Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: A clutch disk arrangement for a multi-disk clutch includes a hub element connectable to a shaft for rotation with the shaft about an axis of rotation. A carrier arrangement has a first carrier element and a second carrier element. The first carrier element is connected to the hub so that the first carrier element rotates with the hub. The second carrier element is connected to the first carrier element such that it is foxed with respect to rotation and axially movable relative to the first carrier element. The clutch disk arrangement further comprises at least two friction lining units. On of the friction lining units is firmly connected to the first carrier element and a second one of the friction elements is firmly connected to the second carrier element. Accordingly, the friction lining units are fixed with respect to rotation and axially movable relative to the hub element via the carrier arrangement.

Abstract: In a fluid transmission system with a lock-up clutch including a plurality of first transmitting claws provided in a clutch piston and inserted between adjacent damper springs, and a plurality of second transmitting claws provided in a turbine impeller and inserted between the adjacent damper springs to oppose the first transmitting claws, the plurality of second transmitting claws are welded to the turbine impeller in a separated and independent manner. Thus, the second transmitting claws can be fabricated with a good yield, and are applicable commonly to various fluid transmission systems of different specifications, leading to a remarkable reduction in cost.

Abstract: A driven disk in a clutch comprises a hub having a flange extending radially therefrom and having a spring cover affixed thereto. The spring cover defines at least one spring cavity therein and has two ends. Opposing first portions of the two ends define a first cavity length, and second opposing portions of the two ends define a second cavity length. A first spring is retained within the spring cavity wherein the first spring bears against the first end portions defining the first length. A second spring is also retained within the spring cavity wherein the second spring bears against the second end portions defining the second length.

Abstract: A torsional damper (10) rotatably supported for translating torque between a prime mover and the input of a transmission including a torque input member (12) that is operatively connected for rotation with the power take-off of a prime mover, an output member (14) operatively connected for rotation with the input to a transmission and a plurality of damping elements (16) interposed between the input member and the output member. The damping members (16) act to translate torque between the input and output members and to dampen torsional forces generated between the prime mover and the transmission. A bypass clutch (40) acts to translate torque directly between the input and output members thereby providing a path for partial torque translation that bypasses the damping elements at low rotational speeds of the input and output members.

Abstract: A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, and a torsional vibration damper. The turbine wheel is drivable by the impeller wheel. The turbine wheel shell is mounted in an axial and radial sliding bearing so as to be rotatable with respect to a turbine wheel hub. The torsional vibration damper is arranged on the turbine wheel hub so as to be fixed with respect to rotation relative to it. The turbine wheel hub is drivable by the turbine wheel via the turbine wheel shell and the torsional vibration damper. The turbine wheel shell acts on the torsional vibration damper via a connection element. The axial sliding bearing is spatially offset with respect to the radial sliding bearing.

Abstract: Overheating of various parts of a hydraulic torque converter between the engine and the transmission of the power train in a motor vehicle, wherein the torque converter employs a bypass clutch which generates heat when it is operated with slip, is counteracted by establishing one or more paths for the flow of hydraulic converter fluid from a first plenum chamber at one side of the axially movable piston of the bypass clutch to a second plenum chamber. A first portion of each such path is defined by at least one groove in a friction surface of at least one part of the bypass clutch, and a second portion of each such path is defined by one or more throttling orifices which offers or offer to the fluid flow a resistance several times that of the groove(s).

Abstract: The present invention provides a ratchet one-way clutch comprising inner and outer races disposed on a same axis and in which a pawl member as a torque transmitting member and a biasing member for biasing the pawl member are provided in one of the inner and outer races and a recessed portion into which the pawl member is fitted is provided in the other of the inner and outer races and a damper spring is provided on an outer periphery of the outer race and wherein an inner surface of a spring pocket for containing the damper spring has a shape complementary to a shape of the damper spring.

Abstract: A lockup device 1 is disposed inside a fluid chamber between a front cover 3 and a turbine 4 and provided with a clutch-purpose friction plate 12, a pair of drive the plates 13 and 14, a driven plate 15, and coil springs 16. The friction plate 12 can be coupled with the front cover 3. An extended part 18 extends from one of the plates 13 and 14 toward the other and engages with the inside circumferential edge of the friction plate 12 such that the friction plate cannot rotate but can move in the axial direction relative to the extended part. The driven plate 15 is fixed to the turbine 4. The coil springs 16 are compressed between pair of drive the plates 13 and 14 and the driven plate 15 when the pair of drive plates and the driven plate rotate relative to each other.

