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. 20, 2004
Filed:
Jul. 22, 2002
Stanislaw Bodzak, Elsbethen, AT;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An internal gear pump for pumping fuel from a suction conduit ( ) into a pressure conduit ( ) has a pump housing ( ) in which an internal ring gear ( ) and an externally toothed pinion ( ), the latter driven by a drive shaft ( ), are supported. The pinion ( ) is disposed eccentrically to the ring gear ( ) and cooperates with the ring gear ( ) to generate a pumping action. The pinion ( ) and the ring gear ( ) rest with their one face end on the pump housing ( ) and with their other face end on a sealing plate ( ). To lengthen the service life of the internal gear pump, the suction conduit ( ) is disposed in the sealing plate ( ). The sealing plate ( ) is movable relative to the pump housing ( ) such that the spacing between the suction conduit ( ) and the pressure conduit ( ) can be varied.