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公开(公告)号：US20240278263A1
公开(公告)日：2024-08-22
申请号：US18170248
申请日：2023-02-16
Applicant: United Arab Emirates University
Inventor： Emad ELNAJJAR , Mohammed Sami Uddin KHAN
CPC classification number: B05B1/08 , B05B1/34 , F28F13/00 , F28F13/10 , Y10S165/908
Abstract: A double-sided fluidic oscillator, includes a primary feedback loop unit, a secondary feedback loop unit with two outlet and one inlet, and a common mixing chamber. Two perpendicular oscillator jets operating at different oscillation frequencies produce perpendicular and bi-stable pulsating flow oscillations, simultaneously. The proposed design of the fluidic oscillator is a double-sided fluidic oscillator. Also, disclosed is a method of achieving an enhanced heat and mass transfer by better mixing due to the wide sweeping pattern over a target surface using the double-sided fluidic oscillator.
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公开(公告)号：US20240253069A1
公开(公告)日：2024-08-01
申请号：US18289456
申请日：2022-05-02
Applicant: CARVAMED SA
Inventor： Patrick Ruchat
Abstract: A nozzle with an inlet and an outlet, including a shell, a rotor element located inside the shell and configured to be driven into rotation about a rotation axis upon being subjected to the action of a fluid flow entering the nozzle inlet and circulating through the nozzle towards the nozzle outlet, and a stationary splitter element located inside the shell, downstream of the rotor element, along the passage of the fluid flow. The rotation axis coincides with a main direction along which the fluid flow projects from the nozzle outlet. The rotor element includes peripheral helical grooves configured to permit passage of the fluid flow and cause rotation of the rotor element. The splitter element includes splitter openings communicating with a downstream end of the peripheral helical grooves to cause splitting and modulation of the fluid flow as a function of rotation of the rotor element with respect to the stationary splitter element. The nozzle further includes flow conditioning elements located inside the shell, downstream of the splitter openings, and configured to cause recombination of the fluid flow, split and modulated by the splitter element, into a pulsatile jet of fluid projecting from the nozzle outlet along the main direction that coincides with the rotation axis.
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公开(公告)号：US11872574B2
公开(公告)日：2024-01-16
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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公开(公告)号：US11865556B2
公开(公告)日：2024-01-09
申请号：US17614135
申请日：2020-05-28
Applicant: Ohio State Innovation Foundation
Inventor： Mohammad Arif Hossain , Jeffrey P. Bons , James W. Gregory , Ali Ameri
Abstract: Various implementations include, an out-of-plane feedback-type fluidic oscillator. including a first portion, a second portion, a middle portion coupled between the first portion and the middle portion, and an axis of rotation. The middle portion includes a first side, a second side opposite and spaced apart from the first side, and a middle plane, an interaction chamber, a fluid supply inlet, an outlet nozzle, a first feedback a channel, and a second feedback channel. The first side is coupled to the first portion, and the second side is coupled to the second portion. The first side, the second side, and the middle plane extend circumferentially around the axis of rotation. The middle plane is disposed equally distanced from the first side and the second side. The fluid stream oscillates as it flows through the interaction chamber such that the fluid stream oscillates as the fluid stream exits the outlet nozzle.
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Patent Agency Ranking
公开(公告)号：US11839871B2
公开(公告)日：2023-12-12
申请号：US16615596
申请日：2016-02-23
Applicant: Johnson Matthey Public Limited Company
Inventor： Kenneth Mahon , R. Bradford Fortner , Mario Jaime Castagnola
Abstract: A method of coating an end surface of a monolithic substrate with a liquid is described and an apparatus therefor. The method comprises: (a) conveying a monolithic substrate to or toward a coating roller; and (b) applying a liquid onto an end surface of the monolithic substrate by contacting the end surface with the coating roller loaded with the liquid.
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公开(公告)号：US11806733B2
公开(公告)日：2023-11-07
申请号：US17402845
申请日：2021-08-16
Applicant: DLHBOWLES, INC.
Inventor： Chunling Zhao
CPC classification number: B05B1/16 , B05B1/046 , B05B1/14 , B60S1/00 , B60S1/56 , B05B1/04 , B05B1/08
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：US20230264206A1
公开(公告)日：2023-08-24
申请号：US18024125
申请日：2021-09-03
Applicant: AS America, Inc.
Inventor： Douglas F. Leavitt , Nitin S. Kolekar , Robert M. Jensen , Walter Pitsch , Emilie Williams , Matthew Kuhns
Abstract: A microfluidic oscillator nozzle, comprising a nozzle body comprising an exterior surface; an interior surface defining a three-dimensional space therein; a fluid inlet; and a fluid outlet, wherein the three-dimensional space, the fluid inlet, and the fluid outlet are inflow communication, the three-dimensional space comprises a first fluid interaction region fluidly coupled to a first pair of feedback flow paths, and wherein a largest nozzle dimension is less than about 20.0 mm.
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89.发明申请公开(公告)号：US20180345299A1
公开(公告)日：2018-12-06
申请号：US16000141
申请日：2018-06-05
Applicant: DLHBOWLES, INC.
Inventor： Edward Han , Shridhar Gopalan , Chunling Zhao
IPC: B05B1/00
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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公开(公告)号：US20180339313A9
公开(公告)日：2018-11-29
申请号：US14320734
申请日：2014-07-01
Applicant: DLHBOWLES, INC.
Inventor： ALAN ROMACK , Keith Berning , Russell Hester , Evan Hartranft , Robert Bower , Srinivasaiah Sridhara , Eric Koehler
CPC classification number: B08B3/02 , B05B1/08 , B60R11/04 , B60S1/0848 , B60S1/52 , B60S1/56 , B60S1/62 , B60S3/04 , G02B27/0006 , H04N5/2252 , H04N5/2254 , H04N7/185
Abstract: An external lens washing system has an aiming fixture configured to support and constrain an external lens which is exposed to the elements and apt to become soiled with debris. A nozzle assembly is configured to be supported and aimed toward the external lens by the aiming fixture and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface. Optionally, an integrated image sensor and lens washing assembly is configured for use with a remote control method for cleaning an exterior objective lens surface and includes a sealed image sensor housing assembly including an integral, remotely controllable lens cleaning system with an optimized configuration for aiming one or more cleansing sprays from one or more laterally offset fluidic oscillators.
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