Abstract: A torsion damping mechanism with a torsion damper with an input side and an output side, where the input side and the output side are connected elastically to each other by spring-type stored energy elements for rotation in common auxiliary mass which can rotate coaxially to the torsion damping mechanism is connected frictionally to the torsion damping mechanism by way of a friction area, where the frictional connection between the torsion damping mechanism and the auxiliary mass has a predetermined frictional moment. When this moment is exceeded during the occurrence of peaks in the torque being applied to the torsion damping mechanism, the auxiliary mass can slip or slips.

Abstract: A torsional vibration damper for a hydrodynamic clutch device particularly for coupling a turbine wheel hub with a turbine wheel shell and/or for coupling a lockup clutch arrangement with a turbine wheel, includes a primary side and a secondary side which is rotatable about an axis of rotation with respect to the primary side against the action of a damper element arrangement. A radial bearing arrangement is arranged for radially supporting the primary side and secondary side with respect to one another. For this purpose, the radial bearing arrangement is arranged radially outside of the damper element arrangement.

Abstract: A clutch assembly for starting a vehicle without using a torque converter has a simple structure yet providing high reliability. In the clutch assembly (11, 12, 13), a clutch (10) and a damper device (121, 122) are housed in a housing (2) connected to a crank shaft of an engine. A boss (30) serving as an output member is connected to an input shaft (28) of an automatic transmission. An output of the engine is connected/disconnected to/from the input shaft (28) upon engagement/disengagement of the clutch (10). The clutch (10) includes a friction member (14) and a piston (20) fit oil tightly with the housing (2) so as to apply pressure to the friction member (14). One end of the damper device (121, 122) is connected to a clutch hub (16), and the other end is connected to the output member (30). The clutch (10) and the damper device (121, 122) are aligned on the axis of the housing (2).

Abstract: The invention relates to a starting unit for use in drive systems, especially of motor vehicles, which comprises a hydrodynamic speed/torque converter including at least one pump wheel, one turbine wheel and one stator, and comprises a torque converter lockup clutch. The output ends of the torque converter lockup clutch and of the speed/torque converter are interconnected in a rotationally fixed manner. In addition, a device for damping vibrations is provided which comprises at least one torsional vibration damper with hydraulic damping.

Abstract: A torsional vibration damper for a hydrodynamic torque converter is provided with at least one input part and an output part, which is given the ability to move relative to the input part by stored-energy elements, where the output part is designed as a hub disk, which is connected nonrotatably to a hub centered on a transmission input shaft. The hub disk extends radially inward to the area of the outside circumference of the hub, where it is connected directly to the hub.

Abstract: In a stator in which a damper mechanism is provided between a ratchet one-way clutch mechanism and a vane wheel, the damper mechanism is provided with a friction element.

Abstract: A hub ring for use in a clutch disk includes an inner circumference which can engage a hub; and a pair of axially opposed front sides. At least one of the front sides has means for positively engaging a structural component arranged against the respective front side so that torque can be transmitted from the structural component to the hub.

Abstract: An isolation assembly (26) for transferring torque between an engine (20) and a planetary transmission (30) includes both a radial spring assembly (56) and a viscous fluid damper (58). A damper plate (76) is rotationally coupled to the engine (20) and to the radial spring assembly (56). The damper plate (76) is also coupled to the viscous fluid damper (58). The torque output from the damper (58) and radial spring assembly (56) is then coupled to the input to the transmission (30).

Abstract: A damper assembly has circumferentially arranged coil springs between drive plates, and secured by retainer formations on the drive plates, and by edges of retainer plates adjacent to respective drive plates to substantially prevent relative movement between drive plates and springs to prevent springs abrasion and breakage.

Abstract: A clutch disk assembly 1 has a pair of axially facing plates 12 and 13. A relatively rotatable flange 8 is provided between the plates 12 and 13. A first elastic member 30 exhibits high rigidity on the positive side of the torsional characteristics. A second elastic member 31 is provided to operate in parallel with first elastic member 30 to realize a low rigidity on the negative side of the torsional characteristics. The stop pins 22 affix plates 12 and 13 together. The stop pins 22 and notches 8c are provided on the outer periphery of the flange 8 constitute a stopper mechanism 86 for regulating the relative rotation between the plates 12 and 13 and the flange 8. The stopper mechanism 86 is located on radially outside the second elastic members 31. The stop pins 22 are movable on the outer periphery of the second elastic members 31.

