Coating to reduce coking deposits on steel pistons

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United States of America Patent

PATENT NO 11719185
SERIAL NO

17518018

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Importance

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Abstract

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A piston for an internal combustion engine is provided. The piston includes a coating applied to a ferrous body portion to reduce or prevent chemical bonding of carbon deposits or coking on the body portion at temperatures ranging from 200 to 400° C. The coating includes a fluoropolymer, such as polytetrafluoroethylene, fluorosilane, fluorocarbon, fluoroplastic resin, and/or perfluoroplastic, and may be hydrocarbon or silicone based. The coating also has a thickness of 25 microns to 1 millimeter. The coating can be disposed on an undercrown surface, ring grooves, ring lands, pin bosses, and/or skirt sections of the body portion.

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Patent Owner(s)

Patent OwnerAddress
TENNECO INCLAKE FOREST IL 60045

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lineton, Warran Boyd Chelsea, US 35 174
Vezina, Timothy Christopher Northville, US 3 7

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