1. The use of nozzle ring can effectively improve the efficiency of the supercharger. The diversion form and direction of its blade angle and the area of the opening affect the speed of the rotor. If the speed of the supercharger rotor is reduced, the scavenging pressure of the fresh air of the diesel engine will be lower, the exhaust gas discharge temperature will increase, and the effect of the supercharger will decrease.
2. Under normal circumstances, it is not necessary to check the dynamic balance for routine disassembly and maintenance. If the rotor blades are defective or the bearing block is worn, the rotor must be checked if it is not used for a long time. The purpose is to extend the life of the bearing and reduce the vibration of the rotor.