Patent ID: 6474938
Filing Date: 2002-11-05
Classification: F04D

Abstract:
A fuel pump comprising:a) a pump housing having an interior chamber and a discharge port, the interior chamber defining a central axis for the pump and laterally opposed arcuate channels extending about the central axis; b) a rotor member mounted for rotational movement within the interior chamber of the pump housing about the central axis thereof, the rotor member having a main body portion that includes circumferentially spaced apart radial vane elements, each vane element having a radially inner base portion and a radially outer tip portion, and a mounting portion supporting the rotor member within the interior chamber; and c) an inlet post member supported within the pump housing, having opposed first and second end portions and defining an inlet passage extending between an inlet port associated with the first end portion and a radial discharge port associated with the second end portion, wherein fluid admitted into the inlet port is delivered at a first pressure radially to the interior chamber of the pump housing at the base portion of the vane elements, such that rotation of the rotor member within the interior chamber about the inlet post member increases the pressure of the fluid disposed within the interior chamber, and the fluid exits the discharge port of the pump housing at a second pressure.