Means for controlling air scavenge pressure in the bearing compa

Details Means for controlling air scavenge pressure in the bearing compa Means for controlling air scavenge pressure in the bearing compa

1982-05-13

1984-02-28

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With lubricators

184 611, F02C 706

Patent

active

044335393

ABSTRACT:
In a gas turbine engine the vent for the bearing compartment has a restriction therein to control the airflow from the compartment and this restriction is variable in response to an engine parameter so as to control the pressure drop across the air seals for the compartment.

REFERENCES:
patent: 3171354 (1965-03-01), S/o/ hlemann
patent: 3378104 (1968-04-01), Venable
patent: 3884041 (1975-05-01), Zerlauth

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