Crankshaft support structure of internal combustion engine

Details Crankshaft support structure of internal combustion engine Crankshaft support structure of internal combustion engine

2007-09-25

2007-09-25

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Frame construction

Horizontal cylinder

C123S1950HC

Reexamination Certificate

active

11259113

ABSTRACT:
A crankshaft support structure of an internal combustion engine, comprising a crankshaft having journal portions a saddle-shaped bearing caps respectively mounted on an undersurfaces of the journal support bases formed in a lower portion of the cylinder block in such a manner as to straddle the journal portions being accommodated in the bearing portions, whereby the journal portions are rotatably supported wherein, of the undersurface of each of the journal support bases, an undersurface portion overlapping with an edge portion of each of end faces on both sides of each of the bearing caps is formed to be a thick portion thicker than other portions, and a mount surface to be positioned on the undersurface overlapping with the thick portion of each of the bearing caps is formed along the thick portion.

REFERENCES:
patent: 2019657 (1935-11-01), Church
patent: 3117498 (1964-01-01), Johnson et al.
patent: 4237847 (1980-12-01), Baugh et al.
patent: 5016584 (1991-05-01), Inoue et al.
patent: 6216658 (2001-04-01), Pierro et al.
patent: 8-277747 (1996-10-01), None

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