Combination of cylinder liner and piston ring of internal combustion engine
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United States of America Patent
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Apr 29, 2003
Grant Date -
N/A
app pub date -
Jun 20, 2001
filing date -
Oct 29, 1999
priority date (Note) -
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Abstract
A cylinder liner and a piston ring adapted to be combined therewith in an internal combustion engine are provided that have excellent abrasion resistance, where iron oxide film is formed at least on a part of the inner circumferential surface of the cylinder liner, and metallic nitride film is formed at least on a sliding surface of the piston ring sliding along the cylinder liner.
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