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1. 发明公开

EP1124643A1 REVERSING CHAMBER OSCILLATOR 审中-公开
标题翻译：共同作用上诉流体振荡器
公开(公告)号：EP1124643A1
公开(公告)日：2001-08-22
申请号：EP99970951.2
申请日：1999-10-28
申请人： BOWLES FLUIDICS CORPORATION
发明人： RAGHU, Surya
IPC分类号： B05B1/08
CPC分类号： B60S1/522 , B05B1/08 , B60S1/52 , F15C1/22
摘要： A reversing chamber (IC) oscillator has an oscillation chamber (IC) with a reversing wall (RW), a centrally located power nozzle (PN) for issuing a jet of liquid toward the reversing wall (RW), and a pair of liquid passages (CH1, CH2) from the reversing chamber (IC) on each side of the power nozzle (PN), respectively, for alternately issuing periodic pulses of liquid. The outlet passages (CH1, CH2) are smoothly extended to intersect at a common outlet (CO) to ambient and are dimensioned and angulated relative to each other to control the fan angle of a liquid jet which is periodically swept in the common outlet (CO) and sprayed to ambient. The pair of fluid passages (CH1, CH2) have an upstream end at the reversing chamber (IC) and a downstream end at the common outlet (CO) and each passage (CH1, CH2) has an outer wall which, with the reversing wall (RW), define an oval.

2. 发明公开

EP0941143A1 LOW PRESSURE, FULL COVERAGE FLUIDIC SPRAY DEVICE 失效
标题翻译：大面积覆盖层级别NIEDERDRUCKZERSTÄUBER
公开(公告)号：EP0941143A1
公开(公告)日：1999-09-15
申请号：EP97939693.0
申请日：1997-09-09
申请人： BOWLES FLUIDICS CORPORATION
发明人： RAGHU, Surya , STOUFFER, Ronald, D.
IPC分类号： B05B1 , F15C1
CPC分类号： F15C1/22 , B05B1/08
摘要： A two-stage liquid spray device having an outlet region with an island (41) and an exit aperture (47) and a fluidic oscillator (33) driving said outlet region. The improvement for the spray device is operable at a low pressure to achieve full-area coverage with substantially uniform droplets and wherein all of the spray droplets land on the desired work surface and do not bounce. The fluidic oscillator includes an oscillation chamber (33), a power nozzle (31) for introducing a jet of liquid from a source into the oscillation chamber. The oscillation chamber is configured to produce a pair of alternating control vortices which substantially preclude wall attachment of said jet traversing said oscillation chamber, thus avoiding a heavy endedness in the oscillatory jet. An outlet from the oscillation chamber to the outlet region, whereby the jet rhythmically sweeps in end pulses to each side of the island and forms a sheet at the exit aperture. The sheet is rhythmically waved or swept in the ambient air to form the uniform droplets. A transverse slot defines the lateral boundary of the sweeping sheet.

3. 发明授权

EP1121201B1 FEEDBACK-FREE FLUIDIC OSCILLATOR AND METHOD 有权
标题翻译：反馈游离液体振荡器和方法
公开(公告)号：EP1121201B1
公开(公告)日：2004-06-09
申请号：EP99954624.5
申请日：1999-10-15
申请人： BOWLES FLUIDICS CORPORATION
发明人： RAGHU, Surya
IPC分类号： B05B1/08
CPC分类号： B05B1/08 , F15C1/22 , Y10T137/0396 , Y10T137/2093 , Y10T137/2098 , Y10T137/2104 , Y10T137/2115 , Y10T137/2185 , Y10T137/2224 , Y10T137/2234
摘要： A fluidic oscillator includes a member having an oscillation inducting chamber (IC), at least one source of fluid (SF) under pressure, at least a pair of power nozzles (FH1, FH2) connected to the at least one source of fluid under pressure for projecting at least a pair of fluid jets into the oscillation chamber, and at least one outlet from the oscillation chamber for issuing a pulsating jet of fluid to a point of utilization or ambient. A common fluid manifold connected to said at least a pair of power nozzles. The shape of the power nozzle manifold forms one of the walls of the interaction or oscillation chamber. In some of the fluidic circuits, the length can be matched to fit existing housings. The power nozzle can have offsets which produce yaw angles in a liquid spray fan angle to the left or right depending on the direction desired. In some embodiments, the exit throat is off axis (off the central axis of the symmetry) by a small fraction to the left or right to move the leftward or rightward yaw angles in the spray. The outlet throat (BX) may be offset along the longitudinal axis by a small amount to produce a yaw angle of predetermined degree to the left or right depending on what is desired. Thus, one can construct circuits for yaw using a combination of the techniques described above which suits most applications.

4. 发明公开

EP1121201A1 FEEDBACK-FREE FLUIDIC OSCILLATOR AND METHOD 有权
标题翻译：反馈游离液体振荡器和方法
公开(公告)号：EP1121201A1
公开(公告)日：2001-08-08
申请号：EP99954624.5
申请日：1999-10-15
申请人： BOWLES FLUIDICS CORPORATION
发明人： RAGHU, Surya
IPC分类号： B05B1/08
CPC分类号： B05B1/08 , F15C1/22 , Y10T137/0396 , Y10T137/2093 , Y10T137/2098 , Y10T137/2104 , Y10T137/2115 , Y10T137/2185 , Y10T137/2224 , Y10T137/2234
摘要： A fluidic oscillator includes a member having an oscillation inducting chamber (IC), at least one source of fluid (SF) under pressure, at least a pair of power nozzles (FH1, FH2) connected to the at least one source of fluid under pressure for projecting at least a pair of fluid jets into the oscillation chamber, and at least one outlet from the oscillation chamber for issuing a pulsating jet of fluid to a point of utilization or ambient. A common fluid manifold connected to said at least a pair of power nozzles. The shape of the power nozzle manifold forms one of the walls of the interaction or oscillation chamber. In some of the fluidic circuits, the length can be matched to fit existing housings. The power nozzle can have offsets which produce yaw angles in a liquid spray fan angle to the left or right depending on the direction desired. In some embodiments, the exit throat is off axis (off the central axis of the symmetry) by a small fraction to the left or right to move the leftward or rightward yaw angles in the spray. The outlet throat (BX) may be offset along the longitudinal axis by a small amount to produce a yaw angle of predetermined degree to the left or right depending on what is desired. Thus, one can construct circuits for yaw using a combination of the techniques described above which suits most applications.

5. 发明公开

EP0944434A1 IMPROVED HIGH-SPEED WINDSHIELD WASHER NOZZLE SYSTEM 失效
标题翻译： JETS SYSTEM FOR垫圈驾驶在高速行驶时
公开(公告)号：EP0944434A1
公开(公告)日：1999-09-29
申请号：EP97952424.0
申请日：1997-12-19
申请人： BOWLES FLUIDICS CORPORATION
发明人： RAGHU, Surya
IPC分类号： B05B1 , B60S1
CPC分类号： B60S1/52
摘要： A windshield washer system wherein a nozzle is mounted on the hood (H) of a vehicle and issues a jet of washer fluid in the ambient toward the windshield (W). The nozzle has a housing (E) and a projecting surface, air deflector or tab (T) formed with or attached to the nozzle housing (E) for aerodynamically assuring that the washer fluid impinges on the windshield (W) in a predetermined area thereon at speeds above a predetermined minimum. In preferred embodiments, the projecting surface, air deflector or tab (T) projects from about 6 mm to about 12 mm above the nozzle housing (E).

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