Internal-combustion engines – Frame construction – Horizontal cylinder
Reexamination Certificate
2007-02-27
2008-12-02
Kamen, Noah (Department: 3747)
Internal-combustion engines
Frame construction
Horizontal cylinder
Reexamination Certificate
active
07458359
ABSTRACT:
An internal combustion engine is provided with a crankcase partitioned into an upper section and a lower section. A fastening bolt is provided for fastening the upper and lower crankcase sections together in the vicinity of a crankshaft. A bolt hole is formed in the crankcase, and the fastening bolt is inserted and tightened in the bolt hole. An opening is formed at an end of the bolt hole within the upper crankcase, the end of the bolt hole is made to communicate with this opening, and the end of the fastening bolt protrudes into the opening when the engine is assembled, to lighten the crankcase, and in order to avoid concentrating stress in the bolt hole near the end of the bolt.
REFERENCES:
patent: 5860404 (1999-01-01), Tanaka
patent: 5931135 (1999-08-01), Yamada
patent: 6971362 (2005-12-01), Gunji et al.
patent: 2003/0041815 (2003-03-01), Kawakubo et al.
patent: 2006/0169224 (2006-08-01), Lenz et al.
patent: 4012475 (1990-10-01), None
patent: 19645691 (1998-05-01), None
patent: 19803242 (1998-08-01), None
patent: 19756390 (1999-06-01), None
patent: 19949929 (2001-01-01), None
patent: 10102764 (2002-07-01), None
patent: 1288460 (2003-03-01), None
patent: 1676989 (2006-07-01), None
patent: 187425 (1922-10-01), None
patent: 10-122042 (1998-05-01), None
Kono Naoki
Kuribara Hiroshi
Minami Kohji
Okubo Fumiaki
Yoneyama Masaki
Blackman William D.
Carrier Joseph P.
Carrier Blackman & Associates P.C.
Honda Motor Co. Ltd.
Kamen Noah
LandOfFree
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