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公开(公告)号：US20190202411A1
公开(公告)日：2019-07-04
申请号：US16234748
申请日：2018-12-28
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao , Shridhar Gopalan
CPC classification number: B60S1/56 , B08B5/02 , B60S1/52 , B60S1/54 , G02B27/0006
Abstract: The present disclosure relates to automated or remotely controlled methods and apparatuses for cleaning and drying soiled external 2-D or 3-D image sensor surfaces such as objective lenses on Light Detection and Ranging (“LIDAR”) sensors when mounted in a configuration that is exposed to dirty environments.
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公开(公告)号：US11465595B2
公开(公告)日：2022-10-11
申请号：US16234748
申请日：2018-12-28
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao , Shridhar Gopalan
Abstract: The present disclosure relates to automated or remotely controlled methods and apparatuses for cleaning and drying soiled external 2-D or 3-D image sensor surfaces such as objective lenses on Light Detection and Ranging (“LIDAR”) sensors when mounted in a configuration that is exposed to dirty environments.
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公开(公告)号：US11141742B2
公开(公告)日：2021-10-12
申请号：US16255326
申请日：2019-01-23
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao
Abstract: A low flow compact spray head design for cleaning applications, especially for camera lens wash includes a miniature spray nozzle head which is about 5 mm in diameter or less for a single direction spray nozzle and about 8 mm in diameter of less for a nozzle with multiple sprays. The washer fluid is fed from the bottom of nozzle along a flow axis and is separated into two flows via two power nozzles or inlets which turn the flows 90° to become opposing jets impinging upon each other inside an interaction region. Uniform stream lines are generated by the two direct facing jets and converge at the nozzle throat to become a uniform spray fan, which is on a plane perpendicular to the axis of cylindrical nozzle head. This fluidic circuit design enables a miniature size low flowrate nozzle to operate well consistently with low flow rate (e.g., a flow rate of about 150 mL/min to about 300 mL/min at 25 psi, or even a flow rate of about 250 mL/min at 25 psi or above, at a viscosity of about 25 CP) at cold temperate (−4° F. or lower) with 50 percent ethanol. This nozzle design is capable of generating two or more different oriented spray fans (e.g., fans spraying in opposing directions) from one single nozzle.
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公开(公告)号：US20210114044A1
公开(公告)日：2021-04-22
申请号：US17073909
申请日：2020-10-19
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao
Abstract: 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.
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5.发明申请公开(公告)号：US20210094048A1
公开(公告)日：2021-04-01
申请号：US17034729
申请日：2020-09-28
Applicant: DLHBOWLES, INC.
Inventor： Russell Hester , Zachary Kline , Chunling Zhao
Abstract: The disclosure relates to various fluid nozzles possessing the ability to produce a keystone-shaped spray pattern. In one embodiment, the present disclosure relates to one or more fluid nozzles that are able to produce a keystone-shaped spray pattern. In another embodiment, the present disclosure relates to two or more fluid nozzles that are able to be stitched together to produce a keystone-shaped spray pattern. In still another embodiment, the fluid nozzle, or nozzles, of the present disclosure are able to produce a desired spray pattern at low flow rates.
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Patent Agency Ranking
公开(公告)号：US20190202410A1
公开(公告)日：2019-07-04
申请号：US16235459
申请日：2018-12-28
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao , Shridhar Gopalan
IPC: B60S1/52
CPC classification number: B60S1/52 , B05B1/08 , B60S1/54 , B60S1/56 , G02B27/0006 , G05D1/0231 , G05D2201/0213
Abstract: The present disclosure relates to automated or remotely controlled methods and apparatuses for cleaning and drying soiled external 2-D or 3-D image sensor surfaces such as objective lenses on Light Detection and Ranging (“LIDAR”) sensors when mounted in a configuration that is exposed to dirty environments.
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公开(公告)号：US10328906B2
公开(公告)日：2019-06-25
申请号：US15303329
申请日：2015-04-11
Applicant: dlhBOWLES, Inc.
Inventor： Russell D. Hester , Chunling Zhao , Nicholas Bryce Watkins , Praveen Pai
Abstract: A low profile, integrated camera wash nozzle assembly 1010 is readily and unobtrusively integrated into a vehicle's exterior trim surfaces 1420 to make a more visually appealing exterior design while not compromising spray performance. A system and nozzle assembly (e.g., 710, 810, 1010) for cleaning an exterior objective lens or wide-angle sensor's exterior surface 1022 to remove accumulated debris sprays washer fluid at a selected shallow angle which is substantially transverse to the lenses central viewing axis 1050. A low-profile conformal housing fixture 1011 is adapted to receive and aim a very compact fluidic circuit insert 1200 that can generate a wide spray which substantially covers the lens surface, despite being very close to the edge of the lens 1022.
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公开(公告)号：US20170136472A1
公开(公告)日：2017-05-18
申请号：US15406702
申请日：2017-01-14
Applicant: dlhBowles, Inc.
Inventor： Shridhar Gopalan , Chunling Zhao , Andrew Cameron
CPC classification number: B05B1/08 , B05B1/34 , B05B1/3478 , B05B17/04 , B60S1/52
Abstract: A nozzle assembly includes a fluidic oscillator 100 operating on a pressurized fluid to generate an oscillating spray of fluid droplets, and the oscillator aims fluid jets from first, second and third power nozzles 114A, 114B, 114C into an interaction chamber 118 and toward an upwardly projecting island protuberance 126 defining first, second and third island wall segments. The outermost jets 114A, 114B are aimed at an obtuse angle of 100 to 140 degrees along axes which intersect beyond the island at a Jet intersection point, J1. The upstream end of interaction chamber 118 is defined by first and second laterally offset concave wall surfaces 142, 152 which define left side and right side vortex generating areas so that fluid jet steering vortices may be alternately formed and then displaced distally and shed to steer the fluid jet laterally within interaction chamber 118.
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公开(公告)号：US20240116061A1
公开(公告)日：2024-04-11
申请号：US18544638
申请日：2023-12-19
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao
Abstract: 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.
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公开(公告)号：US11305297B2
公开(公告)日：2022-04-19
申请号：US16000141
申请日：2018-06-05
Applicant: DLHBOWLES, INC.
Inventor： Edward Han , Shridhar Gopalan , Chunling Zhao
Abstract: The invention relates to various low flow rate fluidic nozzle inserts having a reverse mushroom-shaped mushroom insert geometry that are useful for a wide range of spraying and cleaning applications. In one embodiment, the present invention relates to fluidic nozzle inserts that are able to perform at low flow rates with geometrical and dimensional limitations. In still another embodiment, the present invention relates to compact fluidic nozzle inserts that provide a manner by which to attain a desired level of performance in a fluidic nozzle assembly for small scale applications at low flow rates.
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