Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1990-07-09
1994-04-12
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 395, 415148, F02C 304, F02C 700
Patent
active
053015002
ABSTRACT:
An industrial gas turbine engine includes in serial flow relationship a booster compressor, core engine, power turbine, and flow channel, with the power turbine having a first shaft, joined to the booster compressor, and an output shaft, and the flow channel having an outlet. Means for selectively varying flow area of the channel outlet are provided for controlling stall margin of the booster compressor in an exemplary embodiment of the engine and method of operation. The flow area varying means is effective for providing a minimum area of the channel outlet for controlling booster compressor stall margin at least at a synchronous speed associated with powering an electrical generator. In one embodiment, the flow area varying means effects a minimum horsepower from the output shaft for allowing lock-on and lock-off of the electrical generator at synchronous speed. In another embodiment of the invention, the flow area varying means is effective for braking the electrical generator during a full power stopcock rollback.
REFERENCES:
patent: 2529973 (1950-11-01), Sedille et al.
patent: 2873576 (1959-02-01), Lombard
patent: 2931168 (1960-04-01), Alexander et al.
patent: 3021668 (1962-02-01), Longstreet
patent: 3041822 (1962-07-01), Embree
patent: 3243596 (1966-03-01), Loft
patent: 3255586 (1966-06-01), Hennig et al.
patent: 3472027 (1969-10-01), Snow et al.
patent: 3523423 (1970-08-01), Young
patent: 3859785 (1975-01-01), Leto et al.
patent: 3924141 (1975-12-01), Yannone et al.
patent: 3998047 (1976-12-01), Walker
patent: 4163336 (1979-05-01), Frutschi
patent: 4206593 (1980-06-01), Su et al.
patent: 4398865 (1983-08-01), Garkusha et al.
patent: 4529887 (1985-07-01), Johnson
patent: 4624104 (1986-11-01), Stroem
patent: 4631914 (1986-12-01), Hines
patent: 4896499 (1990-01-01), Rice
Shepherd, D. G. Introduction to the Gas Turbine Constable & Co., London; 1960. p. 57.
Casaregola Louis J.
Davidson James P.
General Electric Company
Squillaro Jerome C.
LandOfFree
Gas turbine engine for controlling stall margin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas turbine engine for controlling stall margin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas turbine engine for controlling stall margin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2091027