Auxiliary refrigerated air system with anti-icing

Details Auxiliary refrigerated air system with anti-icing Auxiliary refrigerated air system with anti-icing

1992-06-18

1994-01-18

Capossela, Ronald C.

Refrigeration

Processes

Reducing pressure on compressed gas

62172, 62401, F25B 900

Patent

active

052791300

ABSTRACT:
To prevent icing in an auxiliary refrigerated air system utilized in jet aircraft for environmental control purposes, wherein high pressure, high temperature input air bleed from the engine compressor is boosted in pressure and temperature, cooled in a heat exchanger and expanded in a turbine to produce refrigerated output air flowing through an output duct, a portion of the input air is diverted to warm appropriate parts of the expansion turbine to prevent ice accretion thereto. To prevent icing of the output duct, input air is also diverted to warm the duct wall. Alternatively, the engine fuel line is coiled about the output duct in heat exchanging relation to warm the duct wall.

REFERENCES:
patent: Re32100 (1986-04-01), Rannenberg
patent: 2356370 (1944-08-01), Allen
patent: 2992542 (1961-07-01), Arthur
patent: 3208234 (1965-09-01), Messinger
patent: 3355905 (1967-12-01), Berhold et al.
patent: 3623332 (1971-11-01), Fernandes
patent: 4196773 (1980-04-01), Trumpler
patent: 4262495 (1981-04-01), Gupta et al.
patent: 4580406 (1986-04-01), Nims
patent: 5036678 (1991-08-01), Renninger et al.

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