Patent ID: 7389754
Filing Date: 2008-06-24
Classification: F02B,F02M,Y02T

Abstract:
1. A system ( 1 ) for supplying an air-fuel mixture to a cylinder ( 2 ) of a two-stroke crankcase scavenged internal combustion engine, comprising a carburettor ( 3 ) having a throttle valve ( 4 ) and feeding an air-fuel mixture to an intake port of the cylinder, said system further has a transfer passage ( 6 ) between a crankcase chamber and a combustion chamber of the engine, and a supply conduit ( 8 ) for additional air ( 9 ) having an air valve ( 10 ) for the additional air, and said supply conduit for additional air ( 9 ) being adapted to discharge the additional air into the top portion of the transfer passage ( 6 ), either directly through a check-valve or via a recess in an engine piston, during a portion of a cycle of said two-stroke internal combustion engine, characterised in that said air valve ( wherein a shaft (