Securing part structure of turbine nozzle and turbine using same
US9683459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2015 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Dec 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A securing part structure of a turbine nozzle provided with a plurality of turbine nozzle segments, each having a plurality of stator vanes, arranged annularly around an axis of a jet engine and secured between a turbine case and a shroud of the jet engine, wherein in the turbine nozzle segment, an arc-shaped outer band coupling distal ends of the plurality of stator vanes to each other is provided, a hook of the outer band is engaged with a nozzle support groove of the turbine case from behind, a recessed portion of the outer band is fitted with an anti-rotation tab from behind, and an anti-rotation slot formed in the shroud is fitted with a protruding portion from behind so that the turbine nozzle segment is secured between the turbine case and the shroud. Reduction of performance loss and extension of a life of the turbine case can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.