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加长臂挖掘机,短臂挖掘机,小型挖掘机,压路机

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长臂挖掘机冒黑烟请注意这5点!
发布时间:2020-12-08 15:01:39 浏览:[34]次

在长臂挖掘机的高温维护过程中,您是否遇到过柴油发动机产生的黑烟?我没看到的意味着你离那个老司机还有很长的路要走!

  During the high temperature maintenance of the long arm excavator, have you ever encountered the black smoke produced by the diesel engine? What I didn't see means you still have a long way to go from that old driver!

  分析了长臂挖掘机维修过程中产生黑烟的因素。

  This paper analyzes the factors of black smoke in the maintenance process of long arm excavator.

  (1)压缩力不足:气门、活塞环和气缸套磨损,造成压缩压力不足,压缩压力和温度低于标准,燃料燃烧条件恶化,容易产生烟尘;

  (1) Insufficient compression force: valve, piston ring and cylinder liner wear, resulting in insufficient compression pressure, compression pressure and temperature below the standard, fuel combustion conditions deteriorated, easy to produce smoke and dust;

  (2)燃烧室形状和体积的变化:由于制造质量和长期使用,燃烧室的技术条件降低,压缩间隙的变化也会改变燃烧室的形状和体积,从而影响燃料和空气的混合质量,并使燃烧条件恶化。如果活塞反向安装,会影响喷油器、燃烧室和进气道的匹配工作,不会形成良好的混合气,会发生不完全燃烧。

  (2) Change of combustion chamber shape and volume: due to manufacturing quality and long-term use, the technical conditions of combustion chamber are reduced, and the change of compression gap will also change the shape and volume of combustion chamber, thus affecting the mixing quality of fuel and air, and worsening the combustion conditions. If the piston is installed in the opposite direction, the matching work of injector, combustion chamber and intake port will be affected, and good mixture will not be formed, and incomplete combustion will occur.


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