公开(公告)号：EP2056968B1

公开(公告)日：2014-06-18

申请号：EP07796261.1

申请日：2007-06-18

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： GOPALAN, Shridhar ,  RUSSELL, Gregory

IPC: B05B1/08 ,  B05B1/26 ,  F15C1/22 ,  B05B1/14 ,  B60S1/52

CPC classification number: B05B1/08 ,  B05B1/14 ,  B05B1/26 ,  B60S1/52 ,  Y10T137/2093 ,  Y10T137/2109

公开(公告)号：EP1827703B1

公开(公告)日：2012-08-01

申请号：EP04822374.7

申请日：2004-11-01

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： GOPALAN, Shridhar ,  RUSSELL, Gregory

IPC: B05B1/08 ,  B60S1/52 ,  F15C1/22

CPC classification number: F15C1/22 ,  B60S1/52

Abstract: A fluidic oscillator (2) suitable for use at colder temperatures for generating an exhaust flow in the form of an oscillating spray of fluid droplets has an inlet (12) for pressurized fluid, a pair of power nozzles (14) configured to accelerate the movement of the pressurized fluid, a fluid pathway (10) that allows for the flow of pressurized fluid between its inlet (12) and the power nozzles (14), an interaction chamber (18) which is attached to the nozzles (14) and receives the flow from the nozzles, a fluid outlet (20) from which the spray exhausts from the interaction chamber (18), and a means for increasing the instability of the flow from the power nozzles (14). In a first preferred embodiment, said means comprises a protrusion (4) that extends inward from each side of the fluid pathway (10). In a second preferred embodiment, said means comprises a step (24) in the height elevation of the floor of the power nozzles (14) with respect to that of the interaction chamber (18).

公开(公告)号：EP2222408A1

公开(公告)日：2010-09-01

申请号：EP08855935.6

申请日：2008-12-05

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： RUSSELL, Gregory ,  GOPALAN, Shridhar ,  SOUTH, Christopher ,  HESTER, Russell ,  KOEHLER, Eric ,  ALLEN, Kerrie ,  SRIDHARA, Srinivasaiah

IPC: B05B1/08

CPC classification number: B05B1/02 ,  A01G25/00 ,  B05B1/08 ,  B05B1/14 ,  B05B1/304 ,  B05B15/65 ,  B05B15/70 ,  B05B15/74

Abstract: A long throw Pop-Up Irrigation Nozzle assembly has no oscillating or rotating parts and includes a cylindrical body having a fluid inlet and a sidewall defining at least one fluidic circuit configured to generate a selected spray pattern when irrigation fluid flows through the body. In order to throw long distance, droplet velocity, droplet size and droplet initial aim angle determine the throw to provide a low precipitation rate (“PR”) for fluidic sprays. The nozzle assembly and method of the present invention achieve a PR of 1 in/hr or less and good spray distribution with a scheduling coefficient (“SC”) of about 1.5 without utilizing any moving components to provide a significantly more cost effective nozzle assembly, as compared to prior art rotator nozzles.

公开(公告)号：EP1675686B1

公开(公告)日：2007-12-12

申请号：EP04796157.8

申请日：2004-10-19

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： GOPALAN, Shridhar

IPC: B05B1/08

CPC classification number: B05B1/08 ,  F15C1/22

Abstract: A fluidic oscillator (2) suitable for use at colder temperatures for utilizing a pressurized liquid to generate a uniform spatial distribution of droplets has (a) an inlet (28) for the pressurized liquid, (b) a set of three power nozzles (24) that are fed by the pressurized liquid, (c) an interaction chamber (26) attached to the nozzles and which receives the flow from the nozzles, wherein this chamber has an upstream (26a) and a downstream (26b) portion, with the upstream portion having a pair of boundary edges (26c, 26d) and a longitudinal centerline (26e) that is approximately equally spaced between the edges, and wherein one of the power nozzles (24) is directed along the chamber's longitudinal centerline (26e), (d) a throat (30) from which the liquid exhausts from the interaction chamber (26), and (e) an island (24) located in the interaction chamber, with this island being situated downstream of the power nozzle (24) that is directed along the chamber's longitudinal centerline (26e).

