Fuel pump for an internal combustion engine having two pump unit

Pumps – Diverse pumps – Including rotary nonexpansible chamber type

Patent

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Details

Other Related Categories

417363, 417368, 415 551, F04B 2314, F04B 3912

Type

Patent

Status

active

Patent number

048655228

Description

ABSTRACT:
A fuel feed device having a first pump assembled with an electric motor in a sheet-metal shell to form a self-contained unit. The drive shaft of the motor projects from the unit and is drivingly connected to an impeller of a second pump whose housing surrounds the impeller. The housing of the second pump surrounds part of the self-contained unit and a sleeve is pushed over the self-contained unit with clearance therebetween and is connected at its lower end to the second pump housing and forms a seal with the self-contained unit by a holding ring and an elastic membrane. The device is easily adapted to casings of the first pump of any form and shape and to requirements, such as changes in filter size, mounting in the fuel tank, and for different types of second pumps.

REFERENCES:
patent: 2843315 (1958-07-01), Faith-ell
patent: 2973895 (1961-03-01), Brown et al.
patent: 3443519 (1969-05-01), White
patent: 4231719 (1980-11-01), Ringwald et al.
patent: 4306844 (1981-12-01), Otto et al.
patent: 4309155 (1982-01-01), Heinz et al.
patent: 4336002 (1982-06-01), Rose et al.
patent: 4590964 (1986-05-01), Beardmore

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