Lockup device and hydraulic torque transmission device...

Details Lockup device and hydraulic torque transmission device... Lockup device and hydraulic torque transmission device...

2011-07-19

2011-07-19

Bonck, Rodney H (Department: 3655)

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

C192S113350

Reexamination Certificate

active

07980370

ABSTRACT:
A lockup device7of a torque converter1is formed of a piston75, a clutch plate80, and a damper mechanism9. The clutch plate80has a first passage P1connecting an inner space S3on the radially inner side to a space S1formed axially between the front cover11and the clutch plate80, and a second passage P2connecting the inner space S3formed on the radially inner side to a space S2formed axially between the piston and the clutch plate80.

REFERENCES:
patent: 5732804 (1998-03-01), Wienholt
patent: 6742638 (2004-06-01), Maienschein et al.
patent: 07-145858 (1995-06-01), None
patent: H10-047453 (1998-02-01), None
German Office Action of the corresponding German application No. 10 2008 008 864.1-12, dated Oct. 27, 2010.

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