VANE PUMP WITH IMPROVED ROTOR AND VANE EXTENSION RING

摘要

A fluid vane pump is provided which includes a housing providing a generally cylindrically walled control volume wherein the control volume has an inlet and outlet. A rotor is provided having a rotatable axis within a cylindrical wall control volume. The rotor has a plurality of radially movable vanes operatively associated with the cylindrical wall. A single vane ring is provided which is operatively associated with the rotor having an outer radial surface contacting the inner radial edges of the vanes.