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:
Jun. 25, 2019
Filed:
Feb. 01, 2018
Andreas Stihl Ag & Co. KG, Waiblingen, DE;
Andreas Baehner, Gronau, DE;
Michael Dietenberger, Waiblingen, DE;
Martin Kiesner, Weinstadt, DE;
Florian Hoche, Besigheim, DE;
Klaus Geyer, Sulzbach, DE;
Steffen Bantle, Korb, DE;
Friedrich Hollmeier, Rudersberg, DE;
Frederik Herrmann, Waiblingen, DE;
Jochen Gantert, Urbach, DE;
Karsten Schmidt, Waiblingen, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
The invention relates to a method for adapting the composition of a mixture of fuel and combustion air. The mixture is supplied to a combustion chamber of a mixture-lubricated combustion engine in a work apparatus. The fuel is supplied to the combustion engine via a controlled fuel valve. In an operating state (I) of the combustion engine, the quantity of fuel is metered by the fuel valve. For the purpose of adapting the composition of the mixture, the combustion engine is shifted into a special operating state (II) which differs from the normal operating state (I). After starting, the combustion engine is operated in a first rotational speed range (B) for a prespecified operating time (T), wherein, after the prespecified operating time (T) has elapsed, the operating state (II) for adapting the composition of the mixture is initiated by a prespecified user action.