Patent ID: 7934666

Claim:
An apparatus for generating of liquid jet pulsations characterized in that it is composed of an acoustic system consisting of an acoustic actuator ( 1 ) connected to an electric power source, said acoustic actuator ( 1 ) comprising an electromechanical transducer ( 10 ) and a cylindrical waveguide ( 11 ), the cylindrical waveguide ( 11 ) having an emissive area that pulsates in a cylindrical portion of an acoustic chamber ( 2 ) of the acoustic actuator ( 1 ), an internal volume of said acoustic chamber ( 2 ) being filled with a pressure liquid ( 3 ), wherein a cross-section of the acoustic chamber ( 2 ) exceeds the emissive area of the cylindrical waveguide ( 11 ) by no more than 20%, said acoustic chamber ( 2 ) including a mechanical amplifier of pulsations ( 4 ) having a conical shape and a liquid waveguide ( 6 ) consisting of metal tubing and/or of hose, said mechanical amplifier of pulsations ( 4 ) is connected with a nozzle and/or nozzle system ( 7 ) by means of the liquid waveguide ( 6 ) that is fitted with a pressure liquid feed ( 5 ); said acoustic system is parallelly connected to the pressure liquid feed ( 5 ) between the nozzle and/or nozzle system ( 7 ) and an exit of the mechanical amplifier of pulsations ( 4 ) of the acoustic chamber ( 2 ).