Particle or fluid jet formation device for e.g. sand blasting, has nozzle surrounded by hollow body that is formed for acceleration of medium that surrounds nozzle, where hollow body serves for absorbing sound that is produced at nozzle

摘要

The device has a nozzle (1), and a connection between the nozzle and a reservoir for a particle or fluid. The nozzle is surrounded by a hollow body (4) that is suitably formed for acceleration of a medium that surrounds the nozzle. The hollow body serves for absorbing sound that is produced at the nozzle. The hollow body comprises an outlet opening (3) for the accelerated medium at a jet outlet side of the nozzle.