Wheel space purge flow mixing chamber
US10125632B2 · kind B2 · utility
0Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Jul 6, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/232
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Cooling air extracted from a gas turbine engine compressor is sent to a nozzle vane cooling passage inlet, through the cooling passage, and to a purge tube of the vane. A mixing chamber formed in a diaphragm cavity receives fluid from the purge tube and directs it through exit passage(s) formed through a side wall of the mixing chamber and/or diaphragm cavity to a diametral surface of the diaphragm. The exit passage(s) can be inclined to induce a fluid velocity component substantially parallel to the diametral surface and/or in a rotation direction of a turbine wheel adjacent the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.