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公开(公告)号：EP0121035A3
公开(公告)日：1985-08-14
申请号：EP84100302
申请日：1978-10-25
Applicant: BOWLES FLUIDICS CORPORATION
Inventor： Stouffer, Ronald Denton
CPC classification number: B05B1/08 , F15C1/22 , Y10T137/2234
Abstract: A fluid dispersal device utilizes the Karman vortex street phenomenon to cyclically oscillate a fluid stream before issuing the stream in a desired flow pattern. A chamber has an inlet and outlet with an obstacle or island disposed therebetween to establish the vortex street. The vortex street causes the stream to be cyclically swept transversely of its flow direction in a manner largely determined by the size and shape of the obstacle relative to the inlet and outlet, the spacing between the obstacle and the outlet, the outlet area, and the Reynolds number of the stream. depending on these factors, the flow pattern of the stream issued from the outlet may be either: a swept jet, residing wholly in the plane of the device and which breaks up into droplets solely as a result of the cyclic sweeping, the resulting spray pattern forming a line when impinging on a target; or a swept sheet, the sheet being normal to the plane of the device and being swept in the plane of the device, the resulting pattern containing smaller droplets than the swept jet pattern and covering a two-dimensional area when impinging upon a target. A particular feature of the device is that it is moulded in one single piece from synthetic plastics material, the obstacle or island being an integral part of the single-piece moulding.
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公开(公告)号：EP0151815A3
公开(公告)日：1986-01-02
申请号：EP84116507
申请日：1984-12-31
Applicant: Bauer, Peter
Inventor： Bauer, Peter
CPC classification number: A46B11/00 , A46B15/0002 , A46B15/0016 , A46B2200/1066 , B05B1/08 , F15C1/22 , Y10T137/2273
Abstract: A small, but nevertheless high-flow fluidic oscillator has a dual level body portion including an interaction chamber in a first level. An inlet plenum supplies fluid to a supply nozzle which enters directly into the inlet end of the interaction chamber to direct a jet flow from the supply nozzle, through the interaction chamber and out of an outlet opening. A fluid passage is located at least partly in the second level of the body portion, and connecting passages on either side of the supply nozzle connect the fluid passage to the inlet end of the interaction chamber. The walls of the interaction chamber converge from the inlet end toward a neck portion and thereafter diverge and then converge again at the outlet so that a fluid column extends between the jet flow and the sidewalls of the interaction chamber, and moves cyclically back and forth through the fluid passage and the connecting passages to obtain interaction between the fluid column and the jet flow without the need for control nozzles.
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公开(公告)号：EP0208174A3
公开(公告)日：1987-04-15
申请号：EP86108196
申请日：1986-06-16
Applicant: BOWLES FLUIDICS CORPORATION
Inventor： Stouffer, Ronald Denton
Abstract: A fluid oscillator for issuing a sweeping jet of air has a continuous inertance loop which has a section passing through the power nozzle of the fluidic oscillator. The continuous inertance loop is essentially coplanar with the plane of the fluidic oscillator so the basic oscillator element can be two identical molded parts which snap fit together.
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公开(公告)号：WO1997007896A1
公开(公告)日：1997-03-06
申请号：PCT/US1996013770
申请日：1996-08-22
Applicant: FLUID PROPULSION TECHNOLOGIES, INC.
Inventor： FLUID PROPULSION TECHNOLOGIES, INC. , IVRI, Yehuda , WU, Cheng, H.
IPC: B05B01/08
CPC classification number: A61M11/005 , A61M15/0085 , A61M15/009 , A61M2016/0021 , A61M2016/0039
Abstract: The invention provides method and apparatus for nebulizing liquids. A liquid supplier (24) delivers a predetermined unit volume of liquid to the rear surface (40). A vibrator vibrates the thin shell member (36) to eject liquid droplets from the front surface (38) of the thin shell member.
Abstract translation: 本发明提供了雾化液体的方法和装置。 液体供应器（24）将预定单位体积的液体输送到后表面（40）。 振动器振动薄壳构件（36）以从薄壳构件的前表面（38）喷射液滴。
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公开(公告)号：EP0149184A3
公开(公告)日：1985-12-04
申请号：EP84115830
申请日：1984-12-19
Applicant: DAYTON RELIABLE TOOL & MFG. CO.
Inventor： Bachmann, Henry C. , Brown, Omar L. , Fraze, Ermal C. , Gregg, James R. , Wynn, David K
Abstract: @ An apparatus for transferring a relatively flat object from a first station (10) to a second station (60) includes a support (11) for the object at the first station, a substantially closed housing, and a piston disposed therein for sliding movement from a normal position to an activated position. An actuator (112) extends through the housing and is integrally formed with the piston for sliding movement thereby. Compressed air is selectively directed into the housing for movement of the piston to the activated position, whereby the actuator (112) strikes a blow edgewise of the object for propelling it toward the second station along a predetermined path (116). A pair of fingers (130) disposed at the second station define therebetween a portion of the path along which an incoming object enters the second station. Each finger includes a path wall having an end surface extending generally inwardly from the finger for blocking the object path for halting object movement. A spring pawl extending partially into the path from each finger prevents rebounding of the object from the end surfaces.
