Patent ID: 6267096
Filing Date: 2001-07-31
Classification: F02B,F02F,Y02T

Abstract:
An in-cylinder injection internal combustion engine having a cylinder bore, a cylinder head with four quadrants, a piston positioned in said cylinder bore and a combustion chamber formed by the cylinder head lower wall and the top surface of the piston, said engine comprising:a helicoid intake port positioned in a first quadrant of said cylinder head lower wall;an axially directed intake port positioned in a second quadrant of said cylinder head lower wall;said helicoid and axially directed intake ports producing a swirl-type air flow in the cylinder;an exhaust port positioned in a third quadrant of said cylinder head lower wall;a spark plug positioned in said cylinder head lower wall substantially along the central axis of the cylinder; anda fuel injector positioned in said fourth quadrant of said cylinder head lower wall for directing fuel toward said helicoid intake port.