Patent ID: 6089476
Filing Date: 2000-07-18
Classification: F02M

Abstract:
A fuel injection valve for an internal combustion engine, comprising:a valve body driven by driving means between an open position and a closed position;a fuel jet adjusting plate for atomizing fuel injected when the valve body assumes the open position;a plurality of first nozzle holes arranged along a first circle on said fuel jet adjusting plate, and coaxial with a central axis of the valve body; anda plurality of second nozzle holes arranged along a second circle concentric with the first circle and having a diameter larger than that of the first circle,wherein each of the second nozzle holes extends through the fuel jet adjusting plate along a respective second hole axis and wherein the second hole axes form corresponding second acute angles with a plane perpendicular to the central axis and wherein each of the first nozzle holes extends through the fuel jet adjusting plate along a respective first hole axis, the first hole axes forming a corresponding plurality of first acute angles with the plane perpendicular to the central axis and wherein the second acute angles are smaller than the first acute angles.