Device for tapping off hot gases from a combustion chamber and injector head equipped with such a device

摘要

A device for tapping off hot gases in a combustion chamber into which arrive a plurality of injectors has a tap-off means intended for conveying gases tapped off from the combustion chamber to an additional cavity. The tap-off means is formed of at least one tubular element having, in the region of its end opposite the combustion chamber a nozzle for individual adjustment of the flow of gases tapped off. A number of tap-off devices can be incorporated in an injector head comprising several injectors. The tap-off means comprises a cooling system using one of the cold propellants.