Gas flow measuring device

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Solution Overview

Problem

Existing gas flow measuring devices for building ventilation systems are cumbersome to handle when adjusting ventilation systems, requiring manual positioning and lacking efficient attachment mechanisms.

Innovation Solution

A gas flow measuring device with a fastening interface for detachable quick-fixing to a gas outlet opening, featuring a movable vane for measuring gas flow deflection, and a combination with a gas outlet opening using a matching counter-mounting interface, preferably with magnets, allowing tool-free separation and easy attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual positioning is used to hold the measuring device in front of a gas outlet opening, then the device can be positioned for measurement, but the handling becomes cumbersome and time-consuming

Engineering Contradiction:
Improvehandling easeVSAvoidpositioning time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The mounting interface is divided into two separate parts: a fastening interface on the measuring device and a counter-fastening interface on the gas outlet opening. This segmentation allows the measuring device to be quickly attached and detached without tools, resolving the contradiction between ease of operation and time loss during positioning.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A magnetic mounting interface acts as an intermediary mechanism between the measuring device and the gas outlet opening. The magnet and ferromagnetic material create a quick-connect device that enables tool-free attachment and detachment, significantly improving handling ease while reducing positioning time.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a fastening interface with magnet and ferromagnetic material is used for quick attachment, then tool-free attachment is achieved, but the device complexity increases

Engineering Contradiction:
Improveattachment easeVSAvoidinterface complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mounting interface serves multiple functions: it provides secure attachment during measurement, enables quick detachment for relocation, and requires no additional tools or complex mechanisms. By integrating the magnet and ferromagnetic material directly into the interface, the design achieves multi-functionality without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the measuring device is permanently installed within a flow guide, then stable measurement is achieved, but the adaptability to different gas outlet openings is reduced

Engineering Contradiction:
Improvemeasurement stabilityVSAvoidcompatibility with different openings
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The measuring device transitions from a permanent fixed installation to a dynamic, movable configuration. The detachable mounting interface allows the device to be easily moved between different gas outlet openings while maintaining measurement stability during use, thus achieving both reliability and adaptability.

Inventive Principle:
Principle #15Dynamics

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

Facilitates precise and temporary positioning without manual handling, simplifying the measurement process and improving handling efficiency by enabling tool-free attachment and detachment.

Implementation Method 1

it can also be that the mounting interface includes a magnet and the counter-mounting interface at the gas outlet opening is simply formed from ferromagnetic material, in particular from magnetizable metal

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 2

the measuring device has a vane around which the gas flow is directed and which is movably mounted... by measuring the deflection of said vane

Methodology Applied
Scientific EffectDrag: Drag

Data Source

PatentEP4711725A1Gas flow measuring device
Publication Date: 2026.03.18 VIESSMANN HOLDING INTERNATIONAL GMBH
  • EP4711725A1 patent drawingFigure 1~2
  • EP4711725A1 patent drawingFigure 3~4
  • EP4711725A1 patent drawingFigure 5~6

AI summary

The invention relates to a gas flow measuring device comprising a measuring device (1) for regulating a building ventilation system and for detecting a gas flow. According to the invention, a fastening interface (2) is provided on the measuring device (1), which serves to determine the volume flow, for its releasable, quick attachment to a gas outlet opening that provides the gas flow. The invention also relates to a gas outlet opening with the aforementioned gas flow measuring device.