Patent ID: 8191800

Claim:
A fuel injection valve comprising: an electromagnetic solenoid assembly, and a valve main body including a valve body operated by said electromagnetic solenoid assembly to be brought into and out of contact with a valve seat of a valve seat member for controlling the injection of fuel from an injection port having an axis inclined relative to an end face of said valve seat member; wherein said injection port includes a first injection port disposed at a downstream side of said valve seat, and a second injection port disposed at a downstream side of said first injection port and having a diameter larger than that of said first injection port; central axis of said first injection port and central axis of said second injection port being parallel to each other; a bottom wall of said second injection port intersecting with the central axis of said first injection port; and wherein the central axis of said second injection port is out of alignment with respect to the central axis of said first injection port so that W 1 >W 2 is established when M 1 >M 2 , where M 1 is the largest length of a longer-side line along which a plane including the central axis of said valve seat member and the central axis of said second injection port intersects with an inner wall of said second injection port; M 2 is the smallest length of a shorter-side line along which said plane intersects with an inner wall of said second injection port; W 1 is the distance from the inner wall of said first injection port to said longer-side line of said second injection port as measured within said plane; and where W 2 is the distance from the inner wall of said first injection port to said shorter-side line of said second injection port as measured within said plane, wherein W 2 >0, wherein the longer-side line and the shorter-side line of the second injection port extend perpendicular to an extending direction of the distances W 1 and W 2 .