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Title:
COMBINATION OF PISTON RING AND CYLINDER OR CYLINDER LINER, AND PISTON RING USED IN THE SAME
Document Type and Number:
Japanese Patent JP2010236649
Kind Code:
A
Abstract:

To provide a piston ring suitably used in a combination with a cylinder or a cylinder liner having a sliding surface structure reducing reciprocating friction.

The piston ring is formed in an outer peripheral sliding surface of the piston ring with a plurality of grooves which each extend from one end cutting out an outer peripheral line of either end in a ring axis direction of the sliding surface to the other end lying in a plane of the sliding surface and are spaced from each other in a circumferential direction of the outer peripheral sliding surface of the piston ring. The piston ring is combined with the cylinder or the cylinder liner formed with a number of recesses in the inner wall surface of the cylinder or cylinder liner.


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Inventors:
URABE MITSURU
Application Number:
JP2009000086287
Publication Date:
October 21, 2010
Filing Date:
March 31, 2009
Export Citation:
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Assignee:
NIPPON PISTON RING CO LTD
International Classes:
F16J9/00; F02F5/00; F16J10/04
Attorney, Agent or Firm:
石川 泰男
石橋 良規