USRE38013E1 - Liquid spray systems - Google Patents
Liquid spray systems Download PDFInfo
- Publication number
- USRE38013E1 USRE38013E1 US09/566,400 US56640000A USRE38013E US RE38013 E1 USRE38013 E1 US RE38013E1 US 56640000 A US56640000 A US 56640000A US RE38013 E USRE38013 E US RE38013E
- Authority
- US
- United States
- Prior art keywords
- jet
- oscillation chamber
- fluidic
- washer
- oscillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
- B60S1/48—Liquid supply therefor
- B60S1/52—Arrangement of nozzles; Liquid spreading means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/08—Boundary-layer devices, e.g. wall-attachment amplifiers coanda effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/22—Oscillators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
- Y10T137/2229—Device including passages having V over T configuration
- Y10T137/2234—And feedback passage[s] or path[s]
Definitions
- the present invention relates to fluidic oscillators for use in vehicle washer systems and more particularly to a fluidic oscillator for vehicle windshield washer systems in which a housing, which can be commonly used on different vehicles, incorporates a fluidic oscillator element, hereinafter termed a “fluidic insert”, which carries a physical silhouette or pattern of a fluidic oscillator and is adapted to create different deflection angles.
- a fluidic oscillator element hereinafter termed a “fluidic insert”
- deflection angle means the angle that the jet of wash liquid makes as it exits the outlet in a plane orthogonal to the plane of the silhouette
- fan angle is the angle made by the jet sweeping back and forth between the boundaries of the outlet in the plane of the silhouette.
- This type of fluidic oscillator has a power nozzle PN issuing a jet of windshield washer liquid JW into an oscillation chamber OC towards an outlet OL which issues the jet of wash liquid into ambient where it is oscillated in a fashion so as to cause it to rhythmically be swept back and forth so as to cause the liquid jet to break up in droplets of predetermined size configuration or range so as to impinge on the windshield at a predetermined position under various driving conditions as disclosed in U.S. Pat. No. 4,157,161. In the Bray, Jr.
- the Coanda effect wall attachment or lock-on cause a dwell at the ends of the sweep which tends to make the spray heavier at the ends of the sweep than in the middle.
- the configuration of the silhouette is such as to cause the liquid oscillator issue a swept set fan spray in which the liquid droplets were relatively uniform throughout the fan spray and the uniform droplets provide a better cleaning action.
- a fluidic oscillator of the type disclosed in the aforementioned Stouffer U.S. Pat. No. 4,508,267 incorporated a step or bump B at the outlet OL of the fluidic circuit to create up to about a 6° deflection angle oscillator.
- the step appears to deteriorate fluidic functions and create adverse side effects such as:
- the deflection angles of the fluidic washer nozzles can be adjusted by using the taper at the floor of the fluidic insert as disclosed in the aforementioned Bray, Jr. U.S. Pat. No. 4,463,904. This eliminates the impact between the fluid and the step. Therefore, the spray is usually not as messy, and the wave is usually not degraded until the taper reaches about 10° to 12° when the flow begins to separate from the floor of the insert.
- the deflection angles are not as sensitive to the taper as it is to the step. However, with the use of a large taper, the spray becomes much thicker, and it makes the reading of the deflection angle very difficult and inconsistent because it is hard to find the center of a thick spray.
- the problem discussed above is solved by the use of a reverse taper at the outlet of the fluidic insert to adjust the deflection angles of the fluidic wash nozzle.
- This reverse type allows one housing to be used for several different types of vehicles which have different requirements for deflection angles. It allows the creating of different deflection angles in the fluidic insert per se rather than designing a housing and tools for the different deflection angles desired.
- the windshield washer element has a housing with a rectangular chamber having formed therein a silhouette or physical pattern of a fluidic oscillator which may be of the type disclosed in the above-referenced patents.
- the fluidic oscillator silhouette has an oscillation chamber having an upstream end coupled to the power nozzle for issuing a jet of wash liquid into the oscillation chamber and a downstream end having an outlet aperture perforation for issuing wash liquid to ambient.
