Trade data for import tariff planning

The Trade data for import tariff planningworking principle of engine accessories The engine is the heart of the vehicle. After years of precipitation, there are many kinds of engines now. Whether it is a car, a ship or an airplane, their engines need some auxiliary equipment to perform at their best. These accessories are often called "engine accessories" and are necessary parts for engine work. This article will introduce the types and working principles of engine accessories. 1. Air filter Air filter is the most basic category of engine accessories, and its function is to filter the air entering the engine. Because the air contains impurities and particles, if these impurities enter the interior of the engine, it will cause very serious damage to the engine parts.Therefore, the function of the air filter is to intercept impurities and particles in the air entering the engine to ensure the cleanliness of the inside of the engine. The material of the air filter is usually paper or cellulose, and different materials have different filtration effects. When driving a car or other vehicle, especially in harsh road conditions or in a dirty environment, the frequency of air filter replacement will also be accelerated. Two. Gas intake system The gas intake system is mainly composed of air intake pipe and fuel injector. The main function of such accessories is to control the injection and intake of engine fuel to achieve more economical, environmentally friendly and efficient effects. The fuel injector will be adjusted according to the parameters set in the engine control unit (ECU), and then inject fuel into it, so that the engine can achieve efficient engine power output while burning fuel.In all-electric vehicles, the gas intake system is replaced by batteries and electric motors. Its main function is to convert the electrical energy stored in the battery into the power needed to drive the motor. 3. Generator generator is an important part of engine accessories. Its main function is to supply power to the automobile electrical system. When the vehicle is running, the motor energy is converted into a generator to generate electrical energy through the transmission belt on the crankshaft, and the battery is also charged to ensure sufficient electricity supply. If the driver notices that the battery voltage of the vehicle is low while driving, it is likely to be caused by a generator failure or a problem with the battery itself. Four. Start motor Start motor is another important component of the engine accessories. Without the help of starting the motor, the engine will not be able to start and work properly. When the driver opens the electric door of the car, the starting circuit will start the motor to drive it to make the crankshaft rotate and start the engine.When the driver releases the electric door, the starting motor will automatically stop running. 5. Cooling system Cooling system is one of the key accessories of the engine, which is mainly used to keep the engine within the appropriate temperature range. If the engine is overheated, it will cause serious damage to the engine. The cooling system consists of the following components: water pump, radiator, water tank and coolant circuit. The working principle of the cooling system is to use the heat generated by the engine to circulate the coolant to stabilize the temperature of the engine. When the temperature of the engine is too high, the radiator condenses the overheated gas emitted by the liquid cooler inside the car, thus discharging the exhaust gas to other places through the fan. In a word, engine accessories play a crucial role in modern vehicles. They can not only increase the efficiency and efficiency of the engine, but also ensure the safe operation of the vehicle.With the development of science and technology, the design and application of engine accessories are also constantly iterating and updating.

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