Nitrous oxide, also known as nitrous oxide.
Nitrous oxide engine
The full name of NOS is nitrous oxide system, that is, nitrogen acceleration system. It is a product developed and produced by American Huali Company. In today's world racing, in order to greatly improve the engine horsepower in an instant, the liquid nitrogen oxide system used is NOS. In fact, as early as World War II, the German Air Force began to use NOS, and it was gradually used for linear acceleration after the war.
The working principle of NOS is to turn nitrous oxide (N2O), commonly known as nitrous oxide, into a liquid state under high pressure, and then put it into a steel cylinder, and then mix it with fuel as a combustion-supporting agent in the engine (oxygen and nitrogen can be released, among which oxygen is the key combustion-supporting gas, and nitrogen can help cool down), thus increasing the completeness of fuel combustion and improving horsepower. Because NOS provides additional combustion-supporting capacity (a lot of oxygen), it is necessary to increase the fuel injection after installing NOS. "If a horse wants to run, it must eat more grass." Fuel is the grass of the engine and the power of the engine is further improved. NOS, like turbocharging and mechanical supercharging, aims to increase the oxygen content in the engine mixture, improve the combustion efficiency and increase the horsepower. The difference is that NOS directly uses oxides, and the latter two achieve their goals by increasing air density through external force. Maybe someone will ask why nitrous oxide is directly used instead of oxygen. That's because it is difficult to control the stability of the engine (high temperature and explosive force) with oxygen, so oxygen is rarely used directly.
The service time of NOS system cannot exceed 10S. It seems that no engine can withstand NOS injection above 1min at present. ...
There is a funny gas. It is one of the relatives of nitrogen, called N2O, nicknamed "nitrous oxide".
1772, British chemist priestley discovered a gas. After preparing a bottle of gas, he threw in a burning charcoal, which burned brighter than in the air. He regarded it as "oxygen" at that time, because oxygen is combustion-supporting. However, this gas has a slightly "pleasant" sweetness, which is different from odorless and tasteless oxygen; It is also soluble in water, which is much more soluble than oxygen. What it is has become a mystery to be solved.
Twenty-six years later, on 1798, a young experimenter came to priestley laboratory. His name is David. David has the courage to be loyal to his duties. Every gas he prepared should be "smelled" by himself to understand its physiological effects on people. When David took a few sips of this gas, a strange phenomenon happened: he couldn't help laughing and dancing in the laboratory, and it took a long time to calm down. Therefore, this gas is called "laughing gas".
David found that "laughing gas" was narcotic, and afterwards he wrote down his feelings: "I was not in a coke dream, but was dominated by ecstasy; There is no shameful fire burning in my heart, but my cheeks are as red as roses. My eyes are full of shining light, my mouth is mumbling, and my limbs are at a loss, as if there is a new power attached to my body. "
Soon, David, who was famous for his boldness, was in great pain after pulling out his dental caries. He thought of exciting laughing gas and took a few sips. Sure enough, he felt the pain relieved and his expression suddenly brightened up.
Why does nitrous oxide have these characteristics? It turns out that it can anesthetize brain nerve cells. However, a large amount of inhalation will cause people to suffocate due to lack of oxygen.
1844 65438+February 10, a unique comedy performance conference was held in Hartford, USA. $0.25 per ticket. There are eight big names lined up in front of the stage, specially invited to deal with the possible accidents of people who voluntarily inhale nitrous oxide.
A drugstore clerk named Cooley stepped onto the stage and volunteered to be the experimental subject of inhaling nitrous oxide. When Cooley inhaled nitrous oxide, he gave a cheerful laugh. Because the dosage of nitrous oxide was not well controlled, he lost his self-control ability for a while, laughing and shouting, and rushed to the crowd, even without finding the chair in front. Cooley tripped over the chair and his thigh was bleeding. When he fainted for a while and woke up, there was no pain. Someone asked him if he was in pain. He shook his head, stood up and left.
Cooley's every move caught the attention of the dentist Wells. Cooley fell, he thought. Why can't he feel pain? Does nitrous oxide have an anesthetic effect? At that time, there was no anesthetic, and the patient's tooth extraction was almost as painful as being tortured. So he decided to do the experiment by himself.
One day, Wells asked his assistant to prepare surgical instruments for tooth extraction, then inhaled "laughing gas" and sat in the operating chair, asking the assistant to pull out one of his teeth. Wells didn't feel any pain when he pulled out his tooth. As a result, nitrous oxide quickly entered the hospital as an anesthetic and was used for a long time.