Sintered Metal Powder Receptacle Filter for Hydrogen Charging
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Solution Overview
Problem
Conventional receptacle filters for charging high-pressure hydrogen have complex structures with many components, leading to poor filtering performance due to large gaps between wound spring wires, and fine pores in filter bodies are insufficient for removing impurities effectively.
Innovation Solution
A receptacle filter with a filtering unit made by sintering metal powder, featuring a conical metal powder filtering member with fine pores, integrated with a one-way valve to control hydrogen flow, providing superior corrosion resistance and resistance to hydrogen brittleness, and reducing production costs through a simpler structure with fewer components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter body with fluid passing holes and wound spring wire is used, then the structure provides mechanical support and filtering function, but the structure becomes complex and the gaps between spring wires are too large to effectively filter hydrogen gas
Solution Approach 1:
The invention merges the filter body and filtering element into a single integrated sintered metal powder filter. The support body and filtering member are combined into one component with a monolithic sintered structure, eliminating the need for separate wound spring wires and fluid passing holes. This integration resolves the technical contradiction by providing effective filtering through the sintered pore structure while simplifying the overall device structure.
Solution Approach 2:
The invention uses sintered metal powder to create a porous filtering member with controlled pore sizes. The sintering process creates a network of fine pores throughout the filter body, replacing the ineffective large gaps between spring wires. This porous structure provides reliable impurity removal while maintaining structural integrity, resolving the contradiction between filtering performance and structure complexity.
2Reliability
If fine pores are formed in the filter body, then filtering performance improves, but the structure becomes more complex requiring multiple components
Solution Approach 1:
The invention combines the filter body and filtering member into a single sintered metal powder component. The support function and fine pore filtering function are integrated into one monolithic structure, eliminating the need for separate components. This resolves the technical contradiction by achieving effective impurity removal through the sintered pore network while reducing component count and structural complexity.
Solution Approach 2:
The invention changes the structural parameters of the filter by using sintered metal powder with controlled pore size distribution. The sintering process creates a hierarchical pore structure with appropriate pore diameters for hydrogen gas filtering. This parameter change enables effective impurity removal while maintaining a simple single-component structure, resolving the contradiction between filtering performance and device complexity.
3Reliability
If a sintered metal powder filtering member is used, then filtering performance and corrosion resistance improve, but the manufacturing process becomes more specialized
Solution Approach 1:
The invention changes the material state from solid metal wire or sheet to sintered metal powder. The sintering process creates a porous structure with enhanced corrosion resistance and hydrogen brittleness resistance. While the sintering process is specialized, it consolidates multiple manufacturing steps into one process, creating a single-component filter that is both high-performance and manufacturable. This resolves the contradiction by providing superior reliability through material parameter changes.
Solution Approach 2:
The invention uses sintered metal powder as a composite material structure, combining metal particles into a porous network. This composite structure provides both mechanical strength and filtering performance with enhanced corrosion resistance. The sintered composite material approach resolves the contradiction by delivering superior reliability through material composition while maintaining manufacturing feasibility through a consolidated sintering process.
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
The solution effectively removes impurities from hydrogen gas while reducing production costs and improving filtering performance by using a sintered metal powder filtering member with a conical shape and fine pores, enhancing the reliability of hydrogen charging systems.
Implementation Method 1
a metal powder filtering member (14) which is integrally provided on a front surface of the support body (12)
Implementation Method 2
a one-way valve (20) for controlling a flow direction of the hydrogen gas
Data Source
AI summary
The present invention provides a receptacle filter for charging hydrogen which can reliably remove impurities from hydrogen gas when charging hydrogen into a tank. The receptacle filter of the present invention includes a filtering unit which removes impurities from hydrogen gas, and a one-way control valve which controls the flow direction of hydrogen gas.