公开(公告)号：EP1326569A1

公开(公告)日：2003-07-16

申请号：EP01981307.0

申请日：2001-10-22

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： STOUFFER, Ronald, D. ,  RUSSELL, Gregory, A. ,  SANTAMARINA, Aland

IPC: A61H1/00 ,  F15C1/08

CPC classification number: F15C1/22 ,  A61H9/0078 ,  Y10T137/2076

Abstract: a backload-responsive fluidic switch having high pressure recovery of more than 50% comprises a body member with a power nozzle (PN) having a width W and a centerline CL which is adapted to be coupled to a source of fluid under pressure for issuing a jet of fluid along the centerline (CL). A pair of diverging fluid flow passages (16, 18) have a common connection with said power nozzle (PN) and respective bounding walls, each respective bounding wall diverging from the centerline (CL) no more than about 50 degrees, and a splitter (40) defining respective inner walls of said pair of diverging walls (A2), the splitter (40) being spaced a distance of about 3W from the power nozzle. Inflatable bladder(s) (12, 13) connected to the diverging fluid flow passage(s), and a vent (V1, V2) connected to the other of said fluid flow passages.

Abstract translation: 具有高于50％的高压恢复的反向负载流体开关包括具有宽度为W的动力喷嘴（PN）和中心线CL的主体构件，该主体构件适于联接到压力流体源上以发出 沿着中心线（CL）的流体射流。 一对发散流体流动通道（16,18）与所述动力喷嘴（PN）和相应的边界壁具有公共连接，每个相应的边界壁从中心线（CL）偏离不超过约50度，并且分流器 40）限定所述一对发散壁（A2）的相应内壁，所述分离器（40）与所述动力喷嘴隔开大约3W的距离。 连接至发散流体流动通道的可膨胀囊（12,13）以及连接至所述流体流动通道中的另一个的通气口（V1，V2）。

公开(公告)号：EP1053059A1

公开(公告)日：2000-11-22

申请号：EP99963977.6

申请日：1999-12-10

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： SRINATH, Dharapuram, N. ,  KOEHLER, Eric

IPC: B05B1/08 ,  B05B1/14 ,  B05B1/30

CPC classification number: B05B1/08 ,  B05B15/40 ,  Y10S239/03 ,  Y10S264/76 ,  Y10T29/4998 ,  Y10T137/2224 ,  Y10T137/2234

Abstract: A molded fluidic device having a power nozzle with a width W and a coupling passage coupling a source of fluid to said power nozzle. The coupling passage has a planar enlargement and a plurality of posts spaced across the enlargement, the spacing S between each post being less than the width of the power nozzle with the sum of spacing S being greater than the width W.

公开(公告)号：EP0894026A1

公开(公告)日：1999-02-03

申请号：EP97918502.0

申请日：1997-04-15

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： STOUFFER, Ronald, D.

IPC: B60S1 ,  B05B1 ,  F15C1

CPC classification number: B05B1/08 ,  B60S1/52 ,  F15C1/08 ,  F15C1/22 ,  Y10T137/2234

Abstract: A vehicle nozzle system having a source of washer liquid (14) under pressure, a fluidic oscillator (11) comprising a housing and a fluidic insert having a power nozzle, an oscillation chamber (oc) having an upstream end (pn) coupled to the power nozzle for issuing a jet of washer liquid into the oscillation chamber and a downstream end having an outlet aperture (oc'') for issuing a jet of wash liquid to ambient, and side and top and bottom walls, an oscillation inducing silhouette in the oscillation chamber for causing said jet of wash liquid to rhythmically sweep back and forth between the sidewalls in the oscillation chamber. Top and bottom walls of the oscillation chamber first diverge for a predetermined distance in a downstream direction and then convert towards each other through said outlet aperture. This enables the deflection angle to be adjusted for different vehicles and applications by changes to the fluidic insert without changes to the housing.

