Alternating nozzles for radial inflow turbine

摘要

A radial inflow turbine may include a wheel, a first set of nozzle vanes surrounding the wheel and a second set of nozzle vanes surrounding the wheel. A first circumferential spacing between two adjacent nozzle vanes of the first set may differ from a second circumferential spacing between another two of the nozzle vanes of the first set.

主权项

1. A radial inflow turbine comprising:
a wheel; a first set of nozzle vanes surrounding the wheel, the nozzle vanes of the first set being circumferentially spaced equidistantly from one another; a second set of nozzle vanes surrounding the wheel, the nozzle vanes of the second set being circumferentially spaced equidistantly from one another; wherein a first one of the nozzle vanes of the first set has an output edge positioned on a first radial line of a stator; wherein a first one of the nozzle vanes of the second set has an output edge on a second radial line of the stator; wherein the first and the second radial lines of the stator are displaced from one another so that the output edges of the nozzle vanes of the first set are offset from the output edges of the nozzle vanes of the second set, and wherein the offset of the first set of nozzle vanes from the second set of nozzle vanes is one-half of a circumferential space between any two adjacent ones of the first set of nozzle vanes or one-half of a circumferential space between any two adjacent ones of the second set of nozzle vanes; wherein the first set of nozzle vanes and the second set of nozzle vanes are attached on opposite sides of the stator.