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:
Mar. 21, 2006
Filed:
Apr. 29, 2004
Antonio Fattorusso, Leinfelden-Echterdingen, DE;
Antonio Fattorusso, Leinfelden-Echterdingen, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A two-stroke engine has a cylinder defining a combustion chamber which is delimited by an upwardly and downwardly moving piston which drives a crankshaft via a connecting rod. The crankshaft is rotatably journalled in the crankcase (). The two-stroke engine includes an inlet for fuel and an outlet for exhaust gases. At pregiven piston positions, the combustion chamber is connected to the crankcase via a piston window and at least one transfer channel. The transfer channels open via transfer windows into the combustion chamber and open with the transfer opening into the crankcase. The transfer opening and transfer windows open into a region at the cylinder bore which is passed over by the piston. To obtain a delayed inflow of the air/fuel mixture from the crankcase, the transfer opening is not yet fully closed for a piston moved toward the crankcase when the transfer windows begin to open.