The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 1996
Filed:
Oct. 05, 1994
Applicant:
Inventors:
Werner Schmid, Tamm, DE;
Manfred Treter, Moeglingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417203 ; 417205 ; 4174233 ; 415 551 ;
Abstract
A device for delivering fuel from a storage tank to the engine of a motor vehicle, having a two-stage feed pump driven to rotate by an electric drive motor. The preliminary stage of the feed pump is embodied as a side channel pump whose partially ring-shaped supply conduit has in its pump course a cross sectionally reduced region, which is constituted by means of a reduction of the conduit depth and in which the fuel flowing through the supply conduit is maintained at a constant pressure level so that the length of the supply conduit effective for a pressure increase can be reduced to achieve a quick increase of delivery pressure.