Servo control system for electro-hydraulic inlet valves

Details Servo control system for electro-hydraulic inlet valves Servo control system for electro-hydraulic inlet valves

1976-02-23

1977-04-12

Rosenthal, Arnold

Valves and valve actuation

With correlated flow path

With mounting or support

91363R, F16K 3102

Patent

active

040170560

ABSTRACT:
A position control system that interfaces turbine control systems with an electro-hydraulic actuator for inlet valves, is disclosed. The system includes a feedback signal generating means that eliminates the effect of differences in ground potentials which would otherwise cause undesirable valve movement and also a proportional plus integral controller that has independent porportionality and reset parameter adjustment. The system also includes a position characterizer that generates independent line segments in the feedback loop, and which provides for selecting monotonically decreasing slopes, or slopes with inflection discontinuities.

REFERENCES:
patent: 3015768 (1962-01-01), Hornfelk et al.

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