Abstract: A clutch disc assembly for a friction torque device has a clutch damper assembly which includes a hub defining an axis of rotation and a concentric steel disc. The damper assembly includes a plurality of cushion elements fixed to the steel disc. First and second friction rings are disposed on opposite sides of the cushion elements and are rotatively fixed to the steel disc. First and second friction rings have an equal number of inner circumference and outer circumference keyhole slots defining an equal number of mounting areas. A friction pad is fixed to each mounting area, with friction pads on the first friction ring being in substantial alignment with the friction pads on the second friction ring.

Abstract: A wet clutch and to a hydrodynamic torque converter with a respective wet clutch as converter lockup clutch. In order to provide a good response of the wet clutch, the support elements for the friction surfaces and for the opposite friction surfaces of the wet clutch are axially supported relative to one another, at least over a partial portion of the actuation travel of the wet clutch.

Abstract: The clutch of the present invention has a reaction plate, a friction plate, a friction layer, and at least one non-compressible member. The friction plate is disposed adjacent the reaction plate for frictionally engaging the reaction plate to transfer a driving torque between the reaction plate and the friction plate when the compression force is applied. The friction layer has at least one groove. The at least one non-compressible member is disposed in the at least one groove for preventing further compression of the friction layer by the reaction plate. The at least one non-compressible member is adhered to the friction plate or press fit within the friction layer.

Abstract: The invention relates to a friction device for a clutch, particularly of a motor vehicle. The inventive friction device comprises first and second axially-spaced coaxial friction lining members which are defined by opposing friction faces. The device also comprises means for linking the two friction lining members which are solidly connected to one another. The first friction lining member is essentially ring shaped. The aforementioned linking means comprise linking tongue elements which are each equipped with a first end for solidly connecting to an inner edge of the first friction lining member and a second end for solidly connecting to the second friction lining member. Moreover, a deviation angle is provided between said first and second connecting ends, which can vary according to the axial spacing of the two friction lining member.

Abstract: The disclosed clutch includes a reaction plate, a friction plate, a friction layer, at least one non-compressible member and a fluid lubricant. The friction layer has a coefficient of friction that is sufficient to prevent relative rotation of the reaction and friction plates when the friction layer is compressed by the reaction plate. Further, the friction layer has at least one groove. At least one non-compressible member is disposed in the at least one groove to prevent further compression of the friction layer by the reaction plate. The at least one non-compressible member is mechanically fastened to the friction plate.

Abstract: The clutch of the present invention has a reaction plate, a friction plate, a friction layer, at least one non-compressible member, and a fluid lubricant. The friction plate is disposed adjacent the reaction plate for frictionally engaging the reaction plate to transfer a driving torque between the reaction plate and the friction plate when the compression force is applied. The friction layer has at least one groove. The at least one non-compressible member is disposed in the at least one groove for preventing further compression of the friction layer by the reaction plate. The at least one non-compressible member is adhered to the friction plate and a fluid lubricant is disposed between the reaction plate and the friction plate for providing a lubrication layer between the plates.

Abstract: A clutch disc assembly for a friction torque device has a clutch damper assembly which includes a hub defining an axis of rotation and a concentric steel disc. The damper assembly includes a plurality of cushion elements fixed to the steel disc. First and second friction rings are disposed on opposite sides of the cushion elements and are rotatively fixed to the steel disc. First and second friction discs have an equal number of keyhole slots defining an equal number of arms. A friction pad is fixed to each arm, with friction pads on the first friction disc being in substantial alignment with the friction pads on the second friction disc.

Abstract: To make it unnecessary to insert a plate spring as a separate part between a metal ring (2) and a mating member (11) to be coupled therewith such as a clutch plate, and reduce the number of parts and the assembly manhours, the sealing device (1) includes the metal ring (2) and seal sections (3) such as packings supported by the metal ring (2), and the metal ring (2) is provided with a intimate-contact region (4) for intimately contacting to the mating member (11) to be coupled, wherein the sealing device (1) is characterized in that the intimate-contact region (4) of the metal ring (2) is integrally formed with pawl-like intimate-contact sections (6) which are in the form of a pawl and which exert spring force on the mating member (11) to be coupled, and is used, for example, as a bonded piston seal (BPS) in an automatic transmission.

