Friction clutch pressure plate device 11 which is provided between spring device 12 and clutch disc unit 4 of friction clutch 1 comprises primary pressure plate 19, secondary pressure plate 22 which is capable of approaching and receding from primary pressure plate 19, and a plurality of weight plates 23 which are slidably arranged between mutually opposed side faces 19a, 22a of primary pressure plate 19 and secondary pressure plate 22. Primary pressure plate 19 comprises first outer circumferential wall 25 having inclined inner wall face 24, secondary pressure plate 22 comprises second outer circumferential wall 28 having perpendicular inner wall face 27, and weight plate 23 comprises tip portion engaging surface that engages with perpendicular inner wall face 27 and a tip portion inclined surface 32 that engages with inclined inner wall face 24.

A multiple disk clutch with a multiple disk pack and a power transmission device for transmitting an actuating force through openings in a wall of the multiple disk clutch to the multiple disk pack, wherein the power transmission device has transmission fingers that extend through the openings. The openings are at least partially arranged in a first wall section of the wall extending in the axial direction. In addition, the present invention relates to a dual clutch device having at least one such multiple disk clutch.

A multiple disk clutch with a multiple disk pack and a power transmission device for transmitting an actuating force through openings in a wall of the multiple disk clutch to the multiple disk pack, wherein the power transmission device has transmission fingers that extend through the openings. The openings are at least partially arranged in a first wall section of the wall extending in the axial direction. In addition, the present invention relates to a dual clutch device having at least one such multiple disk clutch.

Methods and apparatuses can be used to adjust the torque transfer capacity and improve the overall performance and longevity of a clutch assembly. Through the use of various improved clutch components disclosed herein, it is possible to: (1) increase clutch apply forces through an increase in the fluid pressure apply surface area, or piston reaction area, of a clutch piston, thereby increasing frictional forces generated within a clutch pack for transferring input torque from a drive shaft to a driven shaft; (2) improve clutch plate contact conditions through a more rigid clutch pressure plate configuration, thereby reducing clutch pack/plate distortion and supporting structure deformation and/or wear that can otherwise lead to excessive heat generation and overall clutch performance degradation and/or failure; and/or (3) improve the clutch assembly's ability to dissipate and/or tolerate heat generated through clutch plate friction by means of an improved clutch pack configuration.

Methods and apparatuses can be used to adjust the torque transfer capacity and improve the overall performance and longevity of a clutch assembly. Through the use of various improved clutch components disclosed herein, it is possible to: (1) increase clutch apply forces through an increase in the fluid pressure apply surface area, or piston reaction area, of a clutch piston, thereby increasing frictional forces generated within a clutch pack for transferring input torque from a drive shaft to a driven shaft; (2) improve clutch plate contact conditions through a more rigid clutch pressure plate configuration, thereby reducing clutch pack/plate distortion and supporting structure deformation and/or wear that can otherwise lead to excessive heat generation and overall clutch performance degradation and/or failure; and/or (3) improve the clutch assembly's ability to dissipate and/or tolerate heat generated through clutch plate friction by means of an improved clutch pack configuration.

A power take-off includes a hollow housing that is adapted to be supported on a source of rotational energy. An input mechanism supported within the housing is adapted to be rotatably driven by the source of rotational energy, and an output mechanism supported within the housing is adapted to rotatably drive a rotatably driven accessory. A clutch is operable in an engaged condition, wherein the input mechanism rotatably drives the output mechanism, and a disengaged condition, wherein the input mechanism does not rotatably drive the output mechanism. A clutch actuator selectively operates the clutch in the engaged and disengaged conditions and includes a primary clutch cylinder, a primary clutch piston that is supported for movement relative to the primary clutch cylinder, and a secondary clutch piston that is supported for movement relative to the primary clutch cylinder and the primary clutch piston.

A clutch device includes a main clutch, a pilot clutch, and an inner cage. The main clutch has a friction pack, a pressure device for pressing the friction pack, and a ramp system for moving the pressure device. The pilot clutch is for transmitting torque to the ramp system and can be opened and closed by moving the counter-plate. The pressure device can be moved by the counter-plate. The friction pack is mechanically connected to the inner cage and an outer cage. The ramp system includes a first ramp element arranged on the inner cage, a freewheel, and a second ramp element. The freewheel blocks rotary movement of the first ramp element in a first rotational direction and allows rotary movement in an opposite rotational direction. The first and second ramp elements, and the pilot clutch, are mechanically connected to the inner cage when the pilot clutch is closed.

A clutch device includes a main clutch, a pilot clutch, and an inner cage. The main clutch has a friction pack, a pressure device for pressing the friction pack, and a ramp system for moving the pressure device. The pilot clutch is for transmitting torque to the ramp system and can be opened and closed by moving the counter-plate. The pressure device can be moved by the counter-plate. The friction pack is mechanically connected to the inner cage and an outer cage. The ramp system includes a first ramp element arranged on the inner cage, a freewheel, and a second ramp element. The freewheel blocks rotary movement of the first ramp element in a first rotational direction and allows rotary movement in an opposite rotational direction. The first and second ramp elements, and the pilot clutch, are mechanically connected to the inner cage when the pilot clutch is closed.

A tandem wheel assembly for a work vehicle includes a tandem wheel housing having a center opening extending along a pivot axis and wheel end openings extending along associated wheel end axes. The tandem wheel housing is pivotally mounted to a chassis of the work vehicle about the pivot axis. A center sprocket is rotatably disposed within the tandem wheel housing. Wheel end assemblies are disposed at the wheel end openings and each includes a wheel end sprocket, a wheel end gear train, and a wheel end hub. A pair of reaction bars are being pivotally coupled at first ends to the chassis and at second ends to a component of the respective wheel end assembly. A pivot dampening system is positioned, at least in part, axially between the tandem wheel housing and either the chassis or the component of at least one of the wheel end assemblies. The pivot dampening system is configured to dampen the pivoting of the tandem wheel housing tandem wheel housing relative to the chassis.

A tandem wheel assembly for a work vehicle includes a tandem wheel housing having a center opening extending along a pivot axis and wheel end openings extending along associated wheel end axes. The tandem wheel housing is pivotally mounted to a chassis of the work vehicle about the pivot axis. A center sprocket is rotatably disposed within the tandem wheel housing. Wheel end assemblies are disposed at the wheel end openings and each includes a wheel end sprocket, a wheel end gear train, and a wheel end hub. A pair of reaction bars are being pivotally coupled at first ends to the chassis and at second ends to a component of the respective wheel end assembly. A pivot dampening system is positioned, at least in part, axially between the tandem wheel housing and either the chassis or the component of at least one of the wheel end assemblies. The pivot dampening system is configured to dampen the pivoting of the tandem wheel housing tandem wheel housing relative to the chassis.