Lubrication system

Details Lubrication system Lubrication system

1984-04-20

1986-02-11

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With lubricators

184 611, F02C 706

Patent

active

045691967

ABSTRACT:
A lubrication system including a regulating valve and a bellows is provided for controlling the flow of lubricant from a source of lubricant under pressure to the gearbox and sump of an aircraft gas turbine engine as a function of the altitude at which the engine is operating. An override valve by-passes the regulating valve and cuts off flow of lubricant to the sump while assuming control of lubricant flowing from the source to the gearbox when a detent valve, operatively associated with the bellows, detects that either the regulating valve or the bellows is inoperative and permits the override valve to become operative.

REFERENCES:
patent: 2669245 (1954-02-01), Walker
patent: 2725956 (1955-12-01), Cunningham
patent: 2740267 (1956-04-01), Bayard
patent: 2827342 (1958-03-01), Roach
patent: 2996146 (1961-08-01), Beam et al.
patent: 3424374 (1969-01-01), Robey
patent: 3572356 (1971-03-01), Pinto
patent: 4170873 (1979-10-01), Milo
patent: 4245465 (1981-01-01), Milo

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