ASTM D4858测定润滑油对改进二冲程循环汽油发动机预燃倾向的标准试验方法
日期:2012-02-07 17:27
ASTM D4858Standard Test Method for Determination of the Tendency of Lubricants to Promote Preignition in Two-Stroke-Cycle Gasoline Engines
ASTM D4858测定润滑油对改进二冲程循环汽油发动机预燃倾向的标准试验方法
Two-stroke-cycle gasoline engines are generally more prone to preignition than are four-stroke-cycle engines due to the absence of the internal cooling that takes place during the induction stroke of the four-stroke-cycle engines. Preignition can lead to major piston damage, either directly
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