Patent ID: 7478613

Claim:
Arrangement in an internal combustion engine, said arrangement comprising, an fan for supplying combustion air to a carburetor, said fan comprising a fan housing ( 11 ) and a fan wheel ( 12 ) provided with a number of wings ( 13 ) extending outwards from the axle ( 15 ) of rotation for the fan wheel ( 12 ), an air inlet ( 14 ) for combustion air to the carburetor arranged close to the outer edge ( 16 ) of the wings ( 13 ) on the fan wheel ( 12 ), said outer edge ( 16 ) of the wings ( 13 ) arranged in a direction substantially parallel to the axle ( 15 ) of rotation for the fan wheel ( 12 ), characterized in that the side ( 17 ) of the air inlet ( 14 ) closest to the outer edge ( 16 ) of the wings ( 13 ) on the fan wheel ( 12 ) is arranged at an angle of 10° to 60° in relation to the outer edge ( 16 ) of the wings ( 13 ) of the fan wheel ( 12 ) seen in axial direction of the fan wheel ( 12 ) to reduce the amount of sound generated.