77results about "Induction-charging spraying" patented technology

An electrostatic coating system including of a novel technique of height adjustment through pressure sensing and feedback mechanism in twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s). A variable height electrostatic edible coating system provides uniform and efficient coating to ensure shelf-life extension, improved nutritional value and enhanced sensory attribute.

A disposable fluid delivery system for an electrostatic applicator. The system includes a nozzle cap including a distal end including a delivery outlet and an open proximal end. A nozzle housing can be included with a proximal inlet end and an open distal end connected to the open proximal end of the nozzle cap. A conductive insert is at least partially positioned between the open distal end and the proximal inlet end and includes a portion of a flow pathway formed at least partially between the nozzle cap, the nozzle housing, and the conductive insert. A high voltage connector is extended at least partially through the nozzle housing and electrically connected to the conductive insert and configured to be in electrical communication with a high voltage module and electrostatically charge fluid contents within the flow pathway.

A coating apparatus can include a spray applicator configured to discharge a coating material toward a surface of a workpiece, wherein the spray applicator includes an air shaping orifice, and wherein the spray applicator is configured to generate an electric field between the spray applicator and the workpiece, and a positioning system configured to adjust a position of the spray applicator relative to the surface of the workpiece. It can further include a control system configured to regulate operation of the spray applicator and / or the positioning system to: maintain the spray applicator within a coating distance, maintain a flow rate of shaping air through the air shaping orifice, and maintain an electrical potential of the electric field.

An electrostatic spraying device includes an electrostatic spraying main body configured to contain a liquid containing portion of a tubular cartridge having the liquid containing portion that contains a liquid and a nozzle for spraying the liquid. The electrostatic spraying main body includes a power source unit for supplying a voltage to the liquid, a containing space that contains the liquid containing portion, and a tubular housing internally having at least the power source unit and the containing space. The power source unit and the containing space are disposed at positions that do not overlap in a first direction of the housing and are disposed at positions where the power source unit and the containing space at least partially overlap in a second direction perpendicular to the first direction.

A liquid dispensing system (10) for dispensing highly viscous liquids such as lubricating oil. The system (10) includes a nozzle body (20) and elongated electrode (22) that define an annular liquid flow passage (46) communicating with a protruding conically configured terminal end (40) of the electrode. An end cap of the nozzle body defines a plurality of circumferentially spaced discharge orifices (49a) about the electrode (22) for controlling the discharge of electrically charged liquid onto the terminal end of the electrode for direction therefrom in a thin line, having a width of less than 0.1524 cm (0.06 inches).

The present disclosure is directed to a tool for operating a nozzle holder. The nozzle holder is configured to couple a spray nozzle to a spray device, and includes an outer ring movable between a holding position and a release position. The nozzle holder is configured to securely hold the spray nozzle when the outer ring is in the holding position, and release the spray nozzle when the outer ring is in the release position. The tool includes an elongated body including a first end that defines an annular rim and a pocket that communicates with the annular rim. The annular rim is configured to selectively engage the outer ring to move the outer ring from the holding position to the release position. The elongated body also includes a second end that defines a recess configured to selectively receive and hold a portion of the spray nozzle.

This invention discloses a spray drying system for drying a liquid into a powder, comprising: an elongated body; and closed arrangements at opposite upper and lower ends of the elongated body for forming a drying chamber within the elongated body. One of the closed arrangements includes a drying gas inlet for guiding drying gas into the drying chamber. A nozzle assembly is supported in one of the closed arrangements. The lower closed arrangement includes a powder collection container for collecting the dried powder in the drying chamber. The powder collection container is configured such that a covering gas can be guided into the interior of the powder collection container to cover the powder in the powder collection chamber, thereby protecting the powder from exposure to the drying gas from the drying chamber.

