Low-Profile Nozzle System for Lateral Fluid Jet Processing

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Solution Overview

Problem

Conventional fluid jet systems are unsuitable for processing workpieces in confined or remote locations due to their large axial lengths, which restrict access to areas with minimal clearance, such as aircraft components with closely spaced features.

Innovation Solution

A low-profile fluid jet delivery system with a nozzle system that can be navigated through narrow spaces and redirect fluid flow to output a laterally directed fluid jet, allowing for access to remote interior regions and varying feature geometries, and includes secondary flow ports to alter flow characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If conventional straight nozzle systems are used, then fluid jet processing capability is achieved, but axial length becomes too large for confined spaces

Engineering Contradiction:
Improveaxial length of nozzle systemVSAvoidaccessibility to confined spaces
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The patent redirects fluid flow from a linear axial path to a lateral direction using angled conduits and flow redirectors. The fluid jet is delivered perpendicular or at an angle to the nozzle system's longitudinal axis, transforming the flow direction from one dimension (axial) to another dimension (lateral), thereby reducing the axial length requirement while maintaining processing capability

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs curved or angled conduits instead of straight linear paths to guide fluid flow. The feed conduit and mixing conduit are configured with bends and angles to redirect fluid laterally, creating a compact curved flow path that reduces the overall axial footprint of the nozzle system

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Device complexity

If conventional linear nozzle systems are used, then simple structure is maintained, but clearance requirements increase

Engineering Contradiction:
Improvenozzle system structureVSAvoidoperating clearance
Core Design Contradiction:
Device complexityVSLength of stationary object

Solution Approach 1:

The patent introduces lateral fluid delivery at angles (45 degrees, 90 degrees) relative to the nozzle axis, changing the delivery direction from the primary axial dimension to lateral dimensions. This dimensional change allows the nozzle to operate in tighter clearance spaces while maintaining a relatively simple structural configuration

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent integrates multiple flow paths (feed conduit, mixing conduit, secondary flow ports) within a compact nozzle body structure. The secondary flow ports are positioned along the conduit walls, nesting additional flow control functionality within the existing structural envelope rather than requiring separate external components

Inventive Principle:
Principle #7Nested doll (Nesting)

3Length of stationary object

If lateral fluid jet direction is implemented, then operating clearance is reduced, but fluid flow redirection complexity increases

Engineering Contradiction:
Improveoperating clearanceVSAvoidfluid flow redirection structure
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The patent uses smoothly curved angled conduits to redirect fluid flow laterally. The curved geometry of the feed conduit and mixing conduit provides gradual flow direction changes, reducing flow separation and turbulence while achieving the desired lateral jet orientation with a compact structure

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent introduces flow redirectors as intermediary components that facilitate the transition from axial to lateral flow direction. These redirectors act as mediators between the linear feed system and the lateral delivery requirement, simplifying the overall flow redirection process

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables efficient processing of workpieces with minimal clearance by reducing the operating clearance and allowing for flexible orientation and flow parameter adjustments, enhancing accessibility and processing capabilities in tight spaces.

Implementation Method 1

pressurizing fluid and then delivering the pressurized fluid against workpieces

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

nozzle orifice configured to generate a fluid jet using fluid flowing through the fluid inlet

Methodology Applied
Scientific EffectFluid jet: Jet

Implementation Method 3

the flow redirector receives fluid flow traveling in a first direction and directs the fluid flow in a second direction

Methodology Applied
Scientific EffectFlow redirection:

Implementation Method 4

Fluids (e.g., water, saline, air, gases, and the like), media, etchants, and other substances suitable for delivery via the nozzle system can be delivered through the secondary flow ports so as to alter one or more desired flow criteria

Methodology Applied
Scientific EffectFluid mixing:

Data Source

PatentEP2546026B1Apparatus for formation of laterally directed fluid jets
Publication Date: 2014.11.12 FLOW INTERNATIONAL CORP
  • EP2546026B1 patent drawingFigure 1
  • EP2546026B1 patent drawingFigure 2
  • EP2546026B1 patent drawingFigure 3A

AI summary

A processing apparatus is provided to process a workpiece. The processing apparatus can have a low-profile nozzle system capable of navigating through spaces in order to process target regions with relatively small clearances. A fluid jet outputted from the nozzle system is used to cut, mill, or otherwise process the target region of the workpiece.