Multifunction power system for an aircraft

Details Multifunction power system for an aircraft Multifunction power system for an aircraft

1986-06-11

1987-08-04

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft power plants

Auxiliary

2441185, 244 53A, 98 15, 62DIG5, 60 39141, B64D 4100

Patent

active

046840818

ABSTRACT:
The multifunction power system is a combination auxiliary power unit, environmental control system, engine start system, and emergency power system for an aircraft. The system is essentially a four-wheel auxiliary power unit comprising two compressors driven by one turbine by means of a common shaft and in addition a free turbine. The pressurized flow from the second compressor can be directed to parallel combustors and thereafter to the two turbines. A starter-generator and motor are coupled to the compressor drive shaft and the free turbine is used to power a generator and for engine starting. Ducts, heat exchangers, valves, etc., are so arranged as to provide the four functions by proper selection and routing of air.

REFERENCES:
patent: 2491462 (1949-12-01), Wood
patent: 2777301 (1957-01-01), Kuhn
patent: 3662975 (1972-05-01), Driskill
patent: 4091613 (1978-05-01), Young

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