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:
Aug. 10, 2004
Filed:
Sep. 09, 2002
Helmut Rembold, Stuttgart, DE;
Klaus Joos, Walheim, DE;
Jens Wolber, Gerlingen, DE;
Thomas Frenz, Noerdlingen, DE;
Markus Amler, Leonbert-Gebersheim, DE;
Hansjoerg Bochum, Novi, MI (US);
Hans-Peter Harnisch, Cadolzburg, DE;
Peter Ropertz, Oberriexingen, DE;
Klaus Lang, Stuttgart, DE;
Wolfgang Saatmann, Bangalore, IN;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An injection system for internal combustion engines is proposed, in which once the engine has been turned off, a pressure equalization is established between the intake side and the pressure side of the high-pressure fuel pump. This prevents uncombusted fuel from reaching the combustion chambers of the engine. The pressure prevailing on the pressure side and the intake side when the engine is off furthermore assures that vapor bubbles cannot form, and this makes starting the engine easier.