Abstract: A device for impulse ejection of a medium is provided having an ejection tube for the medium to be ejected therefrom through an ejection end of the ejection tube by way of a propellant in pulsed fashion in an ejection direction. The device further includes a membrane in the area of the ejection end, the membrane being elastically deformable during ejection of medium for forming a penetration opening for the medium, and a nozzle element in the ejection tube. The nozzle element is adapted to be movable along the ejection direction between a rest position and an ejection position, wherein the nozzle element effects a deformation of the membrane in the ejection position to form the penetration opening. A method of impulse ejection and a membrane for a device for impulse ejection of medium, and a method for increasing the range of an impulse ejection of medium are also provided.

Abstract: The present invention relates to a device for impulse ejection of medium, comprising an ejection tube (1) for medium to be ejected therefrom through an ejection end of the ejection tube (1) by way of a propellant in pulsed fashion in an ejection direction (15), a membrane (6) in the area of the ejection end (1), said membrane being elastically deformable during ejection of medium for forming a passage opening (20) for medium, and a nozzle element (9) in the ejection tube (1), said nozzle element being adapted to be movable along the ejection direction between a rest position (9?) and an ejection position (9?), wherein the nozzle element (9) in the ejection position (9?) effects a deformation of the membrane (6) to form the passage opening (20) and in the rest position (9?) effects a slight deformation or no deformation of the membrane (6) and wherein the nozzle element (9) can be brought from the rest position (9?) to the ejection position (9?) when medium is ejected.