Fuel injection system
US4817389A · kind A · utility
55Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Sep 24, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/232
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine combustor has a plurality of circumferentially fuel injectors. Two lower nozzles are pilot nozzles and are of the fuel pressure atomized type, and the majority of nozzles are of the air atomized type. A pressurizing valve maintains high fuel pressure to the pilot nozzles at all operating conditions. The fuel/air ratio for the pilot nozzles is optimized facilitating start up and increased stability during transient conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.