Central Fixation Valve Pneumatic Assembly

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Solution Overview

Problem

Existing pneumatic valve devices require complex assembly processes, numerous parts, and expensive manufacturing methods, leading to increased costs and reduced reliability.

Innovation Solution

A pneumatic valve device with a simplified design featuring a single mechanical fastener that fixes the shaft and body together, eliminating the need for additional parts and complex assembly processes, while maintaining a compact and reliable structure through a rotatable discs arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If traditional pneumatic valve devices use multiple fasteners and complex assembly structures, then the structural stability is improved, but the assembly time and device complexity increase

Engineering Contradiction:
Improvestructural stabilityVSAvoidassembly time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent combines multiple fastening functions into a single central fastener that secures both the shaft and valve discs arrangement simultaneously. This merging of fastening operations reduces assembly time while maintaining structural stability through the integrated fastening design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The central fastener serves multiple functions: it secures the shaft to the valve body, holds the valve discs arrangement in place, and provides a mounting point for the lever arm. This multi-functional design reduces the total number of parts and assembly steps while ensuring structural integrity.

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

2Stability of the object's composition

If traditional pneumatic valve devices use numerous parts and complex assembly processes, then the structural completeness is improved, but the manufacturing cost and device complexity increase

Engineering Contradiction:
Improvestructural completenessVSAvoidnumber of parts
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The invention merges multiple structural components and fastening elements into a simplified design with fewer parts. The central fastener replaces multiple separate fasteners, and the integrated shaft-body-lever arm construction reduces the total component count while maintaining structural completeness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Each component in the simplified design serves multiple functions. The shaft provides rotational movement and structural support, the central fastener provides multiple fastening functions, and the lever arm integrates with the fastener mounting. This multi-functionality reduces part count while ensuring structural completeness.

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

3Manufacturing precision

If traditional pneumatic valve devices use expensive manufacturing methods, then the manufacturing precision is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvevalve precisionVSAvoidmanufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The valve is designed with segmented, modular components that can be manufactured using standard, cost-effective processes. The shaft, valve body, and valve discs are separate elements that can be produced independently using conventional manufacturing methods, then assembled with a simple central fastener, reducing overall manufacturing cost while maintaining precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design uses standard geometric parameters and common fastener sizes that can be manufactured with conventional precision machining. By avoiding specialized or custom manufacturing processes and using standard parameters throughout, the valve achieves required precision at lower manufacturing cost.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2824372B1Central fixation valve
Publication Date: 2017.11.01 WABCO EURO BVBA SPRL
  • EP2824372B1 patent drawingFigure 1A~1B
  • EP2824372B1 patent drawingFigure 2
  • EP2824372B1 patent drawingFigure 3A~3B

AI summary

A pneumatic valve device (1000) for passing air between the valve and a utilization element (400) comprising a valve housing (100) and a rotatable valve discs arrangement (200). According to the invention the valve housing has a shaft (110) and a body (120), wherein a rotatable discs arrangement (200) has at least two valve discs (210 and 220) and wherein the first rotatable disc (210) is fixed to the shaft (110) and the second rotatable disc (220) is fixed to the body (120) and wherein the shaft (110) and the body (120) are rotatable to each other with respect to the rotational direction of the rotatable discs arrangement (200), and the body (120) and the shaft (110) are movable relative into the other and have a plugged up end position, and the shaft (110) and the body (120) are hold by a single mechanical fastener (300).