Chapter 1799 is too precise
Seeing the old Tao say this, Jin Ziqiang asked curiously, "Have you ever been in the northwest?"
The old Tao smiled and nodded, "It's not just me. , this old Ran My comrade has been there too.”
“This guy has been there too.”
The three of them were surprised. Yang Xiaotao looked at Ran’s father and had no reaction, so he spoke in general terms and in detail. Let them guess.
Sure enough, after knowing the identities of Ran's father and Lao Dao, the three people's faces immediately became respectful.
Ran Qiuye brought the tea and fruit, and the three of them chatted about the past while eating.
After talking for a while, there was a moment of silence in front of the table.
Jin Ziqiang glanced at Wang Qiang, Yang Xiaotao and the others knew it was time to get to the point, so they put down their teacups and waited.
Wang Qiang received the prompt and said, "Gong Yang, we have taken the liberty to come here this time. In addition to meeting you, we also have something to ask for."
"You said, I will help if I can."
Yang Xiaotao did not agree in a hurry, which was different from Fatty Ding's matter.
That one must be helped, and this one depends on what the matter is.
Wang Qiang nodded, then took the briefcase carried by the secretary and took out two drawings from it.
After Yang Xiaotao took it, Ran’s father also looked at it, and then Yang Xiaotao asked curiously, "This is the engine drawing, right?"
"Yes!"
Jin Ziqiang nodded in affirmation.
"If you read it correctly, it should be the four-cylinder diesel engine from our machinery factory."
"Yes, that's right."
Wang Qiang nodded seriously.
Yang Xiaotao looked at it again, then frowned, and then put the drawing on the table, "Do you want to change the design?"
"How did you know?"
Wang Qiang asked subconsciously, Yang Xiaotao pointed to two places on the design drawing, "Here and Here, the original data were eight and three point two, but now it is nine and four point four. If these two places are changed, other places must also be changed."
Yang Xiaotao can do it just by looking at the drawing. The speed and accuracy of finding the problem left the two of them speechless.
Wang Qiang and Jin Ziqiang looked at each other with shock in their eyes.
And that's not the most important thing. Yang Xiaotao pointed at the table and said thoughtfully, "If you change these two data, the compression ratio of the gas and fuel in the cylinder will have an impact."
"Generally speaking, the compression ratio of this kind of compression ignition engine is designed to be higher. The original compression ratio of this model was between 18 and 21."
"If you change The size is equivalent to increasing the denominator At the same fuel supply rate, the compression ratio cannot be reached, and the engine produced becomes less powerful."
Yang Xiaotao explained while holding the table, Ran Xinrui next to him looked at Yang Xiaotao seriously With a look of admiration on his face, he turned back and asked Ran Qiuye, "Sister, what does the compression ratio mean by brother-in-law?"
Ran Qiuye shook his head, "I'm not a science major, how would I know."
Ran Xinrui remembered that her eldest sister was a teacher major, so she looked at Lou Xiao'e. She was her brother-in-law's secretary, so she must have been influenced by what she heard.
Lou Xiao'e looked confused, "I don't know the compression ratio."
Ran Xinrui was speechless, and suddenly she wanted to be a mechanical expert and design machines like her brother-in-law. It’s definitely a sense of accomplishment to answer people’s questions.
Ran's father at the table did understand the meaning of Yang Xiaotao's words, but this understanding could not reduce the shock in his heart.
Being able to discover the wrong things so quickly and analyze the consequences from these wrong places, this skill can only show that he is confident about the engine.
And this is just one of the many engines Yang Xiaotao has developed.
The earliest single-cylinder diesel engine, to the current eight-cylinder diesel engine, and now I heard that there is another aircraft engine.
This.
At this time, Ran's father suddenly wanted to call Lao Zheng and tell him Yang Xiaotao's situation.
But when I thought that aircraft engines and diesel engines were completely different concepts, I gave up the idea.
