Pressure regulator

Details Pressure regulator Pressure regulator

1984-11-26

1986-12-23

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

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

13759618, 1376275, F16K 31363

Patent

active

046306323

ABSTRACT:
A regulator is provided in which the bias which urges the unseating of the regulating valve is a piston having a plurality of radial working surfaces, each in its own separate pressure chamber. The chambers are connected to the inlet selectively, singly or in combination, by solenoid valves. The unseating of the regulating valve is opposed by the outlet pressure which works on the entire back side of the piston. In the preferred form a relationship exists between the relative sizes of the individual piston working surfaces so that all the possible outlet pressures attainable by the regulator are equispaced, all the way from 0 psig to the highest regulated pressure.

REFERENCES:
patent: 2232914 (1941-02-01), Hewitt
patent: 2916205 (1959-12-01), Litz
patent: 3115147 (1963-12-01), Mueller
patent: 4037879 (1977-07-01), Horowitz
The Railway Magazine; pp. 186-188, "Brakes & Brunel" by Semmens; 5/1984.

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