Abstract: A lock-up clutch (12) for a hydrokinetic coupling device (10), wherein the clutch includes rotational coupling means between a first element (44, 46) and an adjacent element (14A, 36) consisting of elastic tongues (60) adapted to transmit torque between the elements (44, 46, 14A, 36) and to be deformed elastically in the axial direction to enable movement of the first element (44, 46) relative to the adjacent element (14A, 36) about the articulation member in the form of an annular boss (50).

Abstract: A clutch capable of cushioning forward movement and guarding backward movement comprises a first mandrel, a second mandrel, a clutch sleeve, a driving stick, a clutch ring, a cushioning springs and a safety springs. The first mandrel further comprises an engagement gear surface formed on the section close to the second mandrel for the engagement with the clutch sleeve mounted on the second mandrel. The clutch sleeve is driven by the driving stick to shift longitudinally. The clutch ring is slidably mounted on the clutch sleeve, having a cushioning mechanism with the clutch sleeve. The safety springs and the cushioning springs are included in the cushioning mechanism for slowing down the engagement between the clutch ring and the engagement gear surface on the first mandrel when the driving stick drives the clutch sleeve but they are not precisely aligned.

Abstract: This device (10) comprises first (24A) and second (24B) friction lining members, substantially annular and coaxial, separated axially and delimited by opposing friction faces. The first friction lining member (24A) comprises a radially external part (32A) comprising a friction lining (26A), a radially internal part (30A) intended to be fixed to the second friction lining member (24B), and elastic connecting tongues (35A) each provided with a first end (36A) for connection to the radially external part (32A) and a second end (38A) for connection to the radially internal part (30A), the first (36A) and second (38A) connecting ends having an angular offset between them that is variable according to the axial separation of the two friction lining members (24A, 24B).

Abstract: An overrunning coupling assembly having improved shift feel and/or noise reduction is provided. The assembly includes planar first and second members rotatable about a first axis. In a locked position, torque transfer is permitted between the first and second members in a first direction about the first axis. In a disengaged position, the first and second members are permitted to free-wheel relative to each other in a second direction opposite the first direction. A compliant retaining device retains the first and second members together and absorbs axial impact loads. The retaining device is less compliant in the locked position than in the disengaged position to decrease axial force at time of axial impact and improve shift feel and/or noise reduction. In a first embodiment, the retaining device includes a wave spring. In a second embodiment, the retaining device includes a stepped weir plate.

Abstract: A drive device includes a first member including a first shoulder, and a second member positioned in close proximity to the first member and including a second shoulder. The device also includes a coupling arrangement including a strut having a first edge for direct engagement with the first shoulder, a second edge for engagement with the second shoulder and supported for pivotal movement between engaged and overrun positions, based on relative rotation of the first and second members such that the first member drives the second member in a drive mode with the strut in the engaged position and the first and second members can overrun with respect to one another with the strut in the overrun position. The coupling arrangement also includes a cushioning member disposed between the second edge and the second shoulder for cushioning each initial engagement of the strut in the drive mode.

Abstract: A one-way drive device includes a first, drive member rotatable about an axis in both a drive direction and an opposite, overrun direction. The one-way drive device also includes a second, driven member rotatable about the axis in at least a driven direction. The one-way drive device further includes a coupling arrangement including at least one strut cooperating with the first and second members such that the first member is able to drive the second member in the driven direction by causing the strut to initially engage and remain engaged between the first and second members during the time the first member drives the second member. In addition, the coupling arrangement includes a cushioning arrangement for cushioning the initial engagement of the strut between the first and second members.

Abstract: The friction disk (24) includes a support web (28) the outer peripheral portion (40) of which is sub-divided into radial blades (42) offset axially from the central fixing part (44) with respect to the general plane of the web (28), and including friction linings (30, 32) on either side of the peripheral portion (40), each lining (30, 32) including, on the one hand, a fixing surface (64, 66) a fixing area (62) of which is fixed onto at least one central part (44) of a radial blade (42), and, on the other hand, a reduced-thickness area (72), in an area separate from the fixing areas (62); at least one reinforcing element (74) extends face-to-face with at least a part of a reduced-thickness area. The invention also proposes a method of manufacturing a friction lining (30, 32) of the type described above.