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Patent Agency Ranking
公开(公告)号：EP0056628A3
公开(公告)日：1982-08-11
申请号：EP82100248
申请日：1982-01-15
Applicant: Hans Grohe GmbH & Co. KG
Inventor： Bauer, Peter , Buzzi, Günther , Mayer, Werner
Abstract: Das Strahlaustrittselement weist mindestens einen vor zugsweise mehrere scheibenförmige Körper (16) auf, aus denen Fluid-Strahlen radial nach außen austreten und vorzugsweise in einer Kreissektorfläche liegen. Mindestens einer der scheibenförmigen Körper (16) ist um eine Drehach se verdrehbar bzw. verstellbar angeordnet. Durch gegensei tiges Verdrehen der winkelbereiche, in denen die Wasser strahlen austreten, läßt sich die von den Wasserstrahlen benetzte Fläche verändern. Mindestens einer der beiden scheibenförmigen Körper (16) weist einen Fluidic-Oszillator auf oder ist als Fluidic-Oszillator ausgebildet.
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公开(公告)号：WO1997025152A1
公开(公告)日：1997-07-17
申请号：PCT/US1996020935
申请日：1996-12-31
Applicant: HEWLETT-PACKARD COMPANY , PREDTECHENSKY, Mikhail
Inventor： HEWLETT-PACKARD COMPANY
IPC: B05B01/08
CPC classification number: B05B17/0607 , B23K3/0607 , B23K2101/40 , H05K3/1241 , H05K3/3468
Abstract: A simple yet highly reliable technique for ejecting a droplet of heated solder, or other liquid conductive material, is described. Small droplets of an electrically-conductive liquid are ejected on-demand from a drop generator (100) operating on a magnetohydrodynamic principle. The drop generator (100) consists of two substantially parallel conductive paths (14, 16) separated by a thin electrically-insulating material (18). A channel (12) for the conductive liquid contains a drop ejecting orifice (20), and the conductive liquid in the channel forms a first (16) of these two parallel conductive paths. The other path (14) is either a solid conductor or a second channel filled with the conductive liquid. A current on the order of 10-1000 amperes is pulsed through the two parallel conductive paths, and the interaction of the magnetic fields generated by the electric currents through the parallel paths with these currents forces a droplet (24) of the conductive liquid through the orifice (20) in the first channel (16). By adjusting the duration and/or magnitude of the pulsed current, the droplet size may be carefully controlled. In the preferred embodiment, the drop generator (100) is in the form of a self-contained replaceable cartridge.
Abstract translation: 描述了用于喷射加热焊料液滴或其它液体导电材料的简单且高度可靠的技术。 导电液体的小液滴按照磁流体动力学原理从液滴发生器（100）按需喷射。 液滴发生器（100）包括由薄的电绝缘材料（18）分开的两个基本平行的导电路径（14,16）。 用于导电液体的通道（12）包含液滴喷射孔（20），并且通道中的导电液体形成这两个平行导电路径中的第一（16）。 另一路径（14）是固体导体或填充有导电液体的第二通道。 大约10-1000安培的电流通过两个平行的导电路径被脉冲，并且由这些电流通过平行路径的电流产生的磁场的相互作用迫使导电液体的液滴（24）通过 第一通道（16）中的孔口（20）。 通过调节脉冲电流的持续时间和/或幅度，可以小心地控制液滴大小。 在优选实施例中，液滴发生器（100）是独立的可更换盒的形式。
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公开(公告)号：WO1996009121A1
公开(公告)日：1996-03-28
申请号：PCT/US1995011880
申请日：1995-09-18
Inventor： BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM , SMITH, Charles, V. , PRIEST, John, W. , DUBOIS, Patrick, N.
