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:
Nov. 28, 2006
Filed:
Apr. 19, 2006
Hans Nickel, Weissach, DE;
Claus Naegele, Stuttgart, DE;
Hans Nickel, Weissach, DE;
Claus Naegele, Stuttgart, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A method is for controlling the metering of fuel in a fuel system () of an internal combustion engine () which is to be started manually. This control is with a currentless open electromagnetic valve (). The electromagnetic valve () is only switched into the closed state when a supply voltage (U) is applied and current flows. Within a blocking time (), which is pregiven by an engine control (), a supply voltage (U) is switched onto the excitation coil of the electromagnetic valve () only and the valve () is supplied with current only when an underpressure is present in the intake channel () of the fuel system (); whereas, in the remaining time span () of the blocking time (), wherein no underpressure is present, the control unit () switches off the supply voltage (U) and the valve () is in the currentless open state.