Combustion chamber for gas turbine - with complete combustion and reduced pollution gives gradual admission of secondary air

摘要

The combustion chamber may be divided into sections or stages. Combustion air enters the first narrowe part of the chamber where it mixes with the fuel. Combustion begins at this stage. A secondary supply of air passes through the passages (5) to the second part of the combustion chamber. This secondary air also has a film cooling effect on the combustion area. The passages are also protected by a thermal screen (14). The partially consumed fuel and air mixture receives more air in the second part of the chamber (4) so that further combustion takes place and the combustion reactions are brought to a conclusion. The combustion chamber may be used in aircraft jet engines.