| 主权项 |
1. A variable-capacity turbocharger comprising:
a turbine impeller which includes turbine blades; a plurality of nozzle blades, each rotatable around a respective shaft portion of each of the nozzle blades, disposed at the periphery of the turbine impeller; a shroud surrounding a tip side of the turbine blades; an opposing wall that is separated from the shroud in a height direction of the nozzle blades; and a nozzle sandwiched by the shroud and the opposing wall, the nozzle being provided with the nozzle blades, wherein
a leading edge of the nozzle blades in the height direction of the nozzle blades has a curved-line shape over the entire length of the leading edge relative to a distance from the shaft portion of the nozzle blades to the leading edge which changes depending on a height position of the nozzle blades, anda trailing edge of the nozzle blades in the height direction of the nozzle blades has a straight-line shape such that a distance from the shaft portion of the nozzle blades to the trailing edge being constant irrespective of the height position of the nozzle blades. |
