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. 04, 2009
Filed:
Mar. 31, 2004
Jens Wolber, Gerlingen, DE;
Thomas Frenz, Noerdlingen, DE;
Karsten Hinn, Giessen, DE;
Timm Hollmann, Ludwigsburg, DE;
Christian Wiedmann, Ludwigsburg, DE;
Stefan Smetana, Ludwigsburg, DE;
Laurent Nack, Stuttgart, DE;
Jens Wolber, Gerlingen, DE;
Thomas Frenz, Noerdlingen, DE;
Karsten Hinn, Giessen, DE;
Timm Hollmann, Ludwigsburg, DE;
Christian Wiedmann, Ludwigsburg, DE;
Stefan Smetana, Ludwigsburg, DE;
Laurent Nack, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for operating an internal combustion engine having a fuel pump with a drive shaft is provided, the fuel pump conveying fuel into at least one fuel-collection line, the fuel being subsequently conveyed to at least one combustion chamber via at least one fuel-injection device. In the method, a quantity of the fuel conveyed by the fuel pump into the fuel-collection line is set by means of a valve device. The valve device is configured to selectively connect a discharge side of the fuel pump to a low-pressure region of the fuel pump (during deactivation phase), and selectively disconnect the discharge side from the low-pressure region (during supply phase). In supplying the quantity of fuel, a supply rate, defined as the number of supply phases of the fuel pump per rotation of the drive shaft, is determined as a function of at least one operating parameter of the internal combustion engine.