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<h1 class="h1">柴油发电机喷油器开启压力和雾化查看</span></h1>
<div class="text">发布来源：康柴（深圳）电力技术有限公司　　发布日期: 2024-12-24　　访问量:2220</div>
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<p>雾化的柴油能更好与空气充分混合，能更好的燃烧，发挥柴油发电机的功率，柴油发电机喷雾特性对可燃混合气的形成及整个燃烧过程起着决定性的功能。因此，喷油器的压力和喷雾质量对柴油发电机性能危害巨大，康明斯公司在本人中对喷油器的压力和质量要求以及查验方案做了专业技巧。</p><p>查看喷油器喷油压力和喷雾品质应在专用的试验台上进行，以每分钟30次的转速泵油时，喷油嘴喷雾要均匀，断油要彻底，并听到特殊的清脆响声。</p><p>（1）S型喷油嘴喷油调整压力为18.65～19.55MPa，当压力太高或偏低时可松开或拧紧喷油压力调节螺栓来达到规定值。</p><p>（2）P型喷油器喷油调节压力为24～25.4MPa，P型喷油嘴喷油压力的调节不一样于S型喷油嘴，而采取选取不同厚度的垫片来调节。该垫片厚度为1.0～2.0mm，厚度每隔0.01mm就有一种型号，喷油器生产公司装配出厂一般采用1.7～1.9mm厚的垫片。</p><p>安装时喷油器偶件和P型喷油器各零件必须仔细清洁干净，各密封面不得有划痕或杂物。&nbsp;针阀偶件在倾斜45°时，应能自由滑入针阀体。喷油器紧帽拧紧力矩为（35±5）N·m。过度会致使针阀体变形，使偶件针阀卡滞。为防范总成因赃物积聚而难以拆除，喷油器总成插入缸盖后应装上防尘护套。喷油器螺母的拧紧力矩为（60±10）N·m。</p><p>（1）喷出的燃油应呈雾状，分布细微且均匀，不应有明显的飞溅油滴和连续的油珠，不应有局部浓稀不均匀等现象。</p><p>（2）油开始和结束应明显，且应伴有清脆的声音；喷射前后不得有滴油现象；多次喷射后，喷油口附近应保持干燥或稍有湿润。</p><p>（7）对于对称的多孔式喷油嘴，各喷孔喷雾形状和角度要均匀相似，不应有油束形状偏倚和大小不均匀状况。</p><p>预先自制一个丁字形带接头的三通，其中一个接头装在喷油泵的任一分泵上，一个接头装上新的标准喷油器，另一个接头装配被测喷油嘴。检查喷油开启压力的步骤，用启动系统带柴油发电机转动，观察两个喷油器，是否同时喷油，若同时喷油，则说明被测喷油嘴的喷油压力符合要求。否则应根据喷油开始的迟早，通过喷油器调压螺钉进行调节。可在两个喷油嘴喷油的同时，观察其喷雾品质。若两个喷油嘴的喷雾状况相同，说明被测者良好。</p><p>在距喷油器的正下方100-200mm处，放置一张白纸，摇动操纵杆使喷油器进行一次喷射，测出白纸上油迹的直径D及距喷油嘴口的距离H，则喷雾锥角a=2arctan(D/2H)。用直尺测定后定位<a href="http://www.gdkmsfdj.com" target="_blank">康明斯发电机厂家</a>，，用起动系统带柴油发电机转动使两个喷油器同时喷一次油于纸上，查验喷出的两个油迹范围和均匀度是否相同。若两油迹不一样，应查看被测者的喷孔内有无积炭或异物，若有应予以解决<a href="http://www.gdkmsfdj.com" target="_blank">柴油发动机故障灯图解</a>。若被测者的油迹面积小于标准喷油嘴喷出的油迹面积，说明其喷雾锥角不够，应检验喷孔是否烧蚀，必要时更替一副喷嘴。</p><p>如果没有三通管，需查看喷雾质量时，可同时卸下两负载喷油嘴的高压油管接头，一个接标准喷油器，另一个接被测喷油嘴。然后启动柴油发电机，观察两个喷油嘴的喷雾有无异样，若新旧喷油嘴的喷雾相同<a href="http://www.gdkmsfdj.com" target="_blank">柴油发电机保养规范</a>，说明被测者符合要求，否则应检验处理。采用这种对策无法进行喷油开启压力的比较，仅适合于喷雾品质检验。</p></div><a href="http://www.gdkmsfdj.com/" target="_blank">http://www.gdkmsfdj.com</a>
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