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:
Jul. 14, 2015
Filed:
Oct. 14, 2010
Rainer Wilms, Markgroeningen, DE;
Matthias Schumacher, Weissach, DE;
Joerg Kuempel, Ludwigsburg, DE;
Matthias Maess, Boeblingen, DE;
Rainer Wilms, Markgroeningen, DE;
Matthias Schumacher, Weissach, DE;
Joerg Kuempel, Ludwigsburg, DE;
Matthias Maess, Boeblingen, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
In a fuel injection system of an internal combustion engine, fuel is delivered from a high-pressure pump into a fuel rail. The quantity of the delivered fuel is influenced by a quantity control valve which is activated by an electromagnetic actuating device. The level of control of the quantity control valve during the transition from the closed state to the open state of the quantity control valve is provided in the form of a sufficiently flat, descending progression which allows a robust control of the opening motion with regard to the varying specimen properties.