An electrostatic oiling system for use with single blanks in batch systems having an open spray chamber without the need for a negative vacuum chamber. Further, the provided electrostatic oiling system may utilize induction beams and a charge wall that allows for utilization of a smaller vacuum system. Further, the provided electrostatic oiling system may provide variable blank coverage without the need for metered pumps.

An electrostatic spray nozzle assembly is described that includes an induction ring and a fluid tip. The induction ring generates an electrical field for inducing an electrical charge on droplets of a feedstock liquid from the fluid tip that pass through an opening of the induction ring. The induction ring is electrically coupled to an electrical induction field source via a first conductive path comprising at least an electrically conductive pliable structure, such as a stainless steel spring. Feedstock flowing through the fluid tip is electrically coupled to a charge carrier source via a second conductive path provided by at least a conductive surface of a fluid tube coupled to the fluid tip. The first conductive path and the second conductive path are electrically isolated by an insulating barrier.

The invention relates to a high-voltage cable (6), in particular for electrostatically charging a paint in a painting system for painting motor vehicle body components (14) with a paint. The high-voltage cable (6) according to the invention has an electrically conductive first conductor (7) extending in the longitudinal direction of the cable. According to the invention, the high-voltage cable (6) additionally has an electrically conductive second conductor (9) extending in the longitudinal direction of the cable, wherein the second conductor (9) is electrically insulated from the first conductor (7). The invention further relates to a coating system having such a high-voltage cable (6) and to the novel use of such a high-voltage cable (6) in a coating system.

An electrostatic spray nozzle assembly is described that includes an induction ring and a fluid tip. The induction ring generates an electrical field for inducing an electrical charge on droplets of a feedstock liquid from the fluid tip that pass through an opening of the induction ring. The induction ring is electrically coupled to an electrical induction field source via a first conductive path comprising at least an electrically conductive pliable structure, such as a stainless steel spring. Feedstock flowing through the fluid tip is electrically coupled to a charge carrier source via a second conductive path provided by at least a conductive surface of a fluid tube coupled to the fluid tip. The first conductive path and the second conductive path are electrically isolated by an insulating barrier.

The invention relates to a high-voltage cable (6), in particular for the electrostatic charging of a coating in a coating system for coating motor vehicle body components (14) with a coating. The high-voltage cable (6) according to the invention has a first conductor (7) extending longitudinally and being electrically conductive. According to the invention, the high-voltage cable (6) additionally has a second conductor (9) extending longitudinally and being electrically conductive, wherein the second conductor (9) is electrically insulated from the first conductor (7). Furthermore, the invention also includes a coating system with such a high-voltage cable (6) and the novel use of such a high-voltage cable (6) in a coating system.

A nozzle for a painting system includes a first electrode, a second electrode, a first magnet and a second magnet. The first magnet is disposed between the first electrode and the second electrode when viewed in a direction parallel to a longitudinal axis of the nozzle. The second magnet is disposed between the first electrode and the second electrode when viewed in the direction parallel to the longitudinal axis of the nozzle. The first and second electrodes and the first and second magnets define a passage through which paint is configured to flow.

The invention relates to an operating method for electrostatically charging a coating agent in a coating system for coating components (e.g. vehicle body components) with a coating agent (e.g. paint) by means of an applicator (e.g. a rotary atomiser), comprising the following steps: • charging a high-voltage electrode (12), wherein a charging voltage (U) is at a high-voltage level at the high-voltage electrode (12) and a charging current (I) flows via the high-voltage electrode (12), • measuring the charging voltage (U) and / or the charging current (I) of the high-voltage electrode (12), and • determining a state variable (e.g. degree of contamination) of the high-voltage electrode (12) or of the applicator (3) from the measured charging voltage (U) and / or charging current (I). The invention also relates to a coating system for carrying out the operating method according to the invention.

The present invention discloses the design and development of an electrostatic coating system comprising of a novel technique of height adjustment through pressure sensing and feedback mechanism in twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s). Variable height electrostatic edible coating system provides uniform and efficient coating to ensure shelf-life extension, improved nutritional value and enhanced sensory attribute.

