Patent · US Expired

Apparatus for pumping fuel

US7080632B2 · kind B2 · utility

3Cited by

6References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Stephan Kleppner · Bretten, DE
Hans-Peter Braun · Sulz am Neckar, DE
Thomas Wieland · Stuttgart, DE
Ludger Kuermann · Schwieberdingen, DE
Winfried Eckart · Freiberg, DE

Key dates

Filing date	Jun 20, 2005
Grant date	Jul 25, 2006
Priority date	—
Expiry date	Jun 20, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87265
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.