Lock-up clutch

Details Lock-up clutch Lock-up clutch

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 45/02 (2006.01) F16H 45/00 (2006.01)

Patent

CA 2585109

An object of the present invention is to provide a lock-up clutch which can reduce the sliding distance of the damper springs relative to the wall of the containing recess to reduce the hysteresis and thus to reduce the engine torque variation absorbing performance. According to the present invention there is provided a lock-up clutch (10) comprising: a clutch piston (11) arranged within a cover (5) of a torque converter (1) and adapted to be moved between a connected position and a non-connected position relative to the torque converter cover (5); a containing recess (18) formed on a circumferential edge of the clutch piston (11) for containing damper springs (12); and connecting members (16) for connecting a turbine (3) arranged within the torque converter cover (5) and the clutch piston (11) via the damper springs (12) contained within the containing recess (18); in which a torque inputted to the torque converter cover (5) can be transmitted to the turbine (3) via the clutch piston (11) and the connecting members (16) when the clutch piston is in the connected position characterized in further comprising; an independent member (17) forming an outer circumferential portion (17a) of the containing recess (18) arranged oppositely to the outer surface of each damper spring (12), the independent member (17) being separated from the clutch piston (11) so that it can move relative to the clutch piston (11).

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