Patent ID: 9376980
Filing Date: 2016-06-28
CPC Classification: F02D,Y02T

Claim Text:
1. A fuel injection device for an engine to perform premixed charge compression ignition combustion, comprising: a fuel injection valve configured to inject fuel into a combustion chamber of the engine; and controlling means for controlling the fuel injection valve to inject the fuel in multiple separate injections, wherein the controlling means controls a timing of a first fuel injection by the fuel injection valve to begin the first fuel injection before the compression top dead center and to carry out the first fuel injection on the retard side with respect to a timing when a premix duration immediately after the first fuel injection is minimum, and controls a timing of a second fuel injection by the fuel injection valve carried out after the first fuel injection in such a manner that a heat release rate waveform produced by the first fuel injection and the second fuel injection has a double-peaked shape after the second fuel injection is carried out.