How Does A Diesel Engine Work

Construction machinery is an important booster in the field of modern construction and transportation. The diesel engine is the core power system of construction machinery. In this article, MyMROmarts will take a deep dive into how a diesel engine works, how long it lasts, and what causes a diesel engine to catch fire. Take you through a comprehensive understanding of this key device.

How Does A Diesel Engine Work

A diesel engine is an internal combustion engine that uses the combustion of diesel fuel to generate energy. Its working principle is mainly divided into four processes: intake, compression, combustion, and exhaust.

1. In the first process of the diesel engine, the piston goes down and the valve opens. Introduces outside air into the cylinder.

2. Next, the piston rises and the valve closes, compressing the air to high pressure. raise its temperature.

3. Diesel is injected into the diesel engine block under high temperature and high pressure, due to the increase of pressure and temperature. The diesel fuel spontaneously ignites rapidly, forming an explosion that pushes the piston down.

4. Finally, the exhaust gas is discharged from the cylinder through the exhaust valve, and at the same time, the piston rises again to complete a working cycle.

The diesel engine uses this cycle to repeat work continuously. Thereby transforming the chemical energy of the fuel into mechanical energy to drive the movement of construction machinery.

How Long Do Diesel Engines Last

Diesel engines usually have a long service life, generally reaching tens of thousands of hours or even longer. Diesel engines can provide reliable power output under normal use and proper maintenance. Thereby driving other diesel engine components and mechanical equipment to work normally.

1. Excessive load, ultra-high temperature, or extremely low-temperature environment will accelerate the wear and aging of the diesel engine.

2. Low-quality fuel can cause carbon deposits and mechanical wear, so it is important to use high-quality fuel.

3. Regular replacement of engine oil, air filter, and fuel filter is very important to the life of the diesel engine.

4. Reasonable driving and handling methods help to reduce the wear and tear of the diesel engine. Avoid frequent sudden acceleration and sudden braking.

What Causes Diesel Engine To Catch Fire

1. If the diesel fuel system components of the diesel engine leak or are damaged. May cause fuel to escape, causing fire if exposed to hot surfaces or open flames.

2. A short circuit in the electrical circuit, aging electrical components, poor wire contact, etc., may cause electric sparks and cause a fire.

3. High-temperature surfaces are generated during the internal working process of the diesel engine. Contact with flammable materials or paint may cause a fire.

4. The diesel engine works under high load for a long time or the cooling system fails. Some parts can overheat, which can cause a fire.

5. Long-term use of diesel engines will increase the wear and tear of mechanical parts and aging of oil seals, which may lead to poor lubrication, which may lead to fire.

In order to prevent the diesel engine from igniting, the following work should be done:

1. Regularly check the fuel system for leaks and damage.

2. Do a good job of maintaining the electrical system to prevent aging and short circuits.

3. Keep combustibles away from the high-temperature surface of the diesel engine.

4. Regularly check the cooling system to ensure the normal working temperature of the diesel engine.

As the core power system of construction machinery, the diesel engine works on the principle of generating power through internal combustion. Under normal maintenance, a high-quality diesel engine can have a service life of tens of thousands of hours. Provide stable and reliable power for construction machinery. However, the lifespan of a diesel engine can be drastically shortened if maintenance is not taken care of, used in harsh environments, or has design flaws. At the same time, a diesel engine fire is a serious failure that can bring huge losses. Therefore, we need to strengthen the maintenance of diesel engines. Make sure it is running in good condition to avoid fire.