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International Journal of Automotive Technology > Volume 18(6); 2017 > Article
International Journal of Automotive Technology 2017;18(6): 973-981.
doi: https://doi.org/10.1007/s12239-017-0095-4
DEVELOPMENT OF A VALVE AND OPTIMIZATION OF A TUBE FOR SELF-INFLATING TIRE
Myeong Jun Kim1, Tae Won Park1, In Kyeong Hwang1, In Chul Sung4, Hyoung Seok Kim4, Sang Do Na4, Sung Pil Jung7, Tae Hee Lee7, Kyung Up Mah9, Jae Yun Lee10
1Ajou University
4KUMHO Tire
7KATECH
9Youil
10Corechips
ABSTRACT
Worldwide, the tire market requires safe and eco-friendly tires. In this study, a self-inflating tire (SIT) was studied and manufactured. Self-inflating tire refers to a technique for maintaining appropriate tire pressure. An internal regulator senses when tire inflation pressure has dropped below the set air pressure. The tire boosts air through the valve when rolling and compressed air enters into the tire. This procedure keeps the tire air pressure at an appropriate level and increases tire safety. In this study, a regulator was used as a negative-pressure system. A check valve was selected the minute flow check valve depending on the shape of the configured system. In addition, the material of the tube was developed with excellent physical properties and resistances (elastic rebound, working temperature, etc.) owing to its complete compression and restoration. A tube performance tester was developed and a computer aided engineering (CAE) model was modeled for comparison with the test results. Using the tester and model, it was possible to optimize the shape of the tube and regulator. Finally, the reliability of the study was verified through the prototype test. The developed equipment and systems can be used for the manufacture of high-performance and safe tires.
Key Words: UHP (Ultra-High-Performance) tire, Self inflating, Safety, Eco-friendly tire, FSI (Fluid-Structure Interaction)
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