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clutch  device  direction  drive  includes  member  piston  plate  portion  pressure  shaft  side  spring  torque  transmission 
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Multi-Plate Brake or Clutch

Thu, 23 Feb 2017 08:00:00 EST

Multi-plate brake or clutch includes a carrier, a fluid dispensing device and plurality of friction plates located around the carrier and the fluid dispensing device. The carrier includes a carrier body, a plurality of external splines located around a rim of the carrier body extending outwardly from the rim, and a passageway that extends through the carrier body to a passageway outlet. The fluid dispensing device includes a body defining a reservoir with an opening in fluid communication with the passageway outlet to allow fluid to be dispensed when a volume of fluid in the reservoir exceeds a predetermined volume.



DEVICE FOR THE AUTOMATIC DISENGAGEMENT OF A CLUTCH IN AN ENGINE, CLUTCH AND GEARBOX SYSTEM

Thu, 23 Feb 2017 08:00:00 EST

The device (10) is associated to a multidisk clutch (1) for motor vehicles, and allows the automatic disengagement thereof in the deceleration and/or braking initial phase, before that the driver operates the clutch lever (1) for downshifting. The device (10) includes a ramped plate (11) connected to the transmission, which features front cam profiles (110) adapted to actuate oscillating rocker arms (13), arranged inside a drum (5) provided in the clutch (1), when a back torque is generated by the drive wheel of the vehicle, during the deceleration and/or braking step. The rocker arms (13) rotate simultaneously from an inoperative position (N) to an operative position (H), causing the pusher plate (9) to move away with a reduction of the pressure exerted on the sets of friction rings (4, 7), which, therefore, can slip with respect to one another. This avoids abnormal blockages of the rear wheel and improves the drivability and curving of the motor vehicle.



DRIVING FORCE TRANSMISSION DEVICE

Thu, 23 Feb 2017 08:00:00 EST

A driving force transmission device includes: a clutch unit that connects and disconnects input and output shafts to and from each other; an annular electromagnet disposed so that it can rotate relative to a shaft body portion included in the input shaft; a rotor that faces one side in the axial direction of the electromagnet; an armature that faces one side in the axial direction of the rotor, that is disposed so that it can move in the axial direction, and that moves in the axial direction to engage and disengage the clutch unit; an internally threaded portion that is formed on the inner periphery of the rotor and engages with an externally threaded portion formed on the outer periphery of the shaft body portion; and a second elastic member that elastically presses the rotor screw-fitted on the outer periphery of the shaft body portion toward the electromagnet.



DUAL PISTON ACTUATOR

Thu, 23 Feb 2017 08:00:00 EST

An actuator assembly can include a housing, first and second pistons, and spring. The housing can include first and second cylinders disposed about an axis. The first piston and cylinder can define a first chamber in fluid communication with an inlet. The second piston and cylinder can define a second chamber in fluid communication with an outlet. Opposite ends of the spring can be coupled for axial translation with the first and second piston, respectively. The spring can translate the first piston to provide high volume, low pressure fluid to the outlet when a pressure in the first chamber is less than a predetermined pressure. When the pressure in the first chamber is equal to, or greater than, the predetermined pressure and the second piston is translated in the first axial direction, the spring can compress and the second piston can provide low volume, high pressure fluid to the outlet.



AUTOMOTIVE DRIVELINE COMPONENT WITH SHIPPING CAP

Thu, 23 Feb 2017 08:00:00 EST

An automotive driveline component has a housing and a shipping cap. The automotive driveline component can be a component of a power transfer unit (PTU), a final drive unit (FDU), a rear drive module (RDM), or a drive shaft. The housing has a wall that partly or more defines an opening. The opening is open to an exterior of the housing when the automotive driveline component is in an uninstalled state. The shipping cap can be temporarily secured in the opening. The shipping cap has a liquid collector for precluding residual lubricant in the housing from pooling at the opening. The liquid collector can be in the form of a sump, an absorbent material, or both.



BEARING ARRANGEMENT FOR AN INTERMEDIATE SHAFT IN A DECOUPLING CLUTCH FOR A HYBRID MODULE, HAVING SEPARATE AXIAL AND RADIAL SUPPORT

Thu, 23 Feb 2017 08:00:00 EST

The invention relates to a decoupling clutch for a hybrid module of a motor vehicle, having an intermediate shaft which is drivable by a crankshaft, a clutch disk which is connected non-rotatingly to the intermediate shaft, a counter-pressure plate which is connectible to a transmission input shaft, which counter-pressure plate is connected non-rotatingly to the clutch disk at least when the decoupling clutch is in the engaged position, a first roller bearing which supports the intermediate shaft at least radially, and a carrier element which is prepared for radial support of a rotor of an electric motor, wherein the first roller bearing is arranged nested radially between a supporting section of the carrier element and an external circumferential surface of the intermediate shaft, as well as a hybrid module having such a decoupling clutch.



