Gas Pressure Regulator Particle Trap and Diffuser Layout

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Solution Overview

Problem

Conventional gas pressure regulators are bulky, lack robustness, and have ergonomic deficiencies, making them susceptible to damage and difficult to use, especially in applications like oxy-fuel cutting where safety and fault tolerance are critical.

Innovation Solution

A redesigned gas pressure regulator with a compact, robust body featuring an offset inlet, a pocket for particle trapping, and a guide for diffusing lighter particles, along with a pressure adjustment knob with textured surfaces for ease of use, and a bonnet made from zinc-aluminum alloy for enhanced protection and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional gas pressure regulator design is used, then the regulator is simple in structure, but it is bulky and lacks robustness

Engineering Contradiction:
ImproverobustnessVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The inlet is positioned offset from the longitudinal axis of the regulator body, creating a three-dimensional flow path that enters at the distal end and redirects through channels to the central cavity. This spatial arrangement enhances structural robustness and impact resistance while maintaining a compact overall design, resolving the contradiction between robustness and structural simplicity.

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

2Reliability

If conventional gas pressure regulator design is used, then the regulator is easy to manufacture, but it is susceptible to damage from impact

Engineering Contradiction:
Improvedamage resistanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The design incorporates a particle trap pocket and flow direction channels that redirect gas flow before it reaches critical internal components. This preliminary flow management protects sensitive parts from particle damage and reduces vulnerability to impact forces, enhancing reliability without significantly complicating manufacturing.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If conventional gas pressure regulator design is used, then the regulator has traditional functionality, but it lacks ergonomic features

Engineering Contradiction:
Improveergonomic featuresVSAvoiddesign complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The offset inlet position and asymmetric internal channel configuration create a compact, ergonomic external profile that is easier to handle and operate. The asymmetric design optimizes the distribution of components for better user grip and control, improving ergonomics while maintaining functional effectiveness.

Inventive Principle:
Principle #4Asymmetry

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 solution provides a safer, more compact, and user-friendly gas pressure regulator with improved fault tolerance and resistance to impact damage, reducing the risk of equipment failure during handling or accidental mishandling.

Implementation Method 1

A pocket is disposed proximate the bottom portion of the inlet and centrally aligned with the inlet axis, the pocket disposed directly in-line with a flow of gas entering the gas pressure regulator

Methodology Applied
Scientific EffectParticle trapping: Sedimentation

Implementation Method 2

A flow of gas through the gas pressure regulator extends through the inlet, changes direction to flow through the channel, and changes direction again to flow through the cavity, and the flow of gas changes direction to go through the channel prior to reaching the pocket and impacts the guide prior to changing direction to flow through the cavity

Methodology Applied
Scientific EffectFlow diffusion: Diffusion

Data Source

PatentEP3401752B1Gas pressure regulator with particle trap and diffuser
Publication Date: 2021.08.04 VICTOR EQUIP
  • EP3401752B1 patent drawingFigure 1
  • EP3401752B1 patent drawingFigure 2
  • EP3401752B1 patent drawingFigure 3

AI summary

A gas pressure regulator for use with gas delivery systems is provided. The gas pressure regulator includes, in one form, an inlet with an entry portion and a bottom portion. A pocket is disposed proximate the bottom portion of the inlet, and a cavity is disposed within a central portion of the gas pressure regulator. A guide is disposed within a lower portion of the cavity, and a flow of gas through the gas pressure regulator extends through the inlet, changes direction to to flow through the cavity, and the flow of gas changes direction to impact the guide prior to flowing through the cavity. The pocket and the guide reduce the amount of particles capable of reaching internal components of the gas pressure regulator, resulting in low sensitivity and high fault tolerance to ignited particles coming through the gas pressure regulator in the event of accidental particle contamination.