The working wheel (impeller) installed on the shaft with blades rotates at high speed under the drive of the driving machine. The work done by the blade on the gas makes the gas obtain kinetic energy, which is transformed into pressure energy after the diffusion flow, so as to increase the gas pressure. At the same time, the gas temperature also increases correspondingly. After multi-stage combination, there can also be multi-stage combination of intermediate cooling, or even multi cylinder combination compression to obtain the final pressure required by the gas.
