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公开(公告)号：US4846407A
公开(公告)日：1989-07-11
申请号：US040666
申请日：1987-04-21
CPC分类号： B05B5/0255
摘要： An electrostatic spraying apparatus for spraying liquid has a spraying edge 8 provided with teeth 12. No parts of the apparatus provide a low potential influence near the spraying edge, keeping leakage losses to a minimum. At the voltage provided by a high voltage supply, the field strength at the tips of the teeth 12, is sufficient to form one ligament of liquid per tooth. The ligaments break up into droplets which have a size largely independent of fluctuations in field strength caused by varying the distance from the target to be sprayed.
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公开(公告)号：US4634057A
公开(公告)日：1987-01-06
申请号：US771167
申请日：1985-09-03
摘要： An electrostatic pump or pumping liquids having a resistivity in the range of 10.sup.10 to 10.sup.7 ohm cm has a pump housing. The pump housing includes a passageway through which the liquid is pumped, and a single injection electrode disposed upstream of the passageway. The electrode has a sharp electrically-conducting tip. A constriction in the region of the tip is shaped to conform to the surface configuration of the tip so that the liquid flows pass the tip in a laminar nonturbulent fashion through an orifice of reduced cross-section. The constriction is so dimensioned as to provide a high resistance path. A chamber is disposed downstream of the constriction and is of larger cross-section than the constriction. A discharged electrode is disposed in the chamber and is separated from the injection electrode by the chamber and the constriction. The injection and discharge electrodes are coupled to a high voltage generator to maintain an electric potential between the electrodes on the order of kilovolts.
摘要翻译： 具有1010至107欧姆厘米范围内的电阻率的静电泵或泵送液体具有泵壳体。 泵壳体包括通过液体被泵送的通道，以及设置在通道上游的单个注入电极。 电极具有尖锐的导电尖端。 在尖端区域中的收缩被成形为符合尖端的表面构造，使得液体流以层状非紊乱的方式通过减小横截面的孔流过尖端。 收缩的尺寸被设计成提供高电阻路径。 腔室设置在收缩部的下游，并且具有比收缩部更大的横截面。 排出的电极设置在室中，并通过室和收缩部与注入电极分离。 注入和放电电极耦合到高电压发生器以保持电极之间的电位约为千伏。
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公开(公告)号：US5490633A
公开(公告)日：1996-02-13
申请号：US118247
申请日：1993-09-09
CPC分类号： B05B11/048 , B05B5/0255 , B05B5/1608 , B05B5/1691
摘要： Relatively low resistivity liquids are formed into sprays under the influence of an applied electric field acting between a nozzle and the nozzle surroundings which may be at earth potential. The liquid issues from the nozzle as a ligament which undergoes necking to a diameter smaller than that of the nozzle orifice, thereby producing droplets with a volume median diameter less than the orifice diameter.
摘要翻译： 在施加的电场作用在喷嘴和可能处于地电位的喷嘴周围之间的电场的影响下，相对低电阻率的液体形成为喷雾。 液体从喷嘴出现问题，其作为韧带，其经历颈缩直径小于喷嘴口的直径，从而产生体积中值直径小于孔直径的液滴。
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公开(公告)号：US5042723A
公开(公告)日：1991-08-27
申请号：US469528
申请日：1990-03-13
CPC分类号： B05B5/003 , B05B5/0535 , B05B5/085 , B64D1/18
摘要： An apparatus is disclosed suitable for electrostatic spraying from fixed wing aircraft. The apparatus includes a linear electrostatic spraying nozzle 2 and electrodes 4 placed near the nozzle's spraying edge to intensify the electric field strength at the spraying edge sufficiently to produce ligaments of the liquid to be sprayed from the spraying edge. In order that the airstream due to the aircraft's movement does not destroy the ligamets, the sprayhead and the electrodes are positioned so that part of the airstream flows between them. The spray head and the electrodes are so shaped and positioned that when directed to spray in substantially the same direction as the airstream, a turbulence free wake is left in the region of the ligaments.
