Reversing chamber oscillator
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0427985
(1999-10-27)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Bowles Fluidics Corporation
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인용정보 |
피인용 횟수 :
3 인용 특허 :
6 |
초록
▼
A reversing chamber oscillator has an oscillation chamber with a reversing wall, a centrally located power nozzle for issuing a jet of liquid toward the reversing wall, and a pair of liquid passages from the reversing chamber on each side of the power nozzle, respectively, for alternately issuing pe
A reversing chamber oscillator has an oscillation chamber with a reversing wall, a centrally located power nozzle for issuing a jet of liquid toward the reversing wall, and a pair of liquid passages from the reversing chamber on each side of the power nozzle, respectively, for alternately issuing periodic pulses of liquid. The outlet passages are smoothly extended to intersect directly at a common outlet and are dimensioned and angulated relative to each other to control the sweep angle of a liquid jet which is periodically swept in the common outlet and issued to ambient. The pair of fluid passages have an upstream end at the reversing chamber and a downstream end at the common outlet and each passage has an outer wall which, with the reversing wall, define an oval.
대표청구항
▼
1. In a reversing chamber oscillator device having an oscillation chamber with a reversing wall, a centrally located power nozzle for issuing a first liquid jet toward said reversing wall, and a pair of liquid passages for receiving liquid from said reversing chamber, one liquid passage on each side
1. In a reversing chamber oscillator device having an oscillation chamber with a reversing wall, a centrally located power nozzle for issuing a first liquid jet toward said reversing wall, and a pair of liquid passages for receiving liquid from said reversing chamber, one liquid passage on each side of said power nozzle, respectively, for alternately issuing periodic pulses of liquid, the improvement comprising a common outlet, said liquid passages are extended and lead smoothly and in a gradually curved manner, without sharp changes in direction, to intersect directly at said common outlet so that the alternate periodic liquid pulses issuing therefrom form a second liquid jet in at said common outlet which is periodically swept in said common outlet to ambient.2. The reversing chamber oscillator device defined in claim 1 wherein each of said pair of liquid passages has an upstream end at said reversing chamber and a downstream end at said common outlet, respectively, each said liquid passage having an outer wall which, with said reversing wall, define an oval.3. The reversing chamber oscillation device defined in claim 1 wherein said pair of liquid passages are identical and first smoothly and gradually narrows to a minimum cross-sectional area and then gradually expands to a maximum cross-sectional area at said common outlet.4. A liquid spray device comprising a reversing chamber having a reversing wall, a centrally located power nozzle for issuing a first liquid jet toward said reversing wall, a pair of liquid passages for receiving discrete pulses of liquid in alternation from said reversing chamber, a common outlet, passage extensions on said liquid passages which passage extensions intersect at said common outlet, said passage extensions leading smoothly and gradually curve without sharp changes in direction to intersect at said common outlet wherein said alternate periodic pulses of liquid merge to form a second liquid jet.5. The liquid spray device defined in claim 4 wherein said second jet is swept in said common outlet to ambient and said passages are such that the mean droplet size, in an operating fluid pressure range of 5 to 30 psi remains above 1500 microns.6. A cleaning spray nozzle device comprising the spray nozzle defined in claim 5 wherein said second liquid jet has a velocity flow of liquid which reduces ricochet of the droplets from an impact surface.7. The spray nozzle device defined in claim 4 wherein said liquid is a wash liquid which breaks up into droplets as said second liquid jet is swept in said common outlet to produce droplets with a mean droplet size above 1500 microns in an operating pressure range of 5 to 30 psi.8. The spray nozzle device defined in claim 4 wherein said common outlet has a pair of sidewalls to each side thereof diverging in a downstream direction.9. A liquid spray nozzle for spraying a liquid upon a surface comprising a fluidic oscillator having an oscillation chamber with a reversing wall, a centrally located power nozzle for issuing a first liquid jet towards said reversing wall, a pair of liquid passages for receiving liquid from said reversing chamber and alternately issuing periodic pulses of liquid, a common outlet, said pair of liquid passages having extensions which intersect directly at said common outlet and set the fan angle of a second liquid jet which is formed at said common outlet by said alternately issued periodic pulses of liquid and swept in the common outlet to ambient.10. A liquid spray device defined in claim 9 wherein said liquid is a wash liquid which breaks up into droplets as said liquid jet is swept in said common outlet to ambient and said passages are such that the mean droplet size in an operating fluid pressure range of 5 to 30 psi, remains above about 1500 microns.11. The liquid spray device defined in claim 10 wherein each said liquid passage has an outer wall which, with said reversing wall, define an oval.12. The liquid spray device defined in claim 9 wherein said passage extensions extend from said reversing chamber in a direction to intersect at said common outlet, each said passage extension being gradually curved without sharp and significant changes in direction to intersect at said common outlet.
이 특허에 인용된 특허 (6)
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Bauer Peter (13921 Esworthy Rd. Germantown MD 20767), Fluidic oscillator and spray-forming output chamber.
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Bauer Peter (13921 Esworthy Rd. Germantown MD 20767), Fluidic oscillator and spray-forming output chamber.
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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., Fluidic washer systems for vehicles.
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Jewett Warren R. ; Drzewiecki Tadeusz M., Oscillating liquid jet washing system.
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Bauer Peter (13920 Esworthy Rd. Germantown MD 20874), Spray-forming output device for fluidic oscillators.
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Weitzel, Heiko; Ringler, Dirk; Droessler, Michael, Washer nozzle for a screen wash system.
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