- the oscillation chamber includes means for causing the jet of wash fluid to rhythmically sweep back and forth between the side walls and the oscillation chamber and issue in a sweeping rhythmic fashion and through the outlet.
- the top and bottom walls of the oscillation chamber diverge for a predetermined distance in a downstream direction and then converge towards each other through the outlet aperture.
- the degree of the taper can be changed to accommodate the deflection angles required by different vehicles, to thereby reduce the cost of housing design and the tools.
- the invention retains the droplet size without causing a detrimental increase in smaller droplets which are more adversely affected by wind and air flow effects over the vehicle.
- One of the basic objectives of the fluidic windshield washer nozzle is to have a fan spray which has a designed or predetermined droplet distribution through the fan and the present invention retains desired droplet distribution while providing the uniform droplet distribution of Stouffer U.S. Pat. No. 4,508,267.
- FIG. 1A is a diagrammatic sketch of an automobile windshield washer system to which the invention has been applied;
- FIG. 1B is a diagrammatic sketch of an automobile windshield washer system wherein there is a dual fan, one for the driver side and one for the passenger side;
- FIG. 1C is a diagrammatic illustration of a “wet arm” windshield washer system wherein the nozzles are mounted on the arms of the wiper blades;
- FIG. 2A is a top plan view of a silhouette of a power fluidic oscillator as disclosed in Bray, Jr. U.S. Pat. Nos. 4,463,904 and 4,645,126; and FIG. 2B is a sectional view of the fluidic oscillator shown in FIG. 2A as inserted in a rectangular housing;
- FIG. 3A is a top silhouette of a fluidic oscillator as disclosed in Stouffer U.S. Pat. No. 4,508,267;
- FIG. 3B is a section view through a centerline thereof
- FIG. 4A is a silhouette of a fluidic oscillator element having the bump in the nozzle, outlet aperture
- FIG. 4B is a sectional view thereof through a power nozzle and outlet aperture
- FIG. 5A is a top plan view of a silhouette of a fluidic oscillator incorporating the present invention.
- FIG. 5B is a sectional view through lines BB of FIG. 5 A.
- FIGS. 1A, 1 B and 1 C depict vehicle windshields with different techniques utilized in the art for mounting the windshield washer nozzles for applying a fan spray of washer fluid droplets to the windshield glass surface to be cleaned. It will be appreciated that while the invention has been illustrated as applied to the windshield of the vehicle, it can be applied to the tailgate window glass or to glass headlamp washers, the principal use being for windshield glass.
- vehicle windshield 10 is provided with a single fan spray device 11 which issues a fan spray 12 of proper droplet size and sweep frequency. Wash liquid for spray 12 is provided by pump 13 from reservoir 14 which would conventionally be under the hood of the vehicle.
- Windshield wash liquid 16 is contain ed in reservoir 14 .
- FIG. 1 depict vehicle windshields with different techniques utilized in the art for mounting the windshield washer nozzles for applying a fan spray of washer fluid droplets to the windshield glass surface to be cleaned.
- FIGS. 1A, 1 B and 1 C depict vehicle windshields with different techniques utilized in the art for mounting the windshield washer nozzles for applying a fan spray
- a pair of fluidic oscillator nozzles 11 R and 11 L, one for the passenger's side and one for the driver's side of the vehicle are provided for issuing fan sprays 12 R and 12 L from the windshield for the respective driver and passenger sides of the vehicle.
- a fluid oscillator of the type shown in FIG. 2 which is heavy ended, and this is due principally to Coanda wall attachment effects, so the sides of the spray are heavier or more concentrated in wash fluid droplets than the center of the spray so as to provide equal amounts of wash fluid for distribution on the driver and the passenger sides.
- FIG. 1C illustrates a “wet arm” embodiment wherein the nozzles are mounted on the wiper arm while FIG. 1C illustrates the spray as being to the left of the wiper arm having its position shown, it will be appreciated that various combinations can be utilized when spraying either from the left or the right of the wiper arm depending on design considerations. Either type of fluidic oscillator may be used in this embodiment.
- a system of vortices is established in the oscillation chamber of the respective oscillators.
