VARIABLE NOZZLE UNIT AND VARIABLE DISPLACEMENT SUPERCHARGER

摘要

The outer diameter of a second nozzle shaft (65) of each variable nozzle (61) is less than the outer diameter of a first nozzle shaft (63) thereof. The first nozzle shaft (63) is integrally formed on one side surface of the each variable nozzle (61). A portion (61e) is provided to the other side surface of the each variable nozzle (61). The portion (61e) surrounds the second nozzle shaft (65) and is adapted to be capable of being in contact with a second nozzle ring (51). An inner nozzle flange (73) and an outer nozzle flange (75), which are capable of being in contact with a first nozzle ring (43), are integrally formed on the blade surface (61i) and the blade surface (61o) of the each variable nozzle (61) on the side facing the base section of the first nozzle shaft (63).