INLET DEVICE OF ANNULAR COMBUSTION CHAMBER Russian patent published in 2024 - IPC F23R3/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, specifically to inlet devices of continuous combustion chamber with controlled air flow. Inlet device of the annular combustion chamber, mainly of a gas turbine engine, comprises located between the coaxial branch pipes: a straightening apparatus, a damping section located downstream of it, a continuous diffuser, a vortex chamber communicated with the cavity of the continuous diffuser. At the inlet of the damping section there are convex projections and concave recesses alternating in a circumferential direction relative to the generating surfaces and oriented along the axis of the coaxial branch pipes. In the cross section the cavities are located opposite the outlet edges of the blades of the straightening apparatus.

EFFECT: invention allows reducing the length of the inlet device of the annular combustion chamber while maintaining the efficiency of the continuous diffuser by reducing the effect of large-scale vortices at the outlet of the straightening blades on the boundary layer.

6 cl, 7 dwg