TORQUE TRANSMISSION DEVICE FOR A HYBRID VEHICLE

Thu, 23 Feb 2017 08:00:00 EST

The invention relates to a torque transmission device that is to be arranged in a drive train of a hybrid vehicle having an internal combustion engine, a transmission and an electric machine, the electric machine being arranged in the torque transmission device. The torque transmission device includes a disconnect clutch with clutch actuation, for decoupling the internal combustion engine from the transmission, and a primary torsional vibration damper on the crankshaft side. The invention has a secondary torsional vibration damper arranged on the transmission side, radially and axially inside the rotor and directly on the transmission-side output flange of the torque transmission device. This allows the installation space for the crankshaft-side primary torsional vibration damper to be increased, such that the damper can be optimally designed. In torque transmission devices which originally have no secondary damper, the design of the primary damper can be smaller and more compact since the secondary damper supports the vibration damping. Since the secondary damper is arranged inside the rotor of the electric machine and directly on the transmission-side output flange of the torque transmission device, this damper requires only minimal or no additional installation space. This leaves surplus installation space which can be used, for example, to reduce the size of the torque transmission device, in particular to axially shorten it, or be used to increase the size of the electric machine.



TORQUE TRANSMITTING SYSTEM WITH TORSIONAL VIBRATION ABSORPTION FOR A POWERTRAIN

Thu, 16 Feb 2017 08:00:00 EST

A system for absorbing vibration and transmitting torque from a rotating power source to a rotatable load includes a rotatable driving member configured as an input to be driven by the power source. The system also includes a rotatable driven member configured to be driven by the driving member via a fluid coupling of the driven member to the driving member. The system also has a rotatable component configured as an output to drive the load, and a centrifugal pendulum absorber attached to the rotatable component. A first resilient member connects the driven member to the rotatable component.



TORSIONAL VIBRATION ABSORPTION SYSTEM

Thu, 16 Feb 2017 08:00:00 EST

A system for absorbing vibration and transmitting torque from a rotating power source to a rotatable load includes a rotatable driving member configured as an input to be driven by the power source to rotate about an axis of rotation. The system has a cam plate with a cam surface. A spring is configured to extend lengthwise in a radial direction relative to the axis of rotation. The spring is configured to be compressed due to the cam surface during relative rotation of the driving member and a driven member when the cam plate is operatively connected to rotate in unison with said one of the driving member and the driven member. The spring therefore has an effective spring rate dependent upon the cam surface, compression of the spring absorbs torsional vibration of the driving member, and the cam plate.



SWITCHABLE ONE WAY CLUTCH INCLUDING SELECTOR BRACKET

Thu, 16 Feb 2017 08:00:00 EST

A selector bracket assembly for a one way clutch assembly comprising an annular body portion having: first and second radial surfaces; an inner circumferential surface, connecting the first and second radial surfaces; at least one cutout portion; at least one axially extending post adjacent to the at least one cutout portion; and, an outer circumferential surface including a plurality of radially outward extending tabs; and, at least one actuator pin disposed radially outward of the inner circumferential surface and arranged for engagement with the selector bracket assembly to lock a one way clutch. A switchable one way clutch assembly having said selector bracket, or at least two selector brackets for making selectable the following states: free wheel or locked in both the first and second opposing circumferential directions; locked in first and free wheel in second circumferential direction; and, free wheel in first and locked in second circumferential direction.



Hydraulic System of a Transmission with a Plurality of Pressure Regulating Valves

Thu, 16 Feb 2017 08:00:00 EST

A hydraulic system (1) of a transmission (2) with a multiple number of pressure control valves (62 to 29) is described, in the area of which an applied pressure (p_sys) can be adjusted to a pressure level to be set downstream as a function of a total force component acting on a valve slide depending on the operating state. The total force component is adjusted as a function of a pilot force component that can be applied to the valve slide, an actuating force component and a control force component that exists as a function of the pressure level prevailing downstream. The pilot force component and the actuating force component can each be applied with equal effect in the direction of a first end position of the valve slide of a pressure control valve (62 to 29) on the valve slide, in which the area upstream of the pressure control valve (62 to 29) is connected to the area downstream of the pressure control valve (62 to 29) by means of the pressure control valve, while the pressure downstream of the pressure control valve (62 to 29) of the pilot force component and the actuating force component can be applied with counteracting effect and in the direction of a second end position of the valve slide on the valve slide, in which the area downstream of the pressure control valve (62 to 29) is connected to a low-pressure area (71).



