Class / Patent application number | Description | Number of patent applications / Date published |
192700160 | With torque connection between clutch-element and its shaft | 36 |
20110259700 | AXIALLY ADJUSTABLE WITHOUT PLAY COUPLING BETWEEN FLYWHEEL AND REACTION PLATE | 10-27-2011 |
192700170 | Resilient torque connection (e.g., for damping vibration) | 22 |
20080314710 | Device to dampen vibrations, especially a torsional vibration damper and force transmission device - A device for damping vibrations, especially a torsional vibration damper, comprising at least one primary part and a secondary part that are coaxial in relation to each other and limited rotatably relative to each other in a peripheral direction, whereby the primary part and secondary part ( | 12-25-2008 |
20090045025 | Clutch Damper Spring Pocket Improvement - A torsional damper with a hub assembly and a disc assembly has coil springs disposed therebetween. The coil springs are disposed in pockets defined in part by apertures in opposed cover plates. The apertures have sharply angled end portions providing deflection relief near the ends of the coil springs. | 02-19-2009 |
20090107792 | Series damper with hysteresis in one damper - A series damper, including: a first damper with a flange and a cover plate; and a second damper with first and second cover plates and a flange. The flange and the cover plate for the first damper are rotationally frictionally engaged and the flange for the second damper rotates free of frictional engagement with the first and second cover plates. The series damper includes a resilient element arranged to cause the frictional engagement of the flange and the cover plate for the first damper. In some aspects, the resilient element is frictionally engaged with the cover plate for the first damper and is arranged to frictionally engage a turbine hub for a torque converter. In some aspects, the resilient element is rotationally connected to the flange for the first damper. In some aspects, the flange for the first damper includes the second cover plate for the second damper. | 04-30-2009 |
20090107793 | Method of forming a torsional vibration damping disk - A method of forming a torsional vibration damping disk, including the steps of: stamping a concave surface at a periphery of a disk; heat treating the stamped disk; placing at least one forming element at least partially in contact with at least a portion of the concave surface; and curling the periphery to partially surround the at least one forming element so that the at least one forming element is removable from the disk. In a second embodiment, the method includes the step of removing the at least one forming element after curling the periphery and includes the step of replacing the at least one forming element with at least one spring element. | 04-30-2009 |
20090205923 | Clutch unit - A clutch unit including a torsional vibration damper and having at least friction clutch, but can have two friction clutches combined into a twin clutch. The torsional vibration damper includes an input component that extends axially over the at least one friction clutch at the outer circumference of the friction clutch, so that a counterpressure plate of the at least one friction clutch is disposed axially between the drive engine and energy accumulators carried by the torsional vibration damper. Thus, the clutch unit has a smaller axial extent and can be accommodated in limited installation spaces. | 08-20-2009 |
20090272614 | Power Transmission Device - A power transmission device includes a power input member that rotates when torque is applied thereto, a power output member that puts out the torque, and a transmitting member that transmits the torque of the power input member to the power output member. The power input member and the power output member have substantially the same axis of rotation. The power transmission device has twisting characteristics with which the magnitude of the torque generated from the power output member continuously changes along a curve, with respect to a relative angle of twist between the power input member and the power output member. | 11-05-2009 |
20090321211 | CLAMPING DRIVE WITH MECHANICAL DAMPING FOR A TRACTION MECHANISM DRIVE - A clamping device with mechanical damping for a traction mechanism drive is provided. The device includes a clamping arm which carries a tension roller on one end thereof and is rotatably mounted in a housing at the other end thereof via a shaft connected thereto in a rotationally fixed manner, and is elastically supported on the housing by a torsion spring. A free end of the shaft is connected to a friction disk in a rotationally fixed manner, and a friction lining is arranged between the friction disk and an axial abutment surface of the housing. The invention reduces the friction lining wear and increases the damping capacity thereof. To accomplish this, a separate friction disk ( | 12-31-2009 |
