Scholars in the courtyard

But I understand, when it comes to getting money, it’s really uncomfortable!

Although she has money, she earned it with her youth. When she gets older and can no longer afford to eat, she still relies on the money to support herself in old age.

That money belongs to you, not the Jia family.

Especially with an evil mother-in-law!

How is it possible for her to use money to buy coal?

"No. Huairu."

Jia Zhang's triangular eyes rolled and suddenly widened as if she had discovered something, "Tell me, if Yan Fugui is so helpful to the Zhou family, is he having an affair with the widow of Zhou?"

"Although this widow is average-looking, she is still better than the third aunt!"

"Besides, this widow has been here for so many years. Who knows if she will be unable to bear the loneliness. She might have an affair just for a bite to eat!"

Jia Zhang almost jumped up, as if she had discovered some truth.

Qin Huairu's body trembled, her heart skipped a beat, and she felt like her whole body was being seen through!
After looking at Jia Zhang for a moment, I found that the other person was looking outside and didn't notice at all, so I felt relieved.

Then he sneered in his heart again.

Speaking of widows, who in this courtyard has been here longer than Jia Zhang?
According to what Jia Zhang said, she also has a leg!

Uh!
No one should like this!

Qin Huairu put down the lid of the pot and ignored the cursing Jia Zhang.

"Mom, I'm going to ask my eldest mother to borrow some. It's getting colder and colder. I don't have any coal. How will I survive?"

Jia Zhang glanced at Qin Huairu, "Then go quickly, pay the money, and let Yan Fugui and the others send it back. It will save us a trip!"

Qin Huairu nodded and left, but as soon as he went out, he saw Banggeng coming back covered in dust.

"Bang, what's wrong with you?"

Banggeng rubbed his blue face, curled his lips and said, "The school organizes a visit to the machinery factory, and we take care of lunch at noon."

"I went to sign up, but the teacher refused to let me go, saying that only those with good performance could go."

"My classmates laughed at me, so I would fight with them!"

Banggeng said he was aggrieved, but in fact he just wanted to eat more delicious food. He said he wanted to see if he could bring something out and sell it to buy a candy man.

In the past, when his father was here, he would buy candy men for him after selling scrap metal.

I haven't eaten for a long time.

Who knows, I couldn't choose, so I just started making trouble.

"What? Why don't you let us go? This teacher is also blind. We are such a good kid, but we are so good that we can't be chosen?"

"I'm going to find Yan Fugui. This Red Star Elementary School is becoming more and more useless!"

After saying that, she walked out. Qin Huairu didn't care about her and let her make trouble.

If you don't make trouble, how can you show that it's not easy for you?
Just seeing Banggeng like this made me feel angry again.

My son finally went to school and looked for an opportunity to make progress.But I didn't expect that the teachers in this school have no sympathy?

If their kids don’t study well, it must be because these teachers are irresponsible.

"Go back to the house and see your sister! Wait for mom to come back and cook some food."

Qin Huairu patted the stick twice and then walked to the aunt's house.

Before entering the door, I heard the quarrel between Jia Zhang and the third aunt in the front yard.

Ugh!
I don’t know how much money Auntie has saved.

If it doesn't work, just borrow less.

Thinking that tomorrow was the day to meet Liu Guangqi, Qin Huairu finally felt better.

With that book, it should be an explanation!
The next day, when Yang Xiaotao arrived at the factory, he saw the propaganda director leading a group of people to dress up in the factory area.

There are people from the logistics department, the office, and the security department, all of whom are busy working.

Thinking of what Lao Dao had mentioned yesterday, Yang Xiaotao came to Zhao Chuanjun and expressed his worries.

Especially when visiting the workshop, be careful.

Relevant areas can only be watched from a distance outside, and no one is allowed to enter the dangerous area.

Zhao Chuanjun also knew Yang Xiaotao's concerns. Whether it was the factory or the children, any problem on either side was not a trivial matter.

