Automatic Pressure Valve Plunger Stability
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Solution Overview
Problem
Existing pneumatic pressure control systems for vehicle tires suffer from instability in mechanical elements during inflation and deflation, leading to delayed processes and potential failures due to susceptibility to pressure differences between air supply and outlet paths.
Innovation Solution
An automatic pressure valve with a single movable plunger and internal stepped channel, featuring a spring-arranged inflation plunger and deformable seals, which dampens pressure differences and ensures stable air passage or blockage for efficient inflation and deflation operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple independent mechanical elements are used in the valve, then the valve can perform inflation and deflation operations, but the mechanical elements become unstable and susceptible to pressure differences between air supply and outlet paths
Solution Approach 1:
The patent combines multiple independent mechanical elements (plunger, seals, spring) into a single integrated movable plunger assembly. This unified structure moves as one unit, eliminating the instability caused by independent elements reacting differently to pressure differences. The merged design ensures all components respond uniformly to pressure changes, resolving the reliability issue while maintaining operational capability.
Solution Approach 2:
The patent introduces a deformable seal as an intermediary element between the plunger and the valve body. This seal absorbs and dampens the effects of pressure differences between air supply and outlet paths, protecting the mechanical elements from direct exposure to unstable pressure conditions. The deformable nature of the seal allows it to adapt to pressure variations while maintaining sealing effectiveness.
2Reliability
If a single movable plunger with spring-arranged inflation plunger is used, then stability and repeatability are enhanced, but the device complexity increases
Solution Approach 1:
The patent employs a dynamic spring-arranged inflation plunger that automatically adjusts its position and sealing force in response to pressure differences. This dynamic mechanism provides stability and repeatability without requiring complex external control systems. The spring-loaded design allows the inflation plunger to self-regulate, maintaining reliable operation while keeping the overall structure relatively simple.
3Reliability
If deformable seals are used to dampen pressure differences, then mechanical stability improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes the deformable seal's ability to change its physical parameters (shape, volume, stiffness) in response to pressure variations. By selecting appropriate material properties and geometric parameters for the seal, the system achieves mechanical stability without requiring extremely tight manufacturing tolerances. The seal's deformation characteristics are designed to compensate for normal manufacturing variations.
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 solution provides enhanced stability and repeatability in pneumatic operations, allowing faster and more practical inflation and deflation, reducing the likelihood of failures and ensuring continuous vehicle operation across varying conditions.
Implementation Method 1
a spring (120) arranged on a seat (121) defined in a portion of the inner stepped channel (117)
Implementation Method 2
an outer face (135) in contact with the closing lid (111), and an inner face (136) that is provided with a deformable sealing ring (137)
Data Source
Figure 1
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AI summary
An Automatic pressure valve for the inflation - deflation of pneumatic arrangements comprises a main body (102) with an inlet connector (103) communicated with a pressurized air supply network an outlet connector connected to a pneumatic arrangement and a mechanical means which allows for a total or partial air passage or blockage to perform inflation - deflation operations of the pneumatic arrangement in a faster and practical way. The mechanical means comprises a main movable plunger (116) having an inner stepped through channel (117), a spring (120) arranged on a seat (121) defined in the inner stepped channel (117), an inflation plunger (122) operatively retained by said spring (120), a proximal movable end (126) within a first inner chamber (105), a reduced middle section (119), and a distal movable end (128) having a smaller diameter than the proximal end (126) and arranged within a second inner chamber (106).