FRICTION CLUTCH DEVICE

Thu, 16 Feb 2017 08:00:00 EST

A friction clutch for a drive train of a motor vehicle driven by an internal combustion engine. The clutch includes a rotatable shaft, a housing, at least one first clutch plate, at least one second clutch plate that is movable axially to a limited extent relative to the at least one first clutch plate to actuate the clutch. An actuating device that has at least one lever that is pivotally-mounted on one of the clutch plates, and at least one bar one end of which is connected to the lever and an opposite end of which is connected by an articulated connection to a different clutch plate to improve the function of the clutch.



CAM MECHANISM

Thu, 16 Feb 2017 08:00:00 EST

A cam mechanism includes an input member and an output member and a second cam groove is provided on a surface of the output member. The cam mechanism is configured to sandwich a rolling element accommodated in the second cam groove. The second cam groove has; a first region provided such that an inclination angle, relative to a rotary surface, of a bottom face of the second cam groove on which the rolling element makes rolling contact at the time when a phase difference is not more than a predetermined amount, is increased; and a second region provided such that the inclination angle, relative to the rotary surface, of that bottom face of the second cam groove with which the rolling element makes rolling contact at the time when the phase difference is more than the predetermined amount, is smaller than a largest inclination angle in the first region.



SYNCHRONIZATION DEVICE AND SYNCHRONIZATION METHOD

Thu, 16 Feb 2017 08:00:00 EST

A synchronizing device for a manual transmission has a sliding sleeve (112) which includes an internal toothing with a plurality of sliding sleeve teeth (118), and a clutch body of a gear wheel, which has an external toothing with a plurality of clutch body teeth (120) into which the internal toothing of the sliding sleeve (112) can engage. There is provided a synchronizing unit which can block an axial movement of the sliding sleeve (112), wherein the clutch body teeth (120) are formed without meshing bevel at their axial tooth end (130) close to the sliding sleeve teeth (118). During the shifting operation the speeds of the sliding sleeve (112) and of the clutch body are adapted. There is built up an axial force (F) of the sliding sleeve against the clutch body and a speed difference between the sliding sleeve (112) and the clutch body is produced, so that the end faces (136, 134) of the sliding sleeve teeth (118) and the clutch body teeth (120) slide along each other, and the sliding sleeve teeth (118) finally are meshed between the clutch body teeth (120).



APPARATUS FOR ADJUSTING CLEARANCE OF CLUTCH CABLE FOR VEHICLE

Thu, 16 Feb 2017 08:00:00 EST

An apparatus for adjusting a clearance of a clutch cable for a vehicle is arranged to rotate a clutch pedal forward using an elastic force of a reverse return spring to allow a back surface of the clutch pedal be spaced apart from a pedal member, control a length of the clutch cable using a mechanical clearance adjusting mechanism, and secure a uniform gap between the pedal member and a back surface of the clutch pedal by adjusting the length of the clutch cable.



MULTIPLE PLATE CLUTCH

Thu, 16 Feb 2017 08:00:00 EST

In a multiple plate clutch having a main spring which is provided between a clutch center fixed in an axial direction and a pressure plate displaceable in the axial direction and presses plural clutch plates in a clutch engagement direction, and a lifter plate for lifting the pressure plate in a clutch release direction, a sub spring for urging the pressure plate in the clutch engagement direction through the lifter plate is provided between the clutch center and the lifter plate, and the lifter plate is lifted by a predetermined amount or more to cut off the urging force of the sub spring to the pressure plate.



OVERRUNNING DECOUPLER

Thu, 16 Feb 2017 08:00:00 EST

A decoupler having an input member, an output member and a combination one-way clutch and torsional isolator that couples the input and output members. The combination one-way clutch and torsional isolator includes a single helical coil spring. The decoupler being designed to provide torsional damping through a range of torque transmitted through the decoupler, the range including a maximum rate torque for the decoupler.



Drive Module For A Drive Train Of A Hybrid Vehicle

Thu, 16 Feb 2017 08:00:00 EST

Drive module (14) for a powertrain (10) of a hybrid vehicle, comprising a housing (20), a friction clutch (18) with a pressure plate (62) which is axially displaceable by means of an actuating arrangement (60), a clutch plate (66) and with a clutch disk arrangement (74) positioned therebetween, a hub (84), wherein this hub (84) is fixedly connected to the clutch disk arrangement (74), and an electric machine (16) which has a rotor (22) with a rotor carrier (24) and a stator (32) which is fixed at a stator carrier (34). The axial arrangement or alignment of the clutch disk arrangement (74) relative to the pressure plate (62) and clutch plate (66) is determined by an adjusting arrangement (92), wherein the adjusting arrangement (92) is functionally arranged between the hub (84) and a supporting element (90) which is axially fixed to the housing (20) of the drive module (14). In addition, a method for the assembly of a drive module (14) of this type is disclosed.



