What types of cylinders are there?

① Single-acting cylinder: only one end has a piston rod, which supplies air from one side of the piston to generate air pressure, which pushes the piston to generate thrust and returns by spring or self-weight.

② Double-acting cylinder: alternately supply air from both sides of the piston and output force in one or two directions.

(3) Diaphragm cylinder: the piston is replaced by diaphragm, and the force is only output in one direction, which is reset by spring.

④ Impact cylinder: This is a new type of component. It converts the pressure energy of compressed gas into the kinetic energy of piston's high-speed (10 ~ 20m/s) movement, thus doing work.

⑤ Rodless cylinder: the general term for rodless cylinder. There are magnetic columns and cable columns.

A cylinder that swings back and forth is called a swinging cylinder. The inner cavity is divided into two parts by blades, and air is alternately supplied to the two cavities. The output shaft swings, and the swing angle is less than 280. In addition, there are rotating cylinders, gas-liquid damping cylinders and stepping cylinders.

Extended data

Under the same displacement, increasing the number of cylinders can increase the engine speed, thus increasing the engine output power. In addition, increasing the number of cylinders can make the engine run more smoothly and the output torque and power more stable. Increasing the number of cylinders can make pneumatic vehicles easier to start and have better acceleration response. In order to improve the performance of pneumatic vehicles, the number of cylinders must be increased. Therefore, the number of cylinders of high-performance gas vehicles, such as luxury cars, sports cars and racing cars, is above 6 cylinders, with the most reaching 16 cylinders.

However, the increase in the number of cylinders cannot be infinite. Because with the increase of the number of cylinders, the number of engine parts increases proportionally, which makes the engine structure complicated, reduces the reliability of the engine, increases the weight of the engine, increases the manufacturing cost and use cost, increases the fuel consumption and makes the engine bigger. Therefore, the number of cylinders of gas truck engine is a suitable choice after weighing various advantages and disadvantages according to the purpose and performance requirements of the engine.

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