Segmented Gas Joint Layout for Flexible Port Spacing
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Solution Overview
Problem
Existing fluid control device joints are difficult to modify in size due to the fixed arrangement of ports on a single block, requiring changes in passage angles and redesign of V-shaped passages to adjust distances between ports.
Innovation Solution
A joint comprising a first block, a second block, and a single pipe section connecting them, with first and second gas passages allowing for adjustable port communication, enabling easy modification of gas line configurations by adjusting the length of the single pipe section and manufacturing the second block with orthogonal and inclined passages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single block structure with fixed ports is used, then the joint structure is simple, but it is difficult to change the size and port distances when modifying gas lines
Solution Approach 1:
The joint is divided into a first block and a second block connected by a pipe section, separating the previously integrated single block structure. This segmentation allows independent modification of each block and the connecting pipe, enabling size changes without redesigning the entire joint structure.
Solution Approach 2:
The pipe section connecting the first and second blocks can be adjusted in length, providing dynamic adaptability to change the distance between ports. This allows the joint size to be modified by simply adjusting the pipe section length rather than redesigning the entire structure.
2Adaptability or versatility
If V-shaped passages are used to connect ports, then the gas flow path is efficient, but changing port distances requires redesigning the passages
Solution Approach 1:
The gas passage system is segmented into passages within the first block, passages within the second block, and the pipe section connecting them. This allows the pipe section to be independently adjusted in length without affecting the internal passage designs of the blocks, eliminating the need to redesign V-shaped passages when changing port distances.
Solution Approach 2:
The pipe section acts as an intermediary element between the first and second blocks, providing a flexible connection that can be adjusted in length. This intermediary allows port distances to be changed without requiring modifications to the internal passages of the blocks themselves.
3Adaptability or versatility
If all ports are arranged on the top surface, then the joint structure is compact, but it is not easy to accommodate changes in mass flow controller size
Solution Approach 1:
The joint is segmented into two blocks with ports distributed across different surfaces. The first block has its ports on its top surface, while the second block has its ports on its top surface and side surfaces. This segmentation allows ports to be arranged in three-dimensional space rather than confined to a single top surface, accommodating changes in mass flow controller size without requiring excessive top surface area.
Solution Approach 2:
Ports are arranged not only on the top surfaces of blocks but also on side surfaces of the second block. This three-dimensional port arrangement utilizes vertical and lateral dimensions, allowing flexible accommodation of different mass flow controller sizes without requiring all ports to be on the top surface.
Data Source
AI summary
A joint includes a first block, a second block, and a single pipe section connecting the first block and the second block. The first block, the second block, and the single pipe have a first gas passage and a second gas passage inside therein. The first gas passage is formed so that a first port which opens at an outer surface of the first block, the single pipe section, and a second port which opens at an outer surface of the second block communicate with each other. The second gas passage is formed so that a third port and a fourth port which open at the outer surface of the second block communicate with each other. The second port is disposed between the third port and the fourth port.