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. 11, 2005
Filed:
May. 15, 2003
Werner Geyer, Berglen, DE;
Claus Fleig, Ludwigsburg, DE;
Jörg Schlossarczyk, Winnenden, DE;
Andreas Stihl AG & Co. KG, , DE;
Abstract
A two-cycle engine, especially for a portable, manually-guided implement, is provided. The engine has a cylinder with a combustion chamber delimited by a reciprocating piston. An inlet opens into the cylinder for supplying fuel/air mixture into a crankcase. The engine has an outlet for exhaust gases from the combustion chamber and at least one transfer channel, which, in prescribed positions of the piston, fluidically connects the crankcase with the combustion chamber. The engine has a clean air path that includes an air channel, a piston window and a transfer channel. In prescribed positions of the piston the air channel is fluidically connected via the piston window with an inlet window of the transfer channel. The direction of flow in the clean air path from inlet to outlet extends uniformly, in at least one piston position, and in a plane that extends perpendicular to the longitudinal axis of the cylinder.