- Each of the oscillators causes a jet of wash fluid to be issued through the outlet to ambient, which jet is oscillated or swept back and forth in a fan angle ⁇ and which varies from about 30° to about 160° as set forth in Stouffer U.S. Pat. No. 4,508,267.
- the upper (roof) or lower walls or both of the fluidic oscillator have a taper incorporated therein so that the walls diverge from each other in the direction of the outlet OL so as to expand the power jet in cold weather, a typical taper or angle being about 5°.
- the taper is within a range of 2° and about 10° with 5° being found to be most acceptable since the taper angle is a function of the distance between a power nozzle and the fluid outlet.
- a step or bump 30 is provided at the outlet OL of the fluidic circuit to create up to about 6° deflection angle.
- a step deteriorates fluidic function and creates the following undesirable side affects:
- the deflection angles of the fluidic oscillator can be adjusted by using the taper as shown in the Bray, Jr. and Stouffer patents. This eliminates the impact between the fluid and the step, and therefore the spray is not as messy and the wave is usually not degraded until the taper reaches about 10°14 12° when the flow begins to separate from the floor of the insert.
- the deflection angle is not as sensitive to the taper as the step. However, with the use of a larger taper the spray comes much thicker making it difficult and inconsistent to find the center of a thick spray.
- the fluidic oscillator of the present invention solves this problem by use of a reverse taper at the outlet of the fluidic insert to adjust the deflection angles of the fluidic washer nozzles. These are shown in FIGS. 5A and 5B.
- the most critical parameter of the reverse taper insert is its deflection angle, although other performance factors (such as fan angle, flow rate, spray thickness, wave pattern, fluid droplet size and spray cleanliness) are important as well.
- the reverse taper RT at angle ⁇ the thickness of the spray can be reduced which makes the deflection angles more consistent and reliable and as a result, of the thinner spray, fluid is more concentrated in the middle which aids in the dynamic performance of the fluidic windshield washer nozzle.
- the reverse taper does not create as much destruction of the spray as the step at the outlet of the insert. This makes the spray cleaner and not as degraded as in the case of the step at the outlet (FIGS. 4 A and 4 B).
- the droplet sizes are also larger which is good for high speed testing since the high speed wind affects on small droplets is significant.
- the throat depth and throat area are unchanged by adjusting the taper after the reverse taper is added to the insert. Therefore, the fan angle does not have to be reduced by the addition of reverse taper.
- the diverging taper from the power nozzle PW to the point where the converging or reverse taper begin is about 5° and the reverse taper angles ⁇ is about 3°.
- the deflection angle DA can be adjusted without making any changes in the housing.
- the length Lr of the reverse taper can also be adjusted.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Water Supply & Treatment (AREA)
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Bolts, Nuts, And Washers (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/566,400 USRE38013E1 (en) | 1996-04-19 | 2000-05-04 | Liquid spray systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/636,765 US5749525A (en) | 1996-04-19 | 1996-04-19 | Fluidic washer systems for vehicles |
