Independently actuated control valves for steam turbine

Details Independently actuated control valves for steam turbine Independently actuated control valves for steam turbine

1985-05-08

1986-08-05

Smith, Leonard E.

Rotary kinetic fluid motors or pumps

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

By shaft speed or torque responsive means

415 44, F01D 1718

Patent

active

046040285

ABSTRACT:
A control system for a steam turbine employs complementary-sized nozzle groups receiving steam in a sequence which employs the smallest possible sized group receiving steam from a control valve of the smallest possible capacity as the governing valve. All other control valves remain either fully open or fully closed. An optimum path may be followed to select a highest-efficiency transition between valve combinations.

REFERENCES:
patent: 811249 (1906-01-01), Samuelson
patent: 915716 (1909-03-01), Wilkinson
patent: 3350061 (1967-10-01), Strass
patent: 3828814 (1974-08-01), Neumann et al.
patent: 4082115 (1978-04-01), Gibb et al.
patent: 4325670 (1982-04-01), Silvestri, Jr.

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