发明名称 |
VARIABLE-PITCH NOZZLE FOR A RADIAL TURBINE, IN PARTICULAR FOR AN AUXILIARY POWER SOURCE TURBINE |
摘要 |
A radial turbine nozzle of a turbine engine rotating about a central axis includes a first annular array of fixed blades and a second annular array with a same number of variable-pitch blades. The blades have pressure and suction surfaces. Each variable-pitch blade is connected to cups and is configured to be rotated by a controller about a geometric axis connecting centers of the cups. Each variable-pitch blade is mounted at a distance from the axis of the cups such that this axis of rotation is positioned facing the suction surface of the blade and substantially closer to a trailing edge than to a leading edge of that blade. The nozzle can modify the reduced flow admitted by a radial turbine in accordance with requirements of a thermodynamic cycle and produce a seal in an area of maximum load of the nozzle blades. |
申请公布号 |
US2014147278(A1) |
申请公布日期 |
2014.05.29 |
申请号 |
US201214122490 |
申请日期 |
2012.05.31 |
申请人 |
DEMOLIS JACQUES;MINEL LAURENT;VIGNAU HUBERT HIPPOLYTE;TURBOMECA |
发明人 |
DEMOLIS JACQUES;MINEL LAURENT;VIGNAU HUBERT HIPPOLYTE |
分类号 |
F01D9/02 |
主分类号 |
F01D9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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