Wheel space purge flow mixing chamber
US10132195B2 · kind B2 · utility
0Cited by
14References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jul 2, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Cooling air extracted from a gas turbine engine compressor is sent to nozzle vane cooling passage inlets, through the cooling passages, and to purge tubes of a set of two or more vanes. A mixing chamber formed between the purge tubes in a diaphragm cavity receives fluid from the purge tubes and directs it through exit passage(s) formed through a wall of the mixing chamber to a surface of the diaphragm. The exit passage(s) can be inclined to induce a fluid velocity component substantially parallel to the surface and/or in a rotation direction of a turbine wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.