Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate
2005-08-30
2005-08-30
Lo, Weilun (Department: 3747)
Internal-combustion engines
Lubricators
Crankcase, pressure control
C123S1950AC, C184S006500, C180S218000
Reexamination Certificate
active
06935298
ABSTRACT:
There is provided a lubricating device for a motorcycle combustion engine, which allows the motorcycle to exhibit a desired banking angle and also to have a lower center of gravity. The lubricating device is designed to supply a lubricant oil to an in-line multicylinder combustion engine (E) mounted on a motorcycle frame structure (FR) and having a crankcase (CR) and includes a main gallery (21) formed in a lower portion of the crankcase (CR) and journal oiling passages (25) branched off from the main gallery (21) for supplying the lubricant oil towards crank journals (23b) of a crankshaft (23) of the engine. The main gallery (21) has opposite end portions (21a,21a) inclined to extend outwardly upwardly.
REFERENCES:
patent: 4721077 (1988-01-01), Fukuo et al.
patent: 6227155 (2001-05-01), Tosaka et al.
patent: 6739291 (2004-05-01), Kawakubo et al.
patent: 2003/0101960 (2003-06-01), Tsuchiya et al.
patent: 2001-227317 (2001-08-01), None
Matsuda Yoshiharu
Ueshima Atsushi
Kawasaki Jukogyo Kabushiki Kaisha
Lo Weilun
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