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:
Jan. 20, 2009
Filed:
Apr. 22, 2005
Dan Gunnarsson, Norrhammar, SE;
Goran Landen, Huskvarna, SE;
Dan Gunnarsson, Norrhammar, SE;
Goran Landen, Huskvarna, SE;
Husqvarna AB, Huskvarna, SE;
Abstract
Arrangement in an internal combustion engine, said arrangement comprises a fan for supplying combustion air to a carburetor. The fan comprises a fan housing () and a fan wheel () provided with a number of wings () extending in substantially radial direction from the axle () of rotation for the fan wheel (). The arrangement further comprises an air inlet () for combustion air to the carburetor arranged at the outer edge of the wings () on the fan wheel (). The outer edge of the wings () is arranged in a direction substantially parallel to the axle () of rotation for the fan wheel(). The side of the air inlet () closest to the outer edge of the wings () on the fan wheel () is arranged at an angle of 10° to 60° in relation to the outer edge of the wings () on the fan wheel () to reduce the amount of sound generated.