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Title:
PISTON-CYLINDER SLIDING STRUCTURE AND RECIPROCATING INTERNAL COMBUSTION ENGINE USING THE SAME
Document Type and Number:
Japanese Patent JP2012092928
Kind Code:
A
Abstract:

To reduce relative friction between a cylinder and a piston by causing surface roughness of the cylinder to be proper and by improving wear resistance of a piston ring in a cylinder-piston sliding structure and a piston-cylinder sliding structure.

In the cylinder-piston sliding structure including a piston 3 having a skirt 3a, a cylinder 2 slidably and reciprocally receiving the piston 3 via lubrication oil, and piston rings 5, 6, 7 stretched on an outer circumferential surface of the piston 3 along a circumferential direction, the cylinder 2 is formed in a cylindrical shape, the piston rings 5, 6, 7 are formed in a ring shape capable of sliding relative to an inner surface 2a of the cylinder 2 via the lubrication oil, the sliding surface of the cylinder 2 with the piston rings 5, 6, 7 is formed as a mirror surface, and amorphous hard carbon coating 11 is formed on sliding surfaces of the piston rings 5, 6, 7.


Inventors:
Miyauchi, Kenichi
Yamakawa, Shuji
Application Number:
JP2010000242016
Publication Date:
May 17, 2012
Filing Date:
October 28, 2010
Export Citation:
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Assignee:
MITSUBISHI FUSO TRUCK & BUS CORP
International Classes:
F16J10/04; F02F1/20; F02F5/00; F16J9/26
Attorney, Agent or Firm:
特許業務法人 高橋松本&パートナーズ



 
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