LUBRICATING OIL COMPOSITION, AND SLIDING MECHANISM USING LUBRICATING OIL COMPOSITION

Title:

LUBRICATING OIL COMPOSITION, AND SLIDING MECHANISM USING LUBRICATING OIL COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2013/137478

Kind Code:

A1

Abstract:

　A lubricating oil composition for a low-friction sliding material, wherein the lubricating oil composition is used interposed between sliding surfaces of a sliding mechanism and at least one of the sliding surfaces has a DLC film containing hydrogen in the amount of 5 atom% to 50 atom% formed thereon. The lubricating oil composition is characterized by containing in a lubricant base oil, based on the total amount of the composition, (A) 0.005 mass% to 0.12 mass% of organic zinc dithiophosphate in phosphorus concentration equivalent, (B) 0.05 mass% to 5.0 mass% of an amide-based friction-reducing agent, and (C) 0.05 mass% to 0.5 mass% of an alkaline-earth metal salicylate-based cleaning agent and/or an alkaline-earth metal sulfonate-based cleaning agent in alkaline-earth metal concentration equivalent.

Inventors:

OGAHARA YOKO (JP)
KASAI MORITSUGU (JP)
KOSHIMA HIROAKI (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)

Application Number:

PCT/JP2013/057750

Publication Date:

September 19, 2013

Filing Date:

March 18, 2013

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)
OGAHARA YOKO (JP)
KASAI MORITSUGU (JP)
KOSHIMA HIROAKI (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)

International Classes:

C10M141/10; C10M163/00; C10M129/54; C10M133/16; C10M135/10; C10M137/10; C10M159/22; C10M159/24; C10N10/04; C10N30/06; C10N40/25

Foreign References:

JP2011252073A	2011-12-15
JP2005060416A	2005-03-10
JP2011063654A	2011-03-31
JP2004067812A	2004-03-04
JP2008231192A	2008-10-02
JP2008231191A	2008-10-02
JP2008231189A	2008-10-02
JP2006036850A	2006-02-09
JP2003238982A	2003-08-27
JP2004155891A	2004-06-03
JP2005098495A	2005-04-14
JP2010156026A	2010-07-15

Other References: