What are the working principles of the cylinder

The cylinder is a cylindrical metal part that guides the piston to reciprocate in a straight line in the cylinder. The air in the engine cylinder expands to convert thermal energy into mechanical energy; the gas is compressed by the piston in the compressor cylinder and increases pressure. The casing of turbines, rotary piston engines, etc. are also called cylinders

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Determine the thrust and pull of the piston rod according to the force required by the cylinder. The selection of the cylinder should make the output force of the cylinder have a smaller margin. The cylinder diameter is small, the output force is insufficient, and the cylinder cannot work normally; but the cylinder body diameter is too large, which not only makes the equipment heavy and expensive, but also increases gas consumption and causes energy waste. In the fixture design, the force-increasing mechanism should be used as much as possible to reduce the size of the cylinder.

In the case of the same displacement, increasing the number of cylinders can increase the speed of the engine, thereby increasing the output power of the engine. In addition, increasing the number of cylinders can make the engine run more smoothly and make its output torque and output power more stable. Increasing the number of cylinders can make gasoline cars easier to start and accelerate their response. In order to improve the performance of gasoline vehicles, the number of cylinders must be increased. Therefore, the number of gas cylinders in high-performance gasoline vehicles such as luxury cars, sports cars, and racing cars is more than 6 cylinders, and most people have reached 16 gas cylinders.

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However, the number of cylinders cannot be increased indefinitely. Because of the increase in the number of cylinders, the number of engine parts will also increase proportionally, making the engine structure complex, reducing the reliability of the engine, increasing the weight of the engine, increasing the manufacturing cost and use cost, increasing fuel consumption, and making the engine The volume is large. Therefore, the number of engine cylinders is selected according to the use and performance requirements of the engine, after weighing all the pros and cons.