发明名称 |
USE AND METHOD OF REDUCING VALVE DEPOSITS IN AN ENGINE |
摘要 |
The present invention generally relates to a method for reducing intake valve deposits in a Direct Injection Spark Ignition engine, the method comprising operating the engine with a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) at least one foam inhibitor selected from the group consisting of silicon oils, polysiloxanes, polyacrylates, and polymethacrylates; wherein the foam inhibitor is not poly (phenyl-methyl) siloxane; and further wherein the amount of said foam inhibitor in said lubricating oil composition is at an effective concentration to achieve at least 10% reduction in intake valve deposits in said Direct Injection Spark Ignition engine compared to operating the engine with said lubricating oil composition without any foam inhibitor. |
申请公布号 |
EP2633012(A2) |
申请公布日期 |
2013.09.04 |
申请号 |
EP20110836848 |
申请日期 |
2011.10.13 |
申请人 |
CHEVRON ORONITE COMPANY LLC |
发明人 |
MORCOS, MICHELLE;TOMAN, JEFFREY, J.;PARSINEJAD, FARZAN |
分类号 |
C10M169/06;C10M145/14;C10M155/02;C10M157/10;C10N40/25 |
主分类号 |
C10M169/06 |
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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