20100025178 | TORSIONAL VIBRATION DAMPER COMPRISING A SECTIONAL PRIMARY ELEMENT - A torsional vibration damper includes a drive-side primary element having at least one primary dog, an output-side secondary element having at least one secondary dog, and at least one spring device between the primary and secondary dogs for spring-elastic coupling of the primary element to -the secondary element. The primary element has also an inner part and an outer part, on which the primary dog is arranged, and at least one damping part for vibration damping between the inner and outer parts. | 02-04-2010 |
20100032259 | DAMPER DEVICE - A damper device includes damper portions arranged in series with each other in a power transmission path and absorbing torsion by means of elastic force, hysteresis portions arranged in parallel with the damper portions at the power transmission path and absorbing the torsion by means of friction force, an input plate inputting rotational torque into one of the damper portion closest to the input side and the hysteresis portion closest to the input side, an intermediate plate transmitting the rotational torque from the damper portion, arranged at the input side, and the hysteresis portion, arranged at the input side, to the damper portions, arranged at the output side, and the hysteresis portions, arranged at the output side, and an output plate outputting the rotational torque from the damper portion closest to the output side and the hysteresis portion closest to the output side. | 02-11-2010 |
20100096237 | Damper clutch of torque converter - A damper clutch of a torque converter of the present invention can reduce generation of abnormal vibration and a booming noise in low speed and also, can lower engaging torque and enhance fuel efficiency with multiple elastic damping force. A damper clutch of a torque converter includes a plurality of damper spring that are disposed along radial direction and a plurality of spring supporter that are disposed between the damper springs and pressurizes the damper springs along radial direction when power is delivered from a piston to a turbine, wherein each two spring supporters, putting opposite, form a group and each group has different length for supplying multiple elastic damping force. | 04-22-2010 |
20100116613 | FORCE TRANSMISSION DEVICE - A force transmission device including at least one input and one output, a hydrodynamic component disposed there between, and a vibration damper disposed subsequent thereto in the force flow, which vibration damper comprises at least one damper input connected torque proof to the hydrodynamic component and at least one axial bearing disposed between the damper input and an element forming a support surface in axial direction. The damper input in the portion of its inner circumference includes a bearing seat for the axial bearing. The bearing seat for the axial bearing is formed by at least one rim portion, folded over at the inner circumference of the damper input and forming a fold-over portion. | 05-13-2010 |
20100175963 | TORQUE FLUCTUATION ABSORBING APPARATUS - A torque fluctuation absorbing apparatus provided between a driving source and a transmission and transmitting torque from the driving source to the transmission, the apparatus absorbing fluctuations in the torque and limiting a maximum value of the torque, the apparatus includes a flywheel, a supporting member, a first plate having a sliding surface, a second plate having a sliding surface, a disc spring supported by the supporting member and biasing one of the first and second plates towards the other one thereof, a friction material sandwiched tightly between the sliding surface of the first plate and the sliding surface of the second plate, a damper mechanism connected to the friction material and transmitting the torque from the driving source to an input shaft of the transmission, and a cover member demarcating the sliding surfaces of the first and second plates from an exterior of the torque fluctuation absorbing apparatus. | 07-15-2010 |
20100243399 | TORQUE FLUCTUATION ABSORBING APPARATUS - The torque fluctuation absorber includes a flywheel fixed on a first rotating shaft by a fixation member, a damper unit connected with a second rotating shaft and absorbs fluctuation of torque occurred between the first rotating shaft and the second rotating shaft by elastic force, and a limiter unit provided on a power transmission path between the flywheel and the damper unit and inducing a slide when the fluctuation of the torque exceeded a predetermined value. A predetermined member rotates with the first rotating shaft on a power transmission path between the first rotating shaft and the limiter unit. The predetermined member has a side plate at the damper unit and a guide portion that prevents movement radially of a hub member, and the guide portion is provided at radially internal side of the fixation member. | 09-30-2010 |
