Patent ID: 7093569
Filing Date: 2006-08-22
Classification: B62M,F01M,F02B

Abstract:
1. In a power unit for a saddle-ride vehicle, comprising: an internal combustion engine and a transmission supported by a saddle-ride vehicle body having a front wheel in a front portion thereof; a crank shaft adapted to rotate and produce torque, said crank shaft being operatively connected to the internal combustion engine; an output shaft disposed in a rear portion of the power unit in a vehicle advancing direction to output the torque produced by the crank shaft to the exterior through the transmission; a water pump disposed below the crank shaft and adapted to be rotated with the torque transferred thereto from the crank shaft; an oil cooler mounted on a rear surface of the power unit in the vehicle advancing direction below the output shaft and at a position lower than the crank shaft; and a left crank case and a right crank case, wherein the oil cooler is fixed to a rear surface in a vehicle advancing direction of one of the left and right crank cases, wherein the water pump is disposed within the other of the left and right crank cases to which the oil cooler is fixed and is in proximity to the oil cooler, and wherein a rotary shaft of the oil pump and a rotary shaft of the water pump are coaxially disposed and interlocked with each other.