公开(公告)号：WO1980002262A1

公开(公告)日：1980-10-30

申请号：PCT/US1980000368

申请日：1980-04-09

Applicant: BOWLES FLUIDICS CORP ,  STOUFFER R

Inventor： BOWLES FLUIDICS CORP

IPC: B60H01/00

CPC classification number: F24F13/08 ,  B05B1/083 ,  B60H1/345 ,  B60S1/54

Abstract: In an automobile air flow system, air is forced through an air outlet element or nozzle (13, 21, 24) in a sweeping air stream pattern by an oscillating reed or vane member (42) supported solely at the downstream end (43) for air initiated oscillatory movement in the flow path of the air from the source; a weight (41) is on the free, upstream end of the vane and is of a size such that the rate of oscillation is determined by the spring constant of a spring in the vane member and the weight. The oscillating vane (42) is proportioned with respect to the cross-sectional size of the outlet such that at any extreme of its oscillatory movement it does not physically contact any other structural member.

Abstract translation: 在汽车空气流动系统中，通过仅在下游端（43）处支撑的摆动簧片或叶片构件（42），将空气以清扫气流模式强制通过空气出口元件或喷嘴（13,21,24），用于 在来自源的空气的流动路径中空气开始的振荡运动; 重量（41）位于叶片的自由上游端，并且具有使得振动速率由叶片构件中的弹簧的弹簧常数和重量确定的尺寸。 摆动叶片（42）相对于出口的横截面尺寸成比例，使得在其振荡运动的任何极端处，其不与任何其它结构构件物理接触。

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

CPC classification number: F15C1/22 ,  B05B1/08 ,  B60S1/481 ,  B60S1/52

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.

公开(公告)号：WO1982002076A1

公开(公告)日：1982-06-24

申请号：PCT/US1981001632

申请日：1981-12-08

Applicant: BOWLES FLUIDICS CORP

Inventor： BOWLES FLUIDICS CORP ,  STOUFFER RONALD D ,  MORRIS JOSEPH W

IPC: F15C03/00

CPC classification number: B60H1/00678 ,  B60S1/54 ,  F15C7/00 ,  F24F11/89 ,  Y10T137/2202 ,  Y10T137/2256 ,  Y10T137/87812

Abstract: A fluid flow control element is constituted by a fluidic amplifier having an interaction region shaped to provide side walls leading to a pair of fluid flow outlets. The fluid flow inlet for the fluidic amplifier has positioned adjacent thereto at least one control fluid passageway, and the flow of fluid to the outlet passages is controlled by at least one pivoted valve or flap element pivoted between two positions for controlling flow fluid from the fluid inlet to a selected one of a pair of fluid flow passageways or outlets. In the preferred embodiment the fluid flow inlet and outlet and the interaction chamber are such that the fluid pressure in the chamber is always above any pressure in the load passageways and fluid from the fluid flow inlet flows out from the chamber through the control passage. The pivoted valve or flap element, in the preferred embodiment is flat so that it is balanced relative to gravity as well as aerodynamically, so that it will not change position due to back pressures as when outlet passages or receivers are partially or completely blocked and does not cause any torque on the valve element about said pivot and hence will remain in the control position despite severe back loading. The invention is described in relation to a low pressure system, such as automobile air flow systems wherein a number of the unique aspects of the invention are utilized.

公开(公告)号：WO1980000927A1

公开(公告)日：1980-05-15

申请号：PCT/US1979000960

申请日：1979-11-08

Applicant: BOWLES FLUIDICS CORP

Inventor： BOWLES FLUIDICS CORP ,  BRAY H

IPC: B05B01/08

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

Abstract: Liquid fan spray system for cyclically deflecting a liquid jet between extreme positions defined by a pair of end walls (31, 32) is assured of cold weather operation by expanding the liquid power jet. In the preferred embodiment, one boundary wall (40) of the oscillator is tapered about5o from the power nozzle (21) to the outlet throat (30), and the outlet or throat has the substantially same cross-sectional area maintained for a given oscillatory by closing down the lateral extremities of the outlet throat. This assures cold weather starting when the liquid has increased surface tension and viscosity while at the same time maintaining essentially the same fan angle of the cyclically deflected power jet. The invention is particularly useful in providing all weather oscillation in windshield washer systems for automobiles.

