Helicopter heating and air conditioning system

Details Helicopter heating and air conditioning system Helicopter heating and air conditioning system

1982-02-16

1985-01-01

Cline, William R.

Refrigeration

With vehicle feature

Vehicle contained common power supply

62239, 165 43, 165 41, 2441185, B60H 304, B60H 300, B64D 900, B64D 1100

Patent

active

044909896

ABSTRACT:
An air conditioning and heating system for the cabin of a turbine-engine-powered helicopter includes an air conditioner with one or more evaporators, compressor and condenser, as well as an engine muff heater, for selectively feeding either hot or cooled air to cabin ducts. The system utilizes a single duct for intake of cold outside air for both the air conditioning condenser and for heating by the engine muff heater. A single fan having its motor in the cold air duct is provided to pull cold air through the condenser or push air through the heating system depending upon the setting of a valve in the cold air duct. The air conditioning compressor is uniquely mounted from the front end of the turbine engine drive shaft and driven by a grooved flat belt trained over crown pulleys.

REFERENCES:
patent: 2473496 (1949-06-01), Mayer
patent: 3583658 (1971-06-01), Herweg
patent: 3971511 (1976-07-01), Casey
patent: 3981206 (1976-09-01), Miranti
Comparison of Belts, Chains, Gears from Design Engineering Conference Paper, by Cheaney, Paullus & Raridan.
Product Engineering-Design Digest Issue Sep. 1959, pp. 210 to 213.

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