The invention relates to the field of coal mine goaf fire prevention and control, and discloses a coal mine goaf fireproof charge atomization device which comprises a drilling mechanism, a liquid conveying mechanism, an atomization mechanism, a charge mechanism and a diffusion injection mechanism. The drilling mechanism comprises a drilling machine, a drill rod and a drill bit. The drill rod and the drill bit are made of insulating explosion-proof materials, connected and integrally fixed to a drilling machine, the side walls are each of a double-layer design, and electric wires are arranged in an interlayer of the side walls. A water pipe passes through the drill rod, two ends of the water pipe are respectively connected with the liquid conveying mechanism and the atomizing mechanism, and the atomizing mechanism is fixed at the joint of the drill rod and the drill bit. The drill bit is of a divergent structure with the diameter gradually increased from the input end to the output end, and a charging mechanism and a diffusion jetting mechanism are arranged in the drill bit. Charged fog drops generated by the device can be used for realizing efficient and uniform spraying of a fire-proof material in a coal mine goaf, so that the occurrence of coal mine fire accidents is reduced.

The present disclosure provides an electrostatic nozzle and a controllable jet minimal quantity lubrication (MQL) grinding system. The electrostatic nozzle comprises a nozzle core; an upper nozzle body is connected above the nozzle core; a free space is formed between the upper nozzle body and the nozzle core for storing compressed air and reducing pressure; a lower nozzle body is connected below the nozzle core; a gas-liquid mixing chamber, an acceleration chamber and a nozzle outlet are sequentially arranged inside the nozzle core from top to bottom; and micro-bulges are uniformly distributed on an inner wall of the acceleration chamber.

A disposable fluid delivery system for an electrostatic applicator. The system includes a nozzle housing including an air supply port, a voltage port, and a delivery outlet. A voltage wire has a contact in communication with a delivery tube in fluid communication with the delivery outlet. A syringe includes a barrel portion and a plunger configured to advance fluid from within the barrel portion and through the delivery tube. A cartridge housing can at least partially enclose the nozzle housing, the voltage wire, and the syringe.

An electrostatic spraying device includes a spray unit that sprays a liquid. The spray unit includes a nozzle for spraying the liquid, a flow path for distributing the liquid to a spray hole provided at a nozzle tip portion, and a shut-off pin configured to advance and retract in the flow path and configured to seal the spray hole. The shut-off pin has a tip portion that is unexposed from the spray hole in a state where the spray hole is sealed.

In one embodiment, systems and methods include an electrospray device (102) for atomizing fluids comprising a body (114) defining a resonant microwave cavity (116), wherein the body comprises a radio frequency inlet (118) configured to inject a radio frequency signal received from a power source (104) into the resonant microwave cavity, wherein the resonant microwave cavity is configured to to amplify a voltage of the radio frequency signal. The device further comprises a field concentrating pole (120) disposed within the resonant microwave cavity configured to concentrate the amplified voltage at a first end of the field concentrating pole to form an electric field. The device further comprises a nozzle (130) disposed at the first end of the field concentrating pole and a fluid supply line (126) configured to provide a fluid disposed within the field concentrating pole and fluidly connected to the nozzle, wherein the fluid supply line is fluidly connected to a fluid source (128).

The durability of resin components can be improved by preventing ozone from staying in gaps where there is no air flow. A cylindrical gap is provided around the outer peripheral side of the head portion between the head portion and the resin cover portion covering the outer peripheral side of the head portion. Moreover, the head portion is provided with a pilot air introduction path guiding the pilot air exhausted from the switching valves to the cylindrical gap. In addition, the arm portion is provided with a pilot air exhaust path exhausting the pilot air from the cylindrical gap to the outside.

