Patent ID: 6425367
Filing Date: 2002-07-30
Classification: F02B,F02D,Y02T

Abstract:
A compression self-ignition gasoline internal combustion engine, comprising:a fuel injector through which gasoline fuel is injected uninterruptedly within a combustion chamber of an engine cylinder; a piston of the engine cylinder whose compression action causes a mixture of air with gasoline fuel within the combustion chamber to be self-ignited; an intake valve whose open timing is set to a mid-way point through a suction stroke of the piston; an exhaust valve whose closure timing is set to a mid-way point through an exhaust stroke thereof; and a fuel injection controlling section that controls gasoline fuel injection timing and quantity per a combustion cycle injected through the fuel injector in such a manner as to set a first gasoline fuel injection to be carried out during a minus valve overlap interval during which both of the exhaust and intake valves are closed and as to set a second gasoline fuel injection to be carried out during at least one of the suction stroke and the subsequent compression stroke.