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:
Aug. 01, 2006
Filed:
Sep. 14, 2001
BO Carlsson, Floda, SE;
Roy Ekdahl, Floda, SE;
Hans Ström, Kode, SE;
Aktiebolaget Electrolux, Stockholm, SE;
Abstract
Crankcase scavenged two-stroke internal combustion engine (), in which a piston ported air passage is arranged between an air inlet () and the upper part of a number of transfer ducts ('). The air passage is arranged from an air inlet () equipped with a restriction valve (), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (′) to at least one connecting port (′) in the engine's cylinder wall (). The connecting port (′) is arranged so that it in connection with piston positions at the top dead center is connected with flow paths (′) embodied in the piston (), which extend to the upper part of a number of transfer ducts (′). Each flow path through the cylinder and piston is to a great extent arranged in the cylinder's lateral direction, on the one hand in that the connecting port (′) and adjacent scavenging port (′) of the cylinder are shifted sideways in relation to each other along the periphery of the cylinder wall (), and on the other hand in that the transfer ducts (′) of the cylinder are running essentially in the cylinder's lateral direction away from each transfer port (′) respectively, i.e. tangentially in relation to the circumference of the cylinder wall ().