| 摘要 |
A gas turbine engine arrangement for constant volume combustion including a combustion chamber arranged downstream of a compressor supplying combustion air and upstream of a turbine accepting exhaust gases from the combustion chamber as driving gases. A closable valve is arranged between the combustion chamber and the compressor for intermittent blocking of the flow between the compressor and the combustion chamber during constant volume combustion within the combustion chamber, while the exit end of the combustion chamber leading to the turbine is continuously open. The geometric configuration of the combustion chamber and of the exit from the combustion chamber is such as to assure constant volume combustion without the necessity of additional valving means for closing off the exit end of the combustion chamber. Preferred embodiments of the invention utilize compressor pressure responsive inlet valves at the combustion chamber as well as compressor speed responsive valves, said valves including check valves and externally operable side valves. Several preferred embodiments of the combustion chamber are divided, which each include measures for assuring optimum stratification and combustion of the fuel and air mixture in respective separate zones thereof. The combustion chamber volume and cross-section as compared to the cross-section of the exit from the combustion chamber leading to the turbine is extremely large so as to facilitate the constant volume combustion.
|
