Constructive arrangement provided in nozzles for sprayers to be installed in self-propelled, trailed boom spray equipment or coupled with a linear cover bus and without the aid of wind, capable of being used next to the nozzle holder where the induction ring allows horizontal and vertical adjustment to the nozzles.

A method of additive manufacturing using magnetohydrodynamic (MHD) printing of liquid metal. A first current pulse is applied to a liquid metal in a nozzle to eject a droplet from a discharge orifice. A second current pulse is applied to the liquid metal in the nozzle to reduce an amplitude of the oscillations in a meniscus on the discharge orifice. The second current pulse can be either of an opposite or the same polarity as the first current pulse and is timed according to according to the oscillation.

In some embodiments, a self-aligned electrospray device can include a silicon wafer, a fluid reservoir, and a circuit. The silicon wafer can have a layer of electrically insulating material deposited on a top surface and a deposited layer of electrically conducting material. The silicon wafer and the deposited layers can have through holes. The electrically insulating layer may be undercut. The fluid reservoir can be mounted to a bottom surface of the silicon wafer for containing fluid. The circuit can provide an electric potential difference and be coupled between the layer of electrically conducting material and the fluid reservoir.

A method for fabricating a single electron transistor is provided. A substrate includes a substantially planar surface with a source electrode, a drain electrode, and a gate electrode thereon, with the source and drain electrodes spaced apart from one another by a gap. The source electrode and the drain electrode are electrified, and a single nanometer-scale conductive particle is electrospray deposited in the gap. The single nanometer-scale conductive particle has an effective size of not greater than 10 nanometers. At least one carbon nanotube is deposited on the substrate and subjected to dielectrophoresis to position the carbon nanotube within 1 nanometer of the single nanometer-scale conductive particle. The at least one carbon nanotube establishes a first connection between the source electrode and the single nanometer-scale conductive particle and a second connection between the drain electrode and the single nanometer-scale conductive particle.

A cosmetic component spraying device according to the present disclosure has a mixture including a cosmetic component and a matrix, and an air blower that blows air to the cosmetic component. A laser irradiation unit that irradiates the mixture with a laser light is further provided, with a peak wavelength of the laser light different from an absorption peak wavelength of the cosmetic component. According to the cosmetic component spraying device of the present disclosure, a cosmetic component can be suitably sprayed.

An object is built by depositing a mat on a build surface and utilizing a manufacturing process to position a structure over at least a portion of the mat to define an object. The object is removed from the build surface such that a first portion of the mat removed with the object is bonded to the structure, and a second portion of the mat removed with the object is unsupported by the structure. Alternatively, an object can be built by printing a conductive material over a surface to define a structure and utilizing the conductive material as a collector to control an electric field deposition over the structure to define an object where a first portion of the deposition is bonded to the structure and a second portion of the deposition is unsupported by the structure.

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 aerosol-generating device is provided, including: a first storage portion; a first liquid aerosol-forming substrate contained within the first storage portion; an electrospray device to generate a first aerosol from the first liquid aerosol-forming substrate, the electrospray device including a nozzle to receive the first liquid aerosol-forming substrate from the first storage portion, and a voltage circuit including a circuit ground, the voltage circuit to apply a voltage difference between the first liquid aerosol-forming substrate and the circuit ground; a second storage portion; a second liquid aerosol-forming substrate contained within the second storage portion; a heater to heat second liquid aerosol-forming substrate from the second storage portion; and a mixing chamber in fluid communication with the nozzle and the heater, the heater being downstream of the nozzle. A method of generating a mixed aerosol by the aerosol-generating device is also provided.

An improved electro hydrodynamic method is provided. The method comprises arranging (11) an electro hydrodynamic device inside an enclosure and distributing (12) positive and/or negative ions inside the enclosure during a charging period with a certain defined amount of power. The distribution of the positive and/or the negative ions inside the enclosure (20) is performed so that a predefined amount of charge is set on the interior of the enclosure (20). Within a predetermined period of time after the charging period has ended, the electrospinning device is activated so as to create a product. Finally, the product is removed from the device. The present invention offers a solution for the problem of non-identical initial process conditions for an electro hydrodynamic process caused by any electric charges on the equipment.

An electrospinning device (1; 30) is provided comprising: a container (2) for holding a liquid comprising a polymer melt or a polymer solution; a nozzle (3) arranged to outlet a stream of the liquid from the container; a collecting surface (4) for collecting electro spun material coming from the nozzle during an electrospinning process so as to form a fibrous structure (8) on the collecting surface (4); a voltage supply system (5) arranged to create a voltage difference between the nozzle and the collecting surface (4), one or more electrostatic emitters (10; 38) arranged to locally distribute positive and/or negative ions onto the fibrous structure, and one or more rotatable bodies (6; 36) arranged to cause the collecting surface (4) to face the nozzle (3) and the electrostatic emitters (10; 38) in turn.