Extinguishing Agent Container with Piston Plate Segmentation

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Solution Overview

Problem

Existing extinguishing agent containers face challenges during transport due to high-pressure requirements or pyrotechnic elements, and they often suffer from incomplete emptying, which is constructively driven.

Innovation Solution

The proposed extinguishing agent container features a pressure tank with a piston plate that divides the container cavity into an extinguishing agent room and a pressure medium room, allowing for easy transport under atmospheric pressure without pyrotechnic elements and ensuring complete emptying through a designed fluid outlet system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If conventional extinguishing agent containers are pressurized to high pressure, then the extinguishing agent can be dispensed effectively, but transport becomes problematic and restricted

Engineering Contradiction:
Improvedispensing capabilityVSAvoidtransportability
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The container is divided into two separate chambers: a first chamber for the extinguishing agent and a second chamber for the pressurizing agent. This segmentation allows the extinguishing agent chamber to be transported at atmospheric pressure while the pressurizing agent chamber provides the necessary pressure for dispensing when activated, thus resolving the contradiction between transportability and dispensing capability.

Inventive Principle:
Principle #1Segmentation

2Power

If conventional extinguishing agent containers are designed with pyrotechnic elements, then the extinguishing agent can be released effectively, but transport restrictions and safety issues arise

Engineering Contradiction:
Improveagent release capabilityVSAvoidtransport restrictions
Core Design Contradiction:
PowerVSObject-affected harmful factors

Solution Approach 1:

The pyrotechnic element is completely removed from the system and replaced with a mechanical pressurizing mechanism. The second chamber contains a pressurizing agent that mechanically pushes the piston plate to dispense the extinguishing agent without any pyrotechnic combustion, eliminating transport restrictions while maintaining effective agent release capability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Quantity of substance

If conventional extinguishing agent containers are designed for complete emptying, then the extinguishing agent is fully utilized, but the design becomes complex

Engineering Contradiction:
Improveagent utilizationVSAvoiddesign complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The system achieves complete emptying through the natural action of the pressurizing agent in the second chamber. When the pressurizing agent expands or is released, it automatically pushes the piston plate to its full extent, ensuring all extinguishing agent is dispensed without requiring complex additional mechanisms or controls.

Inventive Principle:
Principle #25Self-service

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 design facilitates safe and efficient transport of extinguishing agents and ensures complete utilization of the agent by maintaining atmospheric pressure during transport and using a piston plate system for thorough emptying.

Implementation Method 1

the container wall has at least one wall groove on an inner side, beginning at the container lid, which groove is configured to guide at least one fluid, in particular a pressure medium and an extinguishing agent. Furthermore, the piston plate has at least one piston plate groove on an upper side facing the extinguishing agent chamber, which is configured to guide a fluid, in particular at least one pressure medium

Methodology Applied
Scientific EffectFluid flow through grooves:

Implementation Method 2

a piston plate arranged in the pressure vessel... the piston plate divides the container cavity into two spaces, in particular an upper extinguishing agent space and a lower pressure agent space

Methodology Applied
Scientific EffectMechanical separation:

Data Source

PatentEP3669950B1Extinguishant container
Publication Date: 2025.04.23 MINIMAX GMBH & CO KG
  • EP3669950B1 patent drawingFigure 1
  • EP3669950B1 patent drawingFigure 2
  • EP3669950B1 patent drawingFigure 3A

AI summary

Extinguishing agent container comprising at least: a pressure vessel having a container cavity enclosed by a container lid, a container bottom and a container wall arranged between the container lid and the container bottom, a piston plate arranged in the container cavity and oriented substantially perpendicular to the container wall, which is configured to divide the container cavity into an extinguishing agent compartment and a pressure medium compartment, wherein the extinguishing agent compartment is configured to hold an extinguishing agent and the pressure medium compartment is configured to hold a pressure medium, wherein the container wall has at least one groove on an inner side in an upper region of the extinguishing agent compartment, starting at the container lid, which is configured to guide a fluid, in particular at least the pressure medium, and the piston plate has at least one groove on an upper side facing the extinguishing agent compartment.which is designed to carry a fluid, in particular at least the pressure medium.