The difference between the cylinder and the cylinder

Cylinder is to guide the piston within the cylinder for the straight line reciprocating movement of the cylindrical metal parts. The air in the engine cylinder converts heat into mechanical energy by inflation; Gas in compressor cylinder piston compression to increase pressure. Turbine, rotary piston engine housing is usually also called 'cylinder' cylinder, cylindrical empty within the engine room, there is a driven by the pressure of the working fluid or expansion force, piston, some special type engine in a similar, but not of the cylindrical parts. Cylinder according to the size of the work force needed to determine the thrust and tension on the piston rod. In order to select the output force should make the cylinder when the cylinder is slightly allowance. If picked the small cylinder diameter, the output power is not enough, the cylinder does not work; But the diameter is too large, the device not only heavy, high cost and the gas consumption increases at the same time, cause energy waste. In fixture design, should as far as possible the power mechanism, in order to reduce the size of the cylinder. Under the condition of the same displacement, increase the number of cylinders can improve the speed of the engine, which can improve the output power of the engine. In addition, increase the number of cylinders can make the engine run more smoothly, make its output torque and power output is more stable. Increase the number of cylinders can gets easier to start, speed up more responsive. In order to improve the performance of the gas car must increase the number of cylinders. Therefore, luxury cars, sports cars, car such as high-performance gas above the number of cylinders in the cylinder, the bulls have reached cylinder. However, the increase of the number of cylinders can't unlimited. Because with the increase of number of cylinders, engine parts number also increases proportionately, so that the engine structure is complex, reduce the reliability of the engine, increase the engine weight, improve the manufacturing cost and use cost, any increase in fuel consumption, and the volume of the engine. Gas car engine, therefore, the number of cylinders are based on the purpose and performance requirements of engine, after weighing the advantages to make the right choice.