Discharge control apparatus of hydraulic pump for automatic tran

Details Discharge control apparatus of hydraulic pump for automatic tran Discharge control apparatus of hydraulic pump for automatic tran

1995-11-08

1997-09-23

Gluck, Richard E.

Pumps

With condition responsive pumped fluid control

Plural paths having individual condition responsive control...

477157, 417308, F04B 4908

Patent

active

056697619

ABSTRACT:
In an automatic transmission, the amount of transmission fluid discharged is controlled by a flow control valve. A fixed displacement type pump is connected with a bypass passage through which a part of fluid discharged from a discharge port of the pump flows back to a suction port of the pump. A flow control valve is provided in the bypass passage so as to regulate the amount of discharged fluid at an approximate equal level according to a feedback pressure generated in a pressure regulating valve.

REFERENCES:
patent: 3078736 (1963-02-01), Meads et al.
patent: 4391569 (1983-07-01), Bristow
patent: 4597718 (1986-07-01), Nakano et al.
patent: 4598612 (1986-07-01), Ideta
patent: 4767296 (1988-08-01), Satomoto et al.
patent: 5005443 (1991-04-01), Sugano
patent: 5226802 (1993-07-01), Nakamura et al.

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