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:
Jul. 25, 2006
Filed:
Jun. 20, 2005
Stephan Kleppner, Bretten, DE;
Hans-peter Braun, Renfrizhausen, DE;
Thomas Wieland, Stuttgart, DE;
Ludger Kuermann, Schwieberdingen, DE;
Winfried Eckart, Ludwigsburg, DE;
Stephan Kleppner, Bretten, DE;
Hans-Peter Braun, Renfrizhausen, DE;
Thomas Wieland, Stuttgart, DE;
Ludger Kuermann, Schwieberdingen, DE;
Winfried Eckart, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Known apparatuses for pumping fuel have at least two suction jet pumps, which each have one drive nozzle and one collection conduit and mixing conduit located downstream of the drive nozzle. A disadvantage is that the parallel suction jet pumps require a large amount of installation space, are embodied very massively, and therefore require a large amount of injection-molding compound for their manufacture. In the apparatus of the invention, the production costs and the required installation space for the suction jet pumps are reduced. According to the invention, the drive nozzles are surrounded by a single collection conduit, narrowing conically in the flow direction and located upstream of the mixing conduits.