Oscillating Spray Nozzle Assembly With Tapered Rotor-Stator Flow

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Solution Overview

Problem

Traditional nozzles are limited in their ability to produce an oscillating spray pattern due to their constant diameter channels and rigid components, which restricts their adaptability and manufacturing options.

Innovation Solution

The nozzle assembly features one or more tapered surfaces that direct fluid towards an outlet, enabling the delivery of an oscillating spray pattern. This design also facilitates manufacturing through injection molding, allowing for more versatile component production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional nozzles use constant diameter channels and rigid components, then manufacturing is simpler, but the ability to produce oscillating spray patterns is limited

Engineering Contradiction:

Improveability to produce oscillating spray patternVSAvoidmanufacturing complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The nozzle assembly incorporates a rotor member with lobes that rotates within a stator member having corresponding cavities, creating dynamic oscillating motion. This mechanical dynamic structure enables the spray pattern to oscillate between different targets, resolving the limitation of traditional static nozzles while maintaining manufacturability through standardized rotational component design

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The nozzle is divided into distinct functional components: a stator member with cavities, a rotor member with lobes, and a spray member. This segmentation allows each component to be manufactured separately using optimized processes and then assembled, reducing overall manufacturing complexity while enabling the oscillating spray functionality through the interaction of segmented parts

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If nozzle components have complex geometries to enable oscillating spray, then spray adaptability improves, but manufacturing difficulty increases

Engineering Contradiction:

Improvespray pattern adaptabilityVSAvoidcomponent manufacturing difficulty

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The rotor member features lobes with curved surfaces that rotate within the stator cavities, creating smooth oscillating motion. The curved geometries of the lobes and cavities enable the desired spray pattern adaptability while being manufacturable using standard rotational molding or machining processes, avoiding overly complex angular or multi-faceted geometries

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If traditional nozzles use flat or consistently contoured surfaces, then manufacturing is easier, but spray pattern changeability is limited

Engineering Contradiction:

Improvespray pattern changeabilityVSAvoidnozzle structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The interaction between the rotating lobed rotor and the stator cavities creates dynamic changes in the spray pattern without requiring complex external control mechanisms. The oscillating spray pattern emerges naturally from the rotational mechanics, achieving spray pattern changeability while keeping the overall device structure relatively simple

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The nozzle assembly merges the functions of spray delivery and pattern modulation into a single integrated mechanism. The rotor-stator interaction simultaneously controls both the spray direction and pattern characteristics, reducing the need for separate control components and simplifying the overall device structure

Inventive Principle:

Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The tapered surface design allows for efficient fluid propagation and the creation of an oscillatory spray pattern, enhancing the nozzle's adaptability and manufacturability compared to traditional nozzles.

Implementation Method 1

The progressing cavity has at least two stator cavities adapted for at least partially receiving the at least one lobe and defining an oscillatory movement of the rotor member in response to a flow of a motive fluid through the progressing cavity

Methodology Applied

Scientific EffectHydrodynamic force:

Implementation Method 2

The rotor member, the spray member, and the cap cooperate to direct the motive fluid along a tapered surface of the nozzle assembly and deliver an oscillatory spray of the motive fluid therefrom

Methodology Applied

Scientific EffectFluid flow direction through tapered geometry:

Data Source

PatentUS12251719B2Nozzle assembly for delivering an oscillating spray pattern

Publication Date: 2025.03.18 SONNYS HFI HOLDINGS LLC

AI summary

Nozzle assemblies adapted to produce an oscillatory spray pattern. A rotor member having at least one lobe engaged with one or more cavities of a stator surface for defining an oscillatory movement of the rotor member in response to a motive fluid along the rotor member and stator surface. The nozzle assembly directing the motive fluid along one or more tapered surfaces, such as complementary tapered surfaces of the rotor and stator surface. The rotor member is operatively coupled with the spray member for oscillatory movement therewith. The spray member adapted to receive the motive fluid and emit the fluid as a spray from the nozzle assembly. The spray having an oscillatory pattern that matches the oscillatory movement of the rotor.