Patent ID: 7096848
Filing Date: 2006-08-29
Classification: F02B,F02F,Y02T

Abstract:
1. A direct injection diesel engine comprising: a combustion chamber which is provided in a top face of a piston and which opens toward a cylinder head; and a fuel injection nozzle provided in the cylinder head for injecting fuel toward said combustion chamber, wherein said combustion chamber comprises: wherein the fuel injection from said fuel injection nozzle is continuously performed first into said second volume and then into said first volume in association with movement of said piston; and wherein during at least a portion of the engine operation, an injection period beginning at a start of the fuel injection and ending when the fuel injection reaches a border section between said first volume and said second volume is set to be in a range of 40% to 70% of a total fuel injection period by controlling a timing for start of the fuel injection in accordance with at least one of engine speed and engine load.