Method for a liquid jet formation and ejection and devices for use in said method

A method for a continuous liquid jet formation and ejection, the method comprising:

• providing continuous jet formation and ejection into air via a jet ejection generator comprising a chamber with an outlet surface distanced from a liquid inlet;
• placing and orienting the chamber on its supporting basis;
• providing the generator with liquid from a source of liquid;
• reducing turbulence and/or aligning liquid flow within the generator between liquid input into the chamber from the liquid inlet and a jet output from the outlet on the outlet surface of the chamber with forming a continuous jet;
• blocking the outlet by moving a liquid output shutter from the position of the completely open outlet to the position of the completely closed outlet;
• providing a possibility of forming a second continuous jet by equipping the outlet surface (3) of the chamber (2) with two adjacent and geometrically equal round outlets (4,5);
• defining positions of the shutter (11) in such a way that two end positions and a sequence of transitional positions are provided for the shutter (11), wherein in any end position the lumen of one outlet is completely open, and the lumen of another outlet is completely closed;
• while in any transitional position the lumens of both outlets are partially open with the total area of both open lumens of the first (4) and the second (5) outlets being constant and equal to the lumen area of one of the completely open outlets;
• configuring the shutter in the form of a streamlined flat shutter (11) adjacent to the outlet surface (3) of the chamber (2), wherein the flat shutter (11) is comprising two overlapping areas (18,19), directly partially or completely overlapping the corresponding outlets (4,5), one overlapping area for each outlet, wherein each overlapping area (18 or 19) is corresponding to a blind region on the shutter (11), providing a completely open lumen of the corresponding outlet in one end position of the shutter (11) and completely closed lumen of the same outlet in the other end position of the shutter (11);
• ensuring rapid sliding of the flat shutter (11) from one end position to another one through a sequence of transitional positions by a controlled drive (12) together with the coupler (13) when a control signal is given or its supply is stopped;
• providing rapid sliding of the flat shutter (11) along the outlet surface (3) of the chamber (2) from the inside, and a constant volume of its part immersed in the liquid;
• wherein rapid sliding is such as to ensure maintenance of the continuity of the ejected liquid jet (6);
• and
• placing the chamber (2) by exposing at least its outlet surface (3) to the open air, ensuring ejection of continuous liquid jets into the air.

A generator for a continuous liquid jets formation and ejection into air, comprising a chamber, wherein:

• a liquid inlet is distanced from the outlet surface with the outlet located on it;
• a means for reducing turbulence and/or aligning liquid flow are located inside the chamber between the liquid inlet and the outlet surface;
• an outlet surface is provided with the shutter for the outlet, wherein in closed position of the shutter the lumen of the outlet is completely closed, while in open position—the lumen of the outlet is completely open;
• a controlled drive is connected by the coupler with the shutter;
• and
• a chamber inlet is hydraulically connected to the source of liquid,
• the outlet surface (3) of the chamber (2) is equipped with two adjacent and geometrically equal outlets (4, 5), which are round openings, wherein the outlets (4, 5) are located in central area of the outlet surface (3), and configured for forming the jets (6) without interference and, optionally, laminar jets;
• the shutter (11) is made in form of the streamlined flat shutter (11) adjoined to the outlet surface (3) of the chamber (2) and configured for transition from one end position to another one through a sequence of transitional positions, providing minimal fluctuations in the liquid pressure in the chamber (2) during the transition,
• in any end position the lumen of one outlet (4 or 5) is completely open, while the lumen of another outlet (5 or 4) is completely closed,
• in each transitional position, the lumens of both outlets (4,5) are partially open, ensuring the total area of both open lumens of the first (4) and the second (5) outlets being constant and equal to the lumen area of one of completely open outlets, and
• the controlled drive (12) together with the coupler (13) are configured to ensure rapid sliding of the flat shutter (11) from one end position to another one when the control signal is given and/or stopped, wherein rapid sliding is such as to ensure maintenance of the continuity of the ejected liquid jet (6).