US09/566,400 USRE38013E1 (en) | 1996-04-19 | 2000-05-04 | Liquid spray systems |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/636,765 Reissue US5749525A (en) | 1996-04-19 | 1996-04-19 | Fluidic washer systems for vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE38013E1 true USRE38013E1 (en) | 2003-03-04 |
Family
ID=24553238
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/636,765 Ceased US5749525A (en) | 1996-04-19 | 1996-04-19 | Fluidic washer systems for vehicles |
US09/566,400 Expired - Lifetime USRE38013E1 (en) | 1996-04-19 | 2000-05-04 | Liquid spray systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/636,765 Ceased US5749525A (en) | 1996-04-19 | 1996-04-19 | Fluidic washer systems for vehicles |
Country Status (9)
Country | Link |
---|---|
US (2) | US5749525A (en) |
EP (1) | EP0894026B1 (en) |
JP (1) | JP3930910B2 (en) |
AT (1) | ATE228890T1 (en) |
AU (1) | AU713623B2 (en) |
BR (1) | BR9708749A (en) |
CA (1) | CA2250171A1 (en) |
DE (1) | DE69717615T2 (en) |
WO (1) | WO1997039830A1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050214147A1 (en) * | 2004-03-25 | 2005-09-29 | Schultz Roger L | Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus |
US6976507B1 (en) | 2005-02-08 | 2005-12-20 | Halliburton Energy Services, Inc. | Apparatus for creating pulsating fluid flow |
US20060108442A1 (en) * | 2003-09-29 | 2006-05-25 | Bowles Fluidics Corporation | Enclosures for fluidic oscillators |
US20060255167A1 (en) * | 2005-05-13 | 2006-11-16 | Vogel John D | Power sprayer |
US20070194148A1 (en) * | 2006-02-06 | 2007-08-23 | Rosko Michael S | Power sprayer |
US20070257133A1 (en) * | 2004-09-27 | 2007-11-08 | Jens Bettenhausen | Nozzle Device For Cleaning A Window |
US20070295840A1 (en) * | 2003-09-29 | 2007-12-27 | Bowles Fluidics Corporation | Fluidic oscillators and enclosures with split throats |
EP1884426A3 (en) * | 2006-08-02 | 2008-11-19 | Hella KG Hueck & Co. | Cleaning facility for windscreens |
US20090236449A1 (en) * | 2005-10-06 | 2009-09-24 | Bowles Fluidics Corporation | High efficiency, multiple throat fluidic oscillator |
US8205812B2 (en) | 2005-10-06 | 2012-06-26 | Bowles Fluidics Corporation | Enclosures for multiple fluidic oscillators |
US9943863B2 (en) | 2015-04-29 | 2018-04-17 | Delta Faucet Company | Showerhead with scanner nozzles |
US9992388B2 (en) | 2011-03-10 | 2018-06-05 | Dlhbowles, Inc. | Integrated automotive system, pop up nozzle assembly and remote control method for cleaning a wide angle image sensors exterior surface |
US10328906B2 (en) | 2014-04-11 | 2019-06-25 | Dlhbowles, Inc. | Integrated automotive system, compact, low-profile nozzle assembly and compact fluidic circuit for cleaning a wide-angle image sensor's exterior surface |
US10350647B2 (en) | 2011-03-10 | 2019-07-16 | Dlhbowles, Inc. | Integrated automotive system, nozzle assembly and remote control method for cleaning an image sensor's exterior or objective lens surface |
US10525937B2 (en) | 2014-04-16 | 2020-01-07 | Dlhbowles, Inc. | Integrated multi image sensor and lens washing nozzle assembly and method for simultaneously cleaning a plurality of image sensors |
US10549290B2 (en) | 2016-09-13 | 2020-02-04 | Spectrum Brands, Inc. | Swirl pot shower head engine |
US11267003B2 (en) | 2005-05-13 | 2022-03-08 | Delta Faucet Company | Power sprayer |
US11305297B2 (en) | 2017-06-05 | 2022-04-19 | Dlhbowles, Inc. | Compact low flow rate fluidic nozzle for spraying and cleaning applications having a reverse mushroom insert geometry |
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US6467701B2 (en) * | 1997-09-26 | 2002-10-22 | Mannesmann Vdo Ag | Shield cleaning system |
US5906317A (en) * | 1997-11-25 | 1999-05-25 | Bowles Fluidics Corporation | Method and apparatus for improving improved fluidic oscillator and method for windshield washers |
