Fuel nozzle for a turbine engine with a passive purge air passageway
US8522554B2 · kind B2 · utility
5Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2214/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A secondary fuel nozzle for a turbine includes a passive purge air passageway which provides purge air to the secondary nozzle at all times that the nozzle is in operation. The passive purge air passageway draws in air from a location adjacent an upstream end of the nozzle. Because of a pressure differential between air located at the downstream end of the nozzle and air located at the upstream end of the nozzle, purge air will run through the passive purge air passageway at all times the nozzle is in operation. There is no need for a supply of compressed purge air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.