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公开(公告)号:US20160369201A1
公开(公告)日:2016-12-22
申请号:US15122220
申请日:2015-03-04
Applicant: IDEMITSU KOSAN CO., LTD.
Inventor: Moritsugu KASAI , Kazushi TAMURA
IPC: C10M161/00 , C10M129/66
CPC classification number: C10M161/00 , C10M129/66 , C10M2203/1025 , C10M2207/026 , C10M2207/262 , C10M2207/28 , C10M2207/34 , C10M2209/084 , C10M2215/02 , C10M2215/08 , C10M2215/28 , C10M2215/30 , C10M2223/045 , C10N2220/021 , C10N2230/02 , C10N2230/06 , C10N2230/54 , C10N2240/02 , C10N2240/10 , C10N2220/022
Abstract: Provided is a lubricating oil composition favorable for reducing friction in a sliding mechanism equipped with a piston ring and a liner, in a device having the sliding mechanism. The lubricating oil composition contains a lubricant base oil, (1) a polymethacrylate and/or an olefin copolymer having a mass-average molecular weight of 100,000 to 600,000, and (2) an ester-type ashless friction modifier and/or an amine-type ashless friction modifier, and has a shear viscosity at 150° C. of 2.3 mPa· or more and less than 3.7 mPa·s.
Abstract translation: 本发明提供一种润滑油组合物,该润滑油组合物在具有滑动机构的装置中有利于减少装配有活塞环和衬套的滑动机构中的摩擦力。 润滑油组合物含有润滑剂基油,(1)质量平均分子量为100,000〜600,000的聚甲基丙烯酸酯和/或烯烃共聚物,(2)酯型无灰摩擦改性剂和/或胺 - 型无灰摩擦调节剂,在150℃下的剪切粘度为2.3mPa·s以上且小于3.7mPa·s。