Abstract: A variable inertia flywheel and clutch assembly having a primary flywheel mass rotationally fixed to an engine crankshaft and a secondary flywheel mass selectively engageable with a clutch disc, which is rotationally fixed to a transmission input shaft. A radial spring assembly is coupled between the primary mass and the secondary mass, as well as a latching assembly that can latch to selectively prevent relative rotation between the primary mass and the secondary mass. Preferably, the latching assembly is also employed as a variable damper between the primary mass and the secondary mass when the latching assembly is not latched.

Abstract: A torque converter of a power transmitting apparatus includes a pump impeller connected to a crank shaft of an engine via a front cover, a turbine runner opposing thereto and an input clutch switching a relationship between the turbine runner and an input shaft to an engaged or disengaged state of an automatic transmission. A lockup clutch switched to an engaged or disengaged state with respect to the front cover includes a torsion damper provided between an upstream side plate fixed to the lockup clutch and a downstream side plate, in which a clutch drum is provided with an inertial mass at a downstream side of the torsion damper. Thereby, low-frequency sounds or vibrations in the power transmitting apparatus can be reduced.

Abstract: A hydrodynamic torque converter has a converter housing drivable in rotation by an engine, with an impeller. A turbine non-rotatably connected to an output shaft is hydrodynamically coupled to the impeller by way of a stator through an oil circuit. The turbine is axially slidably supported on the shaft. A friction surface on the turbine upon axial displacement of the turbine comes into frictional contact with a counterpart friction surface on the converter housing, thereby producing a lockup clutch effect. The turbine is also connected by way of springs to a coupling element arranged non-rotatably on the shaft. In an alternative configuration the turbine is arranged non-rotatably on the shaft and the lockup clutch action is by way of friction surfaces on a coupling element and on the converter housing. A torsion damper can be provided between the coupling element and the turbine.

Abstract: A lockup device 7 is provided with a plurality of friction surfaces to absorb and damp torsional vibrations to increase capacity. The lockup device 7 functions both as a clutch and as an elastic coupling mechanism. The lockup device 7 has a clutch plate 71, a drive plate 72, a driven plate 73, a plurality of torsion springs 74, a piston 75, and a piston coupling mechanism 76. The clutch plate 71 has a friction coupling part 71c and a cylindrical part 71b for bearing the centrifugal load of the torsion springs 74. The internal surface of the cylindrical part 71b of the clutch plate 71 bears the radially outward facing part of each torsion spring 74 directly. More specifically, the outward facing parts of the torsion springs 74 are born by increasing only the thickness of the cylindrical part 71b of the clutch plate 71.

Abstract: A piston coupling mechanism in a lockup device having a piston that presses the friction coupling part of a clutch mechanism against the front cover of a fluid-type torque transmission device is provided reduce the amount of work required for assembly. The piston coupling mechanism 76 of the lockup device 7 functions to couple the piston 75 to the front cover 11 such that it rotate integrally with the front cover 11 while being movable in the axial direction. The piston coupling mechanism 76 has a piston lug plate 83, a cover lug plate 84, and a return plate 85. The piston lug plate 83 and the cover lug plate 84 mate in such a manner that they can move in the axial direction but cannot rotate relative to each other. The return plate 85 can apply an axial force against the piston 75 directed toward the transmission and can also limit the axial movement of the piston 75 toward the transmission.

Abstract: A hydraulic torque converter, particularly for use in a motor vehicle between the prime mover and the transmission of the power train, employs a combination of a bypass clutch with one or more torsional vibration dampers which brings about savings in space and/or in the number of parts. In addition, the torque converter can stand long periods of use and is less prone to wear, adverse influences of abruptly developing stresses and/or other undesirable influences than conventional torque converters. Furthermore, the improved torque converter employs or can employ a bypass clutch and/or one or more torsional vibration dampers simpler and less expensive than but superior to those in conventional torque converters.

Abstract: An object of the invention is to suppress an increase in an inner diameter of a friction facing of a clutch disk assembly, which may be caused by fixing portions of a plate member pair of a clutch disk assembly 1. The clutch disk assembly 1 is provided to couple to a flywheel 2 of an engine. The clutch disk assembly 1 includes a friction facing 20, a pair of plates 15 and 16, a hub 8, and coil springs 11. The plates 15 and 16 have fixing portions 34 fixing their outer peripheral portions together. The coil springs elastically couple the paired plates 15 and 16 to the hub 8 in the rotating direction. The fixing portions 34 project radially outward beyond the inner periphery of the friction facing 20.

