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Title:
HALF-SPLIT BEARING AND SLIDING BEARING
Document Type and Number:
Japanese Patent JP2019027524
Kind Code:
A
Abstract:
To provide a half-split bearing constituting a sliding bearing of a crankshaft capable of reducing a friction loss caused by turbulence generation during operation of an internal combustion engine.SOLUTION: Multiple recesses are formed on a sliding surface of a half-split bearing. The recess has a smooth recessed surface retracted from the sliding surface to an outer diameter side of the half-split bearing. The recessed surface forms a curve which is projected to the outer diameter side of the half-split bearing, in a cross-sectional view in parallel with a circumferential direction of the half-split bearing. A groove formation region is formed adjacently to an edge of the recess. Multiple circumferential grooves retracted from the recessed surface to the outer diameter side of the half-split bearing are formed in the groove formation region. The multiple circumferential grooves extend from the edge of the recess in the circumferential direction of the half-split bearing. The present invention also defines a sliding bearing which comprises the half-split bearing, in a cylindrical shape supporting a crankshaft of an internal combustion engine, as an object.SELECTED DRAWING: Figure 4

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Inventors:
天野 征治
山本 暁文
櫻井 真一
Application Number:
JP2017148218A
Publication Date:
February 21, 2019
Filing Date:
July 31, 2017
Export Citation:
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Assignee:
大同メタル工業株式会社
International Classes:
F16C9/02; F01M1/06; F16C17/02; F16C33/10
Attorney, Agent or Firm:
特許業務法人浅村特許事務所