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:
May. 05, 2009
Filed:
May. 29, 2006
Applicant:
Bernd Schroeder, Esslingen, DE;
Inventor:
Bernd Schroeder, Esslingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 37/00 (2006.01); F02M 57/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel supply system comprises a piston pump having a working chamber and an adjustable throttle device, arranged upstream of the working chamber and adapted to modify the flow of fuel supplied to the working chamber. The invention is characterized in that the throttle device, in the closed position, allows a leakage volume to arrive at the working chamber. The piston pump comprises a leakage pump device which supplies at least a part of the leakage volume from the working chamber to a low-pressure zone located upstream of the throttle device.