| 摘要 |
A self-inflating inner tube with a non-elastic band that encircles the defining perimeter of the inner tube. The band limits the expansion of the inner tube within the tire -rim chamber and creates a low pressure zone along the length of the chamber where a pumping mechanism is placed. As the wheel rotates the pumping mechanism collapses between the inner tube and tire thereby pushing air along its length. The compressed air is used to inflate the inner tube and maintain proper tire pressure. |
