Fuel supply system for motorcycle

摘要

The motorcycle includes a power unit having a crankcase of an internal combustion engine, the fuel injection system mounted to the power unit, a fuel tank, a fuel pump unit by which fuel in the fuel tank is supplied to the fuel injection system, and the fuel filter device. The fuel supply system for the motorcycle includes the fuel filter device that is cylindrical in shape, the pressure regulator cylindrical in shape is mounted to an outside portion of the fuel filter device, with its cylinder axis inclined against the cylinder axis of the fuel filter device. A fuel pipe extends from an outlet pipe of the pressure regulator to the fuel injection system in a connecting manner.

主权项

1. A fuel supply system for a motorcycle comprising:
a power unit having a crankcase of an internal combustion engine; a fuel injection system mounted to the power unit; a fuel tank; a fuel pump unit arranged outside the fuel tank, wherein fuel in the fuel tank is supplied to the fuel injection system; a fuel filter device; wherein the fuel filter device is cylindrical in shape; a pressure regulator cylindrical in shape is mounted to an outside portion of the fuel filter device, a cylinder axis of the pressure regulator being inclined at an angle α with respect to a cylinder axis of the fuel filter device; and a first fuel pipe extending between an outlet part at an upper portion of the fuel filter device to an inlet part at a central portion along a length of the pressure regulator, wherein the fuel pump unit is held in place by a mounting stay having an annular part and a right arm part, the right arm part extending from the annular part to a support member that is attached to a right center frame of the motorcycle, wherein the fuel filter device includes an outer case with a support part side case provided on an inner side in a vehicle width direction and a cover part provided on an outer side in the vehicle width direction and covering the support part side case, wherein the fuel filter device is mounted on the motorcycle; the support part side case is supported by an engine hanger boss, for fixing the power unit to a body frame of the motorcycle, and the crankcase; and the cover part is fixed to the support part side case wherein a claw portion provided on its one end side is inserted into the support part side case and its other end side is fastened to the support part side case by a fastening bolt, and wherein a lower portion of the outer case is fastened by a support bolt to a rear bracket provided for fixing a rear portion of the crankcase to the left center frame of the motorcycle, and is thereby supported on the crankcase, and the rear bracket is fixed to the left center frame by a rear bracket support member.