Pressure Governor With Separate Non-Coaxial Valves
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Solution Overview
Problem
Existing pressure governors face challenges in accurately determining and adjusting the releasing and introducing pressures due to complex coaxial valve structures, leading to increased production costs and reduced yield.
Innovation Solution
A pressure governor design featuring separate first and second valves in distinct chambers, with each valve having a normally closed structure, allowing for independent adjustment and simplification of the valve structure, eliminating the need for coaxial formation and reducing production complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coaxial valve structure is used to determine releasing and introducing pressures, then the pressure control function is achieved, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent divides the single coaxial valve structure into two separate non-coaxial valves (first valve and second valve) positioned at different locations. Each valve independently determines one pressure threshold (introducing pressure or releasing pressure), eliminating the need for complex coaxial alignment while maintaining the pressure control function.
Solution Approach 2:
The patent transitions from a one-dimensional coaxial arrangement (valves aligned on the same axis) to a two-dimensional or three-dimensional non-coaxial arrangement. The first and second valves are positioned at different spatial locations, allowing independent adjustment and simplifying manufacturing by eliminating precise axial alignment requirements.
2Reliability
If a coaxial valve structure is used, then pressure control is achieved, but production yield decreases
Solution Approach 1:
By segmenting the pressure control function into two independent non-coaxial valves, the patent eliminates the need for complex coaxial assembly procedures. This reduces assembly difficulty and increases production yield, as each valve can be independently manufactured and positioned without requiring precise axial alignment.
3Ease of manufacture
If separate non-coaxial valves are used, then manufacturing complexity is reduced, but valve structure completeness may be compromised
Solution Approach 1:
The patent combines the functions of two separate non-coaxial valves into a single integrated pressure governor body. Both valves share common components such as the piston, spring chamber, and housing, creating a unified structure that is simpler to manufacture than two separate coaxial valves while maintaining complete pressure control functionality.
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 enables precise determination and adjustment of pressures, improving production yield and reducing costs by simplifying the structure and allowing for easier fabrication and post-production adjustments.
Implementation Method 1
The governor piston 122 receives the biasing force from a compression spring 121 at one axial end and the pressure of compressed air from the air tank at the other axial end
Implementation Method 2
When the air pressure in the air tank increases, and the force exerted by the pressure acting on the governor piston 122 exceeds the biasing force from the compression spring 121, the governor piston 122 is moved in a direction to compress the compression spring 121
Data Source
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AI summary
[Abstract] An object is to provide a pressure governor, in which both the releasing pressure and the introducing pressure can be easily determined with high accuracy, and which has a simple structure to contribute to cost reduction. For accomplishing the object, a pressure governor 4 includes a first valve 11 that determines the introducing pressure and a second valve 12 that determines the releasing pressure. A first valve receiving chamber 10a in which the first valve 11 is received and a second valve receiving chamber 10b in which the second valve 12 is received are formed independently from each other. Thus, there is no need to form the valves coaxially, and each valve can be easily fabricated with high accuracy by simple processing.