周延瑞1，夏英子1，魏庆山1，纪立柱1，韦成星1，高瑞1，兰飙1，郭志杰1，肖翔1，王瑞平1,2
(1、宁波吉利罗佑发动机零部件有限公司，浙江 宁波315336；2、浙江吉利罗佑发动机有限公司，浙江 宁波 315800)
摘要：本文通过对一款增压汽油机进行早燃专项耐久测试,对早燃次数、早燃发生的气缸和早燃发生时的气缸最大爆发压力等进行记录,试验结束后对活塞进行了检测分析,结果表明:发动机在试验过程中出现了614次早燃现象,发动机状态保持良好,未损坏,说明发动机零部件对早燃具有较强的抵抗性,车辆没有损坏风险。
关键词：早燃; 最大爆发压力
Abstract: An engine durability test focused on low speed pre-ignition is presented in this paper. The test wasis performed based on a supercharged spark ignition engine. The Nnumber of pre-ignition times, the cylinder number where pre-ignition happened and the max pressure during the pre-ignition are were recorded in this test. After the test, a comprehensive measurement of the piston iwas carried out. The test result indicateds that during the whole test, 614 times pre-ignition happened but the state of the engine still stayremains well, none of thewithout components are being damaged. It means suggested that the engine components have can stand high anti- pre-ignition property. They are were not in risk when the vehicle wais operating under normal conditions.
Keywords: prePre-ignition；Maximun pressurePressure
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