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. 26, 2008
Filed:
Dec. 19, 2003
BO Carlsson, Alingsås, SE;
Pär Martinsson, Jönköping, SE;
Mikael Holmdahl, Jönköping, SE;
Ulf Olander, Odeshog, SE;
Bo Carlsson, Alingsås, SE;
Pär Martinsson, Jönköping, SE;
Mikael Holmdahl, Jönköping, SE;
Ulf Olander, Odeshog, SE;
Husqvarna AB, Huskvarna, SE;
Abstract
A cylinder () for a crankcase scavenged two-stroke engine, comprising a cylinder bore () with centre line () and on opposite sides of the cylinder located closed transfer ducts ('), which cylinder () has an underside () essentially perpendicular towards the cylinder bore (), intended to be connected to a crankcase () in a parting plane (A), and besides an inlet () for air/fuel mixture, the cylinder is provided with at least one inlet (′) for additional air to the combustion chamber, which inlet for additional air runs through a cylinder wall () and via a recess in the piston and a transfer port (′) leads down into the transfer ducts (′). Especially the transfer ducts (′) each have an upper section (′) leading from the transfer port (′) and in a tangential direction in relation to the cylinder bore () and is followed by an essentially right angled bend (3′) leading into a lower section (′) leading into the parting plane (A), and at least the right-angled bend of each transfer duct is located on opposite sides of an exhaust duct () and during at least a part of the right-angled bend (′) the transfer ducts approach each other.