Traditional Culture Encyclopedia - The 24 Solar Terms - Principle and structure diagram of cylinder
Principle and structure diagram of cylinder
1, single-acting cylinder:
Single-acting cylinder has only one cavity, which can input compressed air, and its piston rod can only be pushed back by external force.
2. Double-acting cylinder:
Double-acting cylinder refers to a cylinder in which compressed air can be input into two chambers to realize bidirectional movement.
Performance of cylinder
The working conditions of the cylinder block are very bad. It must withstand the sharp changes of pressure and temperature in the combustion process and the strong friction of piston movement. Therefore, it should have the following performance:
1, sufficient strength and rigidity, small deformation, good position of all moving parts, normal rotation and low vibration and noise.
2. Good cooling performance. There is a cooling water jacket around the cylinder so that the cooling water can take away heat.
3, wear resistance, to ensure that the cylinder has enough service life.
Most cylinder blocks are made of cast iron or aluminum alloy. Aluminum alloy cylinder block is widely used because of its high cost, light weight and good cooling performance.
Basic structure and function of cylinder block
There are one or more cylindrical cavities on the cylinder block that guide the piston to move in it, which are called cylinders, and the lower part is the crankcase that supports the crankshaft. The cylinder block is usually made of high-quality gray cast iron, nodular cast iron, alloy cast iron and aluminum alloy.
The cylinder block is the assembly foundation of various mechanisms or systems of the engine, and it maintains the accurate positional relationship between the moving parts of the engine. There are two types of cylinder blocks: water-cooled and air-cooled.
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