DE19820897C2 (en) * | 1998-05-09 | 2002-02-28 | Mannesmann Vdo Ag | cleaning device |
US6978951B1 (en) * | 1998-10-28 | 2005-12-27 | Bowles Fluidics Corporation | Reversing chamber oscillator |
US6186409B1 (en) * | 1998-12-10 | 2001-02-13 | Bowles Fluidics Corporation | Nozzles with integrated or built-in filters and method |
US6575386B1 (en) * | 2000-07-11 | 2003-06-10 | Bowles Fluidics Corporation | Spa nozzles with air entrainment |
JP2002067888A (en) * | 2000-08-30 | 2002-03-08 | Nippon Vinylon Kk | Variable jet direction nozzle and liquid jet device |
US7036749B1 (en) | 2001-07-25 | 2006-05-02 | Bowles Fluidics Corporation | Washer nozzle with integrated adjustable aim fluidic insert (chip) and method |
US7014131B2 (en) | 2002-06-20 | 2006-03-21 | Bowles Fluidics Corporation | Multiple spray devices for automotive and other applications |
CZ12485U1 (en) * | 2002-06-25 | 2002-07-24 | Hydrosystem Group, A.S. | Fluidic nozzle |
DE10234871A1 (en) * | 2002-07-31 | 2004-02-12 | Valeo Auto-Electric Wischer Und Motoren Gmbh | Nozzle for a washing system for vehicle windows and washing system |
US7302731B2 (en) * | 2002-12-11 | 2007-12-04 | Asmo Co., Ltd. | Washer equipment |
US7651036B2 (en) * | 2003-10-28 | 2010-01-26 | Bowles Fluidics Corporation | Three jet island fluidic oscillator |
US6860157B1 (en) * | 2004-01-30 | 2005-03-01 | National Tsing Hua University | Fluidic oscillator |
US20050252539A1 (en) * | 2004-05-17 | 2005-11-17 | Asmo Co., Ltd. | Vehicular washer nozzle |
US7354008B2 (en) * | 2004-09-24 | 2008-04-08 | Bowles Fluidics Corporation | Fluidic nozzle for trigger spray applications |
US7267290B2 (en) * | 2004-11-01 | 2007-09-11 | Bowles Fluidics Corporation | Cold-performance fluidic oscillator |
US8662421B2 (en) | 2005-04-07 | 2014-03-04 | Bowles Fluidics Corporation | Adjustable fluidic sprayer |
DE102005039670B4 (en) * | 2005-08-22 | 2019-11-21 | Continental Automotive Gmbh | Nozzle device for cleaning a window of a motor vehicle |
US7478764B2 (en) * | 2005-09-20 | 2009-01-20 | Bowles Fluidics Corporation | Fluidic oscillator for thick/three-dimensional spray applications |
WO2007149436A1 (en) * | 2006-06-16 | 2007-12-27 | Bowles Fluidics Corporation | Fluidic device yielding three-dimensional spray patterns |
DE102006054507B3 (en) * | 2006-11-20 | 2008-02-14 | Piller Entgrattechnik Gmbh | Multi-component nozzle producing jet of sand, air or water has nozzle entrance passing into nozzle chamber extending to inside of adjacent cover plate |
EP2094392B1 (en) | 2006-12-14 | 2012-02-01 | Tronox LLC | An improved jet for use in a jest mill micronizer |
FR2957575B1 (en) * | 2010-03-16 | 2013-04-12 | Peugeot Citroen Automobiles Sa | METHOD FOR MANUFACTURING A WASH FLUID SPRAY FOR A GLASS OF A MOTOR VEHICLE |
US20120021374A1 (en) * | 2010-07-23 | 2012-01-26 | Water Pik, Inc. | Oscillating spray tip for oral irrigator |
US20150183404A1 (en) | 2012-02-23 | 2015-07-02 | Bowles Fluidics Corporation | Adaptive, multi-mode washer system and control method |
RU2515866C2 (en) * | 2012-06-26 | 2014-05-20 | Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") | Gas-liquid injector |
CN107073489B (en) | 2014-10-15 | 2020-06-30 | 伊利诺斯工具制品有限公司 | Fluid sheet of nozzle |
US10744521B2 (en) | 2014-12-25 | 2020-08-18 | Nippon Vinylon Co., Ltd. | Washer nozzle |
JP6681016B2 (en) * | 2015-09-30 | 2020-04-15 | Toto株式会社 | Water discharge device |
DE102015222771B3 (en) * | 2015-11-18 | 2017-05-18 | Technische Universität Berlin | Fluidic component |
DE102017212961A1 (en) * | 2017-07-27 | 2019-01-31 | Fdx Fluid Dynamix Gmbh | Fluidic component |
US20200254464A1 (en) | 2019-02-07 | 2020-08-13 | Dlhbowles, Inc. | Nozzle assemblies and a method of making the same utilizing additive manufacturing |