Abstract: A dual mass flywheel between the output element of the engine and the power train of a motor vehicle is provided, which includes: a primary mass adapted to be attached to a crankshaft of an engine for rotation, the primary mass including two sheet metal components defining a damping chamber; a secondary mass supported for rotation relative to the primary mass and adapted to be coupled to a friction clutch; and a drive plate that is coupled to the secondary mass. A vibration damper is installed between the primary and secondary masses, the vibration damper including a plurality of ball members which move along the damping chamber by centrifugal force; a plurality of ball guide members; a plurality of resilient members; and a drive guide.

Abstract: In a fluid transmission system with a lock-up clutch including a plurality of first transmitting claws provided in a clutch piston and inserted between adjacent damper springs, and a plurality of second transmitting claws provided in a turbine impeller and inserted between the adjacent damper springs to oppose the first transmitting claws, the plurality of second transmitting claws are welded to the turbine impeller in a separated and independent manner. Thus, the second transmitting claws can be fabricated with a good yield, and are applicable commonly to various fluid transmission systems of different specifications, leading to a remarkable reduction in cost.

Abstract: A ratchet one-way clutch comprises an inner race provided with recessed portions on the outer circumference; an outer race member arranged coaxially with the inner race, being provided with pockets on the inner circum-ferential side; a pawl member arranged for each of the pockets to transmit torque by being fitted into each of the recessed portions; and a biasing member for biasing the pawl member in the inner diametral direction to promote the fitting. For this clutch, an operating element is provided to relatively rotate with respect to the outer race member, and an elastic member resides inclusively between the outer race member and the operating element.

Abstract: In a torque converter provided with a lockup device, performance of a torsion spring is improved, preferably by increasing its size, while suppressing an increase of an axial dimension of the torque converter. The torque converter includes a toric fluid actuating portion having an impeller, a turbine, and a stator. A ratio (D2/D1) of an inside diameter D2 to an outside diameter D1 of the fluid actuating portion is equal to or greater than 0.61.

Abstract: A facing carrier of a driver disk for a clutch plate includes a plurality of segments situated at a slight distance from one another around a circumference of a reinforcement part. The segments are pretensioned against the reinforcement part during assembly and welded thereto. The spacing of the segments allows uniform pretensioning of the segments against the reinforcement part.

Abstract: A hydrodynamic clutch device comprises an impeller wheel with a plurality of impeller wheel blades arranged successively in circumferential direction about an axis of rotation, a turbine wheel which is located axially opposite the impeller wheel and which has a plurality of turbine wheel blades arranged successively in circumferential direction, a stator wheel with a plurality of stator wheel blades which are arranged successively in circumferential direction in an area between the impeller wheel blades and the turbine wheel blades and are supported on a blade carrier. The stator wheel blades, the impeller wheel blades and the turbine wheel blades define a fluid circulation zone extending substantially annularly about the axis of rotation. A torsional vibration damper arrangement has a damper element arrangement which, at least in some areas, is arranged radially inside the fluid circulation zone and overlaps axially with the fluid circulation zone.

Abstract: A lockup device 1 is disposed inside a fluid chamber between a front cover 3 and a turbine 4 and provided with a clutch-purpose friction plate 12, a pair of drive the plates 13 and 14, a driven plate 15, and coil springs 16. The friction plate 12 can be coupled with the front cover 3. An extended part 18 extends from one of the plates 13 and 14 toward the other and engages with the inside circumferential edge of the friction plate 12 such that the friction plate cannot rotate but can move in the axial direction relative to the extended part. The driven plate 15 is fixed to the turbine 4. The coil springs 16 are compressed between pair of drive the plates 13 and 14 and the driven plate 15 when the pair of drive plates and the driven plate rotate relative to each other.

Abstract: A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, and a torsional vibration damper. The turbine wheel is drivable by the impeller wheel. The turbine wheel shell is mounted in an axial and radial sliding bearing so as to be rotatable with respect to a turbine wheel hub. The torsional vibration damper is arranged on the turbine wheel hub so as to be fixed with respect to rotation relative to it. The turbine wheel hub is drivable by the turbine wheel via the turbine wheel shell and the torsional vibration damper. The turbine wheel shell acts on the torsional vibration damper via a connection element. The axial sliding bearing is spatially offset with respect to the radial sliding bearing.

