Environmental control system and method for an aircraft

Details Environmental control system and method for an aircraft Environmental control system and method for an aircraft

2007-12-11

2007-12-11

Ali, Mohammad M. (Department: 3744)

Refrigeration

With vehicle feature

Occupant-type vehicle

C062S401000

Reexamination Certificate

active

11134765

ABSTRACT:
An environmental control system for an aircraft having an air pump that is powered by bleed air from an engine of the aircraft. Although the air pump is powered by engine bleed air, the air pump draws ambient fresh air from outside the aircraft, compresses the fresh air to a predetermined pressure and pumps compressed fresh air into the pressurized cabin of the aircraft without ever exposing the fresh air to the compressed engine air. To heat the compressed fresh air, heat from the engine bleed air can be transferred to the compressed fresh air with a heat exchanger. However, although heat is exchanged between the engine bleed air and the compressed fresh air, the two flows of air are kept separate and are never mixed.

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