How Carter Injectors Work
Carter injector is an important component in the fuel supply system of diesel engine, its function is to atomize diesel into tiny particles, and evenly inject into the cylinder, and form a combustible mixture with the air in the cylinder. The working principle of the Carter injector involves many aspects of knowledge, and the following will be introduced in detail from the structure, working principle and adjustment method of the injector.
First, the structure of the injector.
The Carter injector consists of a fuel injector, a needle valve and a needle valve body. Fuel injectors are generally made of copper, aluminum alloy or stainless steel and other materials, which have the characteristics of corrosion resistance, wear resistance, and high pressure resistance. The needle valve and needle body are made of carbide or steel and can withstand high temperatures and pressures.
Second, the working principle of the injector.
In diesel engine operation, high-pressure fuel is delivered to the injector through the fuel supply line, and then atomized into tiny particles through the fuel injector. Inside the injector, the fuel is subjected to pressure, which rotates and accelerates as it passes through the nozzle, creating a mist flow. When the mist oil flow enters the cylinder, it mixes with the air inside the cylinder to form a combustible mixture.
3. The adjustment mode of the injector.
There are two main types of injector adjustments: mechanical and electronic. Mechanical adjustment is mainly to change the fuel injection volume of the injector by adjusting the fuel supply of the fuel injection pump. Electronic regulation controls the injector through the electronic control unit (ECU), and adjusts the amount of fuel injected by the injector through the opening and closing of the solenoid valve.
Fourth, the working environment and working conditions of the injector.
Caterpillar injectors work in harsh environments and need to withstand adverse factors such as high temperatures, high pressures and vibrations. At the same time, the working conditions of the injector also need to meet certain requirements. For example, in the case of a cold start in a diesel engine, it is necessary to ensure that the injectors can quickly spray enough fuel to ensure a smooth start of the engine. Under different engine speeds and load conditions, the injection volume and injection time of the injector also need to be adjusted accordingly to ensure the power and economy of the engine.
5. Maintenance and maintenance of fuel injectors.
In order to ensure the normal operation and prolonged service life of the Carter injector, regular maintenance and maintenance are required. For example, regularly check the sealing performance and lubrication of the injector, clean the injector regularly, etc. In addition, it is also necessary to make appropriate adjustments and maintenance according to the actual situation during use to ensure the normal operation and fuel economy of the engine.
In short, as an important component of the diesel engine fuel supply system, the working principle of the Carter injector involves many aspects of knowledge. Understanding the working principle, structure, adjustment mode, working environment and working conditions, and maintenance and maintenance of Carter injectors will help to better use and maintain diesel engines, and improve their power and economy.