Segmented Pressure Fitting Assembly for Easier Material Testing

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Solution Overview

Problem

Existing pressure valves for material flows require extensive and costly material testing due to complex geometries, which makes it difficult to identify defects like cracks and inclusions.

Innovation Solution

A pressure fitting design with separate base and wall bodies, each made of molded parts without castings or forgings, and a pressure-reducing unit that can be inserted and fixed mechanically, allowing for easier material testing before assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If pressure valves are made with complex geometries to fulfill functional requirements, then the functional performance is improved, but the difficulty and cost of material testing increases significantly

Engineering Contradiction:

Improvefunctional performanceVSAvoidmaterial testing difficulty

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The pressure valve is divided into multiple separate components (body, pressure-reducing unit, sealing elements) that can be manufactured and tested independently. This segmentation allows each component to be tested separately using standard testing methods, avoiding the need to test complex assembled geometries while maintaining the overall functional performance of the valve.

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If pressure valves use castings and forgings to achieve complex shapes, then the manufacturing capability is improved, but the reliability of material quality decreases due to undetected defects

Engineering Contradiction:

Improvemanufacturing capabilityVSAvoidmaterial quality reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Standardized components are pre-manufactured using reliable processes (pressing, drawing) rather than casting or forging, and pre-tested for material quality before final assembly. This preliminary action ensures high material quality reliability while maintaining the ability to manufacture complex valve geometries through assembly of standardized parts.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If extensive material testing is performed on complex pressure valve components, then the material quality reliability is improved, but the time and cost of manufacturing increases

Engineering Contradiction:

Improvematerial quality reliabilityVSAvoidtesting time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

By segmenting the valve into standardized components that can be tested independently using efficient methods (particularly ultrasonic testing for pressed and drawn parts), the overall testing time is reduced compared to testing complex assembled geometries, while maintaining comprehensive material quality verification.

Inventive Principle:

Principle #1Segmentation

4Strength

If pressure valves are designed as single integrated parts, then the structural integrity is improved, but the ease of assembly and disassembly decreases

Engineering Contradiction:

Improvestructural integrityVSAvoidassembly ease

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

Multiple standardized components are merged through reliable connection methods (welding, threading, flanging) to create an integrated pressure valve assembly that achieves structural integrity equivalent to or better than single-part designs, while maintaining the advantage of modular assembly and disassembly for maintenance and replacement.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4155598B1Pressure fitting for material flows, method for operating pressure fittings and use

Publication Date: 2025.07.23 DAUME ACHIM

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AI summary

A pressure fitting for material flows is presented, comprising a base body with a pressure-reducing unit arranged inside the base body, characterized in that a) a material interruption is realized between the base body and the pressure-reducing unit, and/or b) a material interruption is realized between a wall body and the base body arranged inside the wall body.