Droplet mist generator

Droplet mist generator for producing a droplet mist comprising:

• a pump chamber connected to a fluid reservoir and bounded by a casing wall;
• a nozzle area constructed in the casing wall, said nozzle area having a plurality of nozzles;
• a plate-shaped, piezoelectric flexural transducer positioned in the pump chamber and attached so that it forms an overhang and is bendable around a transverse axis that runs transversely to the direction of the overhang for alternatingly carrying out a displacement stroke, wherein fluid is driven towards the nozzles of the nozzle area and fluid droplets produced are ejected from the nozzles in the form of a droplet mist and a return stroke, whereby the piezoelectric flexural transducer is common to the plurality of the nozzles of the nozzle area;
• side openings formed between lateral edges of the piezoelectric flexural transducer and a portion of the casing wall lying opposite to said lateral edges, and wherein a connection between the fluid reservoir and the pump chamber empties into the pump chamber at the side of the piezoelectric flexural transducer turned away from the nozzle area, and;
• a control system by which the piezoelectric flexural transducer is controlled by voltage pulses for the displacement stroke, which occurs more quickly than the return stroke in which the fluid flows back through the side openings.