Automotive fuel pump with regenerative impeller having convexly

Details Automotive fuel pump with regenerative impeller having convexly Automotive fuel pump with regenerative impeller having convexly

1994-12-27

1996-05-07

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

F04D 1706

Patent

active

055139507

ABSTRACT:
A fuel pump (10) has a housing (12) which houses a motor (14) with a shaft (16) extending therefrom and an impeller (18) fitted thereupon for pumping fuel from a fuel tank to an internal combustion engine. The impeller (18) has a plurality of radially extending curved vanes (30) on an outer circumference (34) separated by a plurality of partitions (32) interposed between the vanes (30), the vanes (30) and partitions (32) defining a plurality of partly elliptical vane grooves (50). The vanes (30) are convexly curved in the direction of rotation (40) and have an obtuse inlet angle (.theta..sub.1) and an acute outlet angle (.theta..sub.2).

REFERENCES:
patent: 3917431 (1975-11-01), Rose
patent: 5265996 (1993-11-01), Westhoff et al.
patent: 5372475 (1994-12-01), Kato et al.
patent: 5407318 (1995-04-01), Ito et al.
patent: 5409357 (1995-04-01), Yu et al.

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