Dlhbowles, Inc.

Bowles Fluidics Corporation

Other

Abc Technologies Inc.

Shridhar Gopalan

Gregory Adam Russell

Chunling Zhao

Evan Hartranft

Christopher F South

Russell Hester

Alan Romack

Jerry Thurber

Andrew Cameron

Dharapuram N Srinath

Kerrie Allen

Zachary Downing Kline

Corey Zamenski

Eric Koehler

Srinivasaiah Sridhara

Benjamin D Hasday

Daniel Eugene Steerman

Rosa Korobkov

Shawn Martin

Dan Steerman

Alan Santamarina

Steve Crockett

Edward Han

Andrew D Cameron

Zachary D Kline

A micro-sized structure and construction method for a fluidic oscillator wash or spray nozzle (or) has a nozzle housing (or) enclosing an interior cavity (or) which receives an insert (or) having internal fluid passages defining first and second power nozzles (or). The power nozzles receive pressurized fluid () flowing through the interior cavity of the housing, where the fluid flows into the cavity at the bottom of the housing and flows upwardly to inlets () for the power nozzles so that accelerating first and second fluid flows are aimed by the power nozzles toward one another in an interaction region (or) which exhausts laterally along a spray axis through a horn-shaped throat defined partly within the insert and partly within the flared spray outlet orifice (or) defined through the sidewall () in the housing.

Micro-sized structure and construction method for fluidic oscillator wash nozzle

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.

Automotive image sensor surface washing and drying system and method

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.

Compact low flow rate fluidic nozzle for spraying and cleaning applications having a reverse mushroom insert geometry

A conformal, cup-shaped fluidic oscillator spray nozzle member () is configured to generate one or more oscillating sprays from fluid flowing into a substantially open proximal end and distally into a substantially closed distal end wall with one or more centrally located orifices defined therein. A multi-input, multi-output cup-shaped fluidic oscillator () is configured to generate a selected fluid spray from a plurality of (e.g., 2-8) fluid product inlets which are configured in interacting pairs and feed into a common interaction region of the fluidic nozzle geometry. Optionally, an outlet 'A' can be positioned in the interaction region and allow for air entrainment into the interaction region or external oscillating spray streams to generate a foamed spray of fluid product.

Multi-inlet, multi-spray fluidic cup nozzle with shared interaction region and spray generation method

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.

Clog resistant in-line vortex element irrigation emitter

Automotive image sensor surface washing and drying system

A vacuum generator/amplifier system for gas applications and a brake booster generation method uses a vacuum amplifier system including a multi-lumen defining member comprising a modified venturi geometry having a converging section leading to a throat (lumen segment of minimum ID diameter), followed by a straight section culminating in to a diverging section and a port for output vacuum which is located after the throat at the beginning of the straight section. The converging section has a sinusoidal shape leading to the point of convergence, also called the throat, with a minimum internal lumen diameter D, and generates an amplified vacuum at the output with a gain ratio of four to one, with substantially reduced parasitic losses, even at low flows.

Vacuum generator/amplifier for gas applications and brake booster generation method

A miniature low-flow, fluid conserving washer nozzle has an elongated housing enclosing an interior volume aligned along an inlet axis which receives an elongated insert member with internal fluid passages defining first and second power nozzles, so that accelerating first and second fluid flows are aimed by the first and second power nozzles toward one another in an interaction region defined within the insert with an insert throat to aim spray laterally or transversely along a spray axis through an aligned sidewall aperture in the nozzle housing. The nozzle may generate a planar oscillating sweeping fan of spray, produced by fluidic oscillations at low flow rates, typically 150-300 ml/min at 25 psi. The fan of spray generated may be varied from 20&#xb0; to 70&#xb0; or about 15&#xb0;-60&#xb0;. The outer dimensions of spray head could be as small as 3.5 mm. The fluidic geometry is also capable of spraying high viscosity liquids up to 25 CP or up to 15 CP.

Low-flow miniature fluidic spray nozzle assembly and method

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.

Fluidic PCV valve assembly and system

A nozzle assembly includes a fluidic oscillatoroperating on a pressurized fluid to generate an oscillating spray of fluid droplets, and the oscillator aims fluid jets from first, second and third power nozzlesA,B,C into an interaction chamberand toward an upwardly projecting island protuberancedefining first, second and third island wall segments. The outermost jetsA,B are aimed at an obtuse angle of 100 to 140 degrees along axes which intersect beyond the island at a Jet intersection point, J. The upstream end of interaction chamberis defined by first and second laterally offset concave wall surfaceswhich 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

Three-jet fluidic oscillator circuit, method and nozzle assembly

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.

Bi-directional fluidic PCV valve assembly and system

A nozzle and spray dispenser for generating a uniform substantially flat fan spray pattern when spraying high viscosity fluids (i.e., oils, lotions, cleaning liquids, shear-thinning liquids and gels and similar Newtonian and non-Newtonian fluids having viscosities of 10-100 cP) is configured with an exit orificedefining multiple lip segmentsA,B,C. Cup-shaped nozzle memberhas a cylindrical side wallsurrounding a central longitudinal axis and has a circular closed end wall with at least one exit aperture passing through the end wall. At least one enhanced exit orifice structure is formed in an inner surface of the end wall, and includes two to five lip segments of selected width defining edges at the orifice, where each edge segment is defined at the distal edge of a separate and distinct interior wall segmentA,B,C which has a selected wall convergence angle &#x3b2;.

Spray nozzle for high viscosity spray applications with uniform spray distribution

A very compact nozzle assemblyand spray head for an automotive washer nozzle is configured for inclusion into an automotive trim component. The compact nozzle assembly and spray head generate a very effective cleaning spray at a selected spray fan angle, yaw angle and roll angle and, in an exemplary embodiment, the spray fan is dual shear shaped, producing an even distribution, which may be varied from 30&#xb0; to 120&#xb0;. Spray head may be as small as 5 mm in diameter and be aimed to provide a spray with various spray aim, yaw and roll angles. The design accounts for better mold ability and versatility of application.

Compact split-lip shear washer nozzle

A conformal, cup-shaped fluidic nozzle engineered to generate an oscillating spray is configured as a (e.g.,or). Preferably, the fluidic circuit's oscillation inducing geometryis molded directly into the cup's interior wall surfaces and the one-piece fluidic cup may then fitted into an actuator (e.g.,). The fluidic cup (e.g.,or) conforms to the actuator stem used in typical aerosol sprayers and trigger sprayers and so replaces the prior art 'swirl cup'that goes over the actuator stem (e.g.,), With the fluidic cup (e.g.,or) and method of the present invention, vendors of liquid products and fluids sold in commercial aerosol sprayersand trigger sprayerscan now provide very specifically tailored or customized sprays.

Growing community of inventors

Westminster, MD, United States of America

Shridhar Gopalan