公开(公告)号：WO1982004227A1

公开(公告)日：1982-12-09

申请号：PCT/US1982000715

申请日：1982-05-25

Applicant: BOWLES FLUIDICS CORP

Inventor： BOWLES FLUIDICS CORP ,  MORRIS JOSEPH WOLF ,  MELBOURNE THOMAS ALAN

IPC: B60H01/14

CPC classification number: B60H1/345 ,  B60S1/54 ,  F24F13/08

Abstract: Improvements in oscillating reeds particularly for use in generating a sweeping or oscillating air flow pattern. The oscillating reeds of this invention are constituted by a plurality of spaced apart resilient reed elements (12-1, 12-2 and 12-3) which, preferably, are made from graphite fibers bonded together by an epoxy resin matrix reinforced by a scrim of fiber glass. To minimize the effect of torsion and/or forces which can cause the reed elements to buckle and hence create noise, a plurality of undulations (30) are formed in the graphite strip. Thus, the oscillating reed (10) according to the present invention offers the following four major advantages, (1) reduction in noise from buckling, (2) amplitude modulation, i.e. oscillation amplitude insensitivity to wide ranges of flow rates, (3) easier starting of oscillation, and (4) improved fatigue strength.

Abstract translation: 振荡簧片的改进，特别是用于产生清扫或振荡空气流动模式。 本发明的摆动簧片由多个间隔开的弹性簧片元件（12-1,12-2和12-3）构成，弹簧簧片元件（12-1,12-2和12-3）优选由石墨纤维制成，该石墨纤维由被稀松布增强的环氧树脂基体 的玻璃纤维。 为了最小化扭矩和/或力的影响，其可以导致簧片元件弯曲并因此产生噪音，在石墨条中形成多个起伏（30）。 因此，根据本发明的振荡簧片（10）具有以下四个主要优点：（1）降低压缩噪声，（2）振幅调制，即振荡幅度不敏感性到宽范围的流量，（3）更容易 振荡开始，（4）提高疲劳强度。

公开(公告)号：WO1981001966A1

公开(公告)日：1981-07-23

申请号：PCT/US1981000047

申请日：1981-01-13

Applicant: BOWLES FLUIDICS CORP

Inventor： BOWLES FLUIDICS CORP ,  STOUFFER R

IPC: B05B01/08

CPC classification number: F15C1/22 ,  B05B1/08

Abstract: The liquid spray device includes an oscillator for producing a fan spray with liquid droplets of uniform size. The oscillator is constituted by a power nozzle (15), a pair of side walls (20, 21) forming a pair of vortex spaces (30, 31) offset from the power nozzle, a pair of inwardly extending protuberances or deflectors (20B, 21B) downstream of which are a pair of inlets (181, 191) to passages (18, 19) leading to exits (16, 17) adjacent the power nozzle, and an outlet throat or aperture (24) having a pair of short wall surfaces (26L, 26R) defining an exit throat of any value selected from about 30` to about 160` so that the fan angle can be selected to be from about 30` to 160`. This structure results in an oscillator which has a relatively low threshold of pressure at which oscillations are initiated and, most importantly, the liquid is issued in a much more uniform fan pattern that heretofore possible. In a preferred embodiment the liquid is a windshield washer fluid and the oscillator is incorporated in a nozzle for an automobile windshield washer assembly for issuing a fan spray of washer fluid onto the windshield.

Abstract translation: 液体喷射装置包括用于产生具有均匀尺寸的液滴的风扇喷雾的振荡器。 振荡器由动力喷嘴（15），形成从动力喷嘴偏移的一对涡流空间（30,31）的一对侧壁（20,21）构成，一对向内延伸的突起或偏转器（20B， 21B），其下游是与通向与所述动力喷嘴相邻的出口（16,17）的通道（18,19）的一对入口（181,191）以及具有一对短壁的出口喉或孔（24） 表面（26L，26R）限定了从大约30°至大约160°的任何值的出口喉，使得风扇角度可以选择为大约30°至160°。 这种结构导致振荡器具有相对较低的起始振荡阈值，并且最重要的是，液体以更加均匀的风扇模式发出，这是迄今为止可能的。 在优选实施例中，液体是挡风玻璃清洗器流体，并且振荡器被并入用于汽车挡风玻璃清洗器组件的喷嘴中，用于将清洗液的风扇喷雾发射到挡风玻璃上。

公开(公告)号：WO1979000236A1

公开(公告)日：1979-05-03

申请号：PCT/US1978000121

申请日：1978-10-25

Applicant: BOWLES FLUIDICS CORP

Inventor： BOWLES FLUIDICS CORP ,  STOUFFER R

IPC: B05B01/08

CPC classification number: B05B1/08 ,  F15C1/22 ,  G10K5/02 ,  Y10T137/2104 ,  Y10T137/2185

Abstract: A fluid dispersal device (10) utilizes the Karman Vortex street phenomenon to cyclically oscillate a fluid stream before issuing the stream in a desired flow pattern. A chamber (13) includes an inlet (11) and outlet (12) with an obstacle or island (14) 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.