Fluid-flow control valve

Details Fluid-flow control valve Fluid-flow control valve

1997-05-28

1998-07-28

Michalsky, Gerald A.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

13711522, G05D 701

Patent

active

057850755

ABSTRACT:
A fluid-flow control valve device comprises a control orifice being fluidly disposed upstream of the outlet passage for variably restricting a flow of working fluid from the inlet passage to the outlet passage, a valve spool slidably accommodated in the spool chamber and defining first and second pressure chambers, and a control spring disposed in the second pressure chamber for biasing the valve spool toward the first pressure chamber, and a spring-bias adjustment device for variably adjusting a set spring-bias of the control spring associated the valve spool in response to a change in the pressure in the outlet passage.

REFERENCES:
patent: 4768540 (1988-09-01), Mochizuki et al.

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