Injection-Molded Valve Housing With Integrated Valve Seats
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Solution Overview
Problem
Existing fluid valves require time-consuming and costly adjustments to achieve desired closing behavior due to the independent valve seat component, leading to manufacturing fluctuations and quality uncertainties.
Innovation Solution
A valve housing with integrally formed valve seats using injection molding, eliminating the need for separate valve seat components and reducing assembly effort, ensuring precise and consistent closing behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate valve seat component is inserted or screwed into the valve housing, then the valve seat can be manufactured independently, but the installation position varies and requires time-consuming adjustment
Solution Approach 1:
The valve seat is integrated directly into the valve housing as a single molded component, eliminating the separate valve seat component. This merging of components ensures precise and consistent installation position while maintaining ease of manufacture through injection molding. The valve seat forms an integral part of the valve housing body, removing the need for separate assembly and adjustment operations.
2Adaptability or versatility
If a separate valve seat component is used, then the valve seat can be replaced or adjusted, but the assembly effort increases and production costs rise
Solution Approach 1:
The valve seat and valve housing are manufactured as a single integrated component through injection molding, eliminating the need for separate assembly operations. This integration significantly increases assembly speed and productivity while reducing production costs. The valve seat becomes an inherent part of the valve housing structure, removing all assembly and adjustment steps.
3Reliability
If the valve seat is adjusted by a workman, then the desired closing behavior can be achieved, but the functional quality fluctuates due to adjustment accuracy variations
Solution Approach 1:
The integrated valve seat ensures consistent and precise closing behavior by eliminating manual adjustment operations. The valve seat's position and geometry are precisely controlled during the injection molding process, ensuring uniform functional quality across all produced valves. This manufacturing method removes human variability from the positioning process, achieving high reliability and consistency in closing behavior.
4Manufacturing precision
If the valve seat projects into the receiving space forming an undercut, then the valve seat can be integrally formed with the valve housing, but the injection molding process becomes more complex
Solution Approach 1:
The injection molding process incorporates preliminary design features in the mold structure that enable the formation of undercuts and projecting valve seats. By pre-planning the mold cavity design and injection parameters, the complex geometry of the integrated valve seat is achieved automatically during molding, without requiring additional manufacturing steps or complex post-processing operations.
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 results in reduced manufacturing fluctuations, simplified assembly, and improved fluid valve performance with enhanced sealing tightness and reduced production costs.
Implementation Method 1
The valve housing (10) is an integral injection-molded part, the at least one valve seat (13, 14) being integrally formed with the valve housing (10) by an injection molding process
Data Source
AI summary
A valve housing for a fluid valve having at least one fluid channel through which a fluid can flow is provided. The valve housing can have a receiving space for a valve closing body movable in the valve housing, the receiving space having an opening, via which the valve closing body is introduced into the receiving space of the valve housing, and at least one first valve seat being formed in the receiving space and projecting into the receiving space in such a way that at least one undercut is formed in the receiving space by the first valve seat, and the valve housing being an integral injection-molded part, the at least one valve seat being produced integrally with the valve housing by an injection molding process.