Variable displacement turbine

摘要

A support pin (24) is disposed at a position in front of a front edge (19a) of a movable nozzle blade (19) in a state in which the movable nozzle blade (19) is located at a rating opening position B, set between a maximum opening position A and a minimum opening position C. The aerodynamic effect of the support pin when the flow rate is small is thus reduced, and the turbine efficiency when the flow rate is small is enhanced.