Activated Carbon Wheel Assembly for Tire Pressure-Comfort Balance
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Solution Overview
Problem
Existing vehicle wheel assemblies do not effectively manage air pressure within the tire, leading to suboptimal handling, stability, and ride comfort, especially under varying load conditions.
Innovation Solution
Incorporating activated carbon with a porous surface into the wheel assembly, specifically within the tire cavity or wheel barrel, to adsorb and compact air molecules, thereby increasing the effective air volume and reducing tire stiffness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air pressure within the tire is increased to improve handling and stability, then handling and stability are improved, but ride stiffness increases and ride comfort deteriorates
Solution Approach 1:
The patent applies porous activated carbon material within the tire air cavity to create an adsorption-based pressure regulation system. The porous structure provides large surface area for adsorbing air molecules, enabling the system to dynamically adjust effective air pressure while maintaining comfort. This resolves the contradiction by decoupling the direct relationship between air pressure and ride characteristics.
Solution Approach 2:
The patent changes the physical-chemical parameters of the air cavity by introducing activated carbon with specific surface area and pore structure. This transforms the air pressure regulation from a simple mechanical system to a chemically-active system that can dynamically adjust parameters, allowing simultaneous optimization of handling (through effective pressure control) and comfort (through buffered pressure changes).
2Ease of operation
If activated carbon is introduced to adsorb air molecules and increase effective air volume, then ride comfort is improved, but the device complexity increases
Solution Approach 1:
The patent merges the activated carbon integration directly into the existing wheel-tire assembly structure. The carbon is positioned within the air cavity and secured using existing wheel components (such as the inner rim or spoke structures), eliminating the need for separate complex mounting systems. This resolves the contradiction by incorporating the comfort-enhancing feature into the existing structural framework.
Solution Approach 2:
The activated carbon performs its air molecule adsorption function autonomously based on its inherent physical-chemical properties. Once installed, the carbon automatically regulates air pressure dynamics without requiring external control systems, sensors, or active components. This self-service capability reduces device complexity while maintaining the ride comfort benefit.
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 use of activated carbon in the wheel assembly enhances ride comfort and handling by increasing the effective air volume within the tire, reducing vertical stiffness, and minimizing tire cavity noise, even under increased air pressure.
Implementation Method 1
activated carbon including a porous surface configured to adsorb and compact air molecules present within the cavity
Data Source
AI summary
A wheel assembly including: a wheel; a tire mounted to the wheel, the tire defining a cavity between an inner surface of the tire and the wheel; and activated carbon exposed to air molecules within the cavity, the activated carbon including a porous surface configured to adsorb and compact air molecules present within the cavity.