Axial Valve Insert Modular Assembly for Variant Reduction

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Solution Overview

Problem

Conventional filter devices require separate assembly and storage of non-return and thermostatic valves, leading to increased costs and logistical challenges due to the need for multiple variants for different vehicle applications.

Innovation Solution

A modular system allowing for flexible assembly of axial flow valve inserts with a non-return valve and a coaxially attachable cover or bypass valve, including a blind plug for closing bypass channels, using a clip connection for easy installation, enabling various variants to be produced without extensive storage or logistics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If non-return valves and thermostatic valves are installed in separate locations, then the valve functions are independent and reliable, but the installation effort and device complexity increase considerably

Engineering Contradiction:
Improvevalve function independenceVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the non-return valve and thermostatic valve into a single integrated valve insert that is axially flowable. The non-return valve is positioned downstream of the thermostatic valve within the same housing, allowing both functions to coexist in one component. This merging reduces installation complexity while maintaining functional independence through spatial separation and directional flow control.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated valve insert is segmented into distinct functional zones: the thermostatic valve section with its bypass channel and the non-return valve section with its check valve mechanism. This segmentation allows each valve type to operate independently with its own control logic while being housed in a single axially flowable unit, resolving the contradiction between integration and functional independence.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If different versions of non-return valves are kept for different vehicle variants, then each vehicle variant gets the correct valve version, but storage and logistics costs increase

Engineering Contradiction:
Improvevehicle variant compatibilityVSAvoidinventory variety
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The valve insert is designed as a universal component that can serve multiple vehicle variants through optional configurations. The housing includes standardized connection elements that allow different end pieces (with or without integrated non-return valves, with different thread types) to be attached to the same base unit. This universality enables a single core design to adapt to various application requirements without maintaining separate inventory for each variant.

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

Solution Approach 2:

The system allows dynamic configuration of the valve insert based on vehicle variant requirements. The non-return valve functionality can be activated or deactivated by selecting different end piece configurations, and the bypass channel can be opened or closed depending on the installed components. This dynamic adaptability reduces the need for multiple static versions in inventory.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If pre-assembled non-return valve units are installed, then installation is simplified, but storage and logistics costs increase due to multiple variants

Engineering Contradiction:
Improveinstallation simplicityVSAvoidvariant inventory
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The valve insert is segmented into a standardized base housing and interchangeable end pieces. The base housing contains the thermostatic valve and bypass channel, while separate end pieces provide different configurations (including or excluding non-return valves, different connection types). This segmentation allows customers to order a single base unit with different end pieces as needed, simplifying installation while reducing variant inventory.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If a modular system with multiple attachable components is used, then flexibility and adaptability increase, but device complexity increases

Engineering Contradiction:
Improvevalve insert configurationVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The modular system is segmented into clearly defined components with standardized interfaces: a base housing with integrated thermostatic valve, various end pieces with different functionalities, and connection elements. Each component has a specific function and standardized mounting interfaces, which reduces assembly complexity despite the variety of configurations available. The segmentation allows for systematic assembly rather than complex integration.

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

Enables efficient, flexible, and cost-effective production of valve inserts that can be assembled directly at the installation site, reducing storage needs and improving flow resistance, thus lowering energy consumption and logistical complexities.

Implementation Method 1

Conventional filter systems, such as oil filters or oil modules, employ thermostatic valves that divert the oil past the oil cooler during the cold start phase

Methodology Applied
Scientific EffectThermostatic valve mechanism:

Implementation Method 2

such an oil circuit incorporates a non-return valve that prevents the filter system from draining when the engine is switched off, ensuring that the required oil pressure is restored relatively quickly upon restarting

Methodology Applied
Scientific EffectNon-return valve mechanism: Valve

Implementation Method 3

the non-return valve can be connected to the cover, the bypass valve, or the blanking plug via a clip connection

Methodology Applied
Scientific EffectClip connection: Mechanical Fastener

Data Source

PatentEP2806203B1Construction kit system for a valve insert with axial throughflow
Publication Date: 2021.04.07 MAHLE INT GMBH
  • EP2806203B1 patent drawingFigure 1~2
  • EP2806203B1 patent drawingFigure 3~6

AI summary

The invention relates to a modular system (8) for an axially flowable valve insert (1) with a non-return valve (2) and a coaxially attachable cover (9) and/or a bypass valve (3). This allows for significantly greater flexibility with regard to variants.