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Understanding Camshaft Engine Camshaft Engine is European Cup livean engine widely used in automobiles and other means of transportation. It uses camshaft to control the opening and closing of the valve, from And realize the control of the throttle valve and the inlet and out of the mixed gas in the cylinder, and then promote the piston movement and realize the rotation of the engine. In this article, we will introduce the working principle, structure and advantages and disadvantages of camshaft engines in order to better understand this common engine type. And. Working principle The working process of the camshaft engine can be divided into four steps: 1. In the intake phase, when the piston moves down, the valve opens through the control of the camshaft, so that the intake valve opens, and the mixture of gasoline and air is sucked into the intake channel, and then enters the engine through the intake channel.Two. In the compression stage, once the piston is in the upward position, the valve of the engine is closed, and the mixed gas is compressed to improve the combustion efficiency. 3. During the combustion stage, when the mixed gas is compressed to a certain extent, the igniter ignites the mixed gas, causing combustion, forming high-temperature and high-pressure gases. These gases push the piston down, turn the crankshaft, and the engine starts to run. Four. In the exhaust phase, when the piston moves up, the exhaust valve is opened through the control of the camshaft, and the exhaust gas is discharged from the engine, so that the subsequent intake cycle can be carried out. II. The main components of the camshaft engine include camshaft, valve, piston, crankshaft, fuel nozzle, igniter, etc. Among them, the camshaft is a very important part of the engine. It is responsible for receiving the rotational force from the crankshaft, controlling the opening and closing of the valve according to the opening and closing state of the valve and the injection time, and determining the inlet and out of the mixed gas.Camshafts are usually made of high-strength alloy steel or cast iron with different shapes to meet the working needs of different engines. The function of the valve is to control the valve of gas in and out of the engine, which is another key part of the engine. The valves are usually made of cast iron or titanium alloys, because they need to withstand high temperatures and high pressures, and also need to withstand the loss of long-term operation of the engine. The piston is also one of the important components. It is made of aluminum alloy and is responsible for the compression and combustion of gas, as well as the discharge of exhaust gas from the exhaust channel. The crankshaft is one of the important parts of the engine, which converts the piston motion into the rotational kinetic energy that can be used to drive the wheels. The crankshaft needs to have the characteristics of high strength and as lightweight as possible, and is usually made of alloy steel or aluminum alloy. The fuel nozzle mainly atomizes the fuel into a fuel mixture that can be burned and sprays it into the engine combustion chamber to produce high-temperature and high-pressure gases.The igniter is responsible for generating high-voltage arcs to ignite the mixed gas and start the engine. Modern cars usually use electronically controlled igniters, whose accuracy and stability are much higher than those of traditional mechanical igniters. III. Advantages and disadvantages Camshaft engines have the following advantages: 1. Light weight: Camshaft engines are lighter than other engines. Two. High safety: Compared with the cut-tooth valve engine, the camshaft engine has higher safety because it does not have the possible risk of gear wear. 3. Save fuel consumption: It has better fuel economy and saves more fuel than other common engine types. However, the camshaft engine also has some disadvantages: 1. High maintenance cost: The maintenance cost of camshaft engines may be higher than that of other types of engines. Two.High-quality oil needs to be burned: high-quality fuel (such as No. 97 gasoline) needs to be used to ensure the high load output of the camshaft. 3. Output power is limited: Because the camshaft engine must be controlled by the camshaft to control the switch of the valve and throttle valve, its output power is physically limited and the output power cannot be further improved. In a word, camshaft engines are very common in today's vehicles and are also a widely accepted type of engine. It can provide the advantages of high efficiency, high safety and less emissions, but its disadvantages of relatively high maintenance costs should also be taken into account.

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