Fuel pump assembly

Details Fuel pump assembly Fuel pump assembly

1974-01-18

1976-07-13

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417366, F04B 1700

Patent

active

039690440

ABSTRACT:
A fuel pump assembly wherein an elongated tubular housing surrounds a fuel pump and an electric motor and has a fuel-admitting inlet at one end and a fuel-discharging outlet at the other end. The rotor of the electric motor drives the pump rotor through the medium of several axially parallel elastic pins which extend into complementary sockets of the pump rotor. The pump rotor rotates directly on a shaft which is fixedly mounted in the housing. The rotor of the electric motor rotates on several friction bearings consisting of sinter metal and surrounding the fixedly mounted shaft. The pins form part of an elastomeric casing which surrounds a portion of or the entire rotor of the electric motor. Some fuel flows from the pressure side of the pump into an annular space between the shaft and the pump rotor and thence toward the outlet by flowing through the bearings as well as through a sleeve which supports the rotor of the electric motor and rotates with the bearings.

REFERENCES:
patent: 975532 (1910-11-01), Keller
patent: 3212449 (1965-10-01), Whalen et al.
patent: 3754844 (1973-08-01), Nusser et al.
patent: 3801231 (1974-04-01), Nusser et al.
Winfred M. Berg, Inc., Catalog, 1970, p. 2.

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