Perforated Disc Valve Assembly for Fire Suppression Pressure Balance

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Solution Overview

Problem

Conventional fire extinguisher systems face challenges in efficiently dispersing fire suppressants due to pressure imbalances and mechanical complexities, particularly in responding to thermal events.

Innovation Solution

A fire suppression apparatus featuring a valve assembly with a disc assembly that includes a perforated first disc and a second disc, facilitating pressure balance and fluid flow through a passageway with a diffuser and vent valve, which replaces traditional piston assemblies, utilizing the water hammer effect for efficient fire suppressant delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional piston assembly is used to balance pressure, then pressure balance can be achieved, but mechanical complexity and cost increase

Engineering Contradiction:
Improvepressure balanceVSAvoidmechanical components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the pressure balancing function from the traditional piston assembly by using a simplified disc with a perforation. The perforated disc removes the need for complex piston mechanisms while maintaining the essential function of pressure equalization between chambers through the perforation pathway.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical piston assembly with a simpler disc structure that has a perforation. This substitution eliminates complex mechanical moving parts while achieving the same pressure balancing effect through a static perforated disc that allows fluid passage.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If a simplified disc assembly is used, then device complexity is reduced, but pressure balance capability must be maintained

Engineering Contradiction:
Improvemechanical componentsVSAvoidpressure balance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs a perforated disc that functions as a porous structure, allowing fluid to pass through the perforation to equalize pressure between chambers. This porous approach maintains pressure balance capability while using a simple disc geometry rather than complex mechanical components.

Inventive Principle:
Principle #31Porous materials

3Productivity

If conventional valve assemblies are used, then fire suppressant delivery can be achieved, but system cost increases

Engineering Contradiction:
Improvefire suppressant deliveryVSAvoidsystem cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent segments the valve assembly into distinct functional components: a disc assembly with perforation for pressure balance, a vent valve for controlled release, and a diffuser for flow distribution. This segmentation allows each component to be optimized independently and manufactured cost-effectively while maintaining overall system performance.

Inventive Principle:
Principle #1Segmentation

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

This solution enables efficient and cost-effective fire suppressant dispersion by balancing pressures and minimizing mechanical components, reducing the complexity and cost of the system while ensuring robust performance during thermal events.

Implementation Method 1

the perforation of the first disc is arranged to facilitate a pressure balance between the first chamber and the second chamber

Methodology Applied
Scientific EffectPressure balance: Pressure Gradient

Implementation Method 2

a vent valve is arranged to evacuate the second chamber

Methodology Applied
Scientific EffectEvacuation: Depressurisation

Implementation Method 3

the passageway defines a diffuser that extends between the inlet and the first chamber

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 4

utilizing the water hammer effect for efficient fire suppressant delivery

Methodology Applied
Scientific EffectWater hammer effect: Fluid Hammer

Data Source

PatentUS12023533B2Fire suppression apparatus valve assembly
Publication Date: 2024.07.02 KIDDE FENWAL LLC
  • US12023533B2 patent drawing
  • US12023533B2 patent drawing
  • US12023533B2 patent drawing

AI summary

A fire suppression apparatus includes a valve assembly connected to a container holding a fire suppressant. The valve assembly includes a valve body and a first disc. The valve body defines a passageway that extends between a first valve body end and a second valve body end. The first disc is disposed within the passageway. The first disc has a first disc body defining a perforation that extends completely through the first disc body.