Using one kind of air-powered pump for oil discharge means

The present invention belongs to the technical field of aviation, relates to an air-powered pump for oil discharge device. The use of air-powered pump for the discharge of the first pump oil supply means (3) located in a first fuel tank (1), the first supply pump outlet conduit (8) and the engine supply line (7) in communication , an oil pump provided with an outlet conduit (8) for a first one-way first valve (5), separated oil drain passage (12) between the first feed pump (3) and the first check valve (5), oil drain passage (12) is provided for controlling the electric oil drain lead to off valve (11), the oil drain passage (12) extending out of the plane. The present invention is employed as a power supply pump, without setting up a separate booster pump or pressurized air source, simple structure, without affecting the oil discharge air engine fueling; electric valve if the fault can not be closed, only the discharge fuel of the fuel tank, the safety high.