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<h1 class="h1">柴油发电机喷油嘴卡死的危害和解决步骤</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: 2024-08-23　　访问量:2883</div>
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<p>喷油器其实就是个简易的电磁阀，当电磁线圈通电时，产生吸力，针阀被吸起，打开喷孔，燃油经针阀头部的轴针与喷孔之间的环形间隙高速喷出，形成雾状，利于燃烧充分。康明斯柴油发电机喷油咀正常使用寿命通常在一千小时以上。但因为操作“非法”，可能操作几百小时，甚至几十小时就会磨损卡死。</p><p>喷油泵本身是一个常闭阀 (常闭阀的意思是当没有输入控制讯号时，阀门一直处于关闭状态;而常开阀则是当没有输入控制讯号时，阀门一直处于开启状态，由一个阀针上下运动来控制阀的开闭。当ECM下达喷油指令时，其电压讯号会使电流流经喷油泵内的线圈，产生磁场来把阀针吸起，让阀门开启好使油料能自喷油孔喷出。 喷射供油的较大特点就是燃油供给之控制十分精确，让引擎在任何状态下都能有正确的空燃比，不仅让引擎保持运转顺畅，其废气也能合乎环保法规的规范。</p><p>作为柴油发电机的关键部件之一的喷油器，它的工作好坏将严重的危害柴油发电机的性能。喷油咀卡死会严重影响发电机组性能。卡死的缘由是因为柴油发电机内积炭沉积在喷油嘴上或者因为燃油中的杂质等卡死了喷油嘴通路。发电机组运转一段时间后，燃油装置就会形成一定的沉积物。沉积物的形成和发电机组的燃油直接有关：首先是因为柴油本身含有胶质、杂质，或储运流程中带入的灰尘、杂质等，日积月累地在发电机组油箱、进油管等部位形成类似油泥的沉积物;其次是因为柴油中的不稳定成分在一定温度下发生反应，形成胶质和树脂状的粘稠物。这些粘稠物在喷油泵、进气阀等部位，燃烧时，沉积物就会变成坚硬的积炭。</p><p>2、柴油不清洁，高压油管内有杂质，使针阀偶件关闭不严，燃烧室内高压燃气反窜，烧坏针阀偶件。此外，喷油嘴调压弹簧、挺杆等零件上的脏物通过喷油咀挺杆移到了喷油咀针阀上部，或油路上用于防止渗油的棉绳、铅丝经高压油管进入喷油器，都会使针阀偶件卡死。3、出抽阀损伤，喷油器停止喷油时发生滴油情形，以致喷曲嘴燃焦积炭，产生卡死的故障。4、机温过高喷曲器冷却不够，造成阀偶件卡死。而供油时间过迟、防锈水道水垢过多或卡死、水泵叶轮端面损伤、柴油发电机长久超负荷等又会使柴油发电机发烫。5、喷曲压力过低，造成燃烧室内高压燃气反窜；6、喷油器安装时，漏装垫片或垫片破坏，造成漏气，致使喷油器局部温度较高而卡死。</p><p>&nbsp;&nbsp;四、康明斯柴油发电机喷油嘴卡死的应对举措：先将卡死的喷油咀放入柴油或机油内加温，然后取出用布包住，再用手钳夹紧针阀并慢慢活动，将针阀从针阀体内取出。将少量清洁机油滴在针阀体内，使针阀在针阀体内反复活动，直至针阀能在针阀体内活动自如。如针阀的密封面有烧伤的痕迹，该当用研磨膏进行研磨。研磨时要注意掌握研磨膏用量和研磨时间。将清洗干净的钟阀偶件装上喷油嘴，并调节好喷油压力后即可重新使用。&nbsp;</p></div><a href="http://www.gdkmsfdj.com/" target="_blank">http://www.gdkmsfdj.com</a>
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