LIQUID E-CIGARETTE FEEDING DEVICE AND METHOD Russian patent published in 2021 - IPC A24F47/00 

FIELD: smoking accessories.

SUBSTANCE: present invention relates to electronic cigarette technology, and in particular, it relates to a device and method for feeding liquid in an electronic cigarette. Device for feeding liquid in an electronic cigarette comprises: a piezoelectric substrate, an insulating film covering the piezoelectric substrate from above, first anti-comb-type transducer and second anti-parallel comb-type converter, liquid storage chamber, flow channel and liquid outlet. Fluid storage chamber is provided with fluid inlet opening. Flow channel at one end is communicated with said liquid storage chamber and sealed, and at the other end is provided with a liquid outlet. First anti-comb-type transducer and the second anti-parallel comb transducer are firmly installed on the surface of the piezoelectric substrate and located between the piezoelectric substrate and the insulating film. Fluid storage chamber, flow channel and liquid outlet are arranged on outer surface of said insulating film. First anti-parallel comb transducer is located outside and opposite to the liquid storage chamber and the flow channel and is not in contact with the liquid storage chamber. Second anti-parallel-comb transducer is located under flow channel between fluid storage chamber and liquid outlet hole.

EFFECT: device for feeding liquid in an electronic cigarette is characterized by small dimensions, stable and uniform speed of tobacco liquid supply and possibility of speed regulation.

10 cl, 2 dwg