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首页> 外文会议>World Tribology Congress III 2005 vol.2 >COATED VALVE TRAIN COMPONENTS AND LOW EMISSION ENGINE OILS IN A FIRED ENGINE ENVIRONMENT
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COATED VALVE TRAIN COMPONENTS AND LOW EMISSION ENGINE OILS IN A FIRED ENGINE ENVIRONMENT

机译：发动机环境中的涂层气门传动组件和低排放发动机机油

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摘要

A series of heavy-duty diesel, fired engine tests were run using coated valve train components in combination with low emission diesel engine crankcase oils. Examination of coated rocker arm and corresponding, uncoaled crosshead surfaces, showed that greater crosshead wear was encountered using a physical vapor deposition (PVD) chromium nitride coating, as compared with that observed using a tungsten carbide PVD composition, or an uncoated rocker arm surface. Good coating adhesion was observed with both coalings, with no adverse effects on neighboring, uncoated surfaces. Tungsten carbide in combination with the first of two low-emission engine oils out performed either of the oils used in combination with chromium nitride. Test parameters are summarized along with key engine data obtained. Observations from surface characterization of representative rocker arm and mating crosshead components, using optical and scanning electron microscopy coupled with energy dispersive spectrometry also are highlighted and discussed.
机译：使用涂层气门机构组件和低排放柴油发动机曲轴箱油进行了一系列重型柴油发动机试验。对涂覆的摇臂和相应的未涂覆的横梁表面的检查表明，与使用碳化钨PVD组合物或未涂覆的摇臂表面相比，使用物理气相沉积（PVD）氮化铬涂层遇到的横梁磨损更大。两种结合都观察到良好的涂层附着力，对相邻的未涂层表面没有不利影响。碳化钨与两种低排放发动机油中的第一种混合使用，可以与氮化铬一起使用。测试参数与获得的关键发动机数据一起汇总。还着重讨论了具有代表性的摇臂和相配的十字头组件的表面表征，以及使用光学和扫描电子显微镜以及能量色散光谱的观察结果。

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