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Engine oil supply (engine fuel supply system) With the rapid development of modern science and Casino Plus apptechnology, the types and functions of automobiles are also increasing, and the engine fuel supply system is an indispensable and important part of automobile engines. Next, let's learn about the basic principle of engine oil supply and common oil supply systems. The basic principle of engine oil supply. The operation of the engine requires a mixture of fuel and air. The function of the fuel supply system is to transport fuel from the fuel tank to the combustion chamber of the engine to meet the energy needs of the engine. The engine oil supply system includes fuel tank, oil pump, fuel filter, fuel injector and other components. The following is an introduction to the functions of these components. 1. The fuel tank is a storage container for fuel, which is usually placed at the rear of the vehicle and connected to the engine through the fume pipe.There is a buoy indicator inside the fuel tank, which will send a warning signal when the amount of fuel is low to remind the owner to refuel in time. The fuel tank also has a ventilation valve to regulate the pressure inside the fuel tank so that the oil can flow smoothly. Two. Oil pump Oil pump is a key device for transporting oil from the fuel tank to the combustion chamber. It is usually located at the bottom of the engine and is driven by the engine timing belt or transmission chain. Oil pumps are divided into mechanical and electronic. Mechanical oil pumps require manual pumping pressure when starting the engine, while electronic oil pumps can automatically establish pressure for the fuel system before the engine starts. 3. Fuel filter Fuel filter is an indispensable part of the fuel supply system. It can effectively filter impurities and particles in the fuel and prevent them from entering the combustion chamber of the engine. If the fuel filter is damaged or too much dirt accumulates, it will lead to a decline in engine performance and may cause more serious failures.Four. Fuel injector The fuel injector is one of the most important parts of the engine. It injects fuel into the combustion chamber of the engine at the appropriate speed and amount to ensure the normal operation of the engine. The fuel injector has multiple nozzles, which can automatically adjust the amount of fuel injection according to the speed and load of the engine. The fuel injectors of modern cars usually adopt electronic control technology, which can precisely control the amount and timing of fuel injection, which greatly improves the combustion efficiency and economy of the engine. Common engine fuel supply systems include four common engine fuel supply systems: carburetor fuel supply system, single-point fuel injection fuel supply system, multi-point fuel injection fuel supply system and direct injection fuel supply system. 1. Carburetor oil supply system The carburetor oil supply system is an older oil supply system, which mixes fuel and air through the carburetor and then transports it to the engine combustion chamber.The advantages of the carburetor oil supply system are simple structure and easy maintenance, but its fuel injection is inaccurate, prone to pollution and waste, and has been gradually replaced by other oil supply systems. Two. Single-point fuel injection oil supply system The single-point injection system uses a single fuel injection port to inject fuel to the air duct, which is a bit similar to the carburetor oil supply system, but it adopts an injector on the engine, which can control the concentration of the fuel mixture more accurately and reduce the pressure of environmental protection and economy. However, compared with multi-point injection and direct injection fuel supply systems, there is still a lag phenomenon when changing gears and starting. 3. Multi-point fuel injection oil supply system The multi-point injection system places the fuel injector on the intake pipe of each cylinder, which can provide efficient fuel transportation when the engine is running at high speed. The oil is also directly sprayed into each cylinder by the fuel injector, thus completely improving the combustion efficiency.It is widely used because of its advanced structure, high economy and good fuel efficiency. Four. Direct injection fuel supply system Direct injection fuel supply system is the most advanced oil supply system at present. It uses a high-pressure fuel injector to inject fuel into the engine combustion chamber, which greatly improves the fuel utilization rate and power performance. In addition, the direct injection fuel supply system can greatly reduce the generation of emissions and improve environmental protection. In summary, engine oil supply is an indispensable and important part of automobile operation. Its structure and performance are constantly optimized and improved to better adapt to changing market demand and national environmental protection policies. Consumers should also master the basic principles of engine oil supply and common fuel supply systems in order to better maintain and maintain their cars.

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