Multiple-disc coupling device, automatic transmission...

F - Mech Eng,Light,Heat,Weapons – 16 – D

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F16D 13/64 (2006.01) F16D 25/0638 (2006.01) F16D 43/10 (2006.01) F16H 61/02 (2006.01) F16H 63/30 (2006.01)

Patent

CA 2211341

A coupling device such as a clutch including first hardened steel discs (22) with teeth (25) for rotationally engaging a first clutch member, said first discs being alternated with second discs (19) with teeth (15) for rotationally engaging a second clutch member. The second discs (19) are made of carbon fibres embedded in a carbon matrix and have no internal reinforcement. The device is useful for improving clutch stability and smooth clutch engagement and enhancing the durability of the discs.

Le dispositif d'accouplement, tel qu'un embrayage, comprend une alternance de premiers disques (22) réalisés en acier trempé et possédant des dents (25) de couplage en rotation avec un premier organe de l'embrayage, et de seconds disques (19) ayant des dents (15) de couplage en rotation avec un second organe de l'embrayage. Les disques (19) sont réalisés en fibres de carbone noyées dans une matrice de carbone, sans armature à l'intérieur du disque. Utilisation pour améliorer la stabilité et la progressivité de fonctionnement de l'embrayage, et la longévité des disques.

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