Variable pressure regulating valve system

Details Variable pressure regulating valve system Variable pressure regulating valve system

1993-03-29

1994-08-09

Nilson, Robert G.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 45, F16K 31128

Patent

active

053356888

ABSTRACT:
A pressure-regulating valve system includes a valve body assembly having inlet, outlet and control chambers. A flow valve assembly includes a diaphragm gasket which movably mounts a valve member. The valve member is movable between a closed position, a full flow open position and two pressure-regulating positions intermediate its closed and full flow positions. A full flow bypass valve assembly selectively communicates the control chamber and the outlet chamber for relieving the fluid pressure in the control chamber whereby the flow valve moves to its full flow open position communicating the inlet and outlet chambers. A pressure regulating subsystem includes multiple pressure regulating modules each having a solenoid-actuated valve and a pressure adjustable valve. The pressure regulating modules are connected in parallel relationship to inlet and outlet manifolds which fluidically communicate with the control and outlet chambers respectively. Selectively actuating the pressure regulating modules positions the flow valve in its respective pressure regulating positions whereby the valve system output is pressure regulated.

REFERENCES:
patent: 2635634 (1953-04-01), Thurber
patent: 3282552 (1966-11-01), Sommese
patent: 3346004 (1967-10-01), Costello
patent: 4991625 (1991-02-01), Manganaro

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