Patent Number: 7,201,119

Title: Vehicular power unit

Abstract: A vehicular power unit including a drive-side transmission sprocket wheel provided on an end of an output shaft that protrudes from one side of a crankcase, an endless transmission belt for transmitting power to a driving wheel wound the sprocket wheel. The endless transmission belt transmits power from the crankshaft to a transmission housed in the crankcase. A water pump is arranged on the same side of the crankcase in a position between the crankshaft and the output shaft. Further, the water pump is disposed inside the drive-side transmission sprocket wheel in a direction along the axis of an output shaft. This configuration enables the vehicular power unit to be formed in a compact size in a direction along an axis of a crankshaft.

Inventors: Tawarada; Yuichi (Saitama, JP), Shiozaki; Eiko (Saitama, JP), Kawakubo; Hiroyuki (Saitama, JP), Nakai; Kazuyuki (Saitama, JP)

Assignee: Honda Motor Co., Ltd.

International Classification: F01P 5/10 (20060101); F02B 61/04 (20060101); F02F 1/10 (20060101)

Expiration Date: 2019-04-10 0:00:00