In accordance with one or more embodiments herein, an arrangement (300) for delivering individual droplets to a chemical analysis instrument (200), e.g. a mass spectrometer, is provided. The arrangement (300) comprises: a droplet generating arrangement (310), configured for generating electrically charged droplets; and a droplet delivery arrangement (100), arranged to deliver a droplet (350) received from the droplet generating arrangement (310) to an instrument inlet (210) of the chemical analysis instrument (200). The droplet delivery arrangement (100) comprises: a quadrupole (110), arranged to electrodynamically focus droplets received from the droplet generating arrangement (310) into a collimated beam; and a sheath (120), arranged for controlling the environmental conditions within the droplet delivery arrangement (100). A method for delivering individual droplets to a chemical analysis instrument (200) is also provided. The droplets are preferably picolitre droplets.

Devices, systems, and methods are directed to applying magnetohydrodynamic forces to liquid metal to eject liquid metal along a controlled pattern, such as a controlled three-dimensional pattern as part of additive manufacturing of an object. Electric current delivered to a meniscus of the liquid metal in a quiescent state can be directed to exert a pullback force on the liquid metal. The pullback force can be sufficient to draw the liquid metal, in the quiescent state, in a direction toward the nozzle to reduce the likelihood of unintended wetting of surfaces of the nozzle between uses of the nozzle.

The present disclosure is directed to a tool for operating a nozzle holder. The tool may include an elongated body extending between a first end and a second end opposite the first end, the second end defining a recess configured to selectively receive and hold a portion of the spray nozzle. The tool may include a nozzle storage receptacle formed in the elongated body between the first end and the second end, the nozzle storage receptacle configured to selectively receive and hold the spray nozzle. The nozzle storage receptacle defines an aperture that extends through the elongated body between a first lateral side of the elongated body and a second lateral side of the elongated body opposite the first lateral side.

To provide an electrostatic applicator device equipped with a disposable cartridge for storing various solutions.SOLUTION: Provided is a disposable fluid delivery system for an electrostatic applicator 100. The system includes a nozzle housing with an air supply port 59, a voltage port, and a delivery outlet. A voltage wire has a contact in communication with a delivery tube in fluid communication with the delivery outlet. A syringe includes a barrel portion and a plunger configured to advance fluid from within the barrel portion through the delivery tube. A cartridge housing can at least partially enclose the nozzle housing, the voltage wire, and the syringe.SELECTED DRAWING: Figure 1A

A liquid dispensing system (10) for dispensing a highly viscous liquid such as a lubricating oil. The system (10) includes a nozzle body (20) and an elongated electrode (22) that define an annular liquid flow path (46) that communicates with a conically configured end (40) of the electrode that protrudes. The end cap of the nozzle body defines a plurality of discharge orifices (49a) circumferentially spaced around the electrode (22) and controls the discharge of the charged liquid to the end of the electrode for guiding in a thin line having a width of less than 0.1524 cm (0.06 inches) from the electrode.

An electrostatic oiling system for use with single blanks in batch systems having an open spray chamber without the need for a negative vacuum chamber. Further, the provided electrostatic oiling system may utilize induction beams and a charge wall that allows for utilization of a smaller vacuum system. Further, the provided electrostatic oiling system may provide variable blank coverage without the need for metered pumps.

In one embodiment, systems and methods include an electrospray device for atomizing fluids comprising a body defining a resonant microwave cavity, wherein the body comprises a radio frequency inlet configured to inject a radio frequency signal received from a power source into the resonant microwave cavity, wherein the resonant microwave cavity is configured to to amplify a voltage of the radio frequency signal. The device further comprises a field concentrating pole disposed within the resonant microwave cavity configured to concentrate the amplified voltage at a first end of the field concentrating pole to form an electric field. The device further comprises a nozzle disposed at the first end of the field concentrating pole and a fluid supply line configured to provide a fluid disposed within the field concentrating pole and fluidly connected to the nozzle, wherein the fluid supply line is fluidly connected to a fluid source.