Lock-up clutch pressure control device

Details Lock-up clutch pressure control device Lock-up clutch pressure control device

1990-09-06

1992-01-21

Bonick, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

F16H 4502

Patent

active

050820958

ABSTRACT:
A spool of a lock-up control valve is arranged to have equal pressure differential areas exposed to the apply and release pressures applied to the apply and release chambers of the lock-up clutch. The movement of the spool is determined by changes in a single variable level pressure and independent of the apply pressure.

REFERENCES:
patent: 4468988 (1984-09-01), Hiramatsu
patent: 4843920 (1989-07-01), Hayasaki et al.
patent: 4880090 (1989-11-01), Ando
patent: 4966263 (1990-10-01), Hayasaki

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