Engine component with wear-resistant coating
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United States of America Patent
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N/A
Issued Date -
Feb 26, 2004
app pub date -
Aug 22, 2003
filing date -
Aug 23, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A piston assembly for an internal combustion engine has at least a portion of a contact surface of the piston pin and/or connecting rod coated with a high hardness, lubricious coating. Some disclosed coatings include carbides, nitrides, oxynitrides, carbonitrides and sulfides of transition metals. Chromium nitride is one specifically disclosed coating material. Also disclosed are methods for preparing the coatings.
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