque converter in a vehicle, which permits putting a lock-up clutch into operation while sufficiently attenuating vibration at all rotation speed ranges of a low rotation speed range to a high rotation speed range of an engine. | 12-10-2015 |
20150362041 | TORSIONAL VIBRATION DAMPER FOR HYDROKINETIC TORQUE COUPLING DEVICE - A torsional vibration damper of a hydrokinetic torque coupling device, comprises a driven plate rotatable about a rotation axis, an intermediate plate rotatably mounted about the driven plate coaxially with the rotation axis, a back plate rotatably mounted about the intermediate plate coaxially with the rotation axis, a plurality of circumferentially acting elastic members interposed between the driven plate and the intermediate plate, and a damper retainer plate non-moveably secured to the back plate coaxially with the rotation axis. The damper retainer plate is operatively connected to the elastic members. The driven plate, the intermediate plate and the back plate are aligned with each other along a radial axis perpendicular to said rotation axis. | 12-17-2015 |
20160003335 | CIRCUIT FOR CONTROLLING HYDRAULIC PRESSURE OF TORQUE CONVERTER - A circuit for controlling hydraulic pressure of a torque converter that includes an engagement hydraulic pressure chamber independently installed in a fluid operation chamber enclosed by a front cover and an impeller and having engagement hydraulic pressure supplied to engage a lock-up clutch may include a torque converter control valve stably decreasing line pressure and supplying the decreased line pressure as operation hydraulic pressure of the torque converter, a torque converter pressure control valve controlled by a linear solenoid valve to control D range pressure and supply the controlled D range pressure to the engagement hydraulic pressure chamber, and a lock-up switch valve controlled by the linear solenoid valve to supply the hydraulic pressure supplied from the torque converter control valve as control pressure of the torque converter pressure control valve and supply exhaust hydraulic pressure of the torque converter as control pressure of the torque converter control valve. | 01-07-2016 |
20160017970 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device is a device disposed in a space produced between a front cover and a turbine in a torque converter so as to mechanically connect the front cover and the turbine, and includes a clutch part and a release part. The clutch part is disposed in a power transmission path from the front cover to the turbine, and is configured to be in a clutch-on state of transmitting a power from the front cover to the turbine in a set posture. The release part is configured to be actuated by means of a hydraulic pressure, turn the clutch part of the clutch-on state into a clutch-off state, and block transmission of the power from the front cover to the turbine. | 01-21-2016 |
20160017971 | TORQUE CONVERTER CLUTCH WITH REDUCED BACK PRESSURE - A torque converter comprising: an axis of rotation; a first seal at a first radial distance relative to the axis of rotation; a second seal at a second radial distance relative to the axis of rotation; an impeller shell and a balancing plate defining at least a portion of a first hydraulic chamber; a piston plate sealed via the first seal to the balancing plate defining at least a portion of a second hydraulic chamber; a cover sealed to the piston plate via the second seal defining at least a portion of a third hydraulic chamber. A clutch plate is radially outward relative to the balancing plate. The sealing arrangement, effective at preventing drift-on or drift-off of the clutch due to dynamic pressure, features a first radial distance that is the same or equal to the second radial distance. | 01-21-2016 |
20160017988 | CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION - In an apparatus for controlling an automatic transmission connected to a prime mover mounted on a vehicle, having a torque converter equipped with a lock-up clutch, when predetermined operating conditions of the vehicle are satisfied at drive-off, a lock-up clutch engaging circuit is formed through a hydraulic supply circuit. Next it is determined whether engage-position sticking malfunction of the lock-up clutch has occurred based on a ratio of an input rotational speed of the automatic transmission relative to an output rotational speed of the prime mover and a change rate of the output rotational speed of the prime mover when the lock-up clutch engaging circuit has been formed, and fail-safe control is then implement when the sticking is determined. | 01-21-2016 |
20160017989 | CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION - In an apparatus for controlling an automatic transmission connected to a prime mover mounted on a vehicle, having a torque converter equipped with a lock-up clutch, when the automatic transmission is gear-shifted to a predetermined gear at deceleration of the vehicle and it is determined that predetermined operating conditions of the vehicle are satisfied, a lock-up clutch engaging circuit is formed through a hydraulic supply circuit. Next it is determined whether engage-position sticking malfunction of the lock-up clutch has occurred based on a ratio of an input rotational speed of the automatic transmission relative to an output rotational speed of the prime mover when the lock-up clutch engaging circuit has been formed, and fail-safe control is then implement when the sticking is determined. | 01-21-2016 |