Abstract: A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, a turbine torsional vibration damper and a lockup clutch. The turbine wheel shell receives a connection element with which it acts on the torsional vibration damper. The lockup clutch has at least one clutch disk arranged at a disk carrier. The turbine wheel shell is connected on the radial inner side with the connection element. The disk carrier passes into a holding clamp which is connected to the turbine wheel shell in a radially eccentric manner. The disk carrier is connected with the connection element so as to be fixed with respect to rotation relative to it.

Abstract: A clutch disk arrangement for a multi-disk clutch includes a hub element connectable to a shaft for rotation with the shaft about an axis of rotation. A carrier arrangement has a first carrier element and a second carrier element. The first carrier element is connected to the hub so that the first carrier element rotates with the hub. The second carrier element is connected to the first carrier element such that it is foxed with respect to rotation and axially movable relative to the first carrier element. The clutch disk arrangement further comprises at least two friction lining units. On of the friction lining units is firmly connected to the first carrier element and a second one of the friction elements is firmly connected to the second carrier element. Accordingly, the friction lining units are fixed with respect to rotation and axially movable relative to the hub element via the carrier arrangement.

Abstract: A lock-up clutch of a torque converter includes an annular clutch outer mounted in a side cover, a clutch inner connected to a turbine impeller, a driving friction plate axially movably connected to the clutch outer, first and second follower friction plates connected to the clutch inner for movement toward and away from each other with the driving friction plate interposed therebetween, an inner chamber defined between the first and second follower friction plates, and an outer chamber faced by outer sides of the first and second follower friction plates. When the inside of the outer chamber is put at a pressure higher than that in the inner chamber, the follower friction plates are brought into pressure contact with the driving friction plate, and an urging force on the follower friction plates is not applied to the side cover.

Abstract: A torsional vibration damper is used for reducing or eliminating torsional vibrations in a vehicle driveline. A hub portion includes an elongated body with a first axial dimension. A disk portion is supported by the hub portion and has a second axial dimension that is smaller than the first axial dimension of the hub portion. The hub portion preferably is secured to rotate with an engine flywheel and the disk portion preferably is adapted to rotate with a transmission input shaft. The disk portion preferably supports a plurality of damping members, which can be positioned at different radial or axial locations depending on the needs of a particular situation.

Abstract: Each clutch disk has a hub area designed to be connected nonrotatably to a power takeoff element and a friction surface area designed to be clamped between opposing friction surfaces. Each clutch disk has a torsional vibration damper arrangement including two cover disk elements connected to the hub area for rotation in common, and a central disk element connected to the friction surface area for rotation in common. The central disk element is or can be brought into torque-transmitting connection with the cover disk elements via a damper element arrangement. The central disk element has a damper element interaction area and, radially outside the damper element interaction area, a friction surface carrier area, which is offset with respect to the damper element interaction area in the direction of an axis of rotation.

Abstract: A process for adjusting a friction clutch system of the type including a housing arrangement; a pressure plate; a stored-energy device supported against the housing and the pressure plate; a wear-compensating device installed in the path of support between the stored-energy device and one of the housing arrangement and the pressure plate, this device having a detection element on the pressure plate, which in association with a stop element fixed with respect to the housing arrangement, detects the amount of wear which has occurred in the friction clutch; a clutch-release mechanism for exerting force on the stored-energy device in the direction opposite its relaxation direction in order to carry out release operations; and a transmission shaft braking arrangement which is activated when a brake-release position is reached during a clutch-release operation.

Abstract: A clutch disk is provided having a connecting arrangement, by means of which the friction linings can execute a radial movement with respect to the hub rotation axis and/or tilting movement with respect to a plane orthogonal to the hub rotation axis.

Abstract: A hydrodynamic clutch device, especially a hydrodynamic torque converter, includes a pump impeller installed in a housing, a turbine impeller having a turbine shell connected nonrotatably to a turbine hub, and possibly a stator. The turbine hub consists of several individually manufactured parts such as a sheet-metal parts, and the turbine shell is designed and mounted on the turbine hub so that it assumes some of the functions of the turbine hub, such as the sealing and guide functions.