20100243400 | TORQUE FLUCTUATION ABSORBER - A torque fluctuation absorber includes a first plate member, ring-shaped second and third plate members, a fourth plate member, a resilient member and a predetermined member. The resilient member absorbs torque fluctuation between the second or third plate member and the fourth plate member. The predetermined member on a power transmission path between at least two of the first, second and third plate members has a stopper section. The stopper section allows relative rotation between the second or third plate member and the fourth plate member within a predetermined distance in the circumferential direction of the second plate member. The stopper section prevents relative rotation between the second or third plate member and the fourth plate member by contacting to the fourth plate member. | 09-30-2010 |
20100252390 | SEALED PTO DAMPER - A torsion damper including a plurality of elastic elements, a first plate drivingly engaged with the plurality of elastic elements and adapted to drivingly engage with a transmission shaft, a gear, and a second plate drivingly engaged with the gear and the plurality of elastic elements. At least one of the first or second plate is adapted to hydraulically seal with respect to a housing for the transmission. The gear may be adapted to be a power take-off gear for the transmission. | 10-07-2010 |
20100288596 | CLUTCH DEVICE - The present invention is to provide a clutch device that keeps a half-clutch range wide for a long time. A clutch device | 11-18-2010 |
20110315501 | DAMPER ASSEMBLY WITH ENGINE-SIDE COVER PLATE DIRECTLY CONNECTED TO ENGINE CRANKSHAFT AND POWERTRAIN HAVING SAME - The powertrain includes an engine having a crankshaft, and a transmission having a transmission input member. A damper assembly is included that has an engine-side cover plate facing the engine, a transmission-side cover plate facing the transmission, and a retaining member between the cover plates. Resilient members are positioned between the engine-side cover plate and the transmission-side cover plate and supported by the retaining member. The engine-side cover plate is directly connected to the crankshaft for common rotation therewith. | 12-29-2011 |
20140138202 | FRICTION CLUTCH SYSTEM - A friction clutch system mechanically couples a power source to a driven system of a vehicle to reduce the rotational inertia of the clutch system, provide torsional damping within the system, and minimize vibration (e.g., rattling) between a floater and a flywheel. For example, a damping assembly secured to the floater may engage a locator pin secured to the flywheel and thereby reduce vibration. The friction clutch system may include a first friction disc assembly directly engaged with a second friction disc assembly. The first disc assembly may include protuberances that extend axially from a hub assembly, which in turn may include damping springs and an internal splined region for coupling to a splined, driven shaft. The second friction disc assembly includes openings, which may take the form of radial slots, configured to engageably receive the protuberances. | 05-22-2014 |
20140138203 | DAMPER DEVICE FOR VEHICLE - A vehicle damper device has a disc plate rotatable around an axial center, a hub member rotatable around the same axial center as the disc plate, and an elastic member interposed between the disc plate and the hub member comprises a friction element configured to include a friction plate portion in sliding contact with the hub member and a pressing portion pushing the friction plate portion against the hub member; and a stopper defining a relative rotation amount between the friction plate portion and the disc plate, the friction element being disposed on an outer circumferential end portion of the hub member. | 05-22-2014 |
192700180 | Including chordally disposed connection | 3 |
20090057089 | CLUTCH ASSEMBLY AND METHOD - A clutch assembly and method are provided. The clutch assembly includes a base plate and cover plate secured together. A pressure plate is mounted between the cover plate and base plate and is axially movable but fixed against rotation relative to the base plate. The sides of the clutch assembly are open and friction members are carried by the base plate and pressure plate and are selectively engageable with a clutch plate positioned between the base plate and cover plate. | 03-05-2009 |
