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:
Dec. 10, 2002
Filed:
Apr. 11, 2001
Lars Bergmann, Welzheim, DE;
Heiko Rosskamp, Adelberg, DE;
Igor Klaric, Korb, DE;
Michael Raffenberg, Fellbach, DE;
Peter Pretzsch, Schorndorf, DE;
Andreas Stihl AG & Co., Waiblingen, DE;
Abstract
A cylinder is produced of die cast metal and is for a two-stroke engine in a portable handheld work apparatus such as a motor chain saw. A combustion chamber ( ) is formed in the cylinder ( ) and this combustion chamber is delimited by a piston ( ). In the cylinder wall ( ), there is an outlet ( ) for conducting away the combustion gases from the combustion chamber ( ). Transfer channels ( ) are provided which open into the combustion chamber ( ) via transfer windows ( ) and supply the operating medium from the crankcase ( ) needed for operating the two-stroke engine. The transfer channels ( ) are configured in the cylinder wall ( ) as channels opening radially to the outside and are closed by a seated cover ( ).