摘要翻译： PCT No.PCT / GB87 / 00609 Sec。 371 1990年3月13日 102（e）1990年3月13日PCT PCT 1987年9月22日PCT公布。 公开号WO89 / 02786 日期为1989年4月6日。公开了适用于固定翼飞机静电喷涂的装置。 该装置包括线性静电喷雾喷嘴2和放置在喷嘴喷射边缘附近的电极4，以强化喷雾边缘处的电场强度，足以产生从喷射边缘喷射的液体的韧带。 为了使飞机运动所产生的气流不破坏连接件，喷头和电极被定位成使得气流的一部分在它们之间流动。 喷头和电极的形状和定位方式使得当在与气流大致相同的方向上喷射时，在韧带的区域中留下无湍流的尾流。
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5.发明授权
公开(公告)号：US4788016A
公开(公告)日：1988-11-29
申请号：US62653
申请日：1987-06-16
CPC分类号： B05B5/002 , B01J2/04 , B05B5/0255 , B05B5/087
摘要： Electrostatic spraying apparatus and process for spraying liquids which form a coalescent resistant surface in flight in a particular environment to produce a powder or granular material. The process involves delivering a liquid to a spraying site of an electrostatic spray head; making contact with the liquid via an electrically conducting or semiconducting liquid contacting surface; charging the liquid contacting surface to a high voltage of one polarity relative to a reference surface to intensify the electric field strength at the spraying site sufficiently that the liquid at the spraying site is drawn out preponderantly by electrostatic forces into at least one cone from which a corresponding ligament issues and breaks up into a spray of electrostatically charged droplets; providing the environment in a space sufficient that droplets from the spray head form, in flight, particles having a substantially coalescent resistant surface; and collecting the particles so formed.
摘要翻译： 静电喷涂装置和喷雾液体的方法，其在特定环境中在飞行中形成聚结剂表面以产生粉末或颗粒材料。 该方法包括将液体输送到静电喷头的喷涂部位; 通过导电或半导体液体接触表面与液体接触; 将液体接触表面充电到相对于参考表面的一个极性的高电压，以增强喷涂位置处的电场强度，足以使喷雾位置处的液体被静电力主要地抽出到至少一个锥体中， 相应的韧带问题并分解成静电带电液滴喷雾; 在足够的空间中提供环境，使得来自喷雾头的液滴在飞行中形成具有基本上聚结的表面的颗粒; 并收集如此形成的颗粒。
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公开(公告)号：US5411211A
公开(公告)日：1995-05-02
申请号：US193185
申请日：1994-05-25
CPC分类号： B05B5/0537 , B05B5/053 , B05B5/1608 , B05B5/1675 , B05B5/1691 , B65D83/0005
摘要： An electrostatic spray gun includes a housing for receiving a replaceable fluid container, a nozzle from which fluid is to be sprayed, a device for expelling fluid from the container, and a high voltage generator for applying electrostatic potential to the fluid to form an electrically charged atomized spray at the nozzle. An electrical path from the generator to the nozzle passes through the fluid, entering the fluid prior to its emergence from the nozzle. The container is rigid and fluid is expelled from the container by a piston under pressure exerted thereon through a forward part of the generator.
摘要翻译： PCT No.PCT / GB92 / 01490 Sec。 371日期：1994年5月25日 102（e）日期1994年5月25日PCT提交1992年8月12日PCT公布。 公开号WO93 / 03853 日本1993年3月4日。静电喷枪包括用于接收可更换流体容器的壳体，要喷射流体的喷嘴，用于从容器排出流体的装置，以及用于施加静电电位的高压发生器 该流体在喷嘴处形成带电的雾化喷雾。 从发生器到喷嘴的电路通过流体，在从喷嘴出来之前进入流体。 容器是刚性的，流体通过在其上施加的压力的活塞从发生器的前部排出容器。
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公开(公告)号：US5292067A
公开(公告)日：1994-03-08
申请号：US843078
申请日：1992-03-02
CPC分类号： B05B11/048 , B05B5/0255 , B05B5/1608 , B05B5/1691
摘要： Relatively low resistivity liquids are formed into sprays under the influence of an applied electric field acting between a nozzle and the nozzle surroundings which may be at earth potential. The liquid issues from the nozzle as a ligament which undergoes necking to a diameter smaller than that of the nozzle orifice, thereby producing droplets with a volume median diameter less than the orifice diameter.
