Patent ID: 7296558
Filing Date: 2007-11-20
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A dual-injector fuel injection engine comprising: a cylinder block formed with a plurality of cylinder holes; a cylinder head attached on said cylinder block; an intake port formed in said cylinder head to extend from a combustion chamber obliquely upward with respect to an axis of each cylinder and serving as an intake passage for said each cylinder; an intake manifold connected to said intake port at a downstream end thereof and including an intake passage branch for said each cylinder; a surge tank provided upstream of said intake manifold and shared by a plurality of cylinders; an in-cylinder injector provided to said each cylinder to inject fuel directly into said combustion chamber; an intake pipe injector provided to said each cylinder to inject the fuel into said intake port; a first delivery pipe connected to all in-cylinder injectors to supply the fuel thereto; a second delivery pipe connected to all intake pipe injectors to supply the fuel thereto, wherein said in-cylinder injector is positioned below said intake port, when seen from an axial direction of a crank shaft, and attached to said cylinder head, and said intake pipe injector and said second delivery pipe being attached to said intake manifold to be close to said intake port on the opposite side of said in-cylinder injector with respect to said intake port, when seen from the axial direction of said crank shaft.