Patent ID: 6148792
Filing Date: 2000-11-21
Classification: F02B,F02F,Y02T

Abstract:
A spark ignition internal combustion engine having a variable volume combustion chamber (10) defined by a cylinder head, a cylinder bore (14) and a piston (16) reciprocating within the cylinder bore (16), the cylinder head having a spark plug (40) and intake and exhaust ports (20,30) leading through intake and exhaust valves (24,34) into the combustion chamber, wherein a fuel injector (50) is provided in the combustion chamber for direct injection of liquid fuel, the fuel injector (50) being positioned in an unswept part of the cylinder bore (14) and being oriented such that the fuel is aimed by the injector (50) along a line of sight that extends from the injector (50) through the mouth of the intake valve (24) when the intake valve is open and reaches directly into the end of the intake port (20), whereby fuel droplets from the injector (50) may pass into the end of the intake port without first impinging on the rear surface of the intake valve.