Heavy-Duty Tire Buttress Cooling With Air-Guiding Recess Slopes
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Solution Overview
Problem
Heavy duty tires face increased heat generation due to larger loads, which demands improved cooling capabilities beyond what existing recess portions in the buttress portion can provide.
Innovation Solution
The design incorporates air-cooling portions in the buttress portion with recesses and air entry/exit promotion portions, where the average incline angle of the slopes is no greater than 45°, facilitating effective airflow and cooling by ensuring easy redirection and distribution of air within the recesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the average incline angle of the slope is greater than 45°, then the structure can be more compact, but it becomes difficult to redirect air flowing along the tire surface to follow the slope
Solution Approach 1:
The patent optimizes the incline angle parameter of the slope to be 45° or less, transforming the geometric parameter to achieve the optimal balance between compact structure and airflow redirection capability. This parameter optimization enables air to easily follow the slope while maintaining structural efficiency.
2Force
If larger loads are applied to increase load bearing capability, then the tire can handle heavier vehicles, but greater distortion occurs causing increased heat generation in the buttress portion
Solution Approach 1:
The patent converts the harmful heat generated by buttress distortion under heavy loads into a beneficial cooling effect by designing air-cooling portions that channel air flow through the buttress region. The distortion-induced heat generation is counteracted by the engineered air cooling system, transforming the thermal problem into a controlled cooling mechanism.
Solution Approach 2:
The patent employs pneumatic cooling by introducing air flow through specifically designed air-cooling portions and slopes in the buttress region. This pneumatic system uses air circulation to remove heat generated during heavy load operation, applying fluid dynamics principles to thermal management.
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 configuration enhances the cooling capability of the buttress portion, effectively managing heat generated during load-bearing operations by promoting efficient airflow and heat dissipation.
Implementation Method 1
air flows into the recess portions and cools the buttress portion
Implementation Method 2
cooling capability of the buttress portion
Data Source
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AI summary
A heavy duty tire includes a recess portion that is formed in a buttress portion and that opens toward a tire outside, and a first air entry and exit promotion portions, each of which is linked to a side portion of the recess portion, that is open toward the tire outside, and that includes a slope from a surface of the tire toward a bottom portion of the recess portion, such that a depth dimension from the tire surface gradually increases. An average incline angle of the slope with respect to the tire surface is no greater than 45°, and air entry and exit promotion portions are disposed at two or more locations.