发明名称 |
Lubricating oil composition |
摘要 |
Use of a lubricating oil composition comprising, or made by admixing, a major amount of oil of lubricating viscosity, and minor amounts of (A) a dispersant additive composition and (B) a detergent additive composition, wherein the oil composition gives a sulfated ash content of at most 1.0 mass %; has a total base number (TBN) of 4 to 9.5; has at least 0.08 mass % of nitrogen derived from the dispersant additive composition, based on the mass of the oil composition; and has at least 25 mmol of soap per 1000 g of the oil composition derived from the detergent additive composition, to improve the cleanliness of pistons in an engine.
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申请公布号 |
EP1533362(A1) |
申请公布日期 |
2005.05.25 |
申请号 |
EP20040256947 |
申请日期 |
2004.11.10 |
申请人 |
INFINEUM INTERNATIONAL LIMITED |
发明人 |
BELL, IAN ALEXANDER WESTON;BROOM, NIGEL;LAMB, GORDON DAVID;HALL, DAVID |
分类号 |
C10M101/02;C10M105/32;C10M129/10;C10M129/26;C10M133/12;C10M133/16;C10M133/56;C10M135/10;C10M135/14;C10M135/18;C10M135/30;C10M137/10;C10M139/00;C10M159/16;C10M159/22;C10M163/00;C10M169/04;C10M171/00;C10N10/04;C10N10/12;C10N20/00;C10N20/02;C10N30/04;C10N40/25;(IPC1-7):C10M169/04 |
主分类号 |
C10M101/02 |
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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