Recirculation valve in an aircraft engine

Details Recirculation valve in an aircraft engine Recirculation valve in an aircraft engine

F - Mech Eng,Light,Heat,Weapons

16

N

F16N 23/00 (2006.01) B64D 33/00 (2006.01) B64D 33/08 (2006.01) F02C 7/06 (2006.01) F02C 7/12 (2006.01) F16N 7/38 (2006.01) F16N 21/00 (2006.01)

Patent

CA 2646663

The present invention relates to an installation for lubricating and/or cooling in an aircraft engine comprisingan oil tank (3), a main feed pipe (6) feeding a main pump (1) supplying a flow in a discharge line from the main pump (7) to one or several systems (2) to be lubricated and/or cooled, wherein the installation comprises a feed pipe for an auxiliary pump (8) fitted in parallel onto the main pipe (6) and connected to an auxiliary feed pump (1A), the latter supplying a flow in a discharge line from the auxiliary pump (8A) connected by a three-way circuit on the one hand to a non-return valve (4A) directed towards the main discharge line (7), and on the other hand to a hydraulically-operated (9) recirculation valve (5), in order to divert the flow from the auxiliary feed pump (1A) into a return line (8B) directly towards the tank (3).

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