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91. 发明申请

WO2019133831A1 AUTOMOTIVE IMAGE SENSOR SURFACE WASHING AND DRYING SYSTEM 审中-公开
公开(公告)号：WO2019133831A1
公开(公告)日：2019-07-04
申请号：PCT/US2018/067894
申请日：2018-12-28
申请人： DLHBOWLES, INC.
发明人： ZHAO, Chunling , GOPALAN, Shridhar
IPC分类号： B60S1/52 , B60S1/54 , B60S1/56 , B05B1/08 , G02B27/00
CPC分类号： B60S1/52 , B05B1/08 , B60S1/54 , B60S1/56 , G02B27/0006 , G05D1/0231 , G05D2201/0213
摘要： The present disclosure relates to an air dry nozzle assembly (512) having a housing which is aimed to direct a drying air fan (520) distally from outlet throat or orifice (546) which is defined in a distal wall (534) of an insert member (532) around which are two air entrainment ports or air intake holes or lumens (542 and 544), symmetrically located on both sides of the outlet throat or orifice. Air from the atmosphere is entrained from air entrainment ports while high velocity air or liquid flow passes through a power nozzle into the central exit throat.

92. 发明申请

WO2019084539A8 GAPPED SCANNER NOZZLE ASSEMBLY AND METHOD 审中-公开
公开(公告)号：WO2019084539A8
公开(公告)日：2019-05-02
申请号：PCT/US2018/057962
申请日：2018-10-29
申请人： DLHBOWLES, INC.
发明人： CURRIE, Timothy , BERNSTEIN, Sam , RUSSELL, Gregory
IPC分类号： B05B1/08 , B05B1/18
摘要： A fluidic scanner nozzle comprising an interaction chamber defined between an upstream end and a downstream end with a longitudinal chamber axis. The upstream end having an inlet opening for receiving and delivering pressurized fluid into said interaction chamber along said chamber axis. The downstream end having an outlet orifice for issuing a generally conical outlet spray of liquid droplets from said chamber into ambient environment and an axial gap positioned between said upstream end and said downstream end. The upstream and downstream ends may define inner cavities having a hemisphere shape. The axial gap may define a cylindrical sidewall segment aligned between an upper hemisphere shaped inner cavity and a lower hemisphere shaped inner cavity. The axial gap includes a selected axial length and an inside diameter that may be either a continuous axial gap or a stepped axial gap.

93. 发明申请

WO2018226827A1 CLOG RESISTANT IN-LINE VORTEX ELEMENT IRRIGATION EMITTER 审中-公开
公开(公告)号：WO2018226827A1
公开(公告)日：2018-12-13
申请号：PCT/US2018/036255
申请日：2018-06-06
申请人： DLHBOWLES, INC.
发明人： HASDAY, Benjamin D. , RUSSELL, Gregory A , GOPALAN, Shridhar , SOUTH, Christopher F.
IPC分类号： A01G25/02
摘要： A clog resistant in-line vortex emitter and drip irrigation assembly and method uses a double-sided circuit and a series of vortex chambers of optimized dimensions to create a pressure drop with large dimensions and good clog resistance. The vortex chamber 100 also al lows for a lower exponent than traditional circuits. This gives a pressure regulating property to the no-moving-parts circuit. The vortex emitter allows for some pressure regulation without sacrificing recyclability or requiring moving parts. The vortex circuit of the present disclosure is optimized for an emitter efficiency Ef value wherein Ef = (k/Ackt) *Amin such that k is a unitless head loss coefficient, Ackt is the area of the circuit, and Amin is the minimum cross sectional area of the circuit. A higher k per a given area with larger dimensions allows for a smaller part with a lower chance of clogging.

