Two stage fuel pump with pressure passage in the first stage rot

Details Two stage fuel pump with pressure passage in the first stage rot Two stage fuel pump with pressure passage in the first stage rot

1993-03-10

1994-08-23

Bertsch, Richard A.

Pumps

Diverse pumps

Series

418 77, 418188, F04B 2312, F04C 1500

Patent

active

053402847

ABSTRACT:
A fuel pumping apparatus for supplying fuel to an internal combustion engine has a drive shaft which is coupled to a rotary part of a high pressure pump. A low pressure pump for supplying fuel to the high pressure pump has a rotor mounted about the drive shaft, a stator and side plates on opposite sides of the stator. The stator has an internal surface engaged by vanes carried by the rotor and one end plate has an arcuate outlet port which is connected to a transfer port formed in the side plate but inwardly of the outlet port. The transfer port is connected by passage means in the rotor with a fuel supply passage in the drive shaft.

REFERENCES:
patent: 2641238 (1953-06-01), Roosa
patent: 3228339 (1966-01-01), Evans et al.
patent: 3343494 (1967-09-01), Erikson et al.
patent: 3507579 (1970-04-01), Kemp
patent: 4463727 (1984-08-01), Babitzka et al.
patent: 4475870 (1984-10-01), Eickmann
patent: 4486154 (1984-12-01), Duplat et al.
patent: 4540347 (1985-09-01), Child

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