Patent ID: 11964779
Assignee: SAFRAN AIRCRAFT ENGINES
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F  G | IPC B  F  G

Claim 8:
9. The oil tank filling device according to claim 1, wherein the device for closing the filling shut-off valve comprises an air duct connecting to the oil tank via an outlet port which can be sealed with oil and, at an opposite end, connecting to an inlet with a pressure lower than a pressure in the oil tank, the air duct passing through a first control chamber of the filling shut-off valve, and the shut-off valve contains a shutter of the supply duct, moved by a pressure in the first control chamber between an opening position of the supply duct when the pressure in the first control chamber is exposed to the pressure in the oil tank and a closing position of the supply duct when the pressure in the first control chamber is exposed to only said lower pressure.