Fluid flow governing valve means

Details Fluid flow governing valve means Fluid flow governing valve means

1978-09-12

1980-08-26

Michalsky, Gerald A.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

60528, 13762564, 251 11, F16K 31363, F16K 3140, F15B 13043

Patent

active

042191815

ABSTRACT:
Valve means for governing the flow of fluid to, and possibly also from a consumer, has a housing enclosing a movable main valve member, actuable by pressure fluid operable servo means. A flow control valve in a conduit supplying pressure fluid to the flow control valve is governed by an electric resistance body, e.g. a resistance wire, included in an electric circuit. By controlling the flow of electric current through the circuit the position of the main valve member may be determined within close limits.
When the main fluid to be governed is pressurized the fluid acting upon the servo means may be branched off from the main flow.

REFERENCES:
patent: 1738072 (1929-12-01), Kalle
patent: 2030932 (1936-02-01), Persons
patent: 2787118 (1957-04-01), Markham
patent: 3613732 (1971-10-01), Wilson
patent: 3680306 (1972-08-01), Nikitin et al.
patent: 3798894 (1974-03-01), Romanenko et al.
patent: 4018963 (1978-04-01), Stove

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