Abstract: A nozzle construction includes a housing having an elongated opening with an end that terminates in a reflector for redirecting ultrasonic signals along a desired direction of transmission. In the same housing, a sonic transducer directs sonic energy toward the reflector, which, after reflection, enters the conical nozzle and leaves the apparatus via a solid liquid stream for acting upon a test piece. Sets of fins are optionally located in the passageway for breaking up any tendency of the liquid to swirl which has been found to degrade the projected liquid column. A further set of fins located in the conical nozzle removes any swirling tendencies introduced between the cylindrical passage and the conical nozzle.

Abstract: A nozzle body has an elongated, conical passage with the smaller end opening facing in the direction it is desired the jet to travel. At right angles thereto, a fitting in the nozzle body interconnects with a supply of pressurized water. The pressurized water enters into a manifold or plenum surrounding a chamber in which a sonic transducer is located. The manifold wall has a plurality of openings arranged in a circle for directing pressurized water into the conical chamber along each of the openings. Water from the manifold serves to fill the enclosure containing the sonic transducer to provide full fluid coupling throughout the entire interior of the jet nozzle construction. A set of fins are arranged about the walls defining the conical passage to stabilize water moving therethrough and reduce any tendency to rotate on emission.