What are the advantages of automobile scroll compressor?

High volumetric efficiency. Because the scroll compressor has no suction valve and clearance volume, the sucked gas can be completely discharged. Generally speaking, the volumetric efficiency of scroll compressor can reach 90% ~ 98%. However, due to the resistance of the suction valve, the reciprocating compressor hinders the suction of gas, and there is clearance volume, so the gas can't be completely discharged, and the gas that can't be discharged expands during the suction process, occupying part of the cylinder volume, so its volumetric efficiency is much lower than that of scroll compressor, generally only 65% ~ 75%.

Work goes well. When the scroll compressor works, several working cycles with different phases are carried out at the same time, and the peak of the previous working cycle overlaps with the trough of the next working cycle, so the total load changes little and the compressor works very smoothly.

Low noise, small vibration The noise of the compressor mainly comes from the mechanical impact and airflow pulsation of the intake and exhaust valves. Unlike the reciprocating compressor, scroll compressor has no suction valve, thus eliminating the noise generated by the suction valve. The noise of scroll compressor is generally 3 ~ 5dB lower than that of reciprocating compressor in the same specifications of automobile air-conditioning compressor. In addition, because the moving parts of the scroll compressor move in a circle, the moving radius is small and the inertia force is easy to balance, so the vibration is very small. . .

Less parts, high reliability. The number of key components of scroll compressor is only about 10% of the traditional piston type. The material with excellent scroll structure and performance makes the highest working speed of the compressor reach 10000r/min, while the relative motion speed of the main component scroll is only 0.4 ~ 0.8m/s, so the wear is small and the reliability is greatly improved.