Lubrication system

Details Lubrication system Lubrication system

F - Mech Eng,Light,Heat,Weapons

16

N

184/43

F16N 13/16 (2006.01) F01D 25/20 (2006.01) F01M 1/16 (2006.01) F16N 29/02 (2006.01)

Patent

CA 1233130

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 associ- ated with the bellows, detects that either the regulat- ing valve or the bellows is inoperative and permits the override valve to become operative.

479028

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