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:
Oct. 19, 2010
Filed:
Apr. 28, 2008
Heiko Roβkamp, Adelberg, DE;
Georg Maier, Kernen, DE;
Tim Gegg, Remseck, DE;
Wolfgang Layher, Besigheim, DE;
Arno Kinnen, Fellbach, DE;
Christine Hallé, Ebersbach Fils, DE;
Heiko Roβkamp, Adelberg, DE;
Georg Maier, Kernen, DE;
Tim Gegg, Remseck, DE;
Wolfgang Layher, Besigheim, DE;
Arno Kinnen, Fellbach, DE;
Christine Hallé, Ebersbach Fils, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A method for operating an internal combustion engine having a fuel system which feeds fuel at a given pressure to a metering valve provides that a controller defines the opening time and the closing time of the metering valve and correspondingly actuates the metering valve so that the metering valve opens and closes at the defined times. In order to permit precise metering of fuel even in high-speed internal combustion engines there is provision for the controller to define at least one of the times for the opening or closing of the metering valve while taking into account the counterpressure actually prevailing at the outlet opening of the metering valve.