Linearized controlled valves

Details Linearized controlled valves Linearized controlled valves

1980-05-21

1982-05-04

Rosenthal, Arnold

Valves and valve actuation

Mechanical movement actuator

Lever

251133, 74516, F16K 31528

Patent

active

043278949

ABSTRACT:
Servo control of a butterfly valve or the like, in which fluid flow is inherently non-linearly related to angular orientations of a vane or plug member, is effected through a function-generator mechanism interposed to render the system transfer function substantially constant. A function generator serving those purposes includes a mechanical cam-and-follower unit through which valve-controlling angular movements are maintained in a cosine-related slaving with angular movements of the rotor of an electrical servo motor.

REFERENCES:
patent: 2722396 (1955-11-01), Carr

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