TURBINE NOZZLE

To increase a flow velocity of a medium in a nozzle outlet part by suppressing a pressure loss of the medium in a turbine nozzle in order to improve fuel consumption of a turbine device.MEANS FOR SOLVING THE PROBLEM: A turbine nozzle 1000 has a plurality of blades 90, and forms a flow passage 92 in...

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1. Verfasser: KUNO NAOKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To increase a flow velocity of a medium in a nozzle outlet part by suppressing a pressure loss of the medium in a turbine nozzle in order to improve fuel consumption of a turbine device.MEANS FOR SOLVING THE PROBLEM: A turbine nozzle 1000 has a plurality of blades 90, and forms a flow passage 92 in which media flow in one direction between a leading edge 90C of one blade and a rear edge 90D of the other blade adjacent to each other. A throat 92C forming a narrowest part is provided between an upstream part and a downstream part of the flow passage, and a rear edge part 90D of each blade 90 has a steep inclined part 91 inclined more steeply than the upstream side of the throat 92C in a direction of widening the flow passage 92 from the throat 92C to the downstream side.SELECTED DRAWING: Figure 2 【課題】タービン装置の燃費向上のために、タービンノズルにおける媒体の圧力損失を抑えてノズル出口部における媒体の流速の高速化すること。【課題を解決するための手段】複数の翼90を有し、互いに隣接する一方の前記翼の前縁部90Cと他方の前記翼の後縁部90Dとの間に媒体が一方向に流通する流路92を形成するタービンノズル1000であって、前記流路の上流部から下流部の間に最狭部をなすスロート92Cを有し、各翼90の後縁部90Dは、スロート92Cから下流側にかけて、流路92を広げる向きに、スロート92Cよりも上流側に比して急峻に傾斜した急峻傾斜部91を有する。【選択図】図2