Electric actuators for steam turbine valves

Details Electric actuators for steam turbine valves Electric actuators for steam turbine valves

1992-12-23

1994-08-02

Look, Edward K.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Plural diverse condition responsive

415 29, 415 42, 415150, 415151, 25112904, 25112911, F01D 1700

Patent

active

053339894

ABSTRACT:
Linear electric actuators powered by DC brushless servomotors are individually controlled to position steam turbine valves by way of levers, pins and links to thus eliminate hydraulics and the attendant disadvantages of fluid filtering, conditioning and leakage as well as obtaining more flexible individual valve control, vis-a-vis, camshaft operated hydraulic actuators. Additionally, low friction actuators and springs are employed to automatically close the turbine valves in the event of a power failure.

REFERENCES:
patent: 368674 (1887-08-01), Kent et al.
patent: 528483 (1894-10-01), Nixon
patent: 2195219 (1940-03-01), McGoldrick
patent: 2803197 (1957-08-01), Wiley et al.
patent: 3026889 (1962-03-01), Bryant
patent: 3780527 (1973-12-01), Lewis
patent: 3952995 (1976-04-01), Nagumo et al.
patent: 3970280 (1976-07-01), Kunz
patent: 5074325 (1991-12-01), Rumberger et al.
patent: 5179977 (1993-01-01), Iwata et al.
patent: 5184593 (1993-02-01), Kobayashi

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