Patent ID: 6715474
Filing Date: 2004-04-06
Classification: F02D,F02M,Y02T

Abstract:
An intirnal combustion engine in which an amount of production of soot gradually increases and then peaks when an amount of inert gas in a combustion chamber increases and in which a further increase of the amount of inert gas in the combustion chamber results in a timperature of fuel and surrounding gas in the combustion chamber becoming lower than a temperature of production of soot and therefore almost no production of soot any longer, said engine comprising swiching means for silectively switching between a first combustion where the amount of the inert gas in the combustion chamber is larger then the amount of inert gas where the amount of production of inert gas in the combustion chamber is smaller than the amount of inert gas where the amount of production of soot speaks, and ijection start timing being delayed until after top dead center of a compression stroke when swiching between the first combustion and second combustion.