What's the mix in the bus tires?
4. reduce fuel consumption and protect the environment. Insufficient tire pressure and heated rolling force will cause the increase of Yin, the car at the time of increased fuel consumption; and nitrogen addition can maintain the stability of the tire pressure, tire pressure to reduce the delay, the dry and no oil is not moisture, low thermal conductivity, slow heating characteristics, improve the temperature reduced tire when walking well, small deformation grip raise, lower rolling resistance, so as to achieve the purpose of reducing fuel consumption. In the United States, a comparison experiment of tire filling with nitrogen and air was carried out. After the experiment, the statistical results showed that more than 26% of the mileage of the air filled tire was filled with nitrogen. The nitrogen filled tire can be inflated according to the designed tire pressure, and the fuel consumption index can be reached when the automobile is designed. The experiments proved that the nitrogen filled tire was more fuel-efficient than the air filled tire 2-10%. Effectively reduce air pollution. Brazilian practice, nitrogen gas filled fifty thousand kilometers, still do not need air. Nitrogen tires are more resistant to wear than air tires, and the average mileage of a nitrogen filled tire is 48% more than that of an air filled tire before the tread loss index is reached
2. prevent tire burst and air shortage. Tire blowout is the number one killer in highway traffic accidents. According to statistics, 46% of the traffic accidents in the expressway are caused by tire failures. Among them, a flat tire accounts for 70% of the total tire accidents. When the car is running, the tire temperature will rise due to friction with the ground, especially in high speed and emergency braking, the gas temperature will rise rapidly, tire pressure surge, so there will be a possibility of a flat tire. But the high temperature causes the tire rubber aging, the fatigue strength drops, the tread wear is fierce, is also the important factor which possibly the tire burst. Compared with the general high pressure air, high purity nitrogen for anaerobic and almost free of moisture without oil, its low thermal expansion coefficient, low thermal conductivity, slow heating, reducing the tire heat accumulation rate, but also can not help but not other characteristics, so it can greatly reduce the chance of puncture.
Ordinary compressed air. But there are many high altitude buses that are full of nitrogen. The reasons are as follows.Car tires with nitrogen can prevent puncture1., to improve the stability and comfort of tire travel. Nitrogen is almost inert diatomic gas, chemical inertness, gas molecules than oxygen molecules, not easy to thermal expansion and contraction, deformation of small amplitude, the penetration of tire wall speed more slowly than air is about 30~40%, can maintain stable tire pressure, improve the stability of running, ensure the driving comfort; nitrogen the audio is equivalent to the ordinary air conductivity is low, the 1/5, the use of nitrogen can effectively reduce tire noise, improve the degree of quiet running.
