Patent ID: 6431842
Filing Date: 2002-08-13
Classification: F02M,F04B

Abstract:
A fuel injection pump comprising:a movable member adapted to pressurize fuel sucked into a fuel pressurization chamber; a cylinder supporting the movable member slidingly and reciprocatingly; a cam mounted on and rotated with a drive shaft; a driving force transmission member provided between the cam and movable member, said transmission member adapted to drive the movable member reciprocatingly in accordance with a rotation of the cam; a device for urging the movable member toward the driving force transmission member; and a regulating means adapted to regulate a reciprocating movement of the movable member when the movable member is lifted beyond a top dead center, wherein the movable member has a plunger opposed to the fuel pressurization chamber, and a connecting member receiving an urging force of the urging device toward the driving force transmission member and moved reciprocating with the plunger; the cylinder having an inner sliding surface on which the plunger is moved slidingly, and an inner fitting surface provided on the side of the inner sliding surface which is close to the driving force transmission member and having a diameter larger than that of the inner sliding surface; and the connecting member being press fitted into the inner fitting surface when the movable member is lifted beyond the top dead center, whereby a reciprocating movement of the movable member is regulated.