Fluid pump unit with flow control valve

Details Fluid pump unit with flow control valve Fluid pump unit with flow control valve

1990-08-24

1992-03-24

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417310, 417300, F04B 4900

Patent

active

050982591

ABSTRACT:
A fluid pump has a pressure chamber communicated with a discharge outlet via an orifice. A pressure difference responsive flow control valve is also provided for adjustment fluid flow rate through the discharge outlet. The flow control valve has a valve spool housed within a spool chamber. The spool chamber has one end directly opening to the pressure chamber.

REFERENCES:
patent: 4597718 (1986-07-01), Nakano
patent: 4838767 (1989-06-01), Ohe

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