Fluid Filter Valve Unit With Integrated Membrane Sealing
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Solution Overview
Problem
Existing fluid filters require additional components for fixing the valve membrane and maintaining separation between the raw and clean sides, increasing production and assembly costs and complexity.
Innovation Solution
A fluid filter design that incorporates a filter insert with a pressure-exerting ring to press the valve membrane onto the valve plate, eliminating the need for separate components and seals, and utilizing a pressure-exerting ring to pre-tension the spring disc for enhanced integration and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate component is used to fix the valve membrane and a separate seal is used to separate raw side and clean side, then the operational reliability is ensured, but the number of components increases and assembly complexity increases
Solution Approach 1:
The filter insert is designed to combine multiple functions: it filters fluid, fixes the valve membrane through the pressure-exerting ring, and provides sealing between raw side and clean side. This merging of functions reduces the number of separate components while maintaining operational reliability
Solution Approach 2:
The filter insert serves as a multi-functional component that simultaneously performs filtration, valve membrane fixation, and sealing operations. The pressure-exerting ring integrated into the filter insert provides both mechanical support and sealing function, eliminating the need for separate dedicated components
2Reliability
If a separate component is used to fix the valve membrane and a separate seal is used to separate raw side and clean side, then the functional requirements are met, but the production costs and assembly costs increase
Solution Approach 1:
By combining the valve membrane fixation and sealing functions into the filter insert structure, the patent reduces the total number of parts that need to be manufactured and assembled, thereby lowering production and assembly costs while meeting all functional requirements
Solution Approach 2:
The filter insert is designed as a universal component that performs multiple critical functions, reducing the bill of materials and simplifying the manufacturing process. The integrated pressure-exerting ring provides both structural support and sealing capability, eliminating the need for separate dedicated components
3Device complexity
If the filter insert presses the valve membrane onto the valve plate, then the number of components is reduced and assembly is simplified, but additional sealing means are eliminated
Solution Approach 1:
The filter insert integrates both the fixation function (pressing valve membrane onto valve plate) and the sealing function (separating raw side and clean side) into a single component structure, eliminating the need for separate sealing means while maintaining reliable separation
Solution Approach 2:
The filter insert serves as a multi-functional component that simultaneously provides mechanical fixation of the valve membrane and creates the sealing barrier between raw side and clean side, reducing component count while ensuring operational reliability
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
This design reduces the number of components required, simplifies assembly, and ensures reliable separation between the raw and clean sides without additional sealing means, while maintaining operational reliability and cost-effectiveness.
Implementation Method 1
the filter insert presses the valve membrane axially onto the valve plate with an end face of the pressure-exerting ring
Implementation Method 2
the valve membrane forms, with its membrane region pressed onto the valve plate by the pressure-exerting ring, a seal that separates the raw side and the clean side of the fluid filter from one another
Data Source
AI summary
A fluid filter comprises a housing, a fluid inlet and a fluid outlet, a filter element separating a raw side and a clean side from one another, and a valve unit. The valve unit comprises a valve plate arranged concentrically in the housing and having the shape of a circular ring disc, having valve openings and a flexible circular-ring-disc-shaped valve membrane arranged on the valve plate. The filter element comprises an axially protruding pressure-exerting ring shaped as a circumferential annular collar on the end face thereof facing the valve unit when installed. When installed in the housing, the filter element, with an end face of the pressure-exerting ring, presses the valve membrane axially onto the valve plate. The valve membrane, with the membrane region thereof pressed by the pressure-exerting ring onto the valve plate, forms a seal separating the raw side from the clean side of the fluid filter.