柴油发电机组排气管滴油的原因

 总结柴油发电机组滴油的原因如下，由于发动机内有多处采用压力密封的形式，如汽缸套—活塞—活塞环间，增压器—增压器转子轴间，这种密封一般在发动机有约1/3负荷时，才充分发挥作用，而负荷小时便有可能出现轻微的渗漏现象。因此国外发动机制造商在其使用手册中普遍给予了强调。 
若机组在小负荷下运行，随着运行时间的延续，会出现以下故障：1.活塞—汽缸套密封不好，机油上窜，进入燃烧室燃烧，排气冒蓝烟。2.对于增压式柴油机，由于低载、空载，增压压力低。容易导致增压器油封(非接触式)的密封效果下降，机油窜入增压室，随同进气进入汽缸。3.上窜至汽缸的一部分机油参与燃烧，一部分机油不能完全燃烧，在气门、进气道、活塞顶、活塞环等处形成积炭，还有一部分则随排气排出。这样，汽缸套排气道内就会逐步积聚机油，也会形成积炭。4.增压器的增压室内机油积聚到一定程度，就会从增压器的结合面处渗漏出。5.长期小负荷运行，将会更严重的导致运动部件磨损加剧，发动机燃烧环境恶化等导致大修期提前的后果。
因此，国外柴油机制造厂商无论对自然吸气型还是增压机型的使用都强调应尽量减少低载/空载运行时间，并规定最小负荷不能低于机组额定功率的25%—30%。

康明斯动力设备（深圳）有限公司是柴油发电机组系列产品的全球独立制造厂家，是集团旗下专属运营柴油发电机组的销售、出租、维修、消音降噪工程及其售后服务业务，主要生产康明斯静音箱式柴油发电机组、移动式柴油发电机组、固定开架式柴油发电机组三大系列产品，销售渠道网络支持中国区各大省会及直辖市区，Cummins品牌是广大经销商及用户在应急电源领域的首选，可提供高效的电力解决方案。

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