Patent ID: 6394367
Filing Date: 2002-05-28
Classification: F02M,Y10S

Abstract:
A fuel injection valve comprising:an orifice plate having a plurality of discharge orifices formed therein; a valve seat disposed upstream of the discharge orifices and having a cylindrical fuel passage formed therein; a fuel cavity located between the cylindrical fuel passage and the orifice plate directly above the discharge orifices; and a valve member supported for reciprocating movement into and out of contact with the valve seat, wherein the fuel injection valve satisfies the inequalities &phgr;D1+&phgr;dâ€ƒwherein &phgr;D1 is the diameter of the cylindrical fuel passage, &phgr;d is the diameter of each discharge orifice, &phgr;P is the diameter of an imaginary circle passing through the center of each discharge orifice, and t is the depth in the axial direction of the fuel cavity.