Multi-Plate Valve Vent Hole Alignment for Gas Flow Resistance
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Solution Overview
Problem
Existing gas valves experience significant flow rate reduction due to high flow path resistance caused by small vent hole areas and long flow paths, leading to inefficient gas direction in one direction.
Innovation Solution
A valve design featuring a first plate, a side wall plate, and a second plate with strategically aligned and sized vent holes, where the third plate has vent holes that do not oppose the second vent holes, reducing flow path resistance by increasing the total area and shortening the flow path length, while maintaining manufacturing tolerance considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the vent hole area is increased, then the flow path resistance decreases, but the valve structure complexity increases due to multiple plates and vent holes
Solution Approach 1:
The valve body is divided into multiple plates (first plate, second plate, third plate) with vent holes distributed across different surfaces. This segmentation allows the total vent hole area to be increased while distributing the structural complexity across separate components, making the design more manageable and manufacturable.
Solution Approach 2:
Vent holes are arranged in three-dimensional space across multiple plates rather than being confined to a single plane. The third plate has vent holes that do not oppose the second vent holes, creating a staggered three-dimensional arrangement that increases effective flow area while managing structural complexity through spatial distribution.
2Productivity
If the flow path length is shortened, then the flow rate increases, but the valve structural integrity may be compromised
Solution Approach 1:
The flow path is segmented into multiple short sections through the distributed vent holes in different plates, replacing a single long flow path with multiple shorter paths. This maintains structural integrity by keeping each plate relatively thin while achieving the equivalent of a longer total flow area.
Solution Approach 2:
The flow path transitions from a two-dimensional planar arrangement to a three-dimensional distributed arrangement across multiple plates. By stacking plates with offset vent holes, the flow path length is effectively reduced in the vertical direction while maintaining overall structural integrity through the layered construction.
3Area of stationary object
If the vent holes are positioned to overlap in plan view, then the flow area increases, but the manufacturing precision requirements increase
Solution Approach 1:
The third plate is designed with vent holes that do not oppose the second vent holes when viewed in plan, creating an asymmetric staggered arrangement. This asymmetric positioning allows the vent holes to be offset from each other, increasing the effective flow area while reducing the need for precise alignment between corresponding holes in different plates.
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 valve effectively directs gas flow in one direction with minimal resistance, maintaining a high flow rate by optimizing vent hole alignment and size, thus enhancing gas passage efficiency.
Implementation Method 1
a flow of gas from a first direction to a second direction different from the first direction
Data Source
AI summary
A valve includes a first plate, a side wall plate, a second plate, and a third plate. The first plate has a plurality of first vent holes. The second plate constitutes a valve chamber along with the first plate and the side wall plate. The second plate includes a second principal surface opposing a first principal surface of the first plate. The second plate has a plurality of second vent holes. The third plate has a plurality of third vent holes. The plurality of third vent holes overlaps with the plurality of first vent holes without overlapping with the plurality of second vent holes in a plan view in a direction in which the first plate and the second plate oppose each other. Both principal surfaces of the third plate oppose the first principal surface and the second principal surface. The third plate is disposed in the valve chamber.