Pressure Reducing Valve Layout for Compact Coplanar Channels
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Solution Overview
Problem
The existing pressure reducing valves for hydrogen gas in fuel cell vehicles have a complex channel arrangement that results in a large housing size and increased processing time and costs due to orthogonal channel orientations, necessitating thick walls and lengthy processing hours.
Innovation Solution
The pressure reducing valve design simplifies the arrangement of the delivery, output, and auxiliary channels by aligning their centerlines in the same plane, reducing the need for thick housing walls and allowing for more efficient processing by enabling the formation of channels in a single plane, thereby downsizing the valve and reducing processing time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the delivery channel, output channel, and auxiliary channel are arranged orthogonal to one another, then the channels can be clearly separated and functionally distinct, but the housing size increases and processing time increases
Solution Approach 1:
The patent transitions from a three-dimensional orthogonal arrangement of channels to a two-dimensional coplanar arrangement. All channel centerlines (delivery, output, and auxiliary) are positioned in the same plane, eliminating the need for thick housing walls that would be required to separate orthogonal channels, thereby reducing housing volume while maintaining functional separation
2Reliability
If the delivery channel, output channel, and auxiliary channel are arranged orthogonal to one another, then the channels can be clearly separated and functionally distinct, but the processing time increases
Solution Approach 1:
By arranging all channel centerlines in the same plane rather than in three-dimensional orthogonal space, the patent enables channels to be formed in a single processing operation without requiring multiple positioning and processing steps, thereby reducing processing time while maintaining clear functional separation between channels
3Volume of stationary object
If the centerlines of the delivery channel, output channel, and auxiliary channel are arranged in the same plane, then the housing size is reduced and processing time is reduced, but the channel arrangement becomes more complex
Solution Approach 1:
The patent segments the channel system into distinct functional channels (delivery, output, auxiliary) that all lie in the same plane. This segmentation allows each channel to be clearly defined and processed independently while maintaining a simplified two-dimensional overall structure, reducing housing size without creating excessive complexity
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 design achieves a downsized pressure reducing valve with reduced processing man-hours and costs, while maintaining effective pressure regulation and leakage checking functionality.
Implementation Method 1
a valve mechanism which is provided inside the pressure reducing chamber connected to the delivery channel and of which the amount of opening is changed to regulate the pressure inside the pressure reducing chamber
Data Source
AI summary
A pressure reducing valve includes: a housing having an input port, an input channel connected to the input port, a pressure reducing chamber connected to the input channel, a delivery channel connected to the pressure reducing chamber, an output channel and an auxiliary channel branched off from the delivery channel, an output port connected to the output channel, and an auxiliary port connected to the auxiliary channel; and a valve mechanism which is provided inside the pressure reducing chamber connected to the delivery channel and of which the amount of opening is changed to regulate the pressure inside the pressure reducing chamber. Centerlines of the delivery channel, the output channel, and the auxiliary channel are arranged in the same plane.