Abstract: A multiplate clutch is provided with two types of frictionally engaging elements and a piston with plural pressing raised portions formed thereon. The frictionally engaging elements of at least one type are each provided with small waves. The two types of frictionally engaging elements are alternately arranged on two members such that in a state of relative rotation between the two members, rotation is transmitted via the frictionally engaging elements as needed. The waves on each of the frictionally engaging elements of the at least one type are arranged such that positions of swell portions or recess portions of the waves are shifted in phase from positions of the pressing raised portions of the piston.

Abstract: A friction clutch, particularly for a motor vehicle, has a rotatable clutch disk which is connected to a transmission input shaft so as to be fixed with respect to rotation relative to it and which can be clamped in axially between two clutch pressure plates. The pressure plates, which may be a clutch pressure plate and a flywheel, have annular friction surfaces which can act upon the clutch disk. The annular friction surfaces comprise the friction surfaces of a plurality of friction segments which are arranged in a uniformly distributed manner so as to form a ring, wherein every friction segment is arranged so as to be axially flexible in a springing manner to a certain extent.

Abstract: A clutch disk includes a hub area and a plurality of friction lining elements, which are supported on the hub area and arranged in sequence in the circumferential direction relative to a clutch disk rotational axis (A). These elements provide at least part of an associated friction surface area, where the friction lining elements are intended to make frictional contact with an associated opposing friction surface of a flywheel, a pressure plate, or the like. At least one friction lining element is supported so that the pressure exerted by its friction surface area against an opposing friction surface can change in response to a change in the sliding frictional interaction between its friction surface area and an opposing friction surface area which is or can be associated with it.

Abstract: A brake is provided that includes a friction disc assembly having two opposing friction discs separated by at least one resilient biasing member. A brake disc is positioned between the friction discs of the friction disc assembly and is splined to rotate with the shaft. A side of each friction disk that faces the brake disc is covered with a friction material. In normal operations, the friction discs are spaced apart from the brake disc. When it is desired to slow the rotation of the shaft, a release member contacts and compresses the friction disc assembly against a housing causing the friction material on each of the friction discs to contact and slow rotation of the brake disc. The present invention is particularly suited for use as a clutch brake for slowing rotation of an input shaft disposed between a clutch and a transmission of a vehicle.

Abstract: The friction disk (24) includes a support web (28) the outer peripheral portion (40) of which is subdivided into radial blades (42) offset axially from the central fixing part (44) with respect to the general plane of the web (28), and including friction linings (30, 32) on either side of the peripheral portion (40), each lining (30, 32) including, on the one hand, a fixing surface (64, 66) a fixing area (62) of which is fixed onto at least one central part (44) of a radial blade (42), and, on the other hand, a reduced-thickness area (72), in an area separate from the fixing areas (62); at least one reinforcing element (74) extends face-to-face with at least a part of a reduced-thickness area.

Abstract: A driver disk for a clutch plate includes a facing carrier for holding friction facings. The facing carrier is designed in one piece with facing springs for axial suspension of the friction facings. The facing springs are constructed as pot-shaped protuberances and have a flat area provided for contacting the friction facings. Since the facing springs are made as one piece with the facing carrier, the driver disk has only a small number of structural component parts and can be produced very economically.

Abstract: A friction clutch (10) having a device to cushion engagement of the clutch, the cushioning device comprising at least one resilient device (26) arranged in a recesses (28) in a first component (11) of the clutch and which acts to bias a second component (19a) of the cushioning. The or each resilient device is arranged to act on the second component via an insert (37) mounted in a recess (38) in the second component. The or each resilient device may comprise a pair of back-to-back belleville washers (27a, 27b) which are held in the recess in the first component by a bolt (30) which engages with a pillar (29) in the centre of the recess. An outer edge of the outermost washer (27b) protrudes from the recess to engage with the second componet.

