Vehicular power unit

Details Vehicular power unit Vehicular power unit

2007-04-10

2007-04-10

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Cooling

With liquid coolant circulating means

C123S1950HC, C123S19800E, C180S346000

Reexamination Certificate

active

11389148

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.

REFERENCES:
patent: 4566577 (1986-01-01), Tsuboi et al.
patent: 5199395 (1993-04-01), Mizumura et al.
patent: 5445568 (1995-08-01), Fukuzawa et al.
patent: 2001/0050193 (2001-12-01), Yoshida et al.
patent: 2004/0244761 (2004-12-01), Takeuchi
patent: 2004/0247444 (2004-12-01), Oshita et al.
patent: 1477658 (2004-11-01), None
patent: 7-17699 (1995-03-01), None
patent: 3227972 (2001-09-01), None
patent: 7017699 (2006-03-01), None

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