CN111623505B (en) * | 2020-05-25 | 2022-03-15 | 太原理工大学 | Self-oscillation jet flow type mixing-increasing heat exchange air outlet device |
CN113019789B (en) * | 2021-03-19 | 2022-02-15 | 大连理工大学 | Wall-separating type feedback jet oscillator |
KR102595305B1 (en) * | 2021-11-04 | 2023-10-30 | 인하대학교 산학협력단 | Performance analysis of a fluidic oscillator with a tapered outlet |
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US3507275A (en) * | 1966-08-17 | 1970-04-21 | Robert J Walker | Mouth flushing apparatus |
US4000757A (en) * | 1975-12-04 | 1977-01-04 | The United States Of America As Represented By The Secretary Of The Navy | High gain fluid amplifier |
US4052002A (en) * | 1974-09-30 | 1977-10-04 | Bowles Fluidics Corporation | Controlled fluid dispersal techniques |
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US4645126A (en) * | 1978-11-08 | 1987-02-24 | Bowles Fluidics Corporation | Cold weather fluidic windshield washer method |
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US4721251A (en) * | 1984-07-27 | 1988-01-26 | Nippon Soken, Inc. | Fluid dispersal device |
-
1996
- 1996-04-19 US US08/636,765 patent/US5749525A/en not_active Ceased
-
1997
- 1997-04-15 AU AU26594/97A patent/AU713623B2/en not_active Ceased
- 1997-04-15 CA CA002250171A patent/CA2250171A1/en not_active Abandoned
- 1997-04-15 AT AT97918502T patent/ATE228890T1/en not_active IP Right Cessation
- 1997-04-15 JP JP53808197A patent/JP3930910B2/en not_active Expired - Lifetime
- 1997-04-15 WO PCT/US1997/005500 patent/WO1997039830A1/en active IP Right Grant
- 1997-04-15 EP EP97918502A patent/EP0894026B1/en not_active Expired - Lifetime
- 1997-04-15 BR BR9708749A patent/BR9708749A/en not_active Application Discontinuation
- 1997-04-15 DE DE69717615T patent/DE69717615T2/en not_active Expired - Lifetime
-
2000
- 2000-05-04 US US09/566,400 patent/USRE38013E1/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3507275A (en) * | 1966-08-17 | 1970-04-21 | Robert J Walker | Mouth flushing apparatus |
US4052002A (en) * | 1974-09-30 | 1977-10-04 | Bowles Fluidics Corporation | Controlled fluid dispersal techniques |
US4157161A (en) * | 1975-09-30 | 1979-06-05 | Bowles Fluidics Corporation | Windshield washer |
US4157161B1 (en) * | 1975-09-30 | 1986-04-08 | ||
US4000757A (en) * | 1975-12-04 | 1977-01-04 | The United States Of America As Represented By The Secretary Of The Navy | High gain fluid amplifier |
US4463904A (en) * | 1978-11-08 | 1984-08-07 | Bowles Fluidics Corporation | Cold weather fluidic fan spray devices and method |
US4645126A (en) * | 1978-11-08 | 1987-02-24 | Bowles Fluidics Corporation | Cold weather fluidic windshield washer method |
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US4508267A (en) * | 1980-01-14 | 1985-04-02 | Bowles Fluidics Corporation | Liquid oscillator device |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060108442A1 (en) * | 2003-09-29 | 2006-05-25 | Bowles Fluidics Corporation | Enclosures for fluidic oscillators |
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Also Published As
Publication number | Publication date |
---|---|
AU713623B2 (en) | 1999-12-09 |
EP0894026A4 (en) | 1999-03-24 |
CA2250171A1 (en) | 1997-10-30 |
JP3930910B2 (en) | 2007-06-13 |
JP2000508988A (en) | 2000-07-18 |
DE69717615T2 (en) | 2004-01-29 |
ATE228890T1 (en) | 2002-12-15 |
EP0894026B1 (en) | 2002-12-04 |
WO1997039830A1 (en) | 1997-10-30 |
BR9708749A (en) | 1999-08-03 |
US5749525A (en) | 1998-05-12 |
AU2659497A (en) | 1997-11-12 |
DE69717615D1 (en) | 2003-01-16 |
EP0894026A1 (en) | 1999-02-03 |
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