GAS-TURBINE ENGINE REACTIVE JET SILENCER Russian patent published in 1998 - IPC

FIELD: civil and transport aviation; devices with high-velocity gas or liquid jets which are main source of noise. SUBSTANCE: silencer is located at exit section of reaction nozzle. It includes foam generating liquid supply branch pipe 1, foam generating chamber made in form of recess 2 and guide deflector 3. Walls of recess are profiled to lines of flow of potential vortex. Front wall of recess is connected with sharp edge 4 of planar or axisymmetrical nozzle 5 of gas-turbine engine. Supply branch pipe is provided with manifold 6 located on rear wall of recess. EFFECT: reduced overall dimensions and simplified construction. 2 cl, 1 dwg