The impeller is attached to the shaft end of the high-speed motor’s rotor. The impeller is rotated at a high speed as it compresses the air entering through the inlet, then sends the compressed air to the outlet. The design of the impeller’s shape and air channel has always been one of the most advanced technical challenges. In recent years, Hermann Kemper Turbo brought together its aerodynamic technologies and successfully developed a new type of high efficiency impeller, which achieved even greater efficiency.