| 摘要 |
<p>Provided is a turbine which handles fluids having a plurality of pressures with a single or integrated turbine wheel so that the number of components is reduced, and costs are reduced. Provided is an expansion turbine (1) equipped with a radial turbine wheel (15) that has a main path (23) that gradually increases in height and that axially discharges fluid that flows therein while swirling from a main inlet (27) located at the outer circumferential side into the main path (23), with a radial flow as a main component, wherein the radial turbine wheel (15) has a sub-path (25) branching off from the side of a hub (17) of the main path (23) at a position radially inward of the main inlet (27) and extending rearward from the main path (23), the sub-path (25) has, at an outer circumferential end thereof, a sub-inlet (35) that is located at a position in the radial direction different from the main inlet (27) and that is supplied with a fluid having a pressure different from the pressure of the fluid supplied through the main inlet (27), and the main inlet (27) and the sub-inlet (35) are partitioned by a back plate portion (26), in which the gap between it and the main path (23) or the sub-path (25) is adjusted.</p> |
