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. 20, 2009
Filed:
Jul. 08, 2008
Andreas Bähner, Weinstadt, DE;
Andreas Lingen, Althütte, DE;
Hans Nickel, Weissach, DE;
Bärbel Nickel, Legal Representative, Weissach, DE;
Claus Naegele, Stuttgart, DE;
Andreas Bähner, Weinstadt, DE;
Andreas Lingen, Althütte, DE;
Hans Nickel, Weissach, DE;
Bärbel Nickel, legal representative, Weissach, DE;
Claus Naegele, Stuttgart, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A carburetor () has an intake channel () wherein a throttle element and a choke element are arranged with the choke element being upstream of the throttle element. The choke element is displaceable between an operating position () and at least one starting position (). A first fuel path is provided which supplies fuel to the intake channel section () in dependence upon the underpressure present therein. A first controllable valve () for controlling the supplied fuel quantity is mounted in the first fuel path. In order to achieve an adapted fuel supply in different operating states, a second fuel path is provided which defines a bypass line to the first valve (). A second valve () is mounted in the second fuel path. A method for operating the carburetor () provides that the second valve () is actuated in dependence upon at least one operating parameter of the carburetor ().