A liquid spray device includes a spray nozzle having at least one nozzle hole configured to spray a liquid, a pressurized liquid supply unit configured to pressurize a liquid and feed the pressurized liquid to the spray nozzle, and a controller configured to control an operation of the pressurized liquid supply unit such that the liquid to be sprayed from the nozzle hole flies in a state of splitting into droplets from a continuous flow. The nozzle hole has a hole diameter of 0.015 mm to 0.030 mm. The liquid has a viscosity of 0.6 mPa.Math.s to 4.0 mPa.Math.s. The controller controls a supply pressure of the pressurized liquid supply unit such that a velocity of the liquid to be sprayed from the nozzle hole is 10 m/s to 80 m/s, and that the number of droplets (droplets/s), which is the number of the droplets generated by the continuous flow splitting into the droplets per second, is in a range of 0.8×10.sup.5 to 9.0×10.sup.5.

A liquid spray device includes a spray nozzle having at least one nozzle hole configured to spray a liquid, a pressurized liquid supply unit configured to pressurize a liquid and feed the pressurized liquid to the spray nozzle, and a controller configured to control an operation of the pressurized liquid supply unit such that the liquid to be sprayed from the nozzle hole flies in a state of splitting into droplets from a continuous flow. The nozzle hole has a hole diameter of 0.015 mm to 0.030 mm. The liquid has a viscosity of 0.6 mPa.Math.s to 4.0 mPa.Math.s. The controller controls a supply pressure of the pressurized liquid supply unit such that a velocity of the liquid to be sprayed from the nozzle hole is 10 m/s to 80 m/s, and that the number of droplets (droplets/s), which is the number of the droplets generated by the continuous flow splitting into the droplets per second, is in a range of 0.8×10.sup.5 to 9.0×10.sup.5.

A method of determining an aperture area of a nozzle hole in a droplet jet device including a flow channel through which a liquid flows and the nozzle hole configured to spray the liquid, the method including determining the aperture area [m.sup.2] of the nozzle hole so that a jet flow of the liquid sprayed from the nozzle hole is fragmented into droplets, the liquid having a value of ρ.sup.0.45/σ determined from a density [kg/m.sup.3] of the liquid and a surface tension [N/m] of the liquid in a range no lower than 300 and no higher than 900, and a kinematic viscosity coefficient [m.sup.2/s] of the liquid in a range no lower than 1.0E-6 and no higher than 2.0E-5.

A method of determining an aperture area of a nozzle hole in a droplet jet device including a flow channel through which a liquid flows and the nozzle hole configured to spray the liquid, the method including determining the aperture area [m.sup.2] of the nozzle hole so that a jet flow of the liquid sprayed from the nozzle hole is fragmented into droplets, the liquid having a value of ρ.sup.0.45/σ determined from a density [kg/m.sup.3] of the liquid and a surface tension [N/m] of the liquid in a range no lower than 300 and no higher than 900, and a kinematic viscosity coefficient [m.sup.2/s] of the liquid in a range no lower than 1.0E-6 and no higher than 2.0E-5.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device configured to remove air from a fluid and comprising the nozzle.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device configured to remove air from a fluid and comprising the nozzle.

A sanitary shower (1), at least comprising: a housing (2) having at least one feed duct (4) for a liquid, opening into a pulsator chamber (3), a spray plate (5) having a great number of outlet nozzles (6) for the liquid, a plurality of chambers (7, 8), each of which is connected to the pulsator chamber (3) via a chamber inlet (9, 10), wherein the liquid can be supplied through each of the chambers (7, 8) to at least one outlet nozzle (6) of the spray plate (5), and a pulsator disk (11) arranged in the pulsator chamber (3) and movable by the liquid in such a way that the pulsator disk (11) can at least partially close at least one of the chamber inlets (9, 10) in an alternating manner.

A liquid delivery device includes a cylinder having a liquid retention section configured to retain a liquid, a piston configured to change a volume of the liquid retention section, a gas container configured to encapsulate a gas at pressure exceeding atmospheric pressure, a regulator which is coupled to the gas container, and is configured to adjust pressure of the gas delivered from the gas container, a gas flow channel having a supply flow channel configured to supply the gas delivered from the regulator to the piston, and a release-to-atmosphere flow channel configured to release the gas delivered from the regulator to an atmosphere, and a three-way valve provided to the gas flow channel to switch between delivering the gas delivered from the regulator to the supply flow channel and delivering the gas to the release-to-atmosphere flow channel.

A droplet jet device configured to form a liquid into droplets to jet the droplets, the droplet jet device including a main body having a flow channel through which the liquid circulates, and a jet nozzle having at least one nozzle hole and spraying the liquid from the nozzle hole, wherein defining the number of the nozzle holes as N, a diameter of the nozzle hole as r [m], and a contour length of a cross-sectional surface of the flow channel as L [m], the following formula is fulfilled.

[00001]$0.188<\frac{1}{N^2}.Math.\frac{L^2}{r^3}<1.58\times {10}^{16}$

A droplet jet device configured to form a liquid into droplets to jet the droplets, the droplet jet device including a main body having a flow channel through which the liquid circulates, and a jet nozzle having at least one nozzle hole and spraying the liquid from the nozzle hole, wherein defining the number of the nozzle holes as N, a diameter of the nozzle hole as r [m], and a contour length of a cross-sectional surface of the flow channel as L [m], the following formula is fulfilled.

[00001]$0.188<\frac{1}{N^2}.Math.\frac{L^2}{r^3}<1.58\times {10}^{16}$