柴油发电机组冒黑烟的原因?

2025-04-01 05:40:45
推荐回答(2个)
回答1:

柴油发电机组冒黑烟的原因
1、高压油泵供油量过大或各缸供油量不均匀
2、气门密封不严,造成漏气,气缸压缩压力低
3、空气滤清器进气道阻塞、进气阻力大,使进气量不足
4、缸套、活塞、活塞环严重磨损
5、喷油器工作不良
6、发动机超负荷运转
7、喷油泵供油提前角过小,燃烧过程后移到排气过程进行
8、柴油电喷系统控制失效故障等
对于冒黑烟的发动机可通过高压油泵调校,喷油器喷射试验检查,气缸压缩压力测量,进气道清洁,供油提前角的调整、汽油电喷系统故障诊断等工作予以检查和排除。

回答2:

柴油发电机组冒黑烟的原因及解决办法:
1、燃油质量差,杂质多。
杂质堵塞了喷油嘴使气缸内不能完全燃烧引起黑烟;另外发动机喷油嘴喷射时压力大,某些细硬杂质会划伤喷油嘴内壁。在喷嘴被划伤后就改变了喷油的精度,损坏了喷油嘴,对发动机伤害很大。如喷油嘴被损坏后,即使使用合格的燃油也会同样冒黑烟。所以对燃油的质量一定要把好关,选用合格的燃油有利于发动机的使用寿命。
2、发电机组的使用环境灰尘杂物多,致使空滤严重堵塞。
空气进气滤芯堵塞后造成气缸燃烧空气不足,燃烧不完全。要清洁或更换空气滤芯,并维持环境的清洁。
3、发动机的喷油正时不对。
发动机各个气缸的工作是要靠它喷油时间的标定,即活塞在做功过程需与喷油相对应,两者之间的时间差会引起燃烧不完全出现黑烟。因正时的标定需较强的专业技术,建议联系厂家调整发动机喷油正时与气门间隙

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