Method and apparatus for high throughput charge injection
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-005/00
F23D-011/32
출원번호
US-0138095
(2002-05-02)
발명자
/ 주소
Kelly, Arnold J.
출원인 / 주소
Charge Injection Technologies, Inc.
대리인 / 주소
Lerner, David, Littenberg, Krumholz &
인용정보
피인용 횟수 :
7인용 특허 :
13
초록
An apparatus for dispersing fluent material comprises a body defining a plurality of orifices arranged around a central axis and a charge injection device arranged on the central axis.
대표청구항▼
1. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around in a circle a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device
1. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around in a circle a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orifices,wherein each of said orifices has an exit on an exterior side of said body, said exits being disposed on said circle, said exits of said orifices being spaced in a radial direction from said central axis a first distance and said charge injection device is spaced in an axial direction from said exits of said orifices a second distance, said second distance being about said first distance.2. The apparatus of claim 1, wherein said exits of said orifices are disposed in a plane.3. The apparatus of claim 1, wherein said charge injection device comprises an electrode having an end surface disposed adjacent said orifices.4. The apparatus of claim 3, wherein said end surface of charge injection device comprises an edge disposed in alignment with said orifices.5. The apparatus of claim 4, wherein said edge comprises a plurality of projections with ends facing said orifices.6. The apparatus of claim 1, wherein said body has an interior chamber and further comprising an insulator disposed in said interior chamber so as to form a forward chamber adjacent said orifices.7. The apparatus of claim 6, wherein said charge injection device comprises an electrode mounted in said insulator.8. The apparatus of claim 6, wherein said insulator and said body define a distribution channel leading to said forward chamber.9. The apparatus of claim 8, wherein said body has an aperture defined therein and in communication with said distribution channel for delivering a fluent material to said distribution channel.10. The apparatus of claim 1, wherein said charge injection device comprises an electron gun.11. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged in a circle around a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orificeswherein each of said orifices has an entrance on an interior side of said body and an exit on an exterior side of said body, said entrances being positioned equidistant from said charge injection device, each of said orifices having a centerline that extends through said entrance and said exit and wherein said centerline of each of said orifices is oblique to said central axis so that said orifices have a canted arrangement with respect to said central axis.12. The apparatus of claim 11, wherein said orifices include a first orifice on a first side of the central axis and a second orifice on a second side of the central axis opposite said first side, the center line of said first orifice intersecting the center line of said second orifice.13. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orifices,wherein said body comprises a forward wall in which said orifices are formed and wherein each of said orifices has a diameter and the spacing of said orifices in said forward wall is at least about twice said diameter of each said orifice.14. The apparatus of claim 13, wherein said forward wall comprises a planar wall arranged perpendicularly with said central axis.15. The apparatus of claim 13, wherein said forward wall comprises a wall having a conical shape, the longitudinal axis of said conical shape being concentric with said central axis.16. The apparatus of claim 15, wherein the spacing of said orifices in said forward wall is at least about three times said diameter of each said orifice.17. The apparatus of claim 15, wherein said forward wall has an interior side and a recess in said interior side, said recess being disposed on said central axis, between said orifices.18. The apparatus of claim 13, wherein said forward wall includes a notch in which said orifices are formed.19. The apparatus of claim 18, wherein the spacing of said orifices in said forward wall is at least about four times said diameter of each said orifice.20. The apparatus of claim 13, wherein said forward wall has an interior side and at least said interior side in-between said orifices comprises a dielectric material.21. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orifices,wherein said at least one passage includes an interior space adjacent said orifices and further comprising a counterelectrode in the vicinity of said orifices and a dielectric structure disposed between said counterelectrode and said interior space, whereby said counterelectrode is electrically insulated from said interior space.22. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orifices,wherein said body defines a plurality of interior spaces, each interior space having a charge injection device and a plurality of orifices associated therewith, said orifices extending through said body to said interior spaces.23. The apparatus of claim 22, wherein said interior spaces are devoid of exposed electrically conductive surfaces other than at said charge injection device.24. Apparatus for dispersing a fluent material, comprising:(a) a body defining a plurality of orifices arranged around a central axis;(b) a charge injection device arranged on said central axis so that said orifices are arranged substantially equidistant from said charge injection device and said charge injection device imparts a net charge to a stream of fluent material delivered to said orifices; and(c) a power source arranged with said charge injection device to vary the net charge imparted to the fluent material cyclically in accordance with a pattern of variation so that the net charge injected repeatedly increases and repeatedly decreases.25. The apparatus of claim 24, wherein the net charge increases above a long-term breakdown value and repeatedly decreases below a long-term breakdown value whereby corona-induced breakdown of the apparatus is reduced.26. The apparatus of claim 24, wherein said power source is arranged to vary the net charge imparted to the fluent material so that a higher value of net charge is imparted for a first interval and a lower value of net charge is imparted for a second interval.27. The apparatus of claim 26, wherein said orifices include at least one first orifice closer to said charge injection device than at least one second orifice, and wherein the net charge imparted to the fluent material is varied so that the fluent material issuing from said at least one second orifice is dispersed.28. The apparatus of claim 26, wherein said power source is arranged to vary an operating voltage applied to said charge injection device.29. A method of dispersing a fluent material, comprising:a) passing a fluent material out a plurality of orifices arranged around a central axis;b) imparting the fluent material with a net charge by passing the fluent material past a charge injection device arranged on the central axis so that the fluent material passing out of each of the orifices is dispersed under the influence of the net charge,wherein the step of applying a net charge includes varying the net charge so that the net charge imparted to the fluent material repeatedly increases and decreases.30. The method of claim 29, wherein the net charge is varied so that a higher value of net charge is imparted to the fluent material for a first interval and a lower value of net charge is imparted to the fluent material for a second interval.31. The method of claim 29, wherein varying the net charge includes varying an operating voltage applied to a charge injection device.32. The method of claim 29, wherein the orifices include at least one first orifice closer to said charge injection device than at least one second orifice and the net charge is varied so that the fluent material issuing from said at least one second orifice is dispersed.
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