Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner
Patent
1992-06-10
1994-01-25
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Selectively adjustable vane or working fluid control means
Upstream of runner
F04D 2956
Patent
active
052810879
ABSTRACT:
An industrial gas turbine engine includes in serial flow relationship a booster compressor, a core engine, a power turbine having a first shaft joined to the booster and an output shaft, and means for independently varying the radially outer and radially inner booster flow areas. The means for independently varying the radially inner and outer booster flow areas can include a dual panel variable booster inlet guide vane assembly having first and second variable vane portions. The vane assembly can include a first variable vane portion rotatably supported with a first vane panel extending in a cantilevered manner adjacent a second vane panel to provide a closely spaced radial clearance therebetween. Varying means can be positioned outward of a casing for independently varying the first and second vane portions. The variable vane assembly can be operable with compressor bleed means or power turbine outlet area varying means. In one embodiment the variable vane assembly can provide a minimum horsepower from the output shaft during unfueled shutdowns or for allowing lock-on and lock-off of an electrical generator at a synchronous speed.
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Casaregola Louis J.
Davidson James P.
General Electric Company
Squillaro Jerome C.
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