IPC: B05B01/08
CPC classification number: B23K3/0623 , B05B17/0607 , B22F1/0048 , B22F9/08 , B22F2009/0836 , B22F2999/00 , B41J2202/04 , H05K2203/013 , H05K2203/128 , B22F2202/01 , B22F2202/05 , B22F2202/06
Abstract: Apparatus and methods for making uniformly-sized and predictably-spaced droplets from high-temperature liquids. Liquid droplet generators having electromechanical driving elements (16) are coupled to a power supply (17) to apply pulsed excitation forces through a wall of the delivery tube (14) to a high-temperature liquid, e.g., a liquid metal, epoxy, or polymer. The excitation forces generated by the driver (16) induce capillary vibrations in the liquid within the delivery tube (14). Liquid jet streams having capillary vibrations when exiting an orifice (22) break up into groups of substantially uniformly-sized liquid droplets (26) shortly after leaving the orifice (22). Droplets (26) may be produced in a uniformly-spaced series, or individually on demand in response to a single burst of force from the driving element (16). A heat source (18) is also thermally coupled to the delivery tube (14) to maintain the liquid in a high-temperature state. Embodiments using heat-sensitive elements thermally insulate those elements from the wall of the heated delivery tube (14) and may also effectively cool the elements by one or more heat exchangers. A magnetohydrodynamic embodiment couples a magnetic field, having spaced points of maximum intensity, to a fluid stream exiting an orifice (22), causing the stream to break into droplets (26) in response to the periodic magnetic field.
Abstract translation: 用于从高温液体制造均匀尺寸和可预测间隔的液滴的装置和方法。 具有机电驱动元件（16）的液滴发生器耦合到电源（17），以将脉冲激励力通过输送管（14）的壁施加到高温液体，例如液态金属，环氧树脂或 聚合物。 由驱动器（16）产生的激励力引起输送管（14）内的液体中的毛细管振动。 离开孔口（22）时具有毛细管振动的液体喷射流在离开孔口（22）之后不久分解成大致均匀尺寸的液滴组（26）。 液滴（26）可以以均匀间隔的系列产生，或者响应于来自驱动元件（16）的单个力的突发而单独地根据需要生产。 热源（18）也热耦合到输送管（14）以将液体保持在高温状态。 使用热敏元件的实施例将这些元件与加热的输送管（14）的壁热绝缘，并且还可以通过一个或多个热交换器有效地冷却元件。 磁流体动力学实施例将具有最大强度的间隔点的磁场与离开孔口（22）的流体流相耦合，使得流响应于周期性磁场而破裂成液滴（26）。
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公开(公告)号：WO1980000543A1
公开(公告)日：1980-04-03
申请号：PCT/US1979000709
申请日：1979-09-04
Applicant: BOWLES FLUIDICS CORP
Inventor： BOWLES FLUIDICS CORP , STOUFFER R
IPC: B05B01/08
Abstract: A dual pattern nozzle comprises a fluid oscillator of the type which utilizes an obstacle or island (27) in the path of liquid flow to produce a vortex street downstream of island. A now splitter (28, 29) is disposed downstream of and sufficiently close to the island to prevent the now around the island from re-combining before reaching the flow divider, whereupon liquid vortices are alternately issued from each side of the divider. The spinning liquid breaks up into two patterns of droplets, the patterns being directed at respective spaced areas.
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公开(公告)号：WO1998010870A1
公开(公告)日：1998-03-19
申请号：PCT/US1997015314
申请日：1997-09-09
Applicant: BOWLES FLUIDICS CORPORATION
Inventor： BOWLES FLUIDICS CORPORATION , RAGHU, Surya , STOUFFER, Ronald, D.
IPC: B05B01/08
Abstract: A two-stage liquid spray device having an outlet region with an island (41) and an exit aperture (47) and a fluidic oscillator (33) driving said outlet region. The improvement for the spray device is operable at a low pressure to achieve full-area coverage with substantially uniform droplets and wherein all of the spray droplets land on the desired work surface and do not bounce. The fluidic oscillator includes an oscillation chamber (33), a power nozzle (31) for introducing a jet of liquid from a source into the oscillation chamber. The oscillation chamber is configured to produce a pair of alternating control vortices which substantially preclude wall attachment of said jet traversing said oscillation chamber, thus avoiding a heavy endedness in the oscillatory jet. An outlet from the oscillation chamber to the outlet region, whereby the jet rhythmically sweeps in end pulses to each side of the island and forms a sheet at the exit aperture. The sheet is rhythmically waved or swept in the ambient air to form the uniform droplets. A transverse slot defines the lateral boundary of the sweeping sheet.
Abstract translation: 具有出口区域的两级液体喷射装置，具有岛（41）和出口孔（47）和驱动所述出口区域的流体振荡器（33）。 喷雾装置的改进可在低压下操作以实现具有基本均匀液滴的全面覆盖，并且其中所有喷雾液滴落在所需工作表面上并且不反弹。 流体振荡器包括振荡室（33），用于将来自源的液体射流引入振荡室的动力喷嘴（31）。 振荡室被配置成产生一对交替的控制旋涡，其基本上排除穿过所述振荡室的所述射流的壁连接，从而避免了振荡射流中的重度结束。 从振荡室到出口区域的出口，由此射流以结束脉冲的方式有选择地扫过岛的每侧，并在出口孔处形成片材。 片材在环境空气中有节奏地挥动或扫过，以形成均匀的液滴。 横向槽限定了扫掠板的横向边界。
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