Method for preventing burn-through of automatic diesel generator nozzle

September 15, 2019

Although the diesel generator nozzle is small, it plays a vital role. Once a problem arises, the entire unit has to be shut down. During use, due to improper operation, sometimes the injector will be burned through. Therefore, the user must avoid improper operation in the process of using an automatic diesel generator to prevent the occurrence of diesel generator set injector nozzle failure. 1. Start from the source. When assembling the injector, be sure to install the assembly standard. Prevent assembly in place. When installing the fuel injector insulation cover, care must be taken to ensure that it is neither too loose nor too tight. It is too loose, there is a gap between the nozzle and the insulation cover, and the heat insulation effect is greatly discounted, which easily leads to the injector nozzle. And heat insulation sleeve are burned. Too tight, the fuel injector feels oppressed. Under the combined effect of heat alternating load and fuel injection high pressure load, the injector head breaks, and the needle valve catches up with dripping oil. Therefore, we must take a good grasp of degree 2, do not start too long boot. When the generator is just starting up, it is best to run at idle speed for 10 minutes, especially when the weather is cold, warm up first, and then accelerate to 1500 rpm; when the idling speed is running, the body is still relatively cool and the pressure is low. Diesel combustion is not complete, so that it is easy to form carbon deposits, paste the nozzle, causing plugging.

3. Do not use inferior diesel. Customers who use generators don't want to buy cheaper diesels. They should go to a regular place to buy them. Because of the poor quality of diesel fuel, the inside is unclean, and there may be small particles. It is easy to clog and injure the fuel injectors. , causing the engine to run unstable, the symptoms of the performance are mainly: black smoke, the body shakes fiercely, when these problems arise, stop the inspection.

4. Before starting the generator, it is necessary to pay attention to see if the oil is not enough. If the engine is turned on with too little or no engine oil, the temperature in the cylinder will be too high, which is also a cause of the burning of the nozzle. Therefore, the inspection before starting the machine is still very important.

In addition, the injectors may also encounter problems such as blockage, poor fuel injection, or carbon deposits in the gap between injectors and rubber compounds. This requires the operator to develop good maintenance habits in order to make the equipment Work better and more efficiently.
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