Lock-up clutch control valve assembly

Details Lock-up clutch control valve assembly Lock-up clutch control valve assembly

1983-05-16

1985-12-31

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0092, 192 33, 192 331, F16D 2500, F16D 3300

Patent

active

045615284

ABSTRACT:
The control valve assembly comprises a lock-up valve (801) to control engagement of a lock-up clutch (L) and a lock-up timing valve (802) to control the supply of a first fluid pressure to the lock-up valve. The first fluid pressure biases the lock-up valve to effect engagement of the lock-up clutch. The lock-up timing valve is moved to shut off the supply of the bias oil pressure to the lock-up valve when the second signal oil pressure rises above a first predetermined value to allow the lock-up valve to move to a first position thereof to release the engagement of the lock-up clutch. The lock-up valve is moved from the first position thereof to a second position thereof to effect reengagement of the lock-up clutch when the second signal oil pressure increases above a second predetermined value which is higher than the first predetermined value.

REFERENCES:
patent: 3252352 (1966-05-01), General
patent: 3810531 (1974-05-01), Edmunds
patent: 3857302 (1974-12-01), Morris
patent: 3985046 (1976-10-01), Morris et al.
patent: 4046033 (1977-09-01), Hashimoto et al.
patent: 4095486 (1978-06-01), Ohnuma
patent: 4270636 (1981-06-01), Sunohara et al.
patent: 4305487 (1981-12-01), Sunohara
patent: 4324156 (1982-04-01), Iwanaga et al.
patent: 4431095 (1984-02-01), Suga
patent: 4431096 (1984-02-01), Kabayashi et al.

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