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:
Feb. 15, 2011
Filed:
Sep. 07, 2006
Applicant:
Rolf Graf, Speyer, DE;
Inventor:
Rolf Graf, Speyer, DE;
Assignee:
Continental Automotive GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 37/04 (2006.01); F04B 17/00 (2006.01); F04B 35/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method for operating a fuel pump in order to guide fuel from the fuel container of an internal combustion engine, the electric energy, which is in the form of pulses, is periodically guided to the fuel pump and the duration of the pulses is controlled according to the fuel required by the internal combustion engine. The frequency of the pulses is controlled in such a manner that, in the event of low pump rate of the fuel pump, the frequency is controlled to a higher level than in the even of a high pump rate.