Valve for engine and method for treating surface thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8826880
APP PUB NO 20130220262A1
SERIAL NO

13482150

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Abstract

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The present invention provides a valve for an engine and a method for treating the surface thereof. The valve for the engine includes a buffer layer, an intermediate layer, a TiAlN/CrN first nanostructured multilayer, and a TiAlCN/CrCN second nanostructured multilayer. The buffer layer is coated over a surface of a stem part as a lowermost layer and is formed of Ti or Cr. The intermediate layer is coated over the buffer layer and is formed of CrN, TiN, or TiCN. The TiAlN/CrN first nanostructured multilayer is coated over the intermediate layer. The TiAlCN/CrCN second nanostructured multilayer is coated over the TiAlN/CrN first nanostructured multilayer as an uppermost layer.

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Patent Owner(s)

  • HYUNDAI MOTOR COMPANY;KIA MOTORS CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cha, Sung Chul Seoul, KR 28 48
Kang, Young Joon Seoul, KR 2 0
Lee, Jun Seok Incheon, KR 100 707
Shin, Chang Hyun Incheon, KR 13 21

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