Method and apparatus for preventing cabin depressurization

Details Method and apparatus for preventing cabin depressurization Method and apparatus for preventing cabin depressurization

1987-05-04

1988-09-27

Joyce, Harold

B64D 1304

Patent

active

047733071

ABSTRACT:
An environmental control system (ECS) (10) utilizes an override valve (26) to prevent accidental aircraft cabin (16) depressurization. An ECS override valve (26) determines the difference between the pressure of air in a cabin and the pressure of air input to the cabin. If the pressure of the air input to the cabin is less than a given amount more than the pressure of the air in the cabin, the valve interrupts a lower pressure signal provided by the pilot so that the pressure of the air input to the cabin is greater than the given amount more than the pressure of the air in the cabin.

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