SELECTABLE ONE-WAY CLUTCH

Thu, 09 Feb 2017 08:00:00 EST

A selectable one-way clutch includes: a pocket plate; a notch plate; an annular selector plate; an arm; and an actuator. An operating shaft is configured to move the arm along a circumferential direction of the selector plate so as to move the arm to an engagement position and to a non-engagement position. The operating shaft includes a slope portion inclined relative to a direction of a tangential line to the outer circumference of the selector plate. The slope portion is configured to move the selector plate to a position farther apart from the notch plate in a case where the arm is located at the non-engagement position than a position from the notch plate in a case where the arm is located at the engagement position.



SPLIT TYPE CAGE, ONE-WAY CLUTCH AND JOINT FOR POWER-GENERATION DEVICE

Thu, 09 Feb 2017 08:00:00 EST

A split type cage includes: a pair of annular portions including recess portions formed on an inner periphery side at intervals in a circumferential direction; and a pillar portion which includes pillar end portions on both end sides in an axial direction and fitted in the recess portions, and on which a reaction toward an other side in the circumferential direction acts. The recess portion includes a wedge-shaped surface forming a wedge-shaped space, which becomes narrower in a radial direction toward the other side in the circumferential direction, between the wedge-shaped surface and an outer peripheral surface of an inner ring. The pillar end portion has a wedge shape in which a radial dimension decreases toward the other side in the circumferential direction, and includes a radial outside surface contacting the wedge-shaped surface and a radial inside surface contacting the outer peripheral surface of the inner ring.



COUPLING, DRIVE ASSEMBLY AND ASSOCIATED METHOD

Thu, 09 Feb 2017 08:00:00 EST

According to an embodiment of the invention, a drive coupling for connecting to a drive is provided. The drive coupling is adapted to removably couple a load to a power source. The drive coupling includes a body and a plurality of components. The components are operably interconnected with each other. The components have a first arrangement in which the components transmit torque from the power source to the load and a second arrangement in which the components transmit no significant torque from the power source to the load. A first of the plurality of components is adapted to translate along its center of rotation relative to a second of the plurality of components from a first position in which the components define the first arrangement to a second position in which the components define the second arrangement.



DEVICE FOR TRANSMITTING TORQUE

Thu, 02 Feb 2017 08:00:00 EST

A device for transmitting torque between an input side and an output side includes a hydrodynamic converter having a pump wheel that is connected to the input side and a turbine wheel that is coupled with the pump wheel hydrodynamically by a fluid, as well as a spring damper for coupling the turbine wheel with the output side and a centrifugal pendulum that is joined with one of the other elements in a torque-locked connection. In this case, only one spring damper is disposed in the flow of torque between the input side and the output side.



ELECTROMAGNETIC CLUTCH AND METHOD FOR MANUFACTURING SAME

Thu, 02 Feb 2017 08:00:00 EST

A coil housing has an inner ring, which is shaped into an annular form and is placed on an inner side of an electromagnetic coil in a radial direction of a rotational axis. A thermal fuse is placed on an inner side of a coil inner peripheral end of the electromagnetic coil in the radial direction, so that the thermal fuse can be placed in such a manner that the thermal fuse does not limit a length of the electromagnetic coil in a direction of the rotational axis by using a radial thickness of the inner ring that is indispensable as a part of a structure of a magnetic circuit. Thus, it is possible to sufficiently limit occurrence of limiting of a size of the electromagnetic coil that is caused by the placement of the thermal fuse.



DIRECTLY ACTUATABLE CLUTCH WITH VENTILATION GEOMETRY

Thu, 02 Feb 2017 08:00:00 EST

The invention relates to a friction clutch for a drivetrain of a motor vehicle, having a contact plate that is movable relative to a pressure plate and a clutch disk to engage and disengage the clutch, and having an actuating element that influences the contact plate displacement position and is non-rotatably connected to the contact plate. The actuating element has at least one fluid diverting section which, in an operating state of the clutch, introduces a cooling fluid into the interior of the clutch to cool the contact plate, pressure plate, and/or clutch disk. The actuating element is preferably designed as a rigid component and for a system consisting of such a friction clutch and a transmission bell housing.



