Vane pump, for motor vehicles, has a structured base plate and/or cover plate at the pump chamber to prevent snagging by the rotor impellers

摘要

The vane pump (1) has a pump chamber with a base plate and a cover plate. The base plate (4) and/or the cover plate (8) are structured so that, when the pump is operating, the impellers (6) at the rotor (5) cannot snag at the fluid inflow and/or outflow. The fluid inflow opening (24) has at least one chamfer to guide the rotor impeller during rotation.