Abstract: A clutch disk includes a hub area and a plurality of friction lining elements, which are supported on the hub area and arranged in sequence in the circumferential direction relative to a clutch disk rotational axis (A). These elements provide at least part of an associated friction surface area, where the friction lining elements are intended to make frictional contact with an associated opposing friction surface of a flywheel, a pressure plate, or the like. At least one friction lining element is supported so that the pressure exerted by its friction surface area against an opposing friction surface can change in response to a change in the sliding frictional interaction between its friction surface area and an opposing friction surface area which is or can be associated with it.

Abstract: A friction clutch comprising a flywheel having a rotational axis; a housing assembly which can be fixed to the flywheel for rotation in common about the rotational axis; a pressure plate mounted in the housing assembly so that it is free to move in the axial direction but is essentially unable to rotate relative to the housing; an energy storing device for loading the pressure plate toward the flywheel; a clutch disk assembly with an area located between the pressure plate and the flywheel, and an intermediate friction lining element assembly to transmit torque. The friction lining element assembly includes at least one friction lining element on the flywheel and/or at least one such element on the pressure plate.

Abstract: A clutch disc wherein two annular washer-like friction linings flank a two-part resilient cushion which moves the friction linings apart during disengagement of a friction clutch wherein the clutch disc is installed between an engine-driven flywheel and an axially movable pressure plate, and which stores energy during engagement of the clutch. A blocking or movement limiting device, which defines a fulcrum for the friction linings, is provided between the parts of the cushion and/or on the friction linings to prevent an axial movement of the friction linings toward each other beyond a selected minimum distance and to thus compensate for deformation of the flywheel and/or pressure plate as a result of heating attributable to slippage of the pressure plate and flywheel relative to the adjacent friction linings during engagement and disengagement of the clutch.

Abstract: A clutch disc wherein two annular washer-like friction linings flank a two-part resilient cushion which moves the friction linings apart during disengagement of a friction clutch wherein the clutch disc is installed between an engine-driven flywheel and an axially movable pressure plate, and which stores energy during engagement of the clutch. A blocking or movement limiting device, which defines a fulcrum for the friction linings, is provided between the parts of the cushion and/or on the friction linings to prevent an axial movement of the friction linings toward each other beyond a selected minimum distance and to thus compensate for deformation of the flywheel and/or pressure plate as a result of heating attributable to slippage of the pressure plate and flywheel relative to the adjacent friction linings during engagement and disengagement of the clutch.

Abstract: The invention concerns a friction plate (15) in particular for motor vehicle clutch, comprising a support ring-shaped disk (14) whereof the outer peripheral part is divided into radial blades (70) bearing friction linings, in particular axially on either side, each blade (70) being of the tripod type and having, by means of folds (77, 78), a central bearing zone (76) linked to the disk (14) central part (114) and two peripheral bearing zones (75), characterized in that each of the two peripheral bearing zones (75) is connected (214) to the disk (14) central part (114).

Abstract: A clutch disc wherein two annular washer-like friction linings flank a two-part resilient cushion which moves the friction linings apart during disengagement of a friction clutch wherein the clutch disc is installed between an engine-driven flywheel and an axially movable pressure plate, and which stores energy during engagement of the clutch. A blocking or movement limiting device, which defines a fulcrum for the friction linings, is provided between the parts of the cushion and/or on the friction linings to prevent an axial movement of the friction linings toward each other beyond a selected minimum distance and to thus compensate for deformation of the flywheel and/or pressure plate as a result of heating attributable to slippage of the pressure plate and flywheel relative to the adjacent friction linings during engagement and disengagement of the clutch.

Abstract: A controllable bidirectional torque limiting device for driving a machine element. The input shaft is connected to a driver and the output shaft is connected to the machine element. The clutch mode of operation provides an adjustably limited torque output which rotates the machine element; the braking mode of operation provides an adjustable braking torque capable of stopping the rotating machine element upon cessation of the torque transmission. The assembly provides driving or braking actions as required. The device comprises a rotor, circular brake pad and two spaced apart pistons. Compressed air is introduced through a port in the bearing housing and is entrapped inside the piston cylinder walls. The resultant pressure exerts a force on the piston, causing the rotor to be pressed against the brake disc in the braking mode of operation, the amount of air pressure controlling the braking force. A plurality of steel balls are positioned between a pair of discs made of resilient material.