SHIFTING DEVICE AND SHIFTING PAWL FOR A SHIFTING DEVICE

Thu, 02 Feb 2017 08:00:00 EST

The present invention relates to a shifting device for a gearing unit, in particular for a vehicle driven using muscle force. The shifting device has a shaft for the mounting of a multiplicity of idler gears. A multiplicity of pawls are assigned to the idler gears and are movably mounted on the shaft in order to connect the idler gears rotationally conjointly to the shaft in at least one direction of rotation. A camshaft is assigned to the pawls and is designed to set different gear-speed stages of the gearing unit, wherein the pawls are assigned in each case one actuating element which is mounted so as to be movable relative to the camshaft and relative to the respective pawl and which is designed to actuate the pawl for the purposes of setting the gear-speed stages.



CLUTCH CONTROL DEVICE FOR FOUR-WHEEL-DRIVE VEHICLE

Thu, 02 Feb 2017 08:00:00 EST

A vehicle clutch control device is provided for switching from a two-wheel drive traveling to a four-wheel drive traveling. The vehicle clutch control device includes a dog clutch that separates a rear wheel drive from a front wheel drive by releasing the dog clutch, an electronically controlled coupling that distributes a driving force of a transverse engine to left and right rear wheels in accordance with a clutch connection capacity, and a four-wheel drive control unit. The four-wheel drive control unit switches the drive mode to one of a disconnect two-wheel drive mode in which the dog clutch and the electronically controlled coupling are released, a connect four-wheel drive mode in which the dog clutch and the electronically controlled coupling are engaged, and a stand-by two-wheel drive mode in which the dog clutch is engaged while the electronically controlled coupling is released.



HYDROKINETIC TORQUE COUPLING DEVICE HAVING TURBINE-PISTON LOCK-UP CLUTCH, AND RELATED METHODS

Thu, 26 Jan 2017 08:00:00 EST

A hydrokinetic torque coupling device for coupling together a driving shaft and a driven shaft 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 an elastic element slidably engaging the turbine-piston and being connected to the casing. The elastic element is configured to bias the turbine-piston toward the impeller. The casing is rotatable about a rotational axis so that the impeller shell is disposed axially opposite to and fixedly connected to the casing shell. The turbine-piston is coaxially aligned with and hydro-dynamically drivable by the impeller.



TORQUE CONVERTER WITH A SELECTIVE PRESSURE ACTIVATED SEAL SYSTEM

Thu, 26 Jan 2017 08:00:00 EST

A cover arranged to receive torque from an engine; an impeller; a turbine; an output hub arranged to non-rotatably connect to an input shaft for a transmission; a lockup clutch including an axially displaceable piston plate and arranged to directly connect the cover to the output hub; and a seal system including a pilot portion including first and second channels and a secondary hub non-rotatably connected to the output hub and axially displaceable with respect to the output hub to control flow of pressurized fluid through the first and second channels, or non-rotatably connected to the pilot portion and axially displaceable with respect to the pilot portion to control flow of pressurized fluid through the first and second channels.



ONE-WAY CLUTCH

Thu, 26 Jan 2017 08:00:00 EST

A one-way clutch includes an outer cam having a plurality of pockets circumferentially space along an inner periphery. The one-way clutch also includes an inner race positioned coaxially within the outer cam. The one-way clutch further includes a clutch mechanism. The clutch mechanism includes a plurality of teeth provided in association with each of the plurality of pockets. Each of the plurality of teeth is adapted to selectively lock and unlock the outer cam and the inner race. The clutch mechanism also includes a plurality of biasing members disposed in each of the plurality of pockets. Each of the plurality of biasing members is adapted to keep the corresponding teeth in contact with the inner race.



ONE-WAY CLUTCH

Thu, 26 Jan 2017 08:00:00 EST

A one-way clutch is provided. The one-way clutch includes an outer cam having a plurality of notches. Each of the plurality of notches is circumferentially spaced along an inner periphery of the outer cam. The one-way clutch also includes an inner race positioned coaxially within the outer cam. The inner race includes a plurality of pockets circumferentially spaced along an outer periphery of the inner race. The one-way clutch further includes a clutch mechanism. The clutch mechanism includes a plurality of leaf springs coupled to each of the plurality of notches. Each of the plurality of leaf springs is adapted to lock the outer cam and the inner race in first direction, and to slide on the outer periphery of the inner race in a second direction. The second direction is opposite to the first direction.



SPRING ASSEMBLY FOR RETURNING PISTON

Thu, 26 Jan 2017 08:00:00 EST

The embodiments relate to a spring assembly for returning a piston by urging the piston slidably arranged in a case in a predetermined direction. The spring assembly includes: an annular member; and plural spring members fixed to the annular member and arranged to urge the piston against the case. The annular member includes plural notch portions disposed on one of an inner periphery and an outer periphery of the annular member between the adjacent spring members, and plural standing wall portions disposed on the other one of the inner periphery and the outer periphery of the annular member opposite to the notch portions between the adjacent spring members. Each of the standing wall portions has a linear shape when viewed in a direction along a central axis passing through a center of the annular member.



