Title: System having dlc contacting faces, method for lubricating the system and lubricating oil for the system
Application Number: 200480029039 Application Date: 2004.08.06
Publication Number: 1863893 Publication Date: 2006.11.15
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10M101/02,C10M107/02,C10M169/04,F01M11/00,F16H57/04,C10M169/04,C10M101/02,C10M107/02,C10M129/00,C10
Applicant(s) Name: Nippon Oil Corp. Address:
Inventor(s) Name: Konishi Shozaburo, Kano Makoto, Ueno Takafumi
Attorney & Agent: liu yanchi
Abstract:
     The present invention relates to a lubricant for lubricating relatively movable, facing contact surfaces at least one of which is coated with DLC, a method of lubricating DLC contact surfaces with this lubricant, and a system having DLC contact surfaces. The lubricant fulfills the following conditions (a) and (b): (a) the lubricant contains a lubricant base oil containing, as a main component, a base oil composed at least one of a hydrocracked mineral oil, a wax-isomerized mineral oil, and a poly- --olefin base oil. The base oil has a kinematic viscosity of 2 to 20 mm 2 /s at 100 DEG C, a total aromatic content of not higher than 5 wt%, and a sulfur content of 0.005 wt%; and (b) the lubricant has a sulfur content of not higher than 0.2 wt%.
Time: 7
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