VANE PUMP

摘要

An oil supply groove (13) is formed in a housing (2), and when a vane (4) passes the oil supply groove (13) as a rotor (3) rotates, a bifurcation path (12a) of an oil supply path formed in a shaft section (3B) of the rotor communicates with the oil supply groove (13) to cause lubricating oil to flow into a pump chamber (2A) via the oil supply groove (13). Then, a pressure difference between a first space A and a second space B causes the lubricating oil to flow into the second space, and the lubricating oil is ejected in the opposite direction to the direction of rotation of the vane, sprayed onto the vane passing thereafter. As a result, seal between the vane and the pump chamber is quickly provided. Even if the supply of the lubricating oil into the pump chamber is not sufficient, intrinsic performance of the vane pump can be rapidly exhibited.