ACOUSTIC JET-EDGE GENERATOR Russian patent published in 2009 - IPC F23Q13/00 

FIELD: power engineering.

SUBSTANCE: in housing 1 the nozzle is made of covergent section 5 and divergent section 6. Central body 9 has the possibility of moving along central longitudinal axis 8 of the nozzle divergent section 6. Front surface 10 of central body 9 is located across central longitudinal axis 8. Some part of gas that passed through covergent section 5 of the nozzle, critical section 16 and divergent section 6 of the nozzle is slowed with front surface 10 of central body 9. As the result of slowing before front surface there appears detached compression shock 17. Periodic gas expansion of compression shock 17 and its communication with apprise supersonic flow generates intense acoustic radiation. Effect is strengthened by moving central body 9 along central longitudinal axis 8 by means of trunnion. The latter is made in the form of two cylindrical coaxial bushes 12, 13.

EFFECT: invention has resonant acoustic influence on heat and mass exchange processes by maximum converting of kinetic gas flow energy into acoustic radiation energy.

3 cl, 2 dwg