While Ran's father was thinking, Jin Ziqiang and Jin Ziqiang had their mouths wide open and looked at Yang Xiaotao, so shocked that they didn't know what to say.
Pa bang bang
Jin Ziqiang didn't know what to say, so he could only purse his lips and applaud to express his admiration for Yang Xiaotao.
"High, too high, you are really amazing."
"Famous is not as good as seeing it. Once an expert takes action, you will know whether you are good or not."
In comparison, Wang Qiang was even more excited.
They are all engaged in technology. I have been doing it for so long, but others can see my problem at a glance and tell the crux of it. This is the gap.
I have to admit that others are better than me.
"Mr. Yang, we are here this time just for what you said."
Jin Ziqiang then spoke and finished explaining the purpose of coming here.
Last year, Jiefang obtained the production drawings of the four-cylinder diesel engine from the machinery factory, and also obtained a batch of engines from the machinery factory.
At that time, in order to get rid of the constraints of engine imports, the automobile factory realized the nationalization of all vehicles.
Moreover, this engine is better than the modified one. Not only is it powerful, it has a low failure rate. It is produced in China and can be repaired and replaced at any time.
Due to various factors, they wanted to use this engine to replace the original ship modified engine.
But I didn’t expect that I encountered difficulties at the very beginning.
Because when this engine was first developed, it was purely for gaining credits, so when Yang Xiaotao designed it, he tried his best to pursue perfection so as to gain more credits.
Later, the machine tool technology of the machinery factory was upgraded, and the engine produced was very precise.
The result is that after the engine enters the automobile factory, the accuracy is so high that the automobile factory's matching equipment is incompatible.
Moreover, the cost of the factory that produces engines is too high. Even if we purchase several machine tools from a machinery factory, we will still be unable to make ends meet and lose money.
In the past six months, their automobile factory has been trying to improve the capabilities of surrounding industries, starting from supporting facilities, starting from production levels, and paying close attention to technical capabilities.
In the past six months, they have indeed made great progress. Compared with the rough technologies before, it can be said to be a world of difference.
But they are making progress, and the machinery factory is not idle either.
Especially with the improvement and popularization of the Venus machine tool series, the four-cylinder diesel engines produced by the machinery factory today are more sophisticated than before.
This made them realize the reality that they were not improving as fast as others.
So the senior management held a meeting to reflect on whether this approach was right or not.
If I’m not right, the results of the past six months are obvious to all.
To be fair, their new car design has not been released yet.
Everything is because this engine is so good.
Finally, they also understood that they could not count on the engines from the machinery factory, because they were always on the road to progress. And they only need a certain stage of engine.
So, as long as they adapt to a certain engine, they can make a new truck.
So, after finding each other, they started tinkering with engine design again.
Then
After many attacks, they came.
Ask Yang Xiaotao for help.
After Jin Ziqiang finished explaining the situation, Yang Xiaotao touched his chin and thought.
In the past, I was thinking about how to optimize and how to improve.
It's better now, it's time to go backwards.
It’s so helpless.
Ran's father on the side was also speechless after hearing this. They tried every means to improve, but they felt that the improvement was too fast.
It’s such a vast world, full of wonders.
But the old man is very open-minded. In his eyes, as long as it is suitable.
Just like on the battlefield, regardless of the various guns, as long as it can kill the enemy, it is a good gun.
Jin Ziqiang and Wang Qiang also knew that their requests were a bit strange.
But during this period, they racked their brains and couldn't figure it out.
I've changed this drawing a thousand and eight hundred times, but the finished product just doesn't work.
Now those workshop workers jokingly call them soy saucers when they see them, and even their own designers have given up hope.
"Well, you guys sit down for a while and I'll think about it."
Yang Xiaotao mentally reviewed the situation of the four-cylinder diesel engine and felt that it would not be difficult to make changes.
Jin Ziqiang and Wang Qiang looked at each other, both unsure of what Yang Xiaotao meant.
