Anti-siphoning valve for a pump for lubricating a turbo machine

摘要

Anti-siphoning valve (20) intended to be placed in a pipe (14) between a tank (10) and an intake orifice of a pump (14) for lubricating a turbomachine, including a valve seat (22) and a closure (24) which is returned elastically towards the said seat; characterised in that the said closure can move away from the said seat towards the said intake orifice, and in that it comprises a control chamber (32) in which there moves a piston (34) associated with the closure (24) and a hydraulic connection (36) between the outlet of the pump (14) and the control chamber (32). <IMAGE>