Lock-up clutch of a hydrodynamic torque converter

Details Lock-up clutch of a hydrodynamic torque converter Lock-up clutch of a hydrodynamic torque converter

1996-10-03

1998-09-01

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192 7012, 192 7014, 192107C, 19211335, 19211336, F16H 4502, F16D 1372, F16D 25635, F16D 2564

Patent

active

057997632

ABSTRACT:
A lock-up clutch for a hydrodynamic torque converter which includes at least one piston which can be displaced in the axial direction and can be connected to the converter housing by means of at least one friction zone, which piston defines, by means of the side which faces the converter housing, a chamber in which, when the lock-up clutch is active, the pressure is lower than the pressure in the converter circuit, and which, in the vicinity of a friction zone, has at least one channel for the flow of hydraulic fluid from the converter circuit. The quantitative flow of hydraulic fluid is a function of the pressure exerted by the converter. The lock-up clutch further includes at least one friction zone which has at least one friction lining, whereby the lock-up clutch has a total of at least two friction linings of different axial dimensions which, in the event of different pressures acting in the converter, come into at least partial effective connection with the matching friction surfaces.

REFERENCES:
patent: 2058655 (1936-10-01), Anderson
patent: 2135126 (1938-11-01), Harwood
patent: 3907073 (1975-09-01), Harrison
patent: 4469206 (1984-09-01), Motomura et al.
patent: 5056631 (1991-10-01), Macdonald
patent: 5184704 (1993-02-01), Hays
patent: 5383540 (1995-01-01), Macdonald
patent: 5501309 (1996-03-01), Walth et al.
patent: 5566802 (1996-10-01), Kirkwood
patent: 5667043 (1997-09-01), Dehrmann et al.
patent: 5669474 (1997-09-01), Dehrmann et al.

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