发电机废气大的主要原因是活塞环或缸套磨损，导致活塞与缸套之间的密封不严，从而使得大量压缩气体在压缩和膨胀过程中通过这些间隙进入曲轴箱，造成曲轴箱废气压力升高，进而使得尾气排放量增多。此外，其他可能的原因包括：

　　The main reason for the high exhaust gas of the generator is the wear of the piston ring or cylinder liner, which leads to poor sealing between the piston and cylinder liner, causing a large amount of compressed gas to enter the crankcase through these gaps during compression and expansion, resulting in an increase in exhaust gas pressure in the crankcase and an increase in exhaust emissions. In addition, other possible reasons include:

　　进气系统不畅，如节气门堵塞；

　　The intake system is not smooth, such as a clogged throttle valve;

　　发动机散热不良；

　　Poor engine heat dissipation;

　　机油粘度低，导致润滑不良；

　　Low oil viscosity leads to poor lubrication;

　　发动机积碳过多；

　　Excessive carbon buildup in the engine;

　　三元催化失效或氧传感器失效，影响尾气排放。

　　Failure of three-way catalytic converter or oxygen sensor affects exhaust emissions.

　　解决这些问题通常需要专业的检查和维修服务。如果您遇到发电机废气大的情况，建议您联系专业的维修人员进行检查和修理

　　Resolving these issues typically requires professional inspection and repair services. If you encounter a situation where the generator emits a large amount of exhaust gas, it is recommended that you contact professional maintenance personnel for inspection and repair

　　本文由工业尾气发电机组提供帮助，更多的相关内容请点击：https://www.huannengpower.cn希望本文能够为您带来帮助，感谢您的阅读！

　　This article is assisted by an industrial exhaust gas generator set. For more related content, please click: https://www.huannengpower.cn I hope this article can be helpful to you. Thank you for reading!