Valve Insert With Slanted Gasket for Low-Cost Fluid Sealing
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Solution Overview
Problem
Existing valve arrangements face challenges in achieving a good fluid seal between the inlet and outlet at low costs, often requiring sophisticated machining and significant material usage for the valve housing.
Innovation Solution
The valve arrangement incorporates a circular cylindrical insert with a slanted gasket element and an insert foot for stabilization, allowing for a fluid seal between the valve inlet and outlet while reducing the complexity of the valve housing design and material usage, using a single gasket to prevent leakage and facilitate easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve housing is designed as a massive cast element to prevent leakage, then the fluid seal between inlet and outlet is improved, but the manufacturing cost and material usage increase significantly
Solution Approach 1:
The valve housing is divided into a base structure and a separate insert component. The insert contains the sealing functionality and is positioned within the housing, eliminating the need for a massive cast structure while maintaining sealing reliability. This segmentation allows the housing to be simpler and cheaper to manufacture.
Solution Approach 2:
A gasket element is introduced as an intermediary sealing component between the insert and the valve housing. This gasket provides the fluid seal function that previously required the entire housing to be massively constructed, thereby reducing material usage and manufacturing cost while maintaining reliability.
2Reliability
If the valve housing is designed as a massive cast element to prevent leakage, then the fluid seal between inlet and outlet is improved, but the machining complexity increases
Solution Approach 1:
The sealing function is segmented into a separate insert component with a gasket element, allowing the main housing to have simpler geometry and fewer machining requirements. The insert can be manufactured separately with standard precision techniques.
Solution Approach 2:
The gasket element serves as a relatively simple, replaceable sealing component that compensates for any minor manufacturing tolerances, reducing the need for high-precision machining of the housing itself.
3Reliability
If significant material is used for the valve housing to prevent leakage, then the fluid seal is improved, but the material cost and weight increase
Solution Approach 1:
The sealing functionality is extracted into a separate insert and gasket element, allowing the valve housing to be constructed with minimal necessary material. This eliminates the need for excessive material that would otherwise be required to provide sealing through the housing structure itself.
Solution Approach 2:
The sealing function is extracted from the housing structure and implemented as a separate gasket element and insert assembly. This extraction allows the housing to use only the minimum material necessary for structural support, while the sealing is provided by the extracted components.
Data Source
Figure 1
Figure 2a~2b
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AI summary
The invention relates to a valve arrangement (1) comprising a valve housing (2), a valve inlet (3), a valve outlet (4), a main valve element (5) and a main valve seat (6), the main valve seat (6) being arranged in a flow path between the valve inlet (3) and the valve outlet (4) and the main valve element (5) cooperating with the main valve seat (6), the valve housing (2) containing an insert (7), the insert (7) comprising a gasket element (8) so as to provide a fluid seal. According to the invention, the gasket element (8) comprises a gasket section being arranged slanted with respect to a direction of the axial extension of the insert (7). Furthermore, the invention relates to the insert (7) for the valve arrangement (1). The invention allows to provide a valve arrangement (1) at a low cost since machining effort on the valve housing (2) may be reduced.