Pressure regulating valve

Details Pressure regulating valve Pressure regulating valve

1981-07-15

1984-01-03

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

With counter-balancing pressure feedback to the modulating...

G05D 1600

Patent

active

044237472

ABSTRACT:
A pressure regulating valve for controlling a fluid pressure proportionally to an electric nominal value signal has a housing, a valve body in the housing, a proportionally operating magnet, a displacement pickup, a difference amplifier having inputs receiving a nominal value signal and an output signal from said displacement pickup, and an output connected with an input of the magnet, a valve cone associated with the valve body and loaded in a direction opposite to a fluid pressure as well as connected with a movable member of the displacement pickup, and a measuring spring loading the valve cone and fixedly abutting against the housing, wherein the valve member is movable in the housing and adjustable by an armature of the magnet against a force of the measuring spring.

REFERENCES:
patent: 2965132 (1960-12-01), Couffer
patent: 3693916 (1972-09-01), Tritt
patent: 4052996 (1977-10-01), Burrus
patent: 4266572 (1981-05-01), Schuttenberg

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