Tire Cavity Cold Spot for Internal Pressure Stability
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Solution Overview
Problem
Conventional rolling assemblies face challenges in controlling internal pressure due to humidity in the gas-filled cavity, leading to excessive pressure increases, which existing solutions fail to address effectively without significant adaptation to the assembly.
Innovation Solution
A device with a cold spot in the inner cavity to condense vapor into liquid, accompanied by a storage mean to capture and keep the condensed vapor, potentially using thermoelectric coolers and heat exchanging means, allowing for minor or no adaptation to the conventional rolling assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cold spot is added to condense vapor, then internal pressure control is improved, but device complexity increases
Solution Approach 1:
The cold spot utilizes the rotational motion of the rolling assembly itself to generate centrifugal force for vapor separation and condensation, without requiring external power sources or complex control systems. The system serves itself by using its own motion to achieve the desired function.
Solution Approach 2:
The harmful vapor component is extracted from the gas mixture in the inner cavity through the cold spot, where it condenses and is separated from the main gas phase. This removes the problematic element while preserving the functional gas.
2Reliability
If humidity elimination is attempted during assembly preparation, then internal pressure stability is improved, but effectiveness and efficiency are insufficient
Solution Approach 1:
Instead of attempting to eliminate humidity during assembly preparation, the system performs preliminary condensation of vapor during normal operation through the cold spot. The humidity removal action is delayed until it is more effectively achieved during operational conditions.
Solution Approach 2:
The system changes the temperature parameter locally at the cold spot to induce condensation of vapor. By creating a localized cold region, the vapor transitions from gas to liquid phase, dramatically improving humidity elimination efficiency during operation.
3Ease of manufacture
If conventional rolling assembly is used without adaptation, then ease of manufacture is maintained, but humidity control capability is lacking
Solution Approach 1:
The humidity control function is segmented into a separate, modular cold spot component that can be independently manufactured and then integrated into the conventional rolling assembly. This maintains ease of manufacture for both the base assembly and the added 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
Effectively prevents excessive internal pressure increases by condensing vapor into liquid, collecting it via centrifugation, and storing it, thereby maintaining optimal tire performance without requiring substantial modifications to the rolling assembly.
Implementation Method 1
a cold spot placed in the inner cavity for condensing vapor contained in a gas filled in the inner cavity
Implementation Method 2
condensed vapor is collected to the storage mean via centrifugation
Data Source
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AI summary
Present invention provides a device for preventing excessive increase of an internal pressure of a rolling assembly, the rolling assembly having a rotation axis and comprising a wheel and a tire, the tire being mounted onto the wheel creating an inner cavity surrounded by a wheel internal surface and a tire internal surface, the device comprising a cold spot placed in the inner cavity of the rolling assembly for condensing vapor contained in a gas filled in the inner cavity, the device comprises a storage mean for capturing and keeping condensed vapor.