Heating Flow Regulator Layout for Compact Precise Presetting

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Solution Overview

Problem

Existing flow rate regulators for heating systems are not compact enough to fit within standard housing designs, making them difficult to install in new systems and requiring additional space, and they lack fine adjustment capabilities.

Innovation Solution

The flow rate regulator features a first throughflow opening on the casing side, allowing for a smaller axial length of the quantity control module, and includes a rotatable regulating insert that interacts with the sleeve to adjust the cross-section of the first flow opening, enabling precise control and compact design. The sleeve surrounds the pot, and the second flow opening is an axial gap with a constant width, allowing for sensitive regulation based on pressure conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the first flow opening is provided on the pot side of the quantity control module, then the flow rate can be regulated, but the axial length of the quantity control module becomes large, requiring more installation space

Engineering Contradiction:
Improveflow rate regulation capabilityVSAvoidaxial length of quantity control module
Core Design Contradiction:
Ease of operationVSLength of moving object

Solution Approach 1:

The patent inverts the conventional design by moving the first flow opening from the pot side to the casing side. This positional inversion allows the heating medium to flow through the casing first, then through the pot, enabling compact axial arrangement while maintaining flow rate regulation functionality through the sleeve's interaction with the regulating insert.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent implements nesting by placing the pot inside the casing and the regulating insert inside the sleeve. The sleeve surrounds the pot, and the regulating insert rotates within the sleeve, creating a nested structure that minimizes axial length while preserving all regulatory functions.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of stationary object

If a compact design is implemented to reduce installation space, then the regulator can fit standard housing, but the adjustment precision may be compromised

Engineering Contradiction:
Improveinstallation space requirementVSAvoidflow rate adjustment precision
Core Design Contradiction:
Volume of stationary objectVSMeasurement precision

Solution Approach 1:

The patent employs dynamic adjustment mechanisms where the sleeve can move axially and the regulating insert can rotate. These dynamic movements allow continuous variation of the first flow opening's effective cross-section, providing fine adjustment precision within a compact structure. The spring-loaded sleeve responds dynamically to pressure differences while maintaining precise control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes geometric parameters of the flow openings through mechanical movement. The regulating insert's rotation changes the effective cross-section of the first flow opening, while the sleeve's axial position adjusts the second flow opening. These parameter changes enable precise flow rate control without increasing overall device volume.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the sleeve and pot are spring-loaded relative to each other, then the structure can accommodate pressure differences, but the device complexity increases

Engineering Contradiction:
Improvepressure difference accommodationVSAvoidspring-loaded mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring-loaded sleeve automatically responds to pressure differences without external control. When pressure differences occur, the spring forces the sleeve to move axially, self-regulating the second flow opening's cross-section. This self-service mechanism maintains reliability while keeping the control system simple and intuitive.

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 results in a more compact flow rate regulator that can be integrated into standard housing, reducing installation space and allowing for precise flow rate adjustments, enhancing reliability and safety by minimizing tolerances and ensuring uniform flow conditions.

Implementation Method 1

a sleeve of the quantity control module and a pot of the quantity control module, which are spring-loaded relative to one another via a pretensioning spring

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

depending on an axial position, which varies with the pressure difference, a cross section of a second flow opening for the heating medium can be changed

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Data Source

PatentEP2988071B1Flow regulator
Publication Date: 2016.06.22 IMI HYDRONIC ENG INT SA
  • EP2988071B1 patent drawingFigure 1
  • EP2988071B1 patent drawingFigure 2

AI summary

The invention relates to a presettable flow rate regulator for a heating system with a housing which has an inlet connection for a heating medium, an outlet connection for the heating medium and a presetting connection, with a volume control module which changes a flow rate for the heating medium depending on a presetting and a pressure difference. and with a handle, which interacts with a movably arranged component of the quantity regulation module for presetting the flow rate, wherein an effective cross section of a first flow opening for the heating medium can be adjusted by means of the handle in order to change the preset flow rate, and wherein for regulating the preset flow rate of the heating medium a Sleeve of the quantity regulation module and a pot of the quantity regulation module, which are spring-loaded relative to one another via a prestressing spring, are arranged such that they can be displaced axially relative to one another, and depending on an axial position, which varies with the pressure difference, a cross section of a second flow opening for the heating medium can be changed, with the inflow to the quantity regulation module on the jacket side via the first through-flow opening provided on the sleeve, which is provided in front of the second through-flow opening in relation to a direction of flow of the heating medium.