20160033023 | Power Transmission Device for Vehicle - A lockup device ( | 02-04-2016 |
20160102743 | HYDROKINETIC TORQUE COUPLING DEVICE WITH TURBINE-PISTON LOCK-UP CLUTCH AND BEVEL GEARING - A hydrokinetic torque coupling device for coupling together a driving shaft and a driven shaft. The torque coupling device includes a casing rotatable about a rotational axis and having a casing cover shell and an impeller shell, an impeller coaxial aligned with the rotational axis and including the impeller shell, a turbine-piston coaxially aligned with and drivable by the impeller, a stator situated between the impeller and the turbine-piston, an output member including an output bevel gear, a torsional vibration damper operatively connecting the turbine-piston and the output hub, a rotatable input bevel gear drivenly connected to the torsional vibration damper, a carrier configured to connect to a stationary stator shaft, and a bevel pinion supported by and rotatable relative to the carrier. The bevel pinion meshes with gear teeth of the input bevel gear and gear teeth of the output bevel gear of the output member. | 04-14-2016 |
20160109012 | LOCK-UP DEVICE FOR TORQUE CONVERTER - A lock-up device is disposed between a front cover and a turbine in a torque converter to mechanically connect the front cover and the turbine. The lock-up device includes a clutch part and a release part. The clutch part is disposed in a power transmission path from the front cover to the turbine and is configured to be in a clutch-on state of transmitting a power from the front cover to the turbine in a set posture. The release part is configured to be actuated by a hydraulic pressure being increased in a space on a turbine-side of the piston to turn the clutch part from the clutch-on state to a clutch-off state and to block transmission of the power from the front cover to the turbine. | 04-21-2016 |
20160116037 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device features a casing including an impeller shell, a casing shell, and an intermediate casing component connecting the impeller and casing shells. The intermediate casing component includes a casing wall portion and a piston engagement portion extending inward from and being non-rotatable relative to the casing wall portion. The device further features an impeller including the impeller shell. The turbine-piston is coaxially aligned with and hydrodynamically drivable by the impeller, and includes a turbine-piston shell having a turbine-piston flange with an engagement surface that is movable axially toward and away from an engagement surface of the piston engagement portion to position the hydrokinetic torque coupling device respectively into and out of a lockup mode. | 04-28-2016 |
20160116038 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCK-UP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device features a casing including a casing shell and an impeller casing shell, an impeller including the impeller shell, a turbine-piston including a turbine-piston shell, and a restriction element. The turbine-piston shell includes a turbine-piston flange and partitions the interior volume of the casing into two chambers. The turbine-piston flange has an engagement surface movable axially toward and away from an engagement surface of a piston engagement portion of the impeller shell to position the hydrokinetic torque coupling device into and out of a lockup mode. The restriction element is configured to restrict fluid flow and create a pressure drop between the first and second chambers. | 04-28-2016 |
20160116039 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH AND INTERMEDIATE CLUTCH COMPONENT, AND RELATED METHODS - A hydrokinetic torque coupling device features an impeller including an impeller shell, a casing shell connected to the impeller shell to establish a casing with a first engagement surface, a turbine-piston including an axially movable turbine-piston shell, and an annular intermediate clutch component affixed to the turbine-piston shell and including a lockup portion. The lockup portion has a second engagement surface that is movable axially toward and away from the first engagement surface to position the hydrokinetic torque coupling device into and out of a lockup mode. | 04-28-2016 |
20160116040 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH WITH DRIVE-CLUTCH COMPONENT, AND RELATED METHOD - A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a damper assembly, a turbine-piston and a drive-clutch component non-moveably attached to the turbine-piston and having a second engagement surface. The turbine-piston is axially displaceable relative to the casing to move the second engagement surface axially towards and away from the first engagement surface for positioning the hydrokinetic torque coupling device respectively into and out of a lockup mode in which the first and second engagement surfaces frictionally interlock with one another to mechanically lock the casing non-rotatably relative to the input part of the damper assembly. The drive-clutch component is configured to engage and rotationally drive a torsional vibration damper. | 04-28-2016 |
