135results about "Induction-charging spraying" patented technology

The invention relates to a coating device and to an associated coating method for coating components with a coating medium, in particular for painting motor vehicle body components and/or motor vehicle accessories with a paint. The coating device comprises at least one applicator unit (8, 9) for expelling the coating medium from at least one coating medium nozzle. Furthermore a drop generator (TE; TE') can be provided in order to impose a vibration and/or an instability on the coating medium in order to generate coating agent drops (70) and/or to break down the coating medium into drops (70). The applicator unit (8, 9) is preferably provided in order to expel at least one coherent coating medium jet (70') which breaks down into drops (70).

An apparatus and method for dispersing a volatile composition, which method comprises dispersing the volatile composition into an air steam; and generating an ion wind, thereby causing the molecules of the composition to become electrically charged. The composition can be an insect repellent, an insecticide, an anti-microbial, an anti-allergenic or a room-fragrancing composition

An electrostatic atomizing coating apparatus and method incorporate a rotary head having a base portion, an open end and a plurality of grooves formed radially on an inner peripheral surface of the open end, an inside diameter of the rotary head increasing from the base portion toward the open end, and a motor configured to rotate the rotary head to discharge a thread-shaped paint. A voltage is applied to the rotary head so as to form an electrostatic field between the open end of the rotary head and an earthed coating target and to electrostatically atomize the thread-shaped paint discharged from the open end. Voltage output from the generator is controlled so as to adjust an intensity of the electrostatic field and to control a particle diameter of the electrostatically atomized thread-shaped paint.

A method and apparatus for coating a substrate using one or more liquid starting materials. The substrate is coated by atomizing one or more liquid starting materials into droplets and vaporizing the droplets in a deposition chamber for before the starting materials react on the surface of the substrate. The droplets are guided towards the substrate with electrical forces before the droplets are vaporized.

A shaping air ring (10) is configured of a body (11), a cover (13) and a nozzle (15). A tapered conical protrusion (17) is provided in a front end of the nozzle (15) to abut on the cover (13) in contact therewith without a clearance therebetween. Numerous inclined recessed grooves (20) are provided on a forward tapered surfaces (17C) of the conical protrusion (17) over the entire periphery. Further, a first shaping air ejecting hole (23) is formed between each of the inclined recessed grooves (20) and an inner peripheral surface (13B2) of the cover (13) to eject shaping air toward a releasing edge (9E) of a rotary atomizing head (9). Second shaping air ejecting holes (24) are provided on an inner peripheral surface (16A) of the nozzle (15) to eject shaping air along an outer peripheral surface (9C) of the rotary atomizing head (9).

An apparatus for mixing a first material with a second material and then spraying the resultant material onto a surface. The second material is mixed with a gas before the being introduced to the first material. A static charge is created and deposited onto the resultant material to help align the resultant material particles.

A microfabricated silicon chip with a separation material, such as in situ prepared porous polymer monoliths in its microchannels is disclosed. The polymer monoliths are liquid-permeable and serve as microcolumns for liquid chromatography, which are prepared by in situ radical polymerization of a mixture containing vinyl monomers and solvents (porogen) in the microchannels. A method and system are disclosed to generate one or more electrospray plumes from one or more nozzles that provide an ion intensity as measured by a mass spectrometer that is approximately proportional to the number of electrospray plumes formed for analyses contained within the fluid. A plurality of electrospray devices can be used in the form of an array of miniaturized separate electrospray devices for the purpose of generating multiple electrospray plumes from multiple nozzles for the same fluid for analysis. This invention dramatically increases the sensitivity of microchip electrospray devices compared to prior disclosed systems and methods. The silicon chip having the packed microchannels disclosed herein finds application in coupling with mass spectrometry for sample analysis. Also disclosed is a separation block having multiple through-substrate channels filled with a separation material such as polymer monolith which can be stacked in multiple blocks for sequential two-dimensional chromatographic separation and integrated with the electrospray device.

An air assisted electrostatic liquid spray nozzle assembly having a relatively long elongated nozzle body with a spray tip and surrounding air cap disposed at a downstream end of the nozzle body. The spray nozzle assembly includes an upstream electrode for connection to a high voltage electric source, an elongated feed tube, an electrically enhancing stinger, and the spray tip which are secured and retained by the air cap in electrically conductive relation to each other such that liquid passing through liquid passages of the electrode, feed tube, stinger, and spray tip is discharged in an electrostatically charged pattern of liquid particles. The air cap is removable to permit easy removal and replacement of the spray tip, stinger, and liquid feed tube.

An apparatus for spraying and inducing an electrostatic charge upon a liquid in excess of 0.8 millicoloumb/kilogram is connectable to a boom fitted to a vehicle, such as an aircraft, having a dc power supply. The apparatus comprises a nozzle constructed from a substantially non-conductive material and includes a spray tip designed to provide a hollow conical spray pattern. A support member extends from the nozzle and supports a charging electrode for inducing an electrostatic charge upon the liquid sprayed through the nozzle. The charging electrode attaches to the support member and is electrically connectable to the dc power supply. The charging electrode includes a cylindrical portion and a plurality of corona discharge members extending inwardly from a distal end of the cylindrical portion adjacent to the spray tip. The charging electrode is positioned to permit the hollow conical spray pattern to pass unhindered therethrough.

A method for the application of at least two different powder coating layers to a substrate comprising the steps of application of a first powder coating layer followed by the application of a second powder coating layer, without any substantial curing of the first powder coating layer prior to the application of the second powder coating layer, followed by the simultaneous curing of the first powder coating layer and the second powder coating layer, wherein the first powder coating layer is applied to the substrate using a corona charging system and the second powder coating layer is applied to the substrate using a tribo charging system, or the first powder coating layer is applied to the substrate using a tribo charging system and the second powder coating layer is applied to the substrate using a corona charging system and the first powder coating layer and second powder coating layer have an opposite electrostatic polarity.

An electrostatic spraying assembly is provided. The spraying assembly includes a housing having a fluid inlet passage that is connectable to a fluid source and communicates with a plurality of discharge passageways each of which extends through the housing to a downstream end at a discharge end of the housing. The housing has a one piece construction and is made of an electrically insulative material. The spraying assembly also includes an electrode assembly. The electrode assembly includes a plurality of elongate electrode elements each of which is disposed in a respective one of the discharge passageways in the housing and an electrode header. The electrode header is electrically connectable to a voltage source and each of the electrode elements is electrically connectable to the electrode header.

The invention provides a fan-shaped electrostatic induction atomizing spray head with an automatically adjustable electrode, which comprises a spray head and a spray head seat, the spray head is arranged on the spray head seat, and electrode devices capable of moving along the spraying direction of a nozzle are uniformly distributed in the spray head seat near the spray head and are used for enabling spray droplets to inductively charge. The electrode device comprises an electrode and a piston rod; a plurality of electrode grooves are evenly distributed near the sprayer seat with the sprayer as the center, an electrode is placed in any electrode groove, one end of the electrode is connected with a piston rod, and the piston rod is loaded through external force to enable the electrode to move in the electrode groove. According to the invention, the position of the electrode can be automatically adjusted under the condition that the spray pressure is changed.