Fluid Distributor Assembly Modular Adapter Connection

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Solution Overview

Problem

Existing fluid distributor arrangements face challenges in connecting differently dimensioned and designed distributor modules due to mismatched screw connections, particularly when smaller first distributor modules need to be fixed to larger second distributor modules, as the internal fluid channels obstruct the screw path.

Innovation Solution

The threaded holes on the first distributor module are aligned obliquely with respect to its mounting surface, allowing an adapter element to be fixed using a fastening screw, which is then connected to the second distributor module through a recess and connecting hole, enabling a screw connection without direct contact between the modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If threaded holes are used to fix distributor modules directly to one another, then mechanical connection is achieved, but the internal fluid channels obstruct the screw path when connecting differently dimensioned modules

Engineering Contradiction:
Improveease of connectionVSAvoidconnection complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces an adapter element as an intermediary component between the first and second distributor modules. This adapter element has a first engagement surface that interfaces with the first module and a second engagement surface that interfaces with the second module, allowing connection of differently dimensioned modules without the screw path being obstructed by fluid channels. The adapter effectively mediates the connection between modules with mismatched mounting surfaces.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If adapter elements are used to connect differently dimensioned modules, then compatibility is improved, but additional components increase device complexity

Engineering Contradiction:
Improvemodule compatibilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adapter element is designed with universal engagement features that allow it to interface with multiple types of distributor modules. The first engagement surface can engage with standard threaded holes in first distributor modules, while the second engagement surface can engage with the unique mounting structure of second distributor modules. This multi-functional design enables a single adapter type to provide compatibility across different module configurations.

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

3Ease of manufacture

If oblique threaded holes are used on the first distributor module, then adapter fixation is enabled, but manufacturing precision requirements increase

Engineering Contradiction:
Improveadapter fixationVSAvoidthreaded hole alignment
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The oblique threaded holes are pre-formed in the first distributor module at specific angles and positions designed to receive the adapter element. By preparing these holes in advance with the correct oblique orientation, the adapter can be directly fixed without requiring additional machining or alignment steps during assembly. This preliminary preparation of the mounting structure simplifies the overall manufacturing process despite the non-standard hole orientation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2412985B1Fluid distributor assembly
Publication Date: 2017.11.01 FESTO AG & CO KG
  • EP2412985B1 patent drawingFigure 1~2
  • EP2412985B1 patent drawingFigure 3~4
  • EP2412985B1 patent drawingFigure 5

AI summary

A fluid distribution arrangement is proposed, comprising a modular assembly (1) consisting of several distribution modules (2) arranged in a row (3) and connected to each other by screw connections. A first distribution module (2a) is connected to a second distribution module (2b) by means of an adapter element (43) screwed to it, which, when the two distribution modules (2a, 2b) are joined, engages in a recess (48) of the second distribution module (2b) and can be clamped to the second distribution module (2b) by means of a connecting screw (55) that passes through the second distribution module (2b).