With the development of industry, Caterpillar C13 diesel engines are widely used in various heavy equipment. However, in actual use, sometimes there is a problem of exhaust treatment fluid injection unit air side flushing, which not only affects the normal operation of the engine, but also may cause pollution to the environment. This article will analyze the causes and solutions of the air-side flushing of the exhaust fluid injection unit of the Carter C13 diesel engine, in order to provide reference for relevant technicians.
1. The reason for the air-side flushing of the exhaust treatment fluid injection unit of the Carter C13 diesel engine.
The main reasons for the air side flushing of the exhaust fluid injection unit of the CAT C13 diesel engine are as follows:
1.Nozzle clogging: Due to impurities in the exhaust treatment fluid or corrosion inside the nozzle, it may cause the nozzle to clog, which will affect the injection effect of the exhaust treatment fluid.
2.Pipeline leakage: If there is a leak in the pipe of the exhaust treatment fluid injection unit, it will cause the exhaust treatment fluid to fail to be injected normally, which will affect the normal operation of the engine.
3.Pump damage: The pump is an important part of the exhaust treatment fluid injection unit, if the pump is damaged, the exhaust treatment fluid will not be delivered to the nozzle normally, which will affect the injection effect.
4.Control valve failure: The control valve is a key component that controls the exhaust treatment fluid injection unit, if the control valve fails, it will cause the exhaust treatment fluid to fail to enter the injection unit normally or cannot be sprayed normally.
5.Air-side flushing issues: Due to problems with components such as air-side flushing control valves or air-side flushing nozzles, it can lead to improper air-side flushing, which can affect the normal operation of the engine.
Second, the solution of the air side flushing of the exhaust treatment fluid injection unit of Carter C13 diesel engine.
To solve the above problems, you can take the following solutions:
1.Regularly inspect the nozzle: Regularly inspect the nozzle, and clean or replace the nozzle in time if it is blocked. At the same time, it is necessary to ensure that the cleanliness of the exhaust gas treatment fluid meets the requirements.
2.Check the tightness of the pipeline: Regularly inspect the pipeline of the exhaust treatment fluid injection unit, and repair or replace the relevant parts in time if leaks are found.
3.Check the status of the pump: Regularly inspect the pump and repair or replace the pump in time if any damage is found. At the same time, make sure that the pump is well lubricated and cooled.
4.Check the control valve: Regularly inspect the control valve, and repair or replace the control valve in time if the fault is found. At the same time, it is necessary to ensure that the power and signal lines of the control valve are well connected.
5.Check the air side flushing parts: Regularly inspect the air side flushing control valve and air side flushing nozzles, and repair or replace the relevant parts in time if the fault is found. At the same time, it is important to ensure that the airtight and reliable connection of the airside flushing system is secure.
III. Conclusion. 
The problem of air side flushing of the exhaust fluid injection unit of the Carter C13 diesel engine is a relatively common problem, but it can be effectively solved as long as the correct solution is taken. In actual use, the exhaust treatment fluid injection unit should be inspected and maintained regularly to ensure its normal operation. At the same time, it is necessary to strengthen the training and learning of relevant technical personnel, improve their maintenance and overhaul level, so as to better ensure the normal operation of the engine. Only in this way can we give better play to the performance of the CAT C13 diesel engine and improve the reliability and safety of the equipment.