| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a structure of a turbine wheel, a setting structure of a second nozzle, and a flow passage structure for supplying a flow to the second nozzle, in which energy of a flow directing from the second nozzle disposed in a shroud side of a turbine wheel toward the turbine wheel can be more efficiently converted into rotational power. <P>SOLUTION: A turbine blade 11 is configured as divided into an upstream side blade 23 disposed from a gas inlet part to an intermediate part and a downstream side blade 25 disposed from the intermediate part to an outlet part, in which the upstream side blade 23 and the downstream side blade 25 are arranged to show shifted phases from each other in a circumferential direction. A first gas outlet 20 is provided for allowing gas from a scroll chamber 13 to flow into an upstream end of the upstream side blade 23. A trailing edge 27 of the upstream side blade and a leading edge 29 of the downstream side blade are disposed to overlap each other on a meridian plane-like shape; and a second gas outlet 26 is provided for allowing the gas to flow out from a shroud 16 is provided in the overlapped part and the nearby area. <P>COPYRIGHT: (C)2013,JPO&INPIT |
