Vehicular power unit
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United States of America Patent
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-
Apr 10, 2007
Grant Date -
Sep 28, 2006
app pub date -
Mar 27, 2006
filing date -
Mar 28, 2005
priority date (Note) -
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status (Latency Note)
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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.
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