Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1978-06-16
1980-11-04
Gluck, Richard E.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
417410, 417360, F04B 1700
Patent
active
042317193
ABSTRACT:
A procedure and an apparatus are proposed for effectively degassing fuel supply pumps, where the fuel used contains components which vaporize easily at elevated fuel temperatures, and particularly for leading off gas bubbles as they are formed whenever these occur or form in the immediate area of the pump intake. The entire pump and especially the intake area of the pump, which is preferably a roller piston pump, are embodied in open design, with the fuel supply pump arranged perpendicularly and the pumping area located at the bottom, so that gas bubbles forming in the fuel can be carried off before they are introduced into the pump.
The pump comprises a base plate with a telescoping rigid tubular member and an intermediate plate screwed onto the base plate, the intermediate plate having an eccentric boring, which encloses the groove disc of the thus-embodied roller piston pump. Further attached to this intermediate plate is a front cover which secures the entire pump area with respect to a housing surrounding the electromotor and has its interior contour so formed that the front cover can assume the functions of the pump. The base plate and the front cover which secure the pump are cut away in the area of the induction groove of the roller piston pump, so that the groove disc and rollers in this area are open. In this way it is possible to divert any gas bubbles which may be formed while they are still in the immediate intake area of the roller piston pump, so that the formation of large bubbles, which would hinder the induction of the liquid fuel, is prevented.
REFERENCES:
patent: 2832292 (1958-04-01), Edwards
patent: 3969044 (1976-07-01), Fussner et al.
patent: 3993416 (1976-11-01), Kato
Ringwald Peter
Rose Klaus
Ruhl Karl
Gluck Richard E.
Greigg Edwin E.
Robert & Bosch GmbH
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