Pivoting control valve actuator and support assembly

Details Pivoting control valve actuator and support assembly Pivoting control valve actuator and support assembly

1990-02-16

1991-12-24

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

74102, 92118, 92140, 137315, 251 58, 251635, 251229, 415126, 415151, 415157, F16K 31163, F16K 4300

Patent

active

050743252

ABSTRACT:
A steam turbine control valve actuator for lever-operated control valves includes a servomechanical actuator with a reciprocable rod. Such servomechanical actuator is mounted upon a support assembly that is, in turn, pivotably mounted to the control valve body. A distal end of the rod is coupled by a knuckle joint to one end of the lever which operates the control valve, and forces of the rod are biased by a spring that substantially eliminates side forces on the rod through maintenance of the effort that is applied to the lever by the rod in a direction that is parallel to the rod.

REFERENCES:
patent: 465477 (1891-12-01), Johnson
patent: 528483 (1894-10-01), Nixon
patent: 677940 (1901-07-01), Carr
patent: 1075574 (1913-10-01), Johnson
patent: 1130406 (1915-03-01), Jensen
patent: 2386589 (1945-10-01), Caldwell
patent: 3225612 (1965-12-01), Topinka
patent: 3296877 (1967-01-01), Flick et al.
patent: 3684237 (1972-08-01), Hyde et al.
patent: 3970280 (1976-07-01), Kunz

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