Patent ID: 7201119
Filing Date: 2007-04-10
Classification: F01P,F02B

Abstract:
1. A vehicular power unit provided with an engine (E) in which a crankshaft is rotatably supported by a crankcase and a transmission (M) housed in the crankcase for shifting power transmitted from the crankshaft, the vehicular power unit comprising: a drive-side transmission sprocket wheel provided to an end of an output shaft of the transmission (M) that protrudes from one side of the crankcase; an endless transmission belt wound around the drive-side transmission sprocket wheel, the endless transmission belt for transmitting power to a driving wheel; a water pump arranged on the one side of the crankcase in a position that is between the crankshaft and the output shaft, wherein the water pump is arranged inside the drive-side transmission sprocket wheel in a direction along an axis of the output shaft.