A device and method for emitting an electrospray of ionized particles is disclosed, comprising a reservoir, an emitter in communication with the reservoir and having openings, wherein the openings are configured to permit release of the liquid media therefrom in response to a dynamic magnetic field; and an element for generating a dynamic magnetic field that runs through the emitter. The element may comprise two orthogonal Helmholtz coil pairs. In another example embodiment, an electrospray thruster is disclosed. The electrospray thruster may comprise: a reservoir for accommodating a volume of liquid media capable of being ionized; an emitter grid comprising a plurality of emitters, wherein each emitter of the plurality of emitters is in communication with the reservoir and comprises an opening disposed therethrough; and an element for causing the liquid media to be ionized from the emitter by a dynamic magnetic field.

An electrostatic spray dryer for drying liquid into powder including an elongated cylindrical drying chamber having an electrostatic spray nozzle at an upper end and a powder collection vessel at a lower end. The powder collection vessel includes a removable and replaceable filter collections sock made of filter material for receiving and collecting dried powder from the drying chamber. For cleaning residual powder from an inside wall of the drying chamber, a scraper member is provided that is coupled by magnetic attraction to a manually removable driver on the external surface of the wall.

Systems, apparatuses, and methods for reducing humidity of air adjacent to a nozzle of an electrospinning apparatus, charged solution output by the nozzle, a solution path between the nozzle and a deposit surface, and/or the deposit surface. The apparatus can be configured to controllably output the charged solution and gas of a predetermined dryness for deposit of the charged solution on the deposit surface. The gas of the predetermined dryness can be provided adjacent to a nozzle tip of the nozzle from where the charged solution is output. The gas of the predetermined dryness may be output in a predetermined direction toward a focal point at, in front of, or behind the nozzle tip.

An electrode device includes a discharge electrode and a counter electrode, and discharges when a voltage is applied across the discharge electrode and the counter electrode. The discharge electrode is a columnar electrode having a discharge portion on its front end. The counter electrode faces the discharge portion. The counter electrode has a peripheral electrode portion and a projecting electrode portion. The peripheral electrode portion is disposed to surround an axis of the discharge electrode. The projecting electrode portion projects from a part of the peripheral electrode portion toward the axis of the discharge electrode. A distance from the peripheral electrode portion to the discharge portion is shorter than a distance from the projecting electrode portion to the discharge portion.

A spray ionization device is provided with: a first tube body having a first flow channel through which a first fluid can flow, and having, at one end thereof, a first outlet for spraying the first liquid; a second tube body having a second flow channel through which a second fluid can flow, and having, at one end thereof, a second outlet for spraying the second liquid; an outer tube that has a gas flow channel through which a gas can flow, the outer tube having, at one end thereof, a spray port that is covered with a porous member; and an electrode that is provided between the first flow channel, the second channel, and the first outlet or the second outlet and the porous member, the electrode allowing for a voltage to be applied to the first liquid and/or the second liquid by a power source.

A nozzle assembly, an ejecting device and an ejecting method are provided. The nozzle assembly includes an electrode and an insulating body portion. A first fluid channel is arranged in the insulating body portion, an opening is formed on the inner surface. A second fluid channel is arranged between the inner surface of the insulating body portion and the side surface of the electrode. An ejecting outlet is formed on the outer end surface. The second fluid channel is communicated with the first fluid channel at the opening. At least part of the second fluid channel is located between the first fluid channel and the electrode. In the first direction, the opening is located between the first end surface and the second end surface of the electrode.

An induction device for electrification of droplets of hydraulic nozzles comprises: an electrode comprising one or more attachment legs; and an induction electrode holder configured to receive the electrode, wherein the one or more attachment legs are fixed within tubular structures of the induction electrode holder, and wherein a finite distance is formed between an outer surface of each attachment leg in the one or more attachment legs and an inner surface of each tube of the tubular structures.

An insulated electrostatically-assisted insulated spraying extender (10) is described, which is installed on the spraying bar (100) of a spraying device and positioned adjacent to a hydraulic nozzle (20) that atomizes the spray solution, said extender (10) being equipped with an insulated internal shaft (12) for the passage of the power supply cable (30) and the placement of an encapsulated electric device (13) that feeds the induction electrode (151) surrounding the opening (21) of the hydraulic nozzle (20), causing the dielectric rupture of atomized drops, eliminating or decreasing the wetting of the induction electrode (151) and of the power supply cable (30), as well as of other electric parts that affect the efficiency and the full operation of the spraying nozzle, while hindering leakage of the electric current through cable (30) by contacting any section of the machine structure.

An inductive electrostatic atomization nozzle includes a nozzle body. The nozzle body has an internal gas flow channel and a liquid flow channel surrounding the internal gas flow channel. An electrode ring is arranged around the liquid flow channel at an inlet of the liquid flow channel. In the inductive electrostatic atomization nozzle, the electrode ring is arranged at the inlet of the liquid flow channel, which ensures that the electrode ring is located far away from the outlet of the inductive electrostatic atomization nozzle.

A sprayer includes a sprayer casing, a power module and a spray nozzle. The sprayer casing is configured to contain a liquid. The power module is connected to the sprayer casing and is configured to energize the liquid in the sprayer casing, so that the liquid carries a first charge. The spray nozzle is connected to the sprayer casing and is configured to atomize the liquid with the first charge and spray it onto the external object with the second charge. The first charge and the second charge are opposite. The sprayer of the present invention has an excellent atomization effect and an improved the utilization rate of the atomized liquid.