But the other party has already said this, what else can they do?
"Director Wang, let's go inside and talk about your requirements."
Yang Xiaotao stood up, and then Wang Qiang stood up immediately.
"Mr. Yang, we are not in a hurry. Just help when you have time."
Yang Xiaotao's eyes widened, and then he looked at Wang Qiang, "This thing is not difficult and it doesn't take much time."
Hearing this, Wang Qiang felt that his heart could not beat a little, and he felt uncomfortable all over.
However, he followed Yang Xiaotao into the house and came to the study.
Looking at the bookshelves around the study room, Wang Qiang swept his eyes and was shocked again.
Even their factory director doesn’t have so many books at home.
While looking at the bookshelf, Yang Xiaotao's voice came from beside me.
Wang Qiang quickly looked over and saw Yang Xiaotao taking out a large document box from the kitchen under the table.
He took a look and saw the words four-cylinder diesel engine on the cover.
Immediately I saw Yang Xiaotao opening the box and taking out the drawings inside. There was also a pile of draft paper at the bottom.
"This is the first draft from the previous design, I think it will be helpful."
As Yang Xiaotao said, Wang Qiang looked embarrassed.
It feels like there is clearly a number one, but I insist on finding the number two.
However, Yang Xiaotao acted very quickly, and Wang Qiang didn’t think too much. He sat aside and talked about the design requirements with Yang Xiaotao.
"Well, in this case, we have to change it here."
Hearing Wang Qiang's request, Yang Xiaotao took out a semi-finished design drawing and redesigned it with pencil.
Wang Qiang watched from the side and saw Yang Xiaotao picking it up to look at it, erasing it with an eraser, and taking out new paper to redesign.
He could see that Yang Xiaotao was really planning.
It’s just that this kind of design requires a lot of factual verification, and it’s simply not feasible to make calculations based only on design data.
However, Wang Qiang did not dare to say more and just watched from the side.
"Ding, congratulations to the host, you have successfully designed a 'four-cylinder diesel engine', the evaluation level is good-medium!"
"Ding, congratulations to the host, you have obtained 1000 credits."
"Ding, it is found that the host's design of 'four-cylinder diesel engine' has a higher evaluation level. This reward is halved."
"Ding, congratulations to the host, you have obtained 500 points."
I don't know. After a while, Yang Xiaotao heard the sound of the system and felt relieved.
Then look at the revised engine drawings.
This pile is quite a lot.
It's just an evaluation.
The original four-cylinder diesel engine had an excellent-medium rating, but now it is better and has dropped down a notch.
The credit reward also changed from the original five thousand to one thousand, and then to five hundred.
However, although the credit award has shrunk tenfold, the system evaluation still shows that this design was successful.
Even if it is a little low, it is still a qualified product.
Yang Xiaotao arranged the design drawings, stood up and walked out.
At this time, it was not dark yet. Looking at the time, it was only two hours.
Wang Qiang, who was reading a book on the side, suddenly saw Yang Xiaotao standing up. He quickly put down the book and stepped forward and asked, "Mr. Yang, there is no need to rush about this matter. There is no point in being anxious."
"It would be great if you could help us. We are not in a hurry."
Wang Qiang thought Yang Xiaotao was tired, so he quickly stepped forward to comfort him.
Yang Xiaotao didn't say anything, but just handed the design drawing in his hand to him, "Take it, I won't make a second copy if you lose it."
Wang Qiang subconsciously took the drawing, and then some Looking at Yang Xiaotao in surprise, "You, no, you, this drawing is"
Wang Qiang stumbled and said, somewhat unbelievable.
“This design is based on your requirements, take it back and try it out.”
“However, it shouldn’t be a big problem.”
Saying that, Yang Xiaotao walked out.
Wang Qiang held the design drawings in his hands, his expression sometimes shocked, sometimes incredulous. He didn't know how he followed Yang Xiaotao out.