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Title:
SYSTEM HAVING DLC CONTACTING FACES, METHOD FOR LUBRICATING THE SYSTEM AND LUBRICATING OIL FOR THE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2005/014763
Kind Code:
A1
Abstract:
A system for further reducing the friction of a pair of DLC contacting faces being opposed to each other and moving relatively and for retaining the resulting low friction characteristics with stability, wherein at least one of the faces is coated with a DLC film; a lubricating oil for the above system which comprises a base oil (A) for a lubricating oil containing, as a primary component, a base oil (X) comprising at least one of a hydrogenolysis mineral oil, a wax isomerization mineral oil and a poly-&agr -olefinic base oil, exhibiting a kinetic viscosity at 100°C of 2 to 20 mm2/s and having a total content for aromatics of 5 mass % or less and a sulfur content of 0.005 mass % or less, and a sulfur-containing molybdenum complex (B); and a method for lubricating the system.

Inventors:
Konishi, Shozaburo (A-219, 1716-1 Bukkoucho, Hodogaya-k, Yokohama-shi Kanagawa 44, 24000, JP)
Kano, Makoto (3-405, 4-2-1 Ryokuen, Izumi-k, Yokohama-shi Kanagawa 02, 24500, JP)
Ueno, Takafumi (3-206, 6 Honmokumiyabara, Naka-k, Yokohama-shi Kanagawa 04, 23108, JP)
Ishikawa, Takao (6-13, 25 Negishikasoudai, Naka-k, Yokohama-shi Kanagawa 35, 23108, JP)
Application Number:
PCT/JP2004/011375
Publication Date:
February 17, 2005
Filing Date:
August 06, 2004
Export Citation:
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Assignee:
NIPPON OIL CORPORATION (3-12, Nishi-Shinbashi 1-chome Minato-ku, Tokyo 12, 10584, JP)
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-shi, Kanagawa 23, 22086, JP)
Konishi, Shozaburo (A-219, 1716-1 Bukkoucho, Hodogaya-k, Yokohama-shi Kanagawa 44, 24000, JP)
Kano, Makoto (3-405, 4-2-1 Ryokuen, Izumi-k, Yokohama-shi Kanagawa 02, 24500, JP)
Ueno, Takafumi (3-206, 6 Honmokumiyabara, Naka-k, Yokohama-shi Kanagawa 04, 23108, JP)
Ishikawa, Takao (6-13, 25 Negishikasoudai, Naka-k, Yokohama-shi Kanagawa 35, 23108, JP)
International Classes:
C10M101/02; C10M107/02; C10M129/00; C10M133/00; C10M135/00; C10M137/00; C10M159/20; C10M169/04; F16H57/04; (IPC1-7): C10M169/04; F01M11/00; F16H57/04; C10M169/04; C10M101/02; C10M107/02; C10M129/00; C10M133/00; C10M135/00; C10M137/00; C10M159/20; C10N10/04; C10N10/12; C10N20/02; C10N30/04; C10N30/06; C10N30/08; C10N40/04; C10N40/25
Foreign References:
JP2001316686A2001-11-16
JP2001192864A2001-07-17
JP2000297373A2000-10-24
JPH05509125A1993-12-16
JPH07508049A1995-09-07
JP2003505533A2003-02-12
JP2003238982A2003-08-27
JP2004155891A2004-06-03
Other References:
None
See also references of EP 1661971A1
Attorney, Agent or Firm:
Sakai, Hajime (Shuwa Kioicho TBR Building, 7 Kojimachi 5-chom, Chiyoda-ku Tokyo 83, 10200, JP)
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