94. 发明申请

WO2018176061A1 BI-DIRECTIONAL FLUIDIC PCV VALVE ASSEMBLY AND SYSTEM 审中-公开
公开(公告)号：WO2018176061A1
公开(公告)日：2018-09-27
申请号：PCT/US2018/027510
申请日：2018-04-13
申请人： DLHBOWLES, INC.
发明人： GOPALAN, Shridhar , ZAMENSKI, Corey
IPC分类号： F01M13/02 , G05D7/01 , F15D1/00
CPC分类号： F01M13/023 , F15C1/16
摘要： Provided is a bi-directional PCV valve assembly, system and method. The bi-directional PCV valve may include a fluidic geometry that allows for a flow of fluid a high flow rate in one direction, forward flow, and a low flow rate in the opposite direction, reverse flow. The reverse flow includes a swirling flow that increases the pressure drop and reduces the flow rate to a third of the flow rate of the forward flow. The disclosed assembly produces a strong swirling flow (vortex) in the reverse direction and an efficient (low pressure drop) flow in the forward direction.

95. 发明申请

WO2018175847A1 FLUIDIC PCV VALVE ASSEMBLY AND SYSTEM 审中-公开
公开(公告)号：WO2018175847A1
公开(公告)日：2018-09-27
申请号：PCT/US2018/023949
申请日：2018-03-23
申请人： DLHBOWLES, INC.
发明人： GOPALAN, Shridhar , THURBER, Jerry
IPC分类号： F01M13/02 , F01M13/00 , G05D7/01
摘要： Provided is a PCV valve assembly that includes a fluidic geometry that allows for the flow of combustion fluid/gas to flow between an inlet and an outlet and switch between two modes of operation, (i) a radial or high flow mode, and (ii) a tangential or low flow mode, as dictated during the operation of the engine. At low vacuums, the fluidic equipped PCV valve assembly has been tuned to operate in the radial mode producing high flow rates due to low flow resistance. As vacuum increases, the PCV valve assembly is tuned to automatically switch modes. This may be enabled due to the shape of the fluidic geometry and the bypass channel which is adapted to vary the amount of flow between a first and a second control ports. The bypass channel allows the geometric fluidic pattern to switch between the high flow mode and the low flow mode.

96. 发明申请

WO2017192734A1 FLAG MUSHROOM CUP NOZZLE ASSEMBLY AND METHOD 审中-公开
标题翻译：标志蘑菇杯喷嘴组件和方法
公开(公告)号：WO2017192734A1
公开(公告)日：2017-11-09
申请号：PCT/US2017/030858
申请日：2017-05-03
申请人： DLHBOWLES, INC.
发明人： HASDAY, Benjamin, D. , HARTRANFT, Evan
IPC分类号： B05B1/08
CPC分类号： B05B1/08 , B05B1/34 , B05B12/06
摘要： An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.
摘要翻译：可对准的保形杯形旗蘑菇流体喷嘴组件设计成产生粘性流体产品316的扁平扇或片振动喷雾。喷嘴组件包括圆柱形蘑菇状流体杯状构件180 具有基本封闭的远端壁，其中限定有位于中央的鼻部。旗形蘑菇杯组件有效地将形成在壳体的密封柱构件中的下部或近侧部分与杯形构件180中形成的上部或远侧部分之间的流体回路的操作特征分开，杯形构件180与密封柱的远侧表面协作，限定由冲击射流供给的相互作用腔室192，每个冲击射流包括流线的连续分布，所述流线连续分布以选定角度入射以限定在出射孔口194内的中心轴向平面处提供较小程度的冲击并且在边缘处提供较大程度的冲击出口194。

