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. 24, 2015
Filed:
Mar. 14, 2014
Andreas Stihl Ag & Co. KG, Waiblingen, DE;
Lutz Volckart, Fellbach, DE;
Michael Grether, Waiblingen, DE;
ANDREAS STIHL AG & CO. KG, Waiblingen, DE;
Abstract
An internal combustion engine has an intake device having an air filter and at least one port. Combustion air is sucked in from the clean side of the air filter to the internal combustion engine via the port. The intake device has air trunking, in which at least a first section and a second section of the port are guided. The air trunking has a longitudinal center axis, wherein combustion air flows in the first section of the port in a first direction of flow running in the direction of the longitudinal center axis. The combustion air flows in the second section of the port in a second direction of flow oriented in an opposite direction to the first direction of flow and in the direction of the longitudinal center axis. As a result, a compact overall size is achieved with port length.