ROTARY DETONATION GAS TURBINE AND THE METHOD OF DETONATION COMBUSTION IN IT Russian patent published in 2021 - IPC F02C3/16 F02C5/04 

FIELD: mechanical engineering.

SUBSTANCE: rotary detonation gas turbine engine contains a shaft on which a rotor is rigidly mounted, made in the form of a monoblock, containing a closed centrifugal wheel made with main blades having the full length of their upper edge, and auxiliary blades shortened from the input side of the centrifugal wheel. Each auxiliary blade is located between two main blades, with the help of which the inlet channels of the centrifugal wheel are formed, and its outlet channels are formed with the help of the main and auxiliary blades, and profiled cavities are made at their ends. Detonation combustion chambers are installed at the cut of its outlet channels, each of which is made in the form of a pipe of constant cross-section, completely open at one end and closed tightly, firmly and sealed at the other end with a hemispherical, convex bottom, equipped with a fuel nozzle. The flow path of each combustion chamber is equipped with collectors with fuel injectors made in the form of frames and stringers. Each combustion chamber is made with a bend of its longitudinal axis along the radius, in the plane of rotation of the rotor, and all combustion chambers are rigidly connected to each other to form a single annular open flow path in such a way that the hemispherical cavity of the bottom of each combustion chamber is connected to the outlet section of the other, next to the detonation channel located in the direction of the rotor rotation. The number of input channels of the centrifugal wheel is even and equal to the number of combustion chambers, at least not less than four, and the number of output channels is also even, at least twice the number of its input channels and the number of combustion chambers, while at least two output channels are included in the side cutouts of each combustion chamber.

EFFECT: increased absolute and specific power of a rotary detonation gas turbine engine, as well as higher efficiency of its operation within the given overall restrictions on the diameter of the circumscribed circle of the rotors, as well as increased reliability of its operation in a self-similar mode, with gas-dynamic "locking" of its combustion chambers, and also simplification of its construction.

13 cl, 7 dwg