Support structure in crank mechanism and component...

Details Support structure in crank mechanism and component... Support structure in crank mechanism and component...

2006-12-12

2006-12-12

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S492000, C384S617000, C384S625000

Reexamination Certificate

active

07147382

ABSTRACT:
A component of a crank mechanism is incorporated in the crank mechanism that converts reciprocating motion of a piston to rotary motion by means of a crank pin, a crank arm and a crank shaft via a connecting bar, and has a hydrogen content of no more than 0.5 ppm, austenite crystal grains of a grain size number exceeding 10, or a fracture stress value of no less than 2650 MPa. Thus, a support structure in and a component of a crank mechanism ensuring a long fatigue life, high anti-crack strength, and a reduced rate of secular dimensional change to improve dimensional stability, can be obtained.

REFERENCES:
patent: 5180450 (1993-01-01), Rao
patent: 6012851 (2000-01-01), Hirakawa et al.
patent: 6224688 (2001-05-01), Takemura et al.
patent: 6290398 (2001-09-01), Fujiwara et al.
patent: 6699335 (2004-03-01), Murakami et al.
patent: 2003/0123769 (2003-07-01), Ohki
patent: 08-4774 (1996-01-01), None
patent: 11-101247 (1999-04-01), None

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