What is the working principle of run-flat tires?
1 Answers
Run-flat tires work by utilizing sturdy sidewalls to provide support. Inside the tire, there is a device called a support ring, which can support the tire from the inside, preventing it from being crushed and also stopping the tire from detaching from the wheel rim. Run-flat tires are designed to continue functioning even after a puncture, and they are marked with the RSC (Run-Flat System Component) symbol on the sidewall. Structurally, run-flat tires are not significantly different from regular tires, except for the reinforced design on the sidewall. This reinforcement allows the tire to continue supporting the vehicle's weight and maintain driving even when it loses air pressure suddenly. The main difference between run-flat tires and traditional regular tires lies in the thicker and more robust tread design of run-flat tires, along with their stronger sidewalls that resist deformation. In the event of a puncture or sudden loss of pressure, the vehicle can still travel up to 250 kilometers at a speed of 80 kilometers per hour. The sturdy sidewalls ensure that the tire and wheel rim do not deform, keeping the vehicle's center of gravity stable and enhancing driving safety.