Abstract translation: 一种车辆喷嘴系统，其具有处于压力下的清洗液体源（14），流体振荡器（11），其包括壳体和具有动力喷嘴的流体插入件，振荡腔室（oc），其上游端（pn） 用于向振荡腔室内喷射清洗液的喷射动力喷嘴，以及具有用于向周围壁和侧壁以及顶壁和底壁喷射清洗液的出口孔（oc“）的下游端， 振荡腔室，用于使所述清洗液体射流在摆动腔室的侧壁之间有节奏地来回扫动。 振荡腔室的顶壁和底壁首先在下游方向上分开预定距离，然后通过所述出口孔朝向彼此转换。 这使得可以通过改变流体插件而不改变壳体来针对不同的车辆和应用调整偏转角度。

公开(公告)号：EP0763178A1

公开(公告)日：1997-03-19

申请号：EP95922969.0

申请日：1995-06-14

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： STOUFFER, Ronald, D.

IPC: F23C15 ,  F23C99 ,  F23D14

CPC classification number: F23D14/70 ,  F23C2203/20 ,  F23D14/28 ,  F23D14/38 ,  F23D14/48 ,  F23D2900/14482

Abstract: A low NOx gas burner for heating objects having a supply of gas under pressure (30) which is to be mixed to achieve a combustible mixture, gas flow line (32) connecting to said burner to said supply, a burner means (34) for mixing air with said fluid fuel to achieve said combustible mixture, characterized by said burner means includes one or more jet forming means for issuing one or more jets of said gas having a given cross-sectional area and sweeping said one or more jets of gas in ambient air downstream of said burner means to mix air with said gas and achieve said combustible mixture a distance (D) spaced from any physical structure of said burner means whereby a flame front (FF) of burning combustible mixture has a broad shape and is spaced a predetermined distance from said burner.

公开(公告)号：EP0299977B1

公开(公告)日：1992-11-25

申请号：EP87903037.7

申请日：1987-04-07

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： STOUFFER, Ronald, Denton ,  SHARKITT, Patrick, T.

IPC: B60S1/54

CPC classification number: B60H1/3414 ,  B05B1/08 ,  B60S1/54

Abstract: A fluidic oscillator (20) is relatively short in length (under about 2.5 W where ''W'' is the width of the power nozzle) and has a leaky splitter (22) located proximate the center of the outlet flare (21) so as to divide the outlet into essentially two alternating slug flows. The floor (FW) and/or ceiling (CW) of the oscillator diverge between about six degrees and ten degrees to allow the jet steam to expand and thereby avoid creating a back pressure to control ports (CP1 and CP2). When used as a windshield defrost/defog nozzle, vanes (29L and 29R) forming part of the leaky splitter are laterally shifted so that the largest opening is on the drive side and the smaller opening is on the passenger side so as to direct more defrost energy towards the drivers's side.

公开(公告)号：EP0135588B1

公开(公告)日：1991-05-08

申请号：EP84901463.4

申请日：1984-02-28

Applicant: BOWLES FLUIDICS CORPORATION

Inventor： STOUFFER, Ronald, Denton

IPC: F15C1/04

CPC classification number: F15C1/08 ,  F02M7/106 ,  Y10T137/0753 ,  Y10T137/218 ,  Y10T137/2224 ,  Y10T137/2234

Abstract: Fluidic transducers of electrical signals from an electronic computer to accurately switch flow of a liquid to a utilization device. A liquid filled hollow channel (166 and 166') is accelerated along the flow axis thereof to produce a fluid control signal for a bistable fluidic switch element (112) with a cross-over type interaction channel (42) and a common outlet (45) to a pair of output passageways (147 and 148). In a preferred embodiment, electrical signals from an electronic computer (220) are supplied to a coil (170) centered by a spring (190 and 191) in a magnetic field, first in one direction of current flow and then in the opposite direction, to introduce bidirectional movement of the coil (170) and the hollow channel means (166 and 166') coupled thereto. The signals are preferably frequency modulated (205) (but may be pulse width modulated).

Abstract translation: 本发明涉及来自电子计算机的电信号的流体传感器，用于精确地计量液体到利用装置的流量。 液体填充的中空通道装置沿着其流动轴线被加速以产生用于双稳态流体开关元件的流体控制信号，该双稳态流体开关元件具有通向公共出口和一对输出通道的加压交叉型相互作用区域。 在优选实施例中，来自电子计算机的电信号被提供给以磁场为中心的线圈，首先在电流的一个方向上，然后在相反的方向上引入线圈和中空通道的双向运动 耦合到其上的装置。 信号优选是频率调制的（但可以是脉宽调制的）。