Rising: Ten Thousand Years Chapter 191: : Who told me

Liu Jinghong was about to go crazy, and urgently asked: "Why? Why is it unrealistic?"

Li Zhen pointed to the motor and said, "The power is too small."

"This speed is already super high, how can the power be low?"

Li Zhen said with a smile: "Synchronous motors have a common problem. The speed is high, and the torque is too small. It can't be reflected with this small propeller. Go and change it to a 40 cm long propeller. "

Immediately someone went looking for it.

Propellers are now the standard equipment of aviation institutes. Once the industry appears, propeller processing is too easy. And the Aeronautical Academy is full of propellers, and everyone is working on them, in all sizes.

Soon, someone installed a forty-centimeter-long propeller on the motor.

Liu Jinghong and the others were silent, they seemed to have seen the result.

"Take the call." Li Zhen nodded.

'Zi Zi Zi'

When the electricity was connected, a sharp sound suddenly came from inside the motor. The propeller vibrated twice, but did not turn.

After a while, I saw green smoke rising from the motor. There was a continuous sound of 'Zizizi' inside. But the propeller just vibrates and doesn't turn at all.

Li Zhen asked someone to turn off the electricity, and said: "Torque is the most important thing in an engine besides the speed. Obviously, this electric motor can't even drive a 40 cm long propeller, which has already explained the problem. .Synchronous motors cannot be used in airship engines.”

Liu Jinghong said somewhat unwillingly: "Mr. Li, but...maybe it's because this synchronous motor is relatively small. The power will increase with its internal structure. We will make a motor that is bigger than the current one in two days. This motor, a motor that is ten or twenty times larger, will definitely increase its torque exponentially at that time, and its speed will also increase by ten or twenty times."

Li Zhen laughed: "Let's not talk about whether the synchronous motor will increase its power as its size increases. You can talk to people from the Electromagnetic Institute about this. According to your thinking, remind you that the torque and power will be ten times larger. It is also ten times larger, so did I say that energy is conserved? Then, will the power consumption be increased by ten times?"

"Amount... this..."

Liu Jinghong was speechless.

Li Zhen took a stern look at Liu Jinghong, and said seriously: "The most terrifying thing in science is laymen giving advice to professionals. The people in the Aeronautical Research Institute all learn the knowledge of aeronautics, and the people in the Mechanical Academy You are studying the dynamics of mechanical structures, and you went to study the professional fields of other people's Institute of Electromagnetics. In one sentence, your behavior is simply using your hobbies to challenge other people's jobs!"

As soon as this remark was made, everyone in the Aviation Academy and the Mechanical Academy lowered their heads.

And everyone in the Institute of Electromagnetic Research held their heads high. Shu Tan, Shu Tan, hurry up, Master Li, scold them a few more words.

As a result, Li Zhen changed his voice and looked at the Institute of Electromagnetics again: "Are you proud? You didn't figure out the things in your professional field, but let a group of laymen mature the technology. Are you proud?"

After saying this, everyone in the Electromagnetic Academy lowered their heads in shame. I wanted to explain that 'we are now focusing on AC motors', but I didn't dare.

Li Zhen stood up, pointed to the smoking motor and said: "If you enlarge it ten times, assuming that the power is also ten times higher, the power consumption will also increase ten times. The battery required will also increase. It will increase tenfold. The big battery you are using now weighs at least several tens of catties? After running for a while, try to see how much power is left in it? If you want to use a synchronous motor as an engine, if you can Make a motor powerful enough to propel the airship. Then you need to bring a battery of at least several hundred kilograms.

A battery of several hundred kilograms may only keep it spinning for an hour. Does it make sense? Even if the battery life is not considered, let me ask you, how much thrust do you think the synchronous motor can generate even if the torque of the synchronous motor is increased by ten times? A very simple question, even if its power is increased by twenty times, it is impossible to propel an airship of several hundred kilograms forward. "

Liu Jinghong sighed: "Master Li, I am overthinking this."

Li Zhen sighed: "I know that you are eager to make progress. But haste makes waste, and progress is not made by you like this. I am not criticizing you, I encourage trial and error, but at least you can You have to find the right direction. Why should I criticize you, because you are too anxious. You calm down and think about it, and make a theoretical basis for yourself, and you can find out that this is unrealistic. As a result, you don’t even make theoretical assumptions, and directly Holding the motor is whimsical."

Everyone was speechless. This is indeed the case. This is an obvious disadvantage, and it is just a whimsical idea. Everyone didn't even prepare the data...

Li Zhen smiled, and said: "I didn't say that. The power of this synchronous motor is not even comparable to that driven by human power..."

"Huh?"

Liu Jinghong asked in surprise: "Are you paddling in the sky?"

Li Zhen's face darkened on the spot: "Are you stunned? Are you stupid to build a spaceship in Eight Dragon City?"

"Ha ha ha ha."

Everyone laughed loudly, Liu Jinghong blushed, and lowered her head in a huff. Pat your head secretly, wipe, Xun Tianzi really affects IQ. After being in contact with that grandson for a long time, my IQ can't keep up.

In the Kyushu Academy of Sciences, why did I say such stupid things? Paddle in the sky... Thank you for being able to speak.

Ma Jianbin's eyes lit up and he hurriedly said: "Mr. Li~IndoMTL.com~I have an idea."

"Tell me."

"You just reminded me of the human drive, can we use the chain to connect the propeller. Then people pedal on it to drive the chain, and the chain drives the propeller? Hey, this is really a great idea, manpower Airship. I think you can try it, manpower drive, the torque should be bigger than the electric motor?"

Li Zhen covered his forehead helplessly: "I just gave an example."

After thinking for a while, he said again: "Then you are willing, go and try."

After the crowd dispersed, Li Zhen suddenly froze on the spot.

No, why did a word suddenly pop up in my mind called - internal combustion engine?

What is an internal combustion engine?

Li Zhen was completely confused, why did he feel as if someone had told him that there was an internal combustion engine on top of the steam engine. But I can't remember how, the internal combustion engine is a thing?

What is the principle of the internal combustion engine?

Li Zhen frowned gradually. He was sure that someone had told him about the internal combustion engine, but it was so vague that he couldn't remember the principle of the internal combustion engine at all. Maybe that person just mentioned something casually, maybe that person doesn't quite understand the principle.

But the question is, who exactly told themselves?

Suddenly, his heart became hot again. Li Zhen covered his chest and murmured: "Is it her?"

"Who is it?"

“…”

He's running out of knowledge and needs a catch up.

PS: For everyone who voted for the monthly ticket, we will add more updates, and for you who tipped rewards, we will add more updates. Continue to five more today. 6689