Electric motor-driven two-stage fuel pump

Details Electric motor-driven two-stage fuel pump Electric motor-driven two-stage fuel pump

1978-09-01

1980-06-24

Gluck, Richard E.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

310154, 4151982, F04B 1700, F04B 3500, H02K 2126

Patent

active

042092841

ABSTRACT:
A fuel system for a motor vehicle wherein an electric motor-driven two-stage fuel pump has a motor with a cylindrical flux carrier having a pair of segmented permanent magnets disposed therein in a manner to provide a pair of axial fuel flow paths intermediate said magnets and interior to the flux carrier. The motor armature has a drive shaft with a D-shaped section which supports a pair of pump impellers each having a central D-shaped aperture complementary to the D-shaped section of the drive shaft. The shaft has a single bearing intermediate the armature and impellers so that the impellers are supported by the D-shaped drive connection in a manner which permits axial alignment of the impellers relative to the stationary elements of the pump.

REFERENCES:
patent: 2282569 (1942-05-01), Fabig
patent: 3418991 (1968-12-01), Shultz et al.
patent: 3631277 (1971-12-01), Ferdig et al.
patent: 3978354 (1976-08-01), Lee et al.

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