20160116041 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH WITH LOCKUP RESISTANCE MEMBER - A torque converter includes an impeller, a turbine-piston hydrodynamically drivable by the impeller, and an annular lockup resistance member. The impeller includes an impeller shell. The turbine-piston includes a turbine-piston shell having a turbine-piston flange with a first flange surface facing an engagement surface of the impeller shell and an opposite second flange surface. The turbine-piston is movable axially toward and away from the engagement surface to position the torque converter into and out of a lockup mode in which the turbine-piston flange is mechanically locked to the impeller shell. The annular lockup resistance member is coaxially aligned with the rotational axis, fixedly connected and non-rotatable relative to the turbine-piston flange, and configured to resist axial movement of the turbine-piston flange toward the engagement surface and into lockup with the impeller shell. | 04-28-2016 |
20160116042 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH WITH FLOW RESTRICTOR, AND RELATED METHODS - A torque converter features an impeller including an impeller shell and impeller blades, a turbine-piston including a turbine-piston shell and turbine blades, and a restrictor. The turbine-piston shell is axially displaceable relative to the impeller shell to position the torque converter (or a hydrokinetic torque coupling device containing the torque converter) into and out of lockup mode. The restrictor positioned radially outward of the impeller blades and the turbine blades at an opening of a fluid passage connecting the torus chamber to an environment outside the torque converter. | 04-28-2016 |
20160116044 | TORQUE CONVERTER HAVING VARIABLE PITCH STATOR AND BYPASS CLUTCH - A transmission includes a torque converter stator with controllable blade angle. A controller adjust the blades by commanding fluid pressures in hydraulic circuits routed to the stator hub. The controller also adjust the torque capacity of a torque converter bypass clutch by commanding fluid pressures in hydraulic circuits routed to apply and release chambers. Various schemes are presented to multiplex hydraulic circuits to serve multiple functions. | 04-28-2016 |
20160131239 | STATOR CONE CLUTCH - A torque converter, including: a cover arranged to receive torque; an impeller including an impeller shell non-rotatably connected to the cover; a turbine in fluid communication with the impeller and including a turbine shell; a stator at least partially located between the impeller and the turbine; and including a body portion with at least one stator blade and a first frusto-conical surface; a stator cone clutch including the first frusto-conical surface and a flange including a second frusto-conical surface; and a first thrust bearing axially disposed between the stator cone clutch and the impeller shell. In a stator locked mode: the body portion and the flange are non-rotatably connected; and the stator cone clutch is arranged to urge the first thrust bearing against the impeller shell in a first axial direction. | 05-12-2016 |
20160160971 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device features an impeller including an impeller shell and impeller blades, and a turbine-piston including a turbine-piston shell and turbine blades. The turbine-piston is movable axially toward and away from the impeller shell to position the torque converter (or a hydrokinetic torque coupling device containing the torque converter) into and out of lockup mode. | 06-09-2016 |
20160160972 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH WITH LOCKUP RESISTANCE MEMBER - A torque converter includes an impeller, a turbine-piston hydrodynamically drivable by the impeller, a stator, and an annular lockup resistance member. The impeller includes an impeller shell. The turbine-piston includes a turbine-piston shell. The turbine-piston shell includes a turbine-piston flange having a first flange surface facing an engagement surface of the impeller shell. The turbine-piston is movable axially toward and away from the engagement surface to position the torque converter into and out of a lockup mode in which the turbine-piston flange is mechanically locked to the impeller shell. The annular lockup resistance member is in the form of an annular elastomeric sandwich washer coaxially aligned with the rotational axis and including turbine-side and stator-side members, and an elastomeric inner member sandwiched between the turbine-side and stator-side members. | 06-09-2016 |
20160160973 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a turbine-piston hydrodynamically drivable by the impeller, and a biasing device. The turbine-piston is hydrodynamically drivable by the impeller and includes a turbine-piston shell having a second engagement surface facing the first engagement surface. The turbine-piston is axially displaceable relative to the impeller between a hydrodynamic transmission mode and a lockup mode. The biasing device is configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode. The axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially away from the lockup mode. | 06-09-2016 |