20090127057 | Friction Clutch and Vehicle Equipped with the Same - A friction clutch includes a clutch housing having a friction plate, a clutch boss having a clutch plate, a pressure plate, a sub clutch, and a power-assist mechanism. An elastic member urges the pressure plate in a predetermined direction to press the friction plate and the clutch plate into frictional contact with each other when the clutch is engaged. The sub clutch includes a friction plate operatively disposed between first and second pressing plates. The power-assist mechanism receives torque from the pressure plate via the sub clutch when the clutch is disengaged and converts the torque into a force for moving the pressure plate in a direction which separates the pressure plate from a plate group. | 05-21-2009 |
20100147644 | IDLE-ABLE AUXILIARY DRIVE SYSTEM - A power transfer unit (PTU) for a motive device includes an outer housing and a torque transferring clutch. The PTU also includes a piston housing located between the outer housing and the torque transferring clutch, and a piston in the piston housing. The piston is arranged to provide actuation forces to the torque transferring clutch, and to restrict reaction forces back to the piston housing. | 06-17-2010 |
192700190 | Axially slidable connection | 13 |
20090166143 | DRIVE, PREFERABLY FOR SHIPS - A drive including a fixed housing, a shaft rotatably disposed in the housing, at least one hydraulic-fluid actuatable switching element, a supply of hydraulic fluid to the actuatable switching element, an inner body disposed on the shaft so as to co-rotate with the shaft and including an annular groove and a floating seal disposed between the fixed housing and the inner body. The supply of hydraulic fluid includes a feed channel that extends from radially outside through the fixed housing so as to discharge in the annular groove and extends inside the inner body to the hydraulic-fluid actuatable switching element. | 07-02-2009 |
192700200 | Spline connection for multiple clutch-elements | 12 |
20090127052 | Coupling assembly including one or more springs received within a coupling pack - A coupling assembly includes an annular housing, an inner member and a coupling pack including first and second sets of discs that alternate with each other and respectively have connections to the annular housing and the inner member. An actuator compresses the coupling pack to rotationally couple the annular housing and the inner member to each other about a central axis. One or more springs is received within the second set of discs between the actuator and the inner member for decompressing the coupling pack to rotationally decouple the annular housing and the inner member from each other about the central axis. A set of retainers in the form of retaining tabs hold the coupling pack, the actuator, the spring(s) and the inner member within the housing. | 05-21-2009 |
20090127053 | Coupling assembly including retainers for holding coupling components within a housing - A coupling assembly including an annular housing, an inner member and a plurality of coupling components is provided. The coupling components include a coupling pack, an actuator and springs between the actuator and the inner member. A set of retainers in the form of retaining tabs hold the coupling components as well as the inner member within the housing. | 05-21-2009 |
20090200130 | Friction Control Element Having a Stroked State - A control element for opening and closing a drive connection between a first member and a second member includes a first ring engaged with the first member, displaceable among a disengaged position, a stroked position and an engaged position and formed with first serrations, a second ring engaged with the first member and including second serrations, a third ring engaged with the second member and including third serrations for alternately engaging with and disengaging from the first and second serrations, and a detent for resisting displacement of the first ring relative to the second ring when the first ring is in the stroked position and permitting displacement of the first ring relative to the second ring when the first ring moves from the stroked position to the engaged position. | 08-13-2009 |
20090200131 | OUTER HOUSING GEOMETRY FOR ALIGNING CLUTCH PLATES - An outer housing for a clutch assembly that allows for the housing to be placed over an already assembled multi-disc clutch pack. The outer housing incorporates a plurality of internally splined grooves, a lead-in chamfer to assist in the alignment of the center line between the housing and the center line of the clutch pack, and an index chamfer on elevated ridges that reside between the splined grooves to assist in the alignment of the splined teeth of outer clutch plates in the assembled clutch pack with said splined grooves. | 08-13-2009 |
20090242349 | VEHICLE CLUTCH - A vehicle clutch includes a clutch outer member, a clutch inner member, and a clutch center member movable in an axial direction between a first position and a second position. A cam mechanism is provided between the clutch inner and outer members. The cam mechanism generates an axial pulling force for moving the clutch center member to the first position when positive torque acts on the clutch inner member from the clutch center member. | 10-01-2009 |
