Tyre Pressure Limiting Valve for Controlled Deflation
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Solution Overview
Problem
Existing vehicle tire pressure control systems cannot deflate tires due to non-return valves, leading to pressure imbalances caused by temperature changes, which can result in excessive tire wear and fuel consumption.
Innovation Solution
A vehicle tire pressure control system with deflation limiting valves that allow controlled and partial deflation, featuring bidirectional capability based on pressure differential, enabling precise pressure adjustment and preventing excessive pressure drops during air leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-return valves are installed in the hoses to prevent air leakage from tyres, then tyre pressure safety is improved, but the ability to control deflation is lost
Solution Approach 1:
The valve system transitions from a static non-return configuration to a dynamic controlled system. The control box can actively open the deflation valve to allow controlled air release, while the non-return valve provides passive safety. This dynamic control enables the system to adapt between safety mode and pressure adjustment mode based on operational needs.
Solution Approach 2:
The patent introduces a control box as an intermediary device between the air supply system and the tyres. This control box contains both the deflation valve and the non-return valve, mediating the air flow to provide both controlled deflation capability and safety protection against uncontrolled pressure loss.
2Reliability
If non-return valves prevent air exit from tyres, then pressure maintenance is improved, but temperature-induced pressure excess cannot be resolved
Solution Approach 1:
The system uses dynamic valve control to adapt to temperature changes. When temperature increases cause pressure to exceed the preset value, the control box can activate the deflation valve to release excess pressure. The non-return valve remains as a backup safety mechanism, creating a dynamic response to thermal conditions.
Solution Approach 2:
The control box monitors tyre pressure and compares it to the preset value. When pressure exceeds the preset value due to temperature changes, the system receives feedback and can activate the deflation valve to reduce pressure back to the acceptable range, creating a closed-loop control system that adapts to environmental conditions.
3Adaptability or versatility
If controlled deflation is enabled, then pressure adjustment flexibility is improved, but system complexity increases
Solution Approach 1:
The patent combines the deflation valve and the non-return valve within a single control box assembly. This merging of functions into one integrated unit provides controlled deflation capability while maintaining safety features, without requiring separate complex systems for each function.
Solution Approach 2:
The control box serves multiple functions: it acts as the primary control mechanism for pressure adjustment, provides controlled deflation capability, and incorporates the non-return valve as a backup safety feature. This multi-functionality reduces the need for additional separate components and simplifies the overall system architecture.
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
Enables free inflation and controlled deflation, maintaining optimal tire pressure, reducing wear and fuel consumption, and automatically restoring initial pressure after tire replacement.
Implementation Method 1
said non-return capability and said bi-directional capability being conditioned according to a differential between the pressure at its outlet port and the preset inflation pressure supplied from the means for controlling and supplying pressure
Implementation Method 2
the pressure of said tyres increases due to environmental conditions, for example, due to the increase in ambient temperature and its effects according to the Boyle-Mariotte gas law
Data Source
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AI summary
The present invention relates to a vehicle tyre pressure control system, comprising means for controlling and supplying pressure and deflation limiting valves that are in correspondence with each tyre of a vehicle; wherein the means for controlling and supplying pressure is in communication with each tyre, and is also enabled to supply them with a preset inflation pressure; each limiting valve being in turn inserted and installed between the control means and the same tyres; wherein the same limiting valve is enabled to exhibit a conditioned non-return capability, and is also enabled to exhibit a conditioned bi-directional capability, said non-return capability and said bi-directional capability being conditioned according to a differential with the preset inflation pressure supplied from the control means.