Patent ID: 7021280
Filing Date: 2006-04-04
Classification: F02B,F02M,Y02T

Abstract:
1. An in-cylinder fuel injection internal-combustion engine comprising: a combustion chamber with a cylinder; a fuel injection valve that directly injects a fuel toward a center line of the cylinder from a direction that makes an angle with the center line of the cylinder; and an ignition plug that is arranged substantially at a vertex of the cylinder, wherein the fuel injection valve includes an injection opening that is arranged at a tip of the fuel injection valve, and from which a spray is injected in such a manner that the spray has a shape in substantially a V-shape that gradually widens toward an end in directions from a portion closer to the ignition plug to portions closer to a surface of a side wall of the combustion chamber, the shape formed on a cross-section perpendicular to a direction of injection.