SPRING ELEMENT FOR A FRICTION DEVICE

Thu, 26 Jan 2017 08:00:00 EST

The invention relates to a spring element (4) for a friction device comprising a spring element body (10) having a first spring element body part (11) and a second spring element body part (12) arranged behind it in the axial direction, which rest on each other in some areas, and each spring element body part (11, 12) has receiving areas (15) arranged beside one another in a circumferential direction (13) for friction linings (2, 3) that can be fixed to both sides, and the first spring element body part (11) and the second spring element body part (12) are formed in a ring shape and a first and second receiving tab (19, 20) are formed for each receiving area (15) for the friction linings (2, 3), and the first receiving tab (19) is arranged underneath the second receiving tab (20) in the radial direction, and the first receiving tab (19) and the second receiving tab (20) of each receiving area (15) for the friction linings (2, 3) of the first spring element body part (11) are formed by the latter and the first receiving tab (19) and the second receiving tab (20) of each receiving area (15) for the friction linings (2, 3) of the second spring element body part (12) are formed by the latter.



HYDRAULIC PARK GEAR ASSEMBLY

Thu, 19 Jan 2017 08:00:00 EST

A park gear and pawl assembly for a vehicle transmission includes a park gear, a hydraulic control passage, a park pawl, a hydraulic pump, an abutment assembly, a park rod, and a hydraulic actuator. The park gear is fixed for common rotation to an output shaft of the transmission. The hydraulic passage is integrated into a housing of the transmission. The park pawl is engaged with the park gear when the park pawl is in a first position. The hydraulic pump includes an input member and output port. The input member is drivingly connected to the output shaft of the transmission and the output port is in communication with the hydraulic. The park rod at least partially disposed in the abutment assembly. The hydraulic actuator axially actuated via hydraulic fluid pressure in the hydraulic passage.



CLUTCH

Thu, 19 Jan 2017 08:00:00 EST

An oil-flooded single-plate or multi-plate lockup clutch is provided in a torque transfer device. The torque transfer device may, for example, be a converter, a dual clutch, a starting clutch, a manual shifter or power shifting clutch, having a piston to engage the clutch and a damper. In accordance with the present disclosure, the piston together with a housing of the torque transfer device forms a closed pressure chamber when the clutch is engaged and at least one oil flow opening is provided in the piston in an area outside of the pressure chamber. The torque transfer device preferably has a damper and the piston of the clutch forms a part of the damper and may be designed as a retainer for springs of the damper.



STEEL CLUTCH HOUSING HAVING SPRAYED ON COATING

Thu, 19 Jan 2017 08:00:00 EST

The present invention provides a stamped steel friction clutch hubs or housings for use in automatic motor vehicle transmissions having a sprayed on hard steel or ceramic coating on wear surfaces. The clutch hub or housing is fabricated of steel which is stamped and of unitary construction. The clutch hub or housing is complexly configured and includes a center through opening having an inner surface which is contacted by a pair of resilient, axially spaced apart seals. The housing also includes a larger diameter portion having female splines which engage male splines on the periphery of a portion of the clutch plates. The inner surface which is contacted by the resilient seals includes a thin layer of sprayed steel or ceramic material that is machined after application to a desired diameter and surface finish.



SELECTABLE HEIGHT ACTUATING PISTON

Thu, 19 Jan 2017 08:00:00 EST

An actuating piston, and a piston assembly and a disconnect system including the actuating piston are provided. The actuating piston includes an annular backing plate having an axial projection on a first side between an inner radius and an outer radius and an annular piston having a recess between an inner radius and an outer radius. The annular piston is disposed on the annular backing plate so that the axial projection is received in the recess. The actuating piston is selected from a set of actuating pistons, each having a different height based on at least one of the wall thickness of the annular piston being varied or a height of the axial projection being varied, and one of the actuating pistons with a desired height is selected based on an actual height of the friction device.



SPEED CHANGE DEVICE

Thu, 19 Jan 2017 08:00:00 EST

A speed change device that includes a first clutch that has a first piston, a first engagement oil chamber, and a first centrifugal hydraulic pressure cancellation chamber configured to cancel a centrifugal hydraulic pressure generated in the first engagement oil chamber; a second clutch that has a second piston, a second engagement oil chamber, and a second centrifugal hydraulic pressure cancellation chamber configured to cancel a centrifugal hydraulic pressure generated in the second engagement oil chamber and that is disposed around the first clutch; and a drum member that defines the first engagement oil chamber together with the first piston and that defines the second engagement oil chamber together with the second piston.



