The benefits of tires without tires
Currently all cars on the market have used unmanned tires. However, not everyone knows the convenience that treadmill tires can bring.
Invisible tires were invented in 1903, but by 1954, the American automaker Packard, which had ceased production in 1958, had been put into mass production. However, unmanned tires were introduced only to Vietnam about 13 years ago, according to some Camry cars imported into the US and some other "capital" cars.
Tire tires have only started to spread widely in Vietnam in the last 5 years. So far, except for large trucks, there are almost no cars in the line of small cars that use tires with tires. With AutoPro analyzing why tires are not so popular.
Structure
For treaded tires in high operating conditions, the friction of the tire with high heat generation increases. The main reason is that the outer surface of the inner tube touches the inner surface of the tire and creates friction when the vehicle moves and generates heat. Therefore the temperature will increase for both tires and tubes under heavy load and long time.
High temperatures cause aging, reducing the life span of tires. Meanwhile, the tire is not thicker but is a layer of tires should eliminate the element of thermal friction caused by the tube. In addition, the inner side of the tire is covered with a heat-resistant and air-permeable layer which makes the tire unobstructed.
Section profile of tires with tires (left), tires without tires (right)
In cases where the car is operating at high speed or when the car is tilted against the crab, the tire's tread pattern is designed to avoid deformation and will make the car operate more smoothly and more stable.
In addition, tires with tattoos caused by friction between the tires and tubes should cause more energy loss resulting in more fuel consumption. Studies by leading tire companies such as Dunlop and Michelin have shown that treadmills are more fuel-efficient because of a significantly lower rolling resistance and vibration index compared to treaded tires. Treadmill tires are made of a complex structure, while unshielded tires are a unified mass, making them easier to achieve.
The tire's tread profile is less stable and elastic than the tread (top).
To better understand this issue, we had an interview with Mr. Dung, Director of Michelin Ngoc Khanh. Mr. Dung said:
"The difference in the number of revolutions over the same distance of tires with and without tubes is known as baudal. Example: To complete a tire mileage must turn 100 rounds on the theory of completion. But the fact that the tire has a rotary tread only 95 but the meter meter still says the car has completed the right distance. But with tires without tires, the number of turns would be about 98, 99 turns. So, in the same amount of fuel, it leaves the tires without higher efficiency. Particularly in some recent trials in trucks, buses showed that: Unfabricated tire tires save fuel for trucks to 12.73%, buses 16.96% compared to tires with " .
Mr. Dung added: "Tire has two advantages in Vietnam today is: First is the ability to carry heavy. Most of the large trucks in Vietnam are currently using tires with tubes. The regulations in Vietnam on overloading are relatively loose, leading to the fact that most of the large trucks are overloaded. The resulting treadmill tires are the perfect choice for this. A treadmill can carry over the allowed weight up to 4, 5 times. In addition, one more reason is cheaper. "
Safe
Although there are many advantages, the cost of producing a tooth-crowded ring that is slightly better holds the cost of teeth bigger than before.
The most risky cases for tires are mainly nails and pointed objects. For treaded tires the nail becomes very quick; In high speed vehicles, if the tire is particularly dangerous, the nail may be swollen due to the swing between the tire and the tire causing the tires to run out of steam quickly.
In contrast, with unsealed tires, the nails are always tucked in the tire and cause very little vaporization which causes the process to slow down quite slowly enough for a safe driving time to master the situation. In most cases, the driver can also drive the glued tire to the tire.
Note: When uncovered tires are not stuck, do not remove nails; Leave and walk normally to the nearest place where you can patch the tire. Treadless tires can operate at much lower vapor pressure than a treadmill and will not experience tire treads as in treaded tires.
Xe360.vn (source autopro)
