Low nitric oxide emission combustion system for gas turbines
US4081958A · kind A · utility
58Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1976 |
| Grant date | Apr 4, 1978 |
| Priority date | — |
| Expiry date | Jan 19, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R3/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Primary air to the fuel-air mixing chamber of a gas turbine engine is cooled to reduce generation of nitrous oxides. A porous disc separates the fuel-air mixture chamber from the combustion chamber and serves to uniformly mix the fuel and air to reduce the reaction temperature. A catalyst is sprayed on the disc surface in the combustion chamber to speed combustion. A heater embedded in the disc heats the disc and prevents excessive generation of nitrous oxides during the engine start-up. A metering valve can be used to regulate the temperature of the primary air by supplying heated secondary air to the primary air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.