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METHOD FOR IMPROVING HIGH TEMPERATURE ANTIFOAMING PERFORMANCE OF A LUBRICATING OIL

机译:改善润滑油高温抗泡性能的方法

摘要

This disclosure provides a method for improving high temperature antifoaming performance of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition with a lubricating oil base stock as a major component, and at least one silicone antifoaming agent, as a minor component. The silicone antifoaming agent is delivered to the lubricating oil by contacting the lubricating oil with a cured silicone (e.g., room temperature vulcanized (RTV) silicone) at a temperature, and for a period of time, sufficient to deliver silicone to the lubricating oil. The delivered silicone is soluble in the lubricating oil. The lubricating oils are useful as passenger vehicle engine oils (PVEO) and commercial vehicle engine oils (CVEO).
机译:本公开提供了一种通过使用配制油作为润滑油来改善发动机或用润滑油润滑的其他机械部件中的润滑油的高温消泡性能的方法。所述配制油具有以润滑油基础油为主要成分和至少一种有机硅消泡剂为次要成分的组合物。通过使润滑油与固化的硅氧烷(例如室温硫化(RTV)硅氧烷)在一定温度下接触足以将硅氧烷递送至润滑油的时间段,将硅氧烷消泡剂递送至润滑油。所输送的硅氧烷可溶于润滑油。该润滑油可用作乘用车发动机油(PVEO)和商用车发动机油(CVEO)。

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