When the impeller turns, air trapped in each hollow ring or chamber is thrown outwards and then compressed by centrifugal force, running into the side channels before entering the next chamber in a screw-type motion.

• 当叶轮转动时，陷入每个中空环或腔体的气体被甩出，随之被离心力压缩，在进入下一个腔体前以螺旋方式流入侧腔。