Gas turbine engine combustion equipment
US5862668A · kind A · utility
26Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R2900/03343
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A double annular combustor for a gas turbine engine is provided with annular arrays of main and pilot fuel injection modules. The main fuel injection modules are of the premix type so as to vaporise fuel. However, the pilot fuel injection modules are configured so as to function as both premix and airspray fuel injectors. During starting and low power conditions, the pilot fuel injectors are operational alone in their airspray mode. However during high power conditions, both the main and pilot fuel injection modules function as premix injectors. The arrangement reduces noxious emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.