Transmission control valve system

Details Transmission control valve system Transmission control valve system

1993-03-26

1995-01-03

Kwon, John T.

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Fluid controlled mechanical clutch or brake

475123, 13762523, 13762524, F16H 5902

Patent

active

053782070

ABSTRACT:
A hydraulic control has valves for controlling the drive range selection and ratio interchange in a power transmission including a selector valve, a shift valve and a coast control valve. Each of these valves has a rotary spool distribution member for directing pressurized fluid to passages in a housing from which the fluid is delivered to the proper transmission mechanisms. The control simultaneously exhausts other transmission mechanisms.

REFERENCES:
patent: 1619701 (1927-03-01), Chorlton
patent: 1997057 (1935-04-01), Hamilton, Jr.
patent: 2101239 (1937-12-01), Chilton
patent: 2158054 (1939-05-01), Bradbury
patent: 2179082 (1939-11-01), Benson
patent: 3101012 (1963-08-01), Christenson et al.
patent: 3578007 (1971-05-01), Blake
patent: 4285366 (1981-08-01), Elser
patent: 4326433 (1982-04-01), Black et al.
patent: 4538640 (1985-09-01), Acker
patent: 4603603 (1986-08-01), Salmon
patent: 4705129 (1987-11-01), Fassbender

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