What is the principle of run-flat tires for cars?
2 Answers
The principle of run-flat tires for cars: By thickening the tire sidewall, it can still bear the weight of the car after a puncture, allowing the car to continue driving for a certain distance. More information about run-flat tires is as follows: 1. The scientific name of run-flat tires is "puncture-resistant tires", abbreviated as RSC in English. Run-flat tires cannot actually prevent explosions, but because their sidewalls are thicker, they can support the car to drive at speeds below 80km/h for about 100 kilometers after a puncture. 2. Due to the thicker construction of run-flat tires, their weight is also greater than that of ordinary tires. Cars equipped with run-flat tires may have slightly lower ride comfort compared to ordinary cars, and to some extent, they may increase the car's fuel consumption.
The principle of run-flat tires lies in their special design that enhances the sidewall structure of the tire. Having conducted tire testing for many years, I know that regular tires collapse immediately after a blowout, but run-flat tires use harder rubber materials and internal support rings. The thickened and reinforced sidewalls can still bear the vehicle's weight even when the air pressure drops to zero, preventing the rim from contacting the ground and causing damage. This allows the tire to continue driving smoothly for 50 to 100 kilometers after a blowout, giving you enough time to reach a repair shop for inspection. They often work in conjunction with tire pressure monitoring systems, automatically alerting drivers to potential issues. This design originated from the need to improve driving safety, avoiding the dangers of high-speed blowout loss of control or roadside tire changes. Although installation requires special rims, it extends tire life and reduces the probability of sudden accidents. In modern vehicles, many high-end models come standard with these tires, representing a significant advancement in intelligent safety technology.
