Flow annunciation system

Details Flow annunciation system Flow annunciation system

1977-06-13

1979-08-21

Yuen, Henry C.

B64D 1304

Patent

active

041649001

ABSTRACT:
In a cabin pressure control system having primary and standby controllers, control is switched from the primary to standby upon occurrence of a malfunction which prevents the primary controller from maintaining pressurization properly. If failure is a result of insufficient inflow of pressurized air of excessive leakage, transfer is prevented and the problem is annunciated to the crew.

REFERENCES:
patent: 2342220 (1944-02-01), Price
patent: 2473776 (1949-06-01), Baak
patent: 2983211 (1961-05-01), Andersen, Jr.
patent: 3376803 (1968-04-01), Emmons
patent: 3453945 (1969-07-01), Andersen, Jr.
patent: 3473460 (1969-10-01), Emmons

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