| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nozzle mounting structure for an exhaust turbine supercharger that is structurally simple and reduces thermal stress. <P>SOLUTION: In this nozzle mounting structure for the exhaust turbine supercharger, the nozzle for increasing the speed of exhaust gas supplied from a gas inlet casing 23 and leading the exhaust gas to a turbine moving blade for driving a rotor shaft comprises a nozzle outer ring 2, a nozzle inner ring, a nozzle vane 6 sandwiched therebetween, and a flange 8 formed on the nozzle inner ring 4 and extending radially inward, and is fastened to the gas inlet casing 23 and mounted. The nozzle mounting structure includes a nozzle supporting body for supporting the nozzle from a rotor disk side. The nozzle supporting body has a stepped shape on its edge. The flange 8 and the edge of the nozzle supporting body are configured to have a stepped shape, and a heat insulating space is provided between the stepped parts of the flange 8 and the supporting body on the radial direction side. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
