Solenoid valve in an automatic transmission

Details Solenoid valve in an automatic transmission Solenoid valve in an automatic transmission

1998-08-14

2000-02-01

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

25112902, 25112915, F16H 4502

Patent

active

060192038

ABSTRACT:
A transmission and control has a torque converter and clutch which is controlled between torque converter operation and torque converter clutch operation. The switch between these operations is controlled by a solenoid valve and a TCC apply valve. The solenoid valve is a normally open valve and includes a plunger that is spring loaded against a poppet valve to control the static pressure in the torque converter, during non-operating conditions of a vehicle, at or above a predetermined value.

REFERENCES:
patent: 4756331 (1988-07-01), Stegmaier
patent: 4988074 (1991-01-01), Najmolhoda
patent: 4988604 (1991-01-01), Vukovich et al.
patent: 5346175 (1994-09-01), Hunnicutt
patent: 5636828 (1997-06-01), Brehm et al.
patent: 5707039 (1998-01-01), Hamilton et al.

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