Fuel pump

Details Fuel pump Fuel pump

1990-01-19

1991-04-30

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

415 555, F04D 500

Patent

active

050113674

ABSTRACT:
A fuel pump including an impeller having a plurality of vanes at an outer circumference thereof and a well member surrounding the vanes and formed with a fuel grooves to define a pump chamber, wherein a portion of an edge of the fuel groove intersecting the vanes is chamfered. Accordingly, it is possible to reduce an impeller noise caused by the sudden shearing of the fuel flow in the pump chamber when the vanes of the impeller cross the edge of the fuel groove, thereby greatly improving the silentness in an automobile compartment.

REFERENCES:
patent: 1665687 (1928-04-01), Derrick
patent: 1689579 (1928-10-01), Burks
patent: 1973669 (1934-09-01), Spoor
patent: 2671404 (1954-03-01), Krueger
patent: 3168871 (1965-02-01), Sieghartner
patent: 4493620 (1985-01-01), Takei et al.

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