After the matter was settled, Yang Xiaotao stopped caring, returned to the office building, and came to the R&D Department.

In the room, Zhang Guanyu was leading several people to sort out the drawings.

After Yang Xiaotao walked in, Zhang Guanyu stepped forward and said, "Mr. Yang, this is part of the drawing of the Red Star tractor. This is the drawing of the single-cylinder diesel engine."

"After we calculated, if we want to meet the size of the existing tractor, we need to divide a cylinder into two halves, and then consider other components, so that the size of each cylinder is only one-third of the original, or even smaller."

"But in fact, adding a cylinder requires adding a set of pistons, two valves, and an oil ring."

"Besides that, there's a camshaft, valve springs and so on."

"If you want to manufacture it according to this size, not only will the technical difficulty be greatly increased, it will be very troublesome to manufacture in the future, but the power produced may not be greater than that of a single cylinder!"

Zhang Guanyu told the results of the discussion between several people, and Yang Xiaotao just nodded aside.

There has always been a saying in previous lives that the number of tanks is just.

So we often see eight-cylinder, ten-cylinder, or twelve-cylinder ones.

Regardless of whether this statement is correct or not, if there are more cylinders, the engine must have a larger volume.

This is beyond doubt.

Therefore, Yang Xiaotao was already prepared when he studied the drawings. This is what he mentioned when discussing with Yang Youning. The new engine may not be suitable for the current tractors, and he must be prepared to open a new line.

"Also, Mr. Yang."

"If we follow the new engine design and want to achieve higher speeds, in addition to power, we also need a matching gearbox, and the gearbox we currently produce is obviously not suitable."

Zhang Guanyu spoke again and expressed his doubts.

Yang Xiaotao glanced at the drawing. Many dimensions were clearly marked on it, and there were notes next to it.

Several people gathered around to listen to Yang Xiaotao's opinions.

"This is indeed a problem. What do you think?"

Zhang Guangyu and others looked at each other and spoke out the discussed plan, "Mr. Yang, in fact, we can improve the gearbox, just on the Red Star tractor, and we can also increase the lifting speed."

Yang Xiaotao shook his head after hearing this, "It's useless. You see, the speed of a single-cylinder diesel engine has an upper limit. This is the main reason for the speed limit."

"And don't forget that our positioning in designing tractors is to have large carrying capacity, strong adaptability, and strong off-road capabilities."

"If you sacrifice the carrying capacity in pursuit of speed, you will lose more than you gain." Zhang Guanyu said suspiciously, "Then we design a new engine. As it is now, it is difficult to take care of both parties."

Yang Xiaotao smiled and said, "So, the two-cylinder diesel engine we designed should not be limited to the framework of the Red Star tractor."

“With new engines, of course there are new tractors!”

With Yang Xiaotao's approval, Zhang Guanyu and others no longer adhered to the original framework and began to design a two-cylinder engine according to their own ideas.

Yang Xiaotao did not disturb these people.

Now he can design a two-cylinder diesel engine on his own, but that doesn't mean he can do it all.

What he wants more is that these people can get exercise and have their own ideas.

After all, Yang Xiaotao's current engine drawing is only an eight-cylinder diesel engine.

If all these drawings are used in the end, then when they develop a better engine later, they will be in a similar situation to their current situation.

Therefore, Yang Xiaotao has been doing personnel training.

Of course, he will not give up the credits he deserves. At worst, it will be announced a few days later.

After leaving the R&D Department, Yang Xiaotao returned to the office.

Lou Xiao'e was called to help maintain order, and Yang Xiaotao was the only one in the room.

"As the engine gets bigger, the front end of the truck needs to be bigger. Is it possible to build a 50-meter tractor?"

I thought of the Dongfanghong tractor that was pulling bricks and earth in the village in my previous life. It was running with a rumble and the driver was twisting the steering wheel hard.

And every time I stopped, the driver jumped out of the car coolly.

I had envied these for a long time when I was a kid.

