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. 06, 2005
Filed:
May. 17, 2002
Wolfgang Braun, Ditzingen, DE;
Bernd Mahr, Plochingen, DE;
Martin Kropp, Tamm, DE;
Hans-christoph Magel, Pfullingen, DE;
Wolfgang Braun, Ditzingen, DE;
Bernd Mahr, Plochingen, DE;
Martin Kropp, Tamm, DE;
Hans-Christoph Magel, Pfullingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection system includes a pressure chamber having a displacable piston which can be subjected to pressure via a low-pressure-side pressure booster chamber for compressing the fuel in a high-pressure-side pressure booster chamber to be delivered to an injector. The stroke of the piston is controllable essentially by the pressure in a differential chamber of the pressure chamber and is used to vary the fuel pressure delivered to the injector. Provision is made for enlarging the cross section of the outlet cross section out of the differential chamber of the pressure chamber are provided. The fuel pressure during the injection can be varied. A pressure increase can be simply achieved.