20160160974 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a turbine-piston hydrodynamically drivable by the impeller, and a bearing device. The turbine-piston is axially displaceable into and out of a lockup mode. The bearing device includes a non-axially oriented spring and a substantially incompressible rolling member urged by the spring against an oblique contact surface associated with the turbine-piston to thereby exert a variable axial force against the turbine-piston shell for biasing the turbine-piston out of the lockup mode. The variable axial force exerted by the bearing device against the turbine-piston shell decreases as the turbine-piston is axially displaced towards the lockup mode. | 06-09-2016 |
20160160975 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A torque converter is provided that includes an impeller having an impeller shell with a first surface, an axially displaceable turbine-piston hydrodynamically drivable by the impeller and including a turbine-piston shell and a turbine-piston flange with a second surface, and a clutch plate interposed between and axially displaceable relative to at least one of the first and second surfaces. The turbine-piston is axially movable relative to the impeller to move the second surface of the turbine-piston flange towards and away from the first surface for positioning the torque converter into and out of a lockup mode in which the first and second surfaces and the clutch plate surfaces frictionally interlock with one another so that the impeller is mechanically locked to and non-rotatable relative to the turbine-piston. | 06-09-2016 |
20160160976 | HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque coupling device features an impeller, a casing having a first engagement surface, a damper assembly, a turbine-piston including a drive component with a second engagement surface, and a clutch plate having clutch plate engagement surfaces interposed between and axially movable relative to at least one of the first and second clutch plate engagement surfaces. The turbine-piston is axially displaceable relative to the casing to move the second engagement surface axially towards and away from the first engagement surface for positioning the hydrokinetic torque coupling device into and out of a lockup mode in which the first and second engagement surfaces and the clutch plate engagement surfaces frictionally interlock with one another to non-rotatably lock the casing relative to the input part of the damper assembly. | 06-09-2016 |
20160160977 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING CORE LOCKUP CLUTCH, AND RELATED METHODS - A hydrokinetic torque converter includes an impeller, an axially displaceable turbine piston, and impeller and turbine-piston lockup clutch core plates. The impeller lockup clutch core plate is situated between the impeller shell and the turbine-piston shell, is connected to an impeller core ring, and has a first surface. The turbine-piston lockup clutch core plate is situated between the impeller shell and the turbine-piston shell, is connected to a turbine-piston core ring, and is axially displaceable with the turbine-piston to move a second surface of the turbine-piston lockup clutch core plate axially towards and away from the first surface for positioning the torque converter respectively into and out of a lockup mode in which the turbine-piston is mechanically interlocked to the impeller. | 06-09-2016 |
20160160978 | TORQUE CONVERTER AND HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCKUP CLUTCH, AND RELATED METHODS - A hydrodynamic torque coupling device with lockup clutch is provided that includes an impeller, an axially displaceable turbine-piston, and a stop feature. The turbine-piston includes a turbine-piston shell and a turbine-piston flange. The turbine-piston is axially displaceable relative to the impeller to move an engagement surface region of the turbine-piston towards and away from an engagement surface region of the impeller for positioning the torque converter respectively into and out of a lockup mode. When the turbine-piston is out of the lockup mode, a fluid passageway connecting a torus chamber to a damper chamber extends between the engagement surface regions and between flow restriction surface regions of the turbine-piston and impeller. At a maximum axial displacement position out of lockup mode, a gap between the engagement surface regions is greater than a gap between the flow restriction surface regions. | 06-09-2016 |
20160178042 | TORQUE CONVERTER CLUTCH WITH LOW BACK PRESSURE | 06-23-2016 |
20160377159 | Clutch Device With A Friction Transmission Element - A clutch device has a friction transmission element which has a base with at least one friction surface, at least one control element for acting on a damping device, and at least one radial support which cooperates with a stop and has a plurality of lugs which extend at least substantially radially in direction toward the stop and which are at least substantially brought closer to the stop up to a gap before the stop when the friction transmission element is stationary, while, at speed, at least a portion of the lugs comes in contact with the stop. The lugs are connected to the base via a bend which causes an axial offset with respect to the base, the bend allows a displacement of the lugs in direction toward the energy accumulators, and the lugs are completely covered by the stop in an axial extension direction. | 12-29-2016 |
20180023633 | CLUTCH PLATE ASSEMBLY WITH FRICTION MATERIAL FLAP | 01-25-2018 |