Lock-up clutch mechanism

Details Lock-up clutch mechanism Lock-up clutch mechanism

2006-11-01

2010-10-19

Bonck, Rodney H (Department: 3655)

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

C192S052200, C192S10700R

Reexamination Certificate

active

07815027

ABSTRACT:
The present invention provides a lock-up clutch mechanism for a torque converter, comprising a lock-up piston and a front cover opposed to the lock-up piston and wherein a friction material having a friction surface is secured to one of the lock-up piston and the front cover, and the friction surface includes an outer peripheral friction surface which is engaged at an initial stage of engagement between the lock-up piston and the front cover and an inner peripheral friction surface which is engaged upon tightening, and the outer peripheral friction surface has a taper with respect to the inner peripheral friction surface, and the inner peripheral friction surface and the outer peripheral friction surface are subjected to a cutting operation.

REFERENCES:
patent: 4469206 (1984-09-01), Motomura et al.
patent: 6401898 (2002-06-01), Shimoi et al.
patent: 6524681 (2003-02-01), Seitz et al.
patent: 2003/0150682 (2003-08-01), Yokodana et al.
patent: 2004/0050646 (2004-03-01), Matthes et al.
patent: 2006/0118378 (2006-06-01), Fujii et al.
patent: 3157213 (2001-02-01), None
patent: 2004-11710 (2004-01-01), None
Translation of JP 2004-011710 A, Ushio, Jan. 2004.

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