发明名称 |
SYSTEM LUBRICATING OIL COMPOSITION FOR CROSSHEAD-TYPE DIESEL ENGINE |
摘要 |
The present invention provides a system lubricating oil composition for a crosshead-type diesel engine, which can prevent fuel efficiency deterioration by suppressing the viscosity increase and comprises a mineral base oil and/or a synthetic base oil, (A) (a-1) a star polymer having a vinyl aromatic hydrocarbon structure in the molecule and/or (a-2) an ethylene-α-olefin copolymer or a hydrogenated compound thereof and having a base number of 4 to 20 mgKOH/g and a 100° C. kinematic viscosity of 7.5 to 15.0 mm2/s.
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申请公布号 |
US2012258898(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
US201013516517 |
申请日期 |
2010.10.08 |
申请人 |
TAKESHIMA SHIGEKI;JX NIPPON OIL & ENERGY CORPORATION |
发明人 |
TAKESHIMA SHIGEKI |
分类号 |
C10M143/10;C10M137/10;C10M143/04;C10M143/12 |
主分类号 |
C10M143/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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