Crankshaft of in-line four-cylinder engine

Details Crankshaft of in-line four-cylinder engine Crankshaft of in-line four-cylinder engine

2008-05-06

2008-05-06

Huynh, Hai (Department: 3747)

Internal-combustion engines

Vibration compensating device

C074S603000

Reexamination Certificate

active

11512204

ABSTRACT:
In a crankshaft of an in-line four-cylinder engine, an arm that is closest to a flywheel has a greater average thickness in a direction of the rotation axis of the crankshaft than those of other arms. Two of the arms that are coupled to both sides of the third journal from the flywheel each have a center of gravity closer to its own counterweight compared to the centers of gravity of the arms that face the two arms with corresponding crankpins in between. Accordingly, the rigidity against torsional deformation and the thickness of oil films on the journals are reliably maintained while suppressing increase in the weight of the entire crankshaft.

REFERENCES:
patent: 1661341 (1928-03-01), Oldson
patent: 1756659 (1930-04-01), Oldson
patent: 3538788 (1970-11-01), Patchen
patent: 4552104 (1985-11-01), Hara et al.
patent: 4730512 (1988-03-01), Ito et al.
patent: 4833940 (1989-05-01), Ito
patent: 4901692 (1990-02-01), Madden
patent: 5195398 (1993-03-01), Murrish et al.
patent: 5305656 (1994-04-01), Kamiya et al.
patent: 5481942 (1996-01-01), Baek
patent: 5758551 (1998-06-01), Ozeki
patent: 5875753 (1999-03-01), Ishikawa
patent: 6324942 (2001-12-01), Koike et al.
patent: 6626139 (2003-09-01), Horita et al.
patent: 6772654 (2004-08-01), Cobble
patent: 7234432 (2007-06-01), Nagira
patent: Y2-03-004850 (1991-02-01), None
patent: A-05-026297 (1993-02-01), None
patent: A-06-0193681 (1994-07-01), None
patent: A-07-071531 (1995-03-01), None
patent: A-08-121539 (1996-05-01), None

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