Aircraft cooling method

Power plants – Combustion products used as motive fluid

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Details

60 3907, 60 3983, 62 87, 62402, F02C 718

Patent

active

054149924

ABSTRACT:
A method for supplying cooling air on vehicles such as high speed aircraft includes diverting high pressure air from the compressor section of a gas turbine engine, cooling this air in a heat exchanger, and expanding the diverted high pressure air through an auxiliary turbine. Coolant in the heat exchanger may be inlet ram air, fan air, or aircraft fuel (which may be endothermic), and the coolant is ultimately introduced into the engine downstream of the compressor section. An auxiliary compressor may be used to further compress the diverted high pressure air or coolant prior to the flowing thereof through the heat exchanger, and one or more auxiliary turbines may be used to power the auxiliary compressor, or mechanical accessories on the vehicle.

REFERENCES:
patent: 3528250 (1970-09-01), Johnson
patent: 4120150 (1978-10-01), Wakeman
patent: 5056335 (1991-10-01), Reminger et al.
patent: 5161365 (1992-11-01), Wright
patent: 5176814 (1993-01-01), Spadaccini et al.
patent: 5232672 (1993-08-01), Spadaccin et al.
patent: 5267608 (1993-12-01), Coffinberry

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