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Listen to the sound of the diesel engine The OKX appsound of the diesel engine is one of its most prominent features. In the field of machinery industry, diesel engines have been widely used in a variety of machinery and equipment, such as tractors, heavy trucks, construction machinery, etc. For mechanics of these equipments, distinguishing the sound of diesel engines is a very important skill. In this article, we will discuss how to identify diesel engines by sound.First of all, understanding the basic structure of diesel engines is very helpful for hearing recognition. Diesel engines use compressed air to ignite fuel, thus generating energy. Unlike gasoline engines, diesel engines do not have spark plugs, but inject fuel directly into compressed air through high-pressure injectors. This is also one of the main sources of diesel engine sound. In a properly operating diesel engine, a mixture of compressed air and fuel is injected into the cylinder in the injector. When the fuel injector ejects fuel, the fuel will explode due to the high temperature and high pressure of the cylinder. The sound produced by this explosion is very obvious, so the sound produced by the diesel engine is also very impactful and majestic. By observing the color and concentration of engine smoke, it can also help us identify the type and working status of the diesel engine.Diesel engines produce black, white or blue smoke, and different colors usually mean different problems. Black smoke is usually a manifestation of insufficient combustion of a diesel engine, while white smoke represents water vapor during cold start, or a problem with the fuel injector. Blue smoke usually means that the engine consumes too much fuel. In addition to observing the smoke, we can also listen to the sound of the diesel engine to identify its working condition. The sound of diesel engines can be divided into several different links. The first is the start-up process. At this time, the sound made by the engine is relatively high-pitched and sharp, which usually lasts for a period of time. Then there is the idling link. At this time, the sound made by the engine will be significantly lower than that of the start-up link, and the tone will become low and the rhythm will be stable. When the engine starts to work and accelerate, the sound becomes more obvious, the volume increases and the pace becomes faster.In addition, diesel engines also produce some different sounds during operation, such as noise and vibration. The production of these sounds is usually related to the operating condition, design and age of the car. Therefore, when identifying the sound of a diesel engine, we also need to consider some other details. In a word, correctly identifying the sound of the diesel engine can help us understand the working status of the equipment more accurately and improve the fault maintenance efficiency of mechanics. At the same time, in terms of maintaining diesel engines, we also need to have an in-depth understanding of its sound in order to better judge whether it needs to be maintained or replaced with certain parts.

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