INLET DEVICE OF THE ANNULAR COMBUSTION CHAMBER Russian patent published in 2023 - IPC F23R3/00 

FIELD: gas turbine engines.

SUBSTANCE: invention relates to the inlet devices of a continuous combustion chamber. The inlet device of the annular combustion chamber comprises a directing vane located between two coaxial nozzles and a non-separated diffuser located downstream of it, and at least one nozzle, for example, an outer one, comprises an annular shell forming an annular channel bounded by the front and rear end walls, a perforated partition, placed in the channel with the formation of a rarefaction chamber and a vortex chamber communicated with the cavity of a non-separated diffuser, and an expanding outlet pipe connected to the rear end wall. The blades of the directing apparatus are made with an internal cavity and each is provided with a slotted groove on the trailing edge in the middle part for a length of at least half the distance between two coaxial pipes, and the internal cavities of the blades are connected on one side with the rarefaction cavity, on the other, through the slotted grooves, with the flow part of the input device.

EFFECT: invention makes it possible to reduce the total length of the inlet device of the annular combustion chamber and increase the efficiency of work.

2 cl, 2 dwg