20100065395 | MULTIPLATE WET CLUTCH - The invention relates to a multiplate wet clutch with a rotatable clutch hub which is rotationally fixedly connected to a plurality of inner plates which can be placed in frictional engagement with outer plates of an associated clutch cage, wherein the multiplate wet clutch has at least one fluid inlet opening which permits a fluid flow out of a fluid supply space to the plates. Arranged in the fluid flow path between the fluid inlet opening and the plates is at least one particle retention device. | 03-18-2010 |
20110067971 | WEAR RESISTANT CLUTCH PLATE - A clutch member of a torque converter of an automatic transmission fitted slidingly with a splined connection between a number of extending teeth of the clutch member and channels of a torque converter housing configured to slidingly engage the teeth. At least two of the teeth are elongated for a distance beyond engagement with a base of the respective engaging channels and bent at right angles to the original tooth extension direction. The extent of parallel engagement of the bent tooth and base of the channel of the splined connection is significantly increased and fretting wear between the teeth and the channels of the housing is reduced or eliminated. | 03-24-2011 |
20120181136 | CLUTCH PLATE CONFIGURATION AND METHOD - An annular core plate for a multiplate clutch assembly includes a main annular portion and an engagement annular portion extending from the main annular portion. The engagement annular portion has teeth extending therefrom. The teeth are thicker than the main annular portion. A multiplate clutch assembly is provided that includes at least one annular core plate or friction plate and at least one annular separator plate. A method of constructing at least one plate for a multiplate clutch assembly is also provided. The method includes forming an annular separator plate from sheet metal by removing a circular section from a separator plate main body portion of the sheet metal, removing a portion of the circular section to form teeth in the circular section, and attaching the circular section to an annular plate. | 07-19-2012 |
20130313064 | CLUTCH ASSEMBLY WITH FORMED RETENTION RING - A clutch assembly for a vehicle transmission includes a housing defined by a wall having an annular configuration circumscribing a clutch axis. The wall extends between an open end and a floor. The floor extends inwardly from the wall toward the clutch axis. A plurality of splines formed in the wall and each is spaced from the open end of the housing. A snap ring retains clutch plates in the housing. The open end of the wall is deformed inwardly toward the clutch axis defining a retainer for retaining the snap ring within the housing. | 11-28-2013 |
20140054125 | TABBED CLUTCH PLATES - A multiple plate friction clutch includes clutch plates or discs having reduced frictional (spin) losses and thus reduced heat generation and improved service life. The clutch plates include both leaf springs or spring tabs at the periphery of the clutch plate that axially bias adjacent plates away from one another and a reduced area of friction material that contacts an adjacent reaction plate. On a typical motor vehicle automatic transmission clutch, a total of six or eight leaf springs or tabs are utilized: with three or four offset to one side and three or four offset to the other side. | 02-27-2014 |
20140339043 | CLUTCH ASSEMBLY - A clutch assembly including a housing having internal radial teeth including relatively sharp V-shaped crests and troughs and annular clutch plates having teeth of the same configuration, wherein the included angle between adjacent teeth is about 60°. The internal surface of the housing in the disclosed embodiment further includes generally straight segments between a plurality of adjacent teeth having a longitudinal oil slot. The radial teeth of the clutch plates are continuous to nest into the internal teeth of the housing and the relatively straight segments. | 11-20-2014 |
20140339044 | CLUTCH ASSEMBLY WITH FORMED RETENTION RING - A clutch assembly for a vehicle transmission includes a housing defined by a wall having an annular configuration circumscribing a clutch axis. The wall extends between an open end and a floor. The floor extends inwardly from the wall toward the clutch axis. A plurality of splines formed in the wall and each is spaced from the open end of the housing. A snap ring retains clutch plates in the housing. The open end of the wall is deformed inwardly toward the clutch axis defining a retainer for retaining the snap ring within the housing. | 11-20-2014 |