Power plants – Combustion products used as motive fluid
Patent
1983-06-10
1985-01-22
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60 39142, F02C 7268, F02C 732
Patent
active
044943725
ABSTRACT:
The invention is a multi role primary/auxiliary power system with engine start capability for aircraft that provides electric, mechanical and air conditioning power as well as engine starting functions. The compressor (20), turbine (26) and motor/generator (24) are coupled to a drive shaft (14) of the aircraft's engine (12) with the motor/generator (24) mounted between the compressor (20) and turbine (26). A first clutch (28) is mounted on the drive shaft (14) between the motor/generator (24) and the turbine (26). Coupled to the outlet (29) of the compressor (20) is a two-way valve (34) adapted to couple the compressor (20) to either a first duct (36) or second duct (37). Both of these ducts (36), (37) are coupled at their opposite ends to the turbine (26). Mounted in the first duct (36) is a combustor (40) and in the second duct (37) a first heat exchanger (42). A third duct (44) is also coupled between the compressor (20) and the turbine (26) and which incorporates a valve (50). Mounted between the turbine (26) and the engine (12) is a gear reduction assembly (58). Coupled to the output of the turbine (26) is a fourth duct (100) which is coupled to a second two-way valve. The second two-way valve (102) either couples the fourth duct (100) to an overboard vent (104) or a fifth duct (106), having a heat exchanger (108) mounted therein to the cabin of the aircraft. Coupling the first, second and third ducts (36), (37), and (44) together is a bypass duct (110) (sixth duct) which bypasses the turbine (26) and connects to the fourth duct (100). The sixth duct (110) also incorporates a simple open/close valve (112). Finally, a control circuit (115) for the motor/generator is provided which can couple either onboard battery power or ground supply AC power to the motor/generator.
REFERENCES:
patent: 2777301 (1957-01-01), Kuhn
patent: 2949731 (1960-08-01), Hambling
patent: 3145532 (1964-08-01), Moss
patent: 3171252 (1965-03-01), Trobridge
patent: 3187188 (1965-06-01), Adkins
patent: 3465162 (1969-09-01), Oprecht
patent: 3965673 (1976-06-01), Friedrich
Casaregola Louis J.
Dachs Louis L.
Lockheed Corporation
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