FIELD: propulsion engineering.
SUBSTANCE: central body of turbo reactive engine's nozzle contains a wall that forms inner cavity and contains a large number of apertures, which are perforated in the front wall at least. It also consists of one resonant cavity in the inner cavity that forms a resonator, and a rigidity that increases central body's mechanical durability. The resonant cavity is constrained by inner annular not perforated wall. A connection for compensation of the difference of volume widening is provided between the wall that forms inner cavity and the inner wall. Fnother group invention is related to the turbo reactive engine that contains a nozzle with the central body that was mentioned above.
EFFECT: decrease of cost and weight of the noise decreasing device which is mounted on the central body of turbo reactive engine's nozzle without substantial losses of noise decreasing quality.
8 cl, 2 dwg