DISCONNECT MECHANISMS

Thu, 19 Jan 2017 08:00:00 EST

A disconnect mechanism includes an input shaft defining a drive axis. A disconnect shaft is selectably engaged with the input shaft to be driven about the drive axis by the input shaft. A disconnect ramp shaft is operatively connected to the disconnect shaft to axially move the disconnect shaft between a first axial position wherein the disconnect shaft is engaged to the input shaft and a second axial position wherein the disconnect shaft is disengaged from the input shaft. The disconnect ramp shaft includes a ramp defined around an outer surface thereof. A disconnect pawl is selectably engaged with the ramp of the disconnect ramp shaft to engage or disengage the disconnect shaft from the input shaft.



FRICTION CLUTCH

Thu, 19 Jan 2017 08:00:00 EST

In an electromagnetic clutch, a rotor includes a cover portion that covers a radially outer end of an armature from a radially outer side. The cover portion, the radially outer end of the armature, and a wall of the rotor define a discharge passage that is formed into a ring shape centered on a rotating shaft and is open on a first end side in an axis line direction for discharging abrasion powder generated by friction between walls. The cover portion includes a tapered surface that is shaped such that an area in a cross sectional plane of the discharge passage which is orthogonal to an axis of the rotating shaft becomes larger toward the first end side in the axis line direction.



FLOATING HOUSING FORCE TRANSMITTING ASSEMBLY

Thu, 19 Jan 2017 08:00:00 EST

A force transmitting assembly includes a mounting flange having a central opening to receive a shaft, wherein the mounting flange is mountable on a frame, a rotor disc mountable on the shaft and rotatable with the shaft, the rotor disc having a first planar face and a second planar face, a float plate having a first friction surface engageable with the first planar face, and a pressure plate having a second friction surface engageable with the second planar face. The brake assembly also includes a spring housing, which operates as a piston, and a cylinder coupled to the spring housing to form a fluid pressure chamber, wherein the spring housing moves in a first direction when pressurized fluid enters the fluid pressure chamber and the spring housing moves in a second direction when pressurized fluid exits the fluid pressure chamber. The assembly further includes a plurality of nested tube subassemblies supporting the float plate, the pressure plate, and the spring housing to allow axial movement of at least one of the float plate, the pressure plate, and the spring housing. The nested tube subassemblies also transmit torque from the rotor to the mounting flange during the engaged condition of the brake assembly.



Shifting Device for a Motor Vehicle Transmission

Thu, 19 Jan 2017 08:00:00 EST

This invention relates to a shifting device for a motor vehicle transmission, in particular a fully automatic stepped transmission, comprising several transmission shafts which each are rotatable about a transmission axis, a synchronizer ring which is firmly connected with a transmission shaft, a first disk carrier, a plurality of first disks which are non-rotatably and axially shiftably connected with the first disk carrier, a second disk carrier which is axially shiftable relative to the first disk carrier and in circumferential direction can be coupled with the synchronizer ring both frictionally and positively, a plurality of second disks which are non-rotatably and axially shiftably connected with the second disk carrier and form a multidisk clutch with the first disks, and an actuating body for axially pressurizing the second disk carrier, wherein the actuating body and the second disk carrier are rotatable relative to each other in circumferential direction and substantially are firmly connected with each other in axial direction.



Transmission Device with a Hydraulic System

Thu, 12 Jan 2017 08:00:00 EST

A hydraulic system for a transmission device includes a primary pressure circuit and a secondary pressure circuit suppliable with hydraulic fluid from a defined saturation condition of the primary pressure circuit. A converter lock-up clutch is subjected to an operating pressure by a converter clutch valve. An inner torus chamber is suppliable with hydraulic fluid at a converter pressure of the secondary pressure circuit by a converter switching valve and by a valve device and a throttle device of the primary pressure circuit. The throttle device of the primary pressure circuit is downstream of the valve device of the primary pressure circuit.



Torque Converter

Thu, 12 Jan 2017 08:00:00 EST

A torque converter includes a torsional damper assembly. The torsional damper assembly includes a damper. The damper has an electromagnetic coil and a magnetorheological fluid. The electromagnetic coil is positioned such that a magnetic field from the electromagnetic coil adjusts a viscosity of the magnetorheological fluid when a current flows through the electromagnetic coil.



