Nozzle and fluidic circuit adapted for use with cold fluids, viscous fluids or fluids under light pressure
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0467270
(2009-05-16)
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등록번호 |
US-8702020
(2014-04-22)
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발명자
/ 주소 |
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출원인 / 주소 |
- Bowles Fluidics Corporation
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대리인 / 주소 |
J.A. McKinney & Assoc., LLC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
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A fluid spraying or nozzle system adapted for use with cold fluids, viscous fluids or fluids under light pressure includes a fluidic oscillator having a power nozzle and an oscillation chamber coupled to the power nozzle for issuing a jet of fluid into the oscillation chamber and an outlet aperture
A fluid spraying or nozzle system adapted for use with cold fluids, viscous fluids or fluids under light pressure includes a fluidic oscillator having a power nozzle and an oscillation chamber coupled to the power nozzle for issuing a jet of fluid into the oscillation chamber and an outlet aperture spraying a jet of fluid into ambient space. The oscillator's walls define an oscillation inducing interaction region causing the jet of fluid to rhythmically sweep back and forth between the sidewalls in the oscillation chamber. The oscillation inducing interaction region defines an outlet throat width which is adapted to work with the power nozzle's width and an a bell-shaped feed that spreads the fluid jet as it leaves the power nozzle, so that the interaction region and feedback channels are quickly filled with fluid at a low pressure and the fluidic oscillator is activated to generate a desired fan pattern of fluid spray.
대표청구항
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1. A nozzle system adapted for use with cold fluids, viscous fluids or fluids under light pressure comprising: a source of fluid under pressure,a fluidic oscillator having an inlet in fluid communication with said source and including a power nozzle,said oscillator further including an oscillation c
1. A nozzle system adapted for use with cold fluids, viscous fluids or fluids under light pressure comprising: a source of fluid under pressure,a fluidic oscillator having an inlet in fluid communication with said source and including a power nozzle,said oscillator further including an oscillation chamber having an upstream end with an inlet coupled to said power nozzle for issuing a jet of fluid into said oscillation chamber and a downstream end having an outlet aperture for issuing a jet of fluid into ambient space;said oscillator further including and opposing first and second side walls which intersect opposing top and bottom walls to define an oscillation inducing interaction region in said oscillation chamber for causing said jet of fluid to rhythmically sweep back and forth between said sidewalls in said oscillation chamber;wherein said oscillation inducing interaction region defines a throat width and a power nozzle width;wherein said upstream end comprises a bell-shaped feed that promotes the spreading of the jet as it leaves the power nozzle;wherein the interaction region and feedback channels are quickly filled with fluid from said source at a low pressure and the fluidic oscillator is activated;wherein said oscillation chamber's bottom wall terminates at a leading edge and includes a taper beginning from said leading edge, proximate said inlet;wherein the ratio of interaction region is configured such that said throat width is less than said power nozzle width;wherein a plurality of short posts project inwardly in the feed area to enhance the jet expansion from the power nozzle and to provide a filtering element; andwherein said plurality of short posts comprises a first short post, a second short post and a third short post. 2. A fluid spraying system adapted to generate an oscillating spray fan pattern for use with cold fluids, viscous fluids or fluids under light pressure comprising: a source of fluid under light pressure,a fluidic oscillator having an inlet in fluid communication with said source and including a power nozzle,said oscillator further including an oscillation chamber having an upstream end with an inlet coupled to said power nozzle for issuing a jet of fluid into said oscillation chamber and a downstream end having an outlet aperture for issuing a jet of fluid into ambient space;said oscillator further including opposing first and second side walls which intersect opposing top and bottom walls to define an oscillation inducing interaction region in said oscillation chamber for causing said jet of fluid to rhythmically sweep back and forth between said sidewalls in said oscillation chamber;wherein said oscillation inducing interaction region defines a throat width and a power nozzle width;wherein said upstream end comprises a bell-shaped feed that promotes the spreading of the jet as it leaves the power nozzle;wherein the interaction region and feedback channels are quickly filled with fluid from said source at a low pressure and the fluidic oscillator is activated;wherein said oscillation chamber's bottom wall terminates at a leading edge and includes a taper beginning from said leading edge, proximate said inlet;wherein the ratio of interaction region is configured such that said throat width is less than said power nozzle width; andwherein a plurality of short posts project inwardly in the feed area to enhance the jet expansion from the power nozzle and to provide a filtering element. 