Although the impression in my mind is not clear, it also points the direction.

Moreover, the speed of this kind of tractor has been greatly improved, so it should be able to meet the requirements.

"Then do it, big tractor."

Yang Xiaotao made a decision in his mind and planned to build the twin-cylinder diesel engine first.

Get the pen and paper out of the space and start working on the design.

Not long after I sat down, the phone rang.

"Hello. Who is this?"

"Director Xiao Yang? I am Liu Dehui!"

"Director Liu! You are so busy, how come you have time to think of me?"

Yang Xiaotao smiled. The person on the other end of the phone was Liu Dehui, the director of Quancheng Automobile Factory.

Nowadays, with the support of the military, Quancheng Automobile Factory is becoming more and more prosperous, its scale is getting larger and larger, and its output is also increasing day by day.

I heard that last time, had it not been for the sudden rise of the machinery factory, the status of Quancheng Automobile Factory would have been higher.

Of course, this ranking is just a reputation and has no real benefits.

Of course, Yang Xiaotao also heard some gossip from Liu Huaimin. It seems that the Quancheng Automobile Factory will be divided into the Logistics Department and will specialize in the production of military products in the future.

But he was rejected by the boss of the First Machinery Department.

He didn't know if it was true or not, anyway, it was the leaders above who had the final say.

"As busy as we are, we still have to maintain our friendship, right?"

Liu Dehui smiled, and Yang Xiaotao leaned on the chair and smiled the same way, "That's right, I would like to thank you for your help with the oil tanker last time."

"That's a small thing. Besides, there's still the approval note above."

"Then there's a first-come, first-served basis."

The two chatted for a while, and then Liu Dehui started talking about business, "Director Xiao Yang, I have something to ask you."

"I know I won't go to the Three Treasures Palace for anything. You definitely didn't call me to have a drink with me!"

"You, at such a young age, are like Lao Wang and only think about drinking. This is not good!"

"Haha, Brother Lao Wang has been drinking with you again recently?"

"Why don't you think about it? You have to have a drink every time you come here. Last time I heard that you had developed a new steel-making technology, you came to my house to have a drink."

Yang Xiaotao laughed and said, "Brother Wang will always make excuses."

"No, but how far is your steel plant in construction? Several steel plants here in Quancheng have asked me to ask so that I can learn from them!"

"What's the problem? Whoever comes, we will warmly welcome you."

Yang Xiaotao agreed without even thinking about it.

As long as more people learn it and use it more, the air compressors they make will be marketable.

Moreover, if there is more steel, it will also promote national construction.

If nothing else, at least the infrastructure has been built, railways and other things have been built, making traveling much more convenient.

"Okay, I'll tell them later."

Liu Dehui agreed.

Yang Xiaotao thought that was all, but Liu Dehui changed the subject and started talking about the engine again.

"Xiao Yang, I heard that you submitted a research plan for a two-cylinder diesel engine?"

"Yes, it was just approved from above!"

Yang Xiaotao suddenly thought of something. This must be the real purpose of Liu Dehui's call.

Sure enough, I heard an urgent voice from Liu Dehui, "Director Xiao Yang, you can make a two-cylinder engine, so the four-cylinder diesel engine is no longer a problem!"

"I really haven't thought about this, but if I have thoroughly understood the two-cylinder one, the four-cylinder one will not be far away."

Yang Xiaotao said cautiously. In his opinion, the increase in the number of tanks is not a simple superposition. There are many differences in design and structure.

But as long as you have a thorough understanding of the double-cylinder, the follow-up work will be traceable.

"Really?"

"Yeah, but it takes time to study, what? Does your car factory want to study diesel engines?"

"To tell you the truth, when you came up with the single-cylinder engine, we started researching it."

"But after such a long time, there has been no improvement. I heard that you were going to build a two-cylinder diesel engine, so I called to ask."

Liu Dehui had no intention of hiding it and admitted it generously.