TRANSMISSION BRAKE DEVICE

Thu, 12 Jan 2017 08:00:00 EST

A transmission brake device includes: a friction plate set configured such that a plurality of rotation-side friction plates; an engaging piston disposed on an axial side of the friction plate set; a clearance adjustment piston disposed on a side of the engaging piston opposite to the friction plate set,; a clearance adjustment hydraulic chamber configured to move the clearance adjustment piston; and an engaging hydraulic chamber configured to move the engaging piston; a biasing member disposed between each adjacent pair of the fixed-side friction plates, the biasing member being configured to bias each adjacent pair of the fixed-side friction plates in directions away from each other. The biasing member distributes the clutch clearance in a gap between each adjacent pair of the fixed-side friction plates when a hydraulic pressure is supplied only to the clearance adjustment hydraulic chamber.



SEMI-AUTOMATIC SYSTEM AND METHOD FOR CONTROLLING CLUTCH OPERATION

Thu, 12 Jan 2017 08:00:00 EST

An apparatus for controlling engagement of a clutch comprises at least one distance sensor adapted to provide a signal proportional to the movement of a gear selector in a gearbox along a path for selecting one gear ratio, a clutch engagement control unit adapted to gradually engage the clutch connected to the gearbox in response to the signal of the distance sensor and a clutch signal control unit adapted to receive the signal from the at least one distance sensor and to provide a corresponding control signal to the clutch engagement control unit. A method for controlling the engagement of a clutch comprises receiving a signal proportional to distance of a gear selection lever from the Neutral zone of a gearbox along at least one gear selection path of the gear selection lever and providing a control signal to a clutch control unit to control the engagement of said clutch in response to said signal proportional to the distance of the gear selection lever from the Neutral zone.



CLUTCH AND MOTOR

Thu, 12 Jan 2017 08:00:00 EST

A clutch transmits rotation drive force of a rotation shaft to a driven shaft and restricts transmission of a rotation force from the driven shaft to the rotation shaft. The clutch includes a grease accommodation portion and a rotation member. Grease is arranged in the grease accommodation portion. The grease accommodation portion opens in an axial direction of the rotation shaft. The rotation member is at least partially inserted into the grease accommodation portion and rotated with the rotation shaft about a center axis of the rotation shaft. The rotation member includes a leakage restriction wall that is located toward a radially outer side of the rotation shaft from the opening of the grease accommodation portion and extended in the axial direction of the rotation shaft. The leakage restriction wall is located toward an outer side of the grease accommodation portion from the opening of the grease accommodation portion.



ROTATION TRANSMISSION DEVICE

Thu, 12 Jan 2017 08:00:00 EST

A rotation transmission device is provided in which a collision sound by an armature and a rotor is less likely to occur, and further the armature is stably attracted to the rotor. A buffer is provided between the armature and the rotor. The buffer is constituted by a metal annulus axially movably supported by the armature, and a rubber annulus configured such that as the armature approaches the rotor, the rubber annulus is axially compressed by the metal annulus and the armature. The rubber annulus has different axial thicknesses at different circumferential locations thereof such that when the degree of axial compression of the rubber annulus is large, the rubber annulus is axially compressed in its longer circumferential area than when the degree of axial compression of the rubber annulus is small.



CLUTCH SYSTEM

Thu, 12 Jan 2017 08:00:00 EST

A clutch system of the present invention executes, when switching a selectable one-way clutch from a lock mode to a free mode, an early mode switching control where while a selector plate is made go into a waiting state that a pawl member protruding from a fixed plate is abutting against a non-formation portion, a negative torque is made to act on a rotational plate in a negative rotational direction, and, by controlling the negative torque, the selector plate of the waiting state is made to rotate up to a release position.



DRIVEN ACCESSORY

Thu, 12 Jan 2017 08:00:00 EST

A driven accessory that includes an input member, a cover, an output member, a clutch and a clutch actuator. The input member is rotatable about and axis and has a hub, an outer rim, and a radially extending web that couples the hub to the outer rim. The cover is coupled to the input member for common rotation about the axis and cooperates with the input member to define a clutch cavity. The clutch is received in the clutch cavity and selectively transmits rotary power between the input member and the output member. The clutch actuator is selectively operable to change the operational state in which the clutch operates. The clutch actuator has an electromagnetic coil that is disposed outside the clutch cavity. The hub is disposed along the axis between the clutch and the electromagnetic coil



CLUTCH ASSEMBLY

Thu, 12 Jan 2017 08:00:00 EST

A clutch assembly is provided. The clutch assembly includes a clutch housing. The clutch housing includes an inlet and an annular groove. The annular groove is in fluid communication with the inlet. The clutch assembly also includes a clutch piston adapted to reciprocate based on an application of a pressure field on the clutch piston. A piston cavity is defined by the clutch piston and the clutch housing. Also, the pressure field is applied on the clutch piston by forming a constant circumferential flow path in the piston cavity.