3. The fluid spraying system of claim 2, wherein the oscillator is adapted to provide consistent operation with light squeeze pressures when used with a hand squeeze bottle, while also providing with enhanced cold performance. 4. The fluid spraying system of claim 2 wherein, the oscillator is adapted to provide consistent operation with light pressures in the range of 0.5 to 0.9 psi. 5. The fluid spraying system of claim 4 wherein the oscillator is adapted to provide consistent operation with light squeeze pressures of 0.5 psi when used with a hand squeeze bottle, while also providing with enhanced cold performance. 6. The fluid spraying system of claim 2 wherein the oscillator is adapted to provide consistent operation when said fluid comprises a washing solution formulated for use on automotive windshields. 7. The fluid spraying system of claim 6 wherein the oscillator is adapted to provide consistent operation when said washing solution comprises a mixture of an antifreeze agent and water. 8. The fluid spraying system of claim 7 wherein the oscillator is adapted to provide consistent operation when said washing solution comprises a mixture of substantially equal parts of ethanol and water. 9. A nozzle system adapted for use with cold fluids, viscous fluids or fluids under light pressure comprising: a source of fluid under pressure,a fluidic oscillator having an inlet in fluid communication with said source and including a power nozzle,said oscillator further including an oscillation chamber having an upstream end with an inlet coupled to said power nozzle for issuing a jet of fluid into said oscillation chamber and a downstream end having an outlet aperture for issuing a jet of fluid into ambient space;said oscillator further including and opposing first and second side walls which intersect opposing top and bottom walls to define an oscillation inducing interaction region in said oscillation chamber for causing said jet of fluid to rhythmically sweep back and forth between said sidewalls in said oscillation chamber;wherein said oscillation inducing interaction region defines a throat width and a power nozzle width;wherein said upstream end comprises a bell-shaped feed that promotes the spreading of the jet as it leaves the power nozzle;wherein the interaction region and feedback channels are quickly filled with fluid from said source at a low pressure and the fluidic oscillator is activated;wherein said oscillation chamber's bottom wall terminates at a leading edge and includes a taper beginning from said leading edge, proximate said inletwherein the ratio of interaction region is configured such that said throat width is less than said power nozzle width, andwherein a plurality of short posts project inwardly in the feed area to enhance the jet expansion from the power nozzle and to provide a filtering element. 10. The nozzle system of claim 9, wherein the nozzle is adapted for use as a vehicle washer nozzle with enhanced cold performance. 11. The fluid spraying system of claim 10 wherein the oscillator is adapted to provide consistent operation when said washing solution comprises a mixture of an antifreeze agent and water. 12. The nozzle system of claim 9, wherein said taper is in the range of 3-8 degrees, and whereby the fluidic oscillator defines a diverging channel and promotes expansion of the jet along the side; and whereby the jet can expand in all directions leading to quicker diffusion in the interaction region and formation of vortices, which activate the fluidic. 13. The nozzle system of claim 9, wherein the throat width, is approximately 0.88× said power nozzle width. 14. The nozzle system of claim 9, wherein the nozzle is adapted to provide consistent operation with light squeeze pressures when used with a hand squeeze bottle, while also providing with enhanced cold performance. 15. The nozzle system of claim 9, wherein, the nozzle is adapted to provide consistent operation with light squeeze pressures in the range of 0.5 to 0.9 psi. 16. The nozzle system of claim 15, wherein the nozzle is adapted to provide consistent operation with light squeeze pressures of 0.5 psi when used with a hand squeeze bottle, while also providing with enhanced cold performance.
이 특허에 인용된 특허 (5)
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Bray ; Jr. Harry C. (Laurel MD), Cold weather fluidic fan spray devices and method.
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Bray ; Jr. Harry C. (Laurel MD), Cold weather fluidic windshield washer method.
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Bauer Peter (13921 Esworthy Rd. Germantown MD 20767), Fluidic oscillator and spray-forming output chamber.
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Stouffer Ronald D. (Silver Spring MD), Liquid oscillator device.
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Raghu Surya ; Stouffer Ronald D., Low pressure, full coverage fluidic spray device.
이 특허를 인용한 특허 (1)
-
Rice, Wesly Mason, Nozzles and systems for cleaning vehicle sensors.
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