发明名称 |
LOW SULPHUR, LOW SULPHATED ASH, LOW PHOSPHORUS AND HIGHLY PARAFFINIC LUBRICANT COMPOSITION |
摘要 |
<p>The present invention relates to a lubricant composition having a sulphur content of from 0.01 to 0.3 wt. %, a phosphorus content of from 0.01 to 0.1 wt. % and a sulphated ash content of from 0.1 to 1.2 wt. %, based on the total weight of the lubricant composition, which comprises a base oil or base oil blend, wherein the lubricant composition has a kinematic viscosity at 100 °C of more than 5.0 mm<SUP>2</SUP>/s (cSt), a cold cranking simulated dynamic viscosity at -15 °C according to ASTM D 5293 of less than 9500 mPas (cP) and a mini rotary viscosity test value of less than 60000 mPas at -20°C according to ASTM D 4684, and wherein the base oil or base oil blend comprises a continuous series of iso-paraffins having n, n+1, n+2, n+3 and n+4 carbon atoms. The invention relates further to the use of the lubricant composition, for the reduction of piston ring deposits in an internal combustion engine.</p> |
申请公布号 |
WO2008055975(A1) |
申请公布日期 |
2008.05.15 |
申请号 |
WO2007EP62138 |
申请日期 |
2007.11.09 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;COLBOURNE, DAVID;WEDLOCK, DAVID JOHN |
发明人 |
COLBOURNE, DAVID;WEDLOCK, DAVID JOHN |
分类号 |
C10M107/02;C10M169/04;C10N30/04;C10N40/25 |
主分类号 |
C10M107/02 |
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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