Fuel pump of low fuel intake resistance

Details Fuel pump of low fuel intake resistance Fuel pump of low fuel intake resistance

2007-05-15

2007-05-15

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

C415S055200

Reexamination Certificate

active

11314235

ABSTRACT:
A fuel pump to be disposed in a fuel tank to supply pressurized fuel to an internal combustion engine includes a motor section, a pump section including an impeller driven by the motor section and a cylindrical pump housing having a pump passage extending along the outer periphery of the impeller so as to pressurize fuel, a suction filter and a feed passage member disposed around the inlet port of the pump passage. The feed passage member has a smooth feed passage connecting the pump passage and the suction filter. The feed passage tapers off toward an inlet port of the pump passage that opens at a peripheral portion of the pump housing.

REFERENCES:
patent: 4306833 (1981-12-01), Sixsmith et al.
patent: 5129796 (1992-07-01), Emmert et al.
patent: 6942447 (2005-09-01), Ikeya

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