Patent ID: 6877474
Filing Date: 2005-04-12
Classification: F01M,F02B

Abstract:
1. A four-stroke internal combustion engine ( 100 ) having a control chamber ( 16 ) and a cylinder ( 14 ), provided with at least one intake valve ( 12 ) and at least one exhaust valve, which has a crankshaft chamber ( 22 ) formed by a crankcase ( 26 ), in which a connecting rod ( 24 ) connected to the reciprocating piston ( 18 ) drives a mounted crankshaft ( 28 ), having an ignition device and having a supply device ( 30 ) for an air-fuel mixture, which is connected on one side via a connection line ( 32 ) to the control chamber ( 16 ) and on the other side, in the flow direction ( 54 ) of the air-fuel mixture, to the piston chamber ( 20 ) via a throttle device ( 34 ) positioned in a mixture intake port ( 36 ) and via a mixture supply line ( 38 ), which is connected via a non-return valve ( 40 a ) to the crankshaft chamber ( 22 ) and having an overflow channel ( 44 ) between the crankshaft chamber ( 22 ) and control chamber ( 16 ), in which a camshaft ( 46 ) is positioned for controlling the intake and exhaust valves ( 10 , 12 ), Characterized in that the mixture supply line (