97. 发明申请

WO2017132595A1 IMPROVED SWIRL NOZZLE ASSEMBLY WITH HIGH EFFICIENCY MECHANICAL BREAK UP TO GENERATE MIST SPRAYS OF UNIFORM SMALL DROPLETS 审中-公开
公开(公告)号：WO2017132595A1
公开(公告)日：2017-08-03
申请号：PCT/US2017/015477
申请日：2017-01-27
申请人： DLHBOWLES INC.
发明人： GOPALAN, Shridhar , HARTRANFT, Evan , CAMERON, Andrew D. , RUSSELL, Gregory A.
IPC分类号： B05B1/34
CPC分类号： B05B1/3436 , B05B1/14 , B65D83/753
摘要： Spray nozzle assembly (300) is configured to generate a swirled spray (312) with improved rotating velocity ω and smaller uniform droplet size. Cup-shaped nozzle member (300) has a body portion (318) with a cylindrical side wall (320) surrounding a central longitudinal spray axis (322), a circular closed end wall (324) and an exit aperture (310) coaxial with the spray axis (322) and defined through the end wall (324). A fluid dynamic circuit (330) is formed in an inner surface (326) of end wall (324) and includes three inwardly tapered power nozzles (302, 304, 306) terminating in an interaction region (308) which is exhausted via the exit aperture (310). The power nozzles have respective longitudinal axes (334, 362, 382) offset with respect to the spray axis (322) with corresponding non-tangential angles of attack (352, 374, 394) configured to efficiently cause a fluid vortex in interaction region (308).

98. 发明公开

US20240116061A1 FLUIDIC OSCILLATOR FOR A NOZZLE ASSEMBLY FOR ENHANCED COLD PERFORMANCE 审中-公开
公开(公告)号：US20240116061A1
公开(公告)日：2024-04-11
申请号：US18544638
申请日：2023-12-19
申请人： DLHBOWLES, INC.
发明人： Chunling Zhao
IPC分类号： B05B1/08 , B05B1/04
CPC分类号： B05B1/08 , B05B1/04
摘要： Provided is a fluidic oscillator circuit for a nozzle assembly configured to generate oscillating sprays of fluid from an outlet of the nozzle assembly and to improve spray performance of fluid having low temperatures or high viscosity. In one embodiment, provided is an interaction region for a fluidic oscillator circuit that includes an apex protrusion shaped to assist with generating vortices within the interaction region. In another embodiment, provided is an interaction region for a fluidic oscillator having a power nozzle that includes at least one finger protrusion that lengthens the power nozzle to create jets of fluid in the interaction region that are less diffused to improve cold performance of the fluidic oscillator circuit.

99. 发明公开

US20230355470A1 SPA NOZZLE WITH VARIABLE CROSS-SECTION INERTANCE LOOPS ASSEMBLY AND METHOD 审中-公开
公开(公告)号：US20230355470A1
公开(公告)日：2023-11-09
申请号：US18224601
申请日：2023-07-21
申请人： DLHBOWLES, INC.
发明人： Samuel Bernstein , Alex Dotzler
IPC分类号： A61H33/00
CPC分类号： A61H33/6057 , A61H2201/1238
摘要： A fluidic geometry, chip, and nozzle assembly capable of providing multiple oscillation frequencies without the need for moving parts is contemplated. A fluidic circuit having feedback loops with differing cross-sectional areas will allow for output of oscillating sprays having different frequencies based upon fluid pressure.

100. 发明公开

US20230173510A1 MULTI-STAGE FLUIDIC OSCILLATOR WITH VARIABLE FREQUENCY ASSEMBLY AND METHOD 审中-公开
公开(公告)号：US20230173510A1
公开(公告)日：2023-06-08
申请号：US18076837
申请日：2022-12-07
申请人： DLHBOWLES, INC.
发明人： Samuel Bernstein
IPC分类号： B05B1/08
CPC分类号： B05B1/08
摘要： A multi-stage fluidic oscillating circuit and system can produce an output spray of selectively varying frequency, even though the fluid supplied to the circuit/system is maintained at a substantially constant pressure. The circuit is characterized by two successive stages, each having a power nozzle aligned around a central axis. Upstream and downstream inertance loops are included in each of the stages, with fluid from one of these loops being selectively released to affect the frequency change in the output spray. The circuit is also characterized by a splitter and optional dog ear style protrusions formed in the outlet of the circuit.

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