Hydraulic pressure regulating system for a vehicle automatic tra

Details Hydraulic pressure regulating system for a vehicle automatic tra Hydraulic pressure regulating system for a vehicle automatic tra

1981-11-18

1985-04-09

Herrmann, Allan D.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74869, 74863, B60K 4110

Patent

active

045093911

ABSTRACT:
In a hydraulic control system for an automatic transmission for vehicles having a pump being driven by the engine of the vehicle for generating a pressure of pressurized fluid in the hydraulic control system, and a pressure regulator valve for regulating the pressure of pressurized fluid supplied from the pump in keeping with an input signal pressure varying in accordance with the cruising condition of the vehicle, a pressure relief valve is provided in the input fluid passage of the regulator valve for relieving the pressure when the input signal pressure exceeds a predetermined level.

REFERENCES:
patent: 3593598 (1971-07-01), Winn et al.
patent: 3613484 (1971-10-01), Pierce et al.
patent: 3706240 (1972-12-01), Borneman et al.
patent: 4331046 (1982-05-01), Leonard et al.
patent: 4346626 (1982-08-01), Kawamoto
patent: 4347764 (1982-09-01), Lauven
patent: 4347765 (1982-09-01), Leonard et al.

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