Integrated Filter Sealing in Fluid Device Joints
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Solution Overview
Problem
In fluid systems, such as chemical liquid supply systems, the use of independent filters increases system size and costs due to the need for dedicated installation space and assembly replacement, and there is a risk of leakage at connecting portions.
Innovation Solution
A connecting structure where a filter is integrally attached between a fluid device and a joint, utilizing an annular groove and projection for sealing, allowing the filter to be sealed between the device and joint, reducing the need for dedicated installation space and simplifying replacement, while maintaining effective sealing properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is disposed as an independent device in a fluid supply system, then the filtering function is provided, but the system size is increased and assembly replacement is required
Solution Approach 1:
The filter element is integrated into the connecting structure between the fluid device and the joint, merging the filtering function with the connection function. This eliminates the need for a separate filter housing and reduces overall system size while maintaining effective filtering capability.
Solution Approach 2:
The connecting structure serves multiple functions: it provides mechanical connection between components, ensures sealing through the annular groove and projection, and incorporates filtering capability through the integrated filter element. This multi-functionality reduces the number of separate components needed.
2Reliability
If a filter is disposed as an independent device, then filtering is achieved, but assembly replacement is required influencing running cost
Solution Approach 1:
The filter element is designed as a separate, replaceable component within the connecting structure, allowing it to be independently replaced without replacing the entire connecting assembly. This segmentation reduces maintenance costs while maintaining filtering reliability.
3Reliability
If an annular projection is press inserted into an annular groove for sealing, then sealing is achieved, but deformation may occur
Solution Approach 1:
The annular projection and groove are designed with specific dimensional relationships where the fastening distance on the inner peripheral face is larger than on the outer peripheral face. This creates different local deformation characteristics, allowing effective sealing while minimizing overall structural deformation and maintaining integrity.
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 configuration reduces system size, lowers replacement costs, and minimizes leakage risks by integrating the filter within the connecting structure, ensuring a durable and versatile sealing solution.
Implementation Method 1
an annular projection 7 and an annular groove 6 which are fitted to each other to constitute a sealing portion Sm
Implementation Method 2
an inner peripheral face 7A of the annular projection 7 and an outer peripheral face 6A of the annular groove 6, and an outer peripheral face 7B of the annular projection 7 and an inner peripheral face 6B of the annular groove 6 are tight-fitted to each other
Implementation Method 3
said filter 5 is configured as a ring like member being fitted to the inner fitting portion 16 and press-contacted and clamped between an annular end wall 21 formed in said peripheral portion 3 and an annular end wall 17 formed in said joint T
Data Source
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AI summary
The connecting structure between a fluid device and a joint according to the invention is a connecting structure between a fluid device and a joint in which a peripheral portion 3 of a fluid supply/discharge passage 1 in a fluid device P, and a fluid joint T are fittingly coupled to each other, whereby the fluid supply/discharge passage 1 and a passage 4 formed in the joint T are communicatingly connected to each other, wherein a functional component 5 which allows a fluid flowing between the fluid device P and the joint T to pass through the functional component, and which exerts an action on the fluid is interposed between the peripheral portion 3 and the joint T in a state where the functional component is sealed both by the peripheral portion 3 and the joint T, and an annular groove 6 and annular projection 7 which are fitted to each other to constitute a sealing portion Sm in a state where the fluid device P and the joint T are fittingly coupled to each other are formed in the fluid device P and the joint T, respectively.