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 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.
대표청구항▼
1. A torque transmitting device comprising: a reaction plate having a pressing face for exerting a compression force;a friction plate disposed adjacent the reaction plate;a friction layer disposed on the friction plate and having a friction face opposing the pressing face, the friction layer having
1. A torque transmitting device comprising: a reaction plate having a pressing face for exerting a compression force;a friction plate disposed adjacent the reaction plate;a friction layer disposed on the friction plate and having a friction face opposing the pressing face, the friction layer having 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 pressing face; andat least one compression limiting member disposed on one of the friction plate and the friction layer, the at least one compression limiting member having a compression surface disposed between the friction face and the friction plate, wherein the at least one compression limiting member limits compression of the friction layer as the pressing face at least partially contacts the at least one compression limiting member, and wherein the at least one compression limiting member has a predefined height, andwherein the predefined height of the at least one compression limiting member is at least one of substantially equal to a thickness of the friction layer after the friction layer has been compressed when the torque transmitting device is in a high speed slip operating condition and greater than a thickness of the friction material layer after the friction layer has been compressed when the torque transmitting device is in a low speed slip operating condition. 2. The torque transmitting device of claim 1, wherein the friction layer has at least one groove and the at least one compression limiting member is disposed in the at least one groove. 3. The torque transmitting device of claim 1, wherein the at least one compression limiting member is adhered to the friction plate. 4. The torque transmitting device of claim 1, wherein the friction layer is made substantially of a porous material. 5. The torque transmitting device of claim 1, wherein the friction layer and friction plate have a plurality of fluid apertures. 6. The torque transmitting device of claim 1, wherein the predefined height of the at least one compression limiting member prevents the friction layer from being compressed beyond an elastic limit of the friction layer. 7. The torque transmitting device of claim 6, wherein the predefined height of the at least one compression limiting member is substantially equal to a second thickness of the friction layer after the friction layer has been compressed when the torque transmitting device is in the high speed slip operating condition. 8. The torque transmitting device of claim 6, wherein the predefined height of the at least one compression limiting member is greater than a third thickness of the friction material layer after the friction layer has been compressed when the torque transmitting device is in the low speed slip operating condition. 9. The torque transmitting device of claim 1, wherein the at least one compression limiting member is a radial insert. 10. The torque transmitting device of claim 1, wherein the at least one compression limiting member is a post. 11. The torque transmitting device of claim 1, wherein the at least one compression limiting member has a round cross section and has a surface opposing the pressing face, wherein the surface is chamfered. 12. The torque transmitting device of claim 1, wherein the at least one compression limiting member is a ring shaped member. 13. The torque transmitting device of claim 12, wherein the at least one compression limiting member comprises at least one inner annular ring member and at least one outer annular ring member. 14. The torque transmitting device of claim 1, wherein the at least one compression limiting member is an arcuate member. 15. The torque transmitting device of claim 1, wherein the at least one compression limiting member is formed into a grid. 16. The torque transmitting device of claim 1, wherein the friction layer is made substantially of a woven carbon fiber. 17. The torque transmitting device of claim 1, wherein the at least one compression limiting member is made primarily of metal. 18. A torque transmitting device comprising: a reaction plate having a pressing face for exerting a compression force;a friction plate disposed adjacent the reaction plate;a friction layer disposed on the friction plate and having a friction face opposing the pressing face, the friction layer having 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 pressing face; andat least one compression limiting member disposed on one of the friction plate and the friction layer, the at least one compression limiting member having a compression surface disposed between the friction face and the friction plate, the compression surface is at a predefined height that prevents the friction layer from being compressed beyond an elastic limit of the friction layer, wherein the at least one compression limiting member is stiffer than the friction layer, andwherein the predefined height of the at least one compression limiting member is at least one of substantially equal to a thickness of the friction layer after the friction layer has been compressed when the torque transmitting device is in a high speed slip operating condition and greater than a thickness of the friction material layer after the friction layer has been compressed when the torque transmitting device is in a low speed slip operating condition. 19. The torque transmitting device of claim 18, wherein the torque transmitting device has at least one fluid aperture through the at least one compression limiting member and the friction plate, wherein the friction layer is made substantially of a porous material. 20. The torque transmitting device of claim 18, wherein the at least one compression limiting member is a radial insert. 21. The torque transmitting device of claim 18, wherein the at least one compression limiting member is a post. 22. The torque transmitting device of claim 18, wherein the at least one compression limiting member has a round cross section and has a surface opposing the pressing face, wherein the surface is chamfered. 23. The torque transmitting device of claim 18, wherein the at least one compression limiting member is a ring shaped member. 24. The torque transmitting device of claim 18, wherein the at least one compression limiting member comprises at least one inner annular ring member and at least one outer annular ring member. 25. The torque transmitting device of claim 18, wherein the at least one compression limiting member is an arcuate member. 26. The torque transmitting device of claim 18, wherein the at least one compression limiting member is grid shaped.
Lam Robert C. ; Yesnik Marc A. ; Chen Yih-Fang, Fibrous lining material comprising a primary layer having less fibrillated aramid fibers and synthetic graphite and a secondary layer comprising carbon particles.
Lam Robert C., Fibrous lining material comprising a primary layer having less fibrillated aramid fibers, carbon fibers, carbon particles and a secondary layer comprising carbon particles.
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