Patent ID: 6354278
Filing Date: 2002-03-12
Classification: F01L,F02B,F02F,F02M

Abstract:
An engine of an outboard motor comprising:an outer casing; a plurality of cylinders arranged vertically in the outer casing; a cylinder head to which the cylinders are mounted and in which a valve moving mechanism including a cam shaft is housed; a cylinder block disposed in the outer casing; a crank case joined to the cylinder block; a crank shaft disposed vertically at the joining portion between the crank case and the cylinder block; a fuel pump being provided with a plunger and sucking a fuel from a fuel tank through a reciprocal motion of the plunger; a plurality of bearing bosses each disposed between adjacent cylinders, said bearing bosses supporting the cam shaft; and a pump driving cam mounted on the cam shaft and adapted to drive the fuel pump; wherein a drive being supported by the bearing bosses is disposed between the adjacent cylinders and is adapted to transfer a rotational motion of the pump driving cam to the plunger so as to carry out a reciprocal motion thereof.