Patent ID: 6305900
Filing Date: 2001-10-23
Classification: F04D

Abstract:
A fuel pump comprising:a non-corrosive fuel pump housing having a pump cover and a pump body;a motor mounted within said non-corrosive fuel pump housing having a shaft extending therefrom;an impeller located between said pump cover and said pump body and attached to said shaft for rotatably pumping fuel; andsaid pump cover having a narrow seal ring, a cavity core, and a tapered seal ring between said narrow seal ring and said cavity core, for preventing fuel leakage between said pump cover and said impeller, wherein said tapered seal ring cooperates with a second portion of said impeller and is tapered inward radially towards said cavity circle, where said tapered seal ring has a taper ratio of 15-25/10,000 and is approximately 8-10 millimeters in width.