Title:
BALL VALVE SEAT FOR FUEL INJECTOR, AND METHOD FOR COATING SAME
Document Type and Number:
WIPO Patent Application WO/2020/054991
Kind Code:
A1
Abstract:
The present invention relates to a ball and valve seat for a fuel injector, which is configured such that a Ta-C:H-SiO functional layer having low friction characteristics is formed as the outermost layer in order to reduce a friction coefficient, and an Mo-based material is applied to a bonding layer and a support layer for bonding the Ta-C:H-SiO functional layer to a base material and supporting said layer to improve heat resistance, wherein only Mo particles in a pure ionic state are deposited to form the bonding layer and the support layer, thereby improving adhesion and bonding force and thus enhancing durability; and to a method for coating same.
Inventors:
PARK HEON JOON (KR)
JUNG HAE HYUK (KR)
CHA SUNG CHUL (KR)
CHUNG WON KI (KR)
JUNG HAE HYUK (KR)
CHA SUNG CHUL (KR)
CHUNG WON KI (KR)
Application Number:
PCT/KR2019/010500
Publication Date:
March 19, 2020
Filing Date:
August 19, 2019
Export Citation:
Assignee:
HYUNDAI KEFICO CORP (KR)
International Classes:
C23C28/00; C23C14/02; C23C14/06; C23C14/16; C23C14/28; C23C16/30; C23C16/50; F02M61/18
Foreign References:
| JPH0625826A | 1994-02-01 | |||
| KR20180055043A | 2018-05-25 | |||
| KR20140038084A | 2014-03-28 | |||
| US20100047464A1 | 2010-02-25 | |||
| JP2010190309A | 2010-09-02 | |||
| KR20190000789A | 2019-01-03 |
Other References:
MANGOLINI, F. ET AL.: "Investigating the tribochemistry of silicon oxide-doped diamond-like carbon: from ultra-high vacuum systems to the international space station", 40TH LEED-LYON SYMPOSIUM ON TRIBOLOGY & TRIBOCHEMISTRY FORUM, 4 September 2013 (2013-09-04) - 6 September 2013 (2013-09-06), pages 1, XP055692217
MESKINIS, SARUNAS ET AL.: "dielectric properties of the ion-beam deposited SiOx doped DLC film", MATERIAL SCIENCE (MEDZIAGOTYRA, vol. 15, no. 1, 2009, pages 3 - 6
MESKINIS, SARUNAS ET AL.: "dielectric properties of the ion-beam deposited SiOx doped DLC film", MATERIAL SCIENCE (MEDZIAGOTYRA, vol. 15, no. 1, 2009, pages 3 - 6
Attorney, Agent or Firm:
HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP (KR)
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