Abstract: The invention concerns a torsional vibration damping device (1), in particular for a motor vehicle clutch, said device comprising a disc (60) and a support (80) mounted mobile in rotation relative to each other about a common main axis, and linked in rotation via circumferential elastic members (90) damping torsional vibrations, said elastic members being interposed between the disc (60) and the support (80) and maintained in position circumferentially via lugs (65) of the disc (60) and lugs (82, 84) of the support (80) whereon are supported the elastic members (90) and radially via a guide ring (100) passing through the elastic members (90) and integral with the disc (60). Said device is characterised in that the lugs (82,84) of the support (80) are mounted on either side of a section of the ring (100) and the lugs (65) of the disc (60) can move freely at an angle between the lugs (82, 84) of the support (80).

Abstract: The present invention provides a ratchet one-way clutch comprising inner and outer races disposed on a same axis and in which a pawl member as a torque transmitting member and a biasing member for biasing the pawl member are provided in one of the inner and outer races and a recessed portion into which the pawl member is fitted is provided in the other of the inner and outer races and a damper spring is provided on an outer periphery of the outer race and wherein an inner surface of a spring pocket for containing the damper spring has a shape complementary to a shape of the damper spring.

Abstract: A hydrodynamic torque converter has a rotary housing which carries a pump assembly and can be driven by the output element of a prime mover in the power train of a motor vehicle, a turbine which is rotatable in the housing and has a hub mounted on the input shaft of a change-speed transmission, and a lockup clutch which, when engaged, can transmit torque from the housing directly to the turbine. The axially movable piston of the clutch is rotatable with the housing; this piston defines a first chamber with the housing and a second chamber with the turbine. The first chamber can receive pressurized hydraulic fluid to cause the piston to disengage the clutch so that the turbine can be rotated by the pump assembly by way of the body of fluid in the housing between the pump assembly and the turbine. The second chamber can receive fluid along at least one first path to engage the clutch by moving the piston toward the housing, and along at least one second path when the clutch is at least partially engaged.

Abstract: A torque transmitting system including a torque converter or a fluid coupling. The system includes a torsional-vibration damper that is positioned within the housing of the fluid coupling and that serves to damp torsional vibrations. Several locations at which the torsional-vibration damper can be positioned are disclosed.

Abstract: An object of the invention is to suppress an increase in an inner diameter of a friction facing of a clutch disk assembly, which may be caused by fixing portions of a plate member pair of a clutch disk assembly 1. The clutch disk assembly 1 is provided to couple to a flywheel 2 of an engine. The clutch disk assembly 1 includes a friction facing 20, a pair of plates 15 and 16, a hub 8, and coil springs 11. The plates 15 and 16 have fixing portions 34 fixing their outer peripheral portions together. The coil springs elastically couple the paired plates 15 and 16 to the hub 8 in the rotating direction. The fixing portions 34 project radially outward beyond the inner periphery of the friction facing 20.

Abstract: A torsional vibration damper for a hydrodynamic torque converter is provided with at least one input part and an output part, which is given the ability to move relative to the input part by stored-energy elements, where the output part is designed as a hub disk, which is connected nonrotatably to a hub centered on a transmission input shaft. The hub disk extends radially inward to the area of the outside circumference of the hub, where it is connected directly to the hub.

Abstract: In a clutch in which an end wall of a clutch housing made of an iron and a retainer plate secured to the end wall are connected with a transmitting gear made of an iron and disposed between the end wall and the retainer plate for rotation relative to each other in the predetermined range of angle, damper springs and belleville springs for urging the transmitting gear toward the retainer plate are interposed between the end wall as well as the retainer plate and the transmitting gear, and a thrust washer is mounted to an outer surface of the end wall of the clutch housing for preventing the contact of the end wall and the belleville springs; detent bores are provided in the end wall of the clutch housing, and detent claws are formed on a thin thrust washer to be engaged into the detent bores. Thus, the relative rotation of the clutch housing and the thrust washer relative to each other is prevented, while providing a good assemblability of the clutch.

Abstract: A torque converter 1 is provided with a configuration that improves the ability to assemble a hydraulic torque transmitting device. The torque converter 1 serves to transmit torque from engine crankshaft 2 to a transmission. Torque converter 1 is equipped with a torque converter main body 5 that has a fluid chamber therein and a damper mechanism 6 that serves to elastically couple torque converter main body 5 directly to the crankshaft 2 such that the coupling is elastic in the rotational direction. The assembly operation of the crankshaft 2 and the clutch cover assembly 8 is accomplished only by axially moving the crankshaft 2 and the clutch cover assembly 8 toward each other without requiring any fastening elements, such as bolts, rivets or the like.