Automotive fuel pump with convergent flow channel

Details Automotive fuel pump with convergent flow channel Automotive fuel pump with convergent flow channel

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 17/16 (2006.01) F04D 5/00 (2006.01) F23N 1/00 (2006.01)

Patent

CA 2131253

- 12 - ABSTRACT A fuel pump has a motor which rotates a shaft with an impeller fitted thereon for pumping fuel within a pumping chamber comprised of a cover channel and a bottom channel formed in a pump cover and a pump bottom, respectively, which encase the impeller. The cover channel begins at a fuel inlet and runs circumferentially to a transition section near the opposite end where it gradually becomes narrower and shallower until becoming flush with the inner cover face. The fuel outlet in the bottom channel is positioned circumferentially 0-5° beyond the end of and in partial fluid communication with the cover channel so that fuel is expelled smoothly from the cover channel through the fuel outlet.

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