摘要翻译： 在施加的电场作用在喷嘴和可能处于地电位的喷嘴周围之间的电场的影响下，相对低电阻率的液体形成为喷雾。 液体从喷嘴出现问题，其作为韧带，其经历颈缩直径小于喷嘴口的直径，从而产生体积中值直径小于孔直径的液滴。
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公开(公告)号：US4829996A
公开(公告)日：1989-05-16
申请号：US17416
申请日：1987-02-24
申请人： Timothy J. Noakes , Ian D. Pavey , Douglas Bray , Raymond C. Rowe
发明人： Timothy J. Noakes , Ian D. Pavey , Douglas Bray , Raymond C. Rowe
CPC分类号： B05B5/002 , A61M11/001 , A61M15/02 , B01J2/04 , B05B5/0255 , B05B5/087
摘要： Apparatus, for example an inhaler, is disclosed in which a spray is formed electrostatically from an outlet 6 to achieve uniform droplet size. The spray is then discharged for its intended use--in the example inhaling. The spray is discharged completely by corona produced by a sharp discharge electrode 16 which is charged to a polarity opposite that of the liquid. In order to prevent the corona from spoiling the formation of the spray itself, the liquid of the outlet 6 is protected by a neutral shield electrode 8. The spray issues through a hole 14 in the shield electrode. The hole is sufficiently small to prevent corona getting through, yet sufficiently large to allow the spray through.
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公开(公告)号：US4801086A
公开(公告)日：1989-01-31
申请号：US201330
申请日：1988-05-31
申请人： Timothy J. Noakes
发明人： Timothy J. Noakes
CPC分类号： B05B5/0255
摘要： An apparatus and process for the electrostatic spraying of a mixture of a plurality of liquids, suitably liquids which react together rapidly to form a solid, liquids which are physically imcompatible, or liquids, such as paints, to provide novel optical effects. The apparatus includes a sprayhead formed with a plurality of channels which communicate with a common outlet means. The liquids are supplied to respective channels and meet at the outlet means. There they are subjected to an electrical field which causes a mixture of the liquids to be drawn from the sprayhead in the form of one or more filaments, the or each filament constaining a mixture of liquids in the proportions equal or substantially equal to the proportions in which the liquids were supplied to the sprayhead.
摘要翻译： 用于静电喷涂多种液体的混合物的装置和方法，所述混合物适当地液体快速反应以形成固体，物理上不相容的液体，或液体如油漆，以提供新的光学效果。 该装置包括形成有与公共出口装置连通的多个通道的喷头。 液体被供应到相应的通道并在出口装置处相遇。 在那里，它们经受电场，其导致液体以一个或多个细丝的形式从喷头引出的混合物，所述或每个细丝构成液体混合物的比例等于或基本上等于 液体被供应到喷头。
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公开(公告)号：US5538190A
公开(公告)日：1996-07-23
申请号：US429559
申请日：1995-04-27
CPC分类号： B05B5/0537 , B05B5/053 , B05B5/1608 , B05B5/1675 , B05B5/1691 , B65D83/0005
摘要： An electrostatic spray gun including a housing for receiving a replaceable fluid container, a nozzle from which fluid is to be sprayed, apparatus for expelling the fluid from the container and a high voltage generator for applying electrostatic potential to the fluid to form an electrically charged atomized spray at the nozzle. The replaceable fluid container is externally insulating and the electrical path from the generator passes through the fluid entering it at a point remote from the nozzle. A piston is employed to expel the fluid from the nozzle during spraying. The electrostatic spray gun has the advantage that it does not employ propellants and the paint need not be stored in a flexible plastic container thereby preventing loss of solvent during storage.
摘要翻译： 一种静电喷枪，包括用于接收可替换流体容器的壳体，要喷射流体的喷嘴，用于从容器排出流体的装置和用于向流体施加静电电位以形成带电雾化的高压发生器 在喷嘴处喷雾。 可替换的流体容器是外部绝缘的，并且来自发生器的电路径通过在远离喷嘴的点进入其的流体。 在喷涂过程中使用活塞来从喷嘴排出流体。 静电喷枪的优点是不使用推进剂，并且不需要将油漆储存在柔性塑料容器中，从而防止在储存期间溶剂的损失。
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