Oil pressure monitoring system

Details Oil pressure monitoring system Oil pressure monitoring system

1981-05-05

1983-09-06

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With lubricators

184 611, F02C 706

Patent

active

044021801

ABSTRACT:
An oil pressure monitoring system for a gas turbine engine having a compressor and a bearing chamber adapted to be supplied with pressurized oil and having means for the drainage of oil therefrom and which is sealed against oil leakage therefrom by pressurized air derived from the compressor. The system comprises first and second switches which are adapted to be actuated by pressure differential, each at different pressure differential values and which are responsive to both the delivery pressure of oil supplied to the bearing chamber and to the pressure of sealing air derived from the engine compressor. A resistance network and a ratiometer are associated with the switches. The arrangement is such that the ratiometer indicates whether the switches have been actuated.

REFERENCES:
patent: 2243074 (1941-05-01), Anderson
patent: 2602583 (1952-07-01), Haeberlein
patent: 3347553 (1967-10-01), Schweiger
patent: 3378104 (1968-04-01), Venable
patent: 3545571 (1970-12-01), Kirkpatrick

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