I brought a Jurassic

Chapter 359: The old liberation is not sentiment, but the reality is powerless
"Alright, alright. I'll provide you with food, food, and improve your lives. Now let's get down to business. This time I invited you here because Wang Luo modified an engine based on a Dodge truck and applied the turbocharging technology originally used in aircraft engines to it. This time I invited you here to help with research and see what the situation is. Let's brainstorm and try to thoroughly research this engine and make our domestic automobile technology take off."

"Wang Luo? Little Hero Wang? The student who goes to our school library every other day to look up information?"

"Ha, he doesn't just come to your school, he also comes to our school every few days. Old Lin, which school is Wang Luo a student from? He obviously hangs out in various universities, but we all know that most of the good stuff he gets goes to your school, and we don't get a single cent."

"Haha, actually he is not a student of our school. He is a private student of Professor Ding. He is still a student of accounting technical secondary school. He gave us the things because of Professor Ding's face. Forget it, let's not talk about this. Let's not change the subject. These are the drawings. Everyone can check and see if it is feasible."

"Okay, let's see what's going on."

Dean Zhang brought out all the drawings, and everyone gathered around them and started looking at them.

"This drawing is well done, very professional. If I didn't know that he was an accounting secondary school student and had studied with Lao Ding for several months, I would have thought he was a veteran in mechanical research just by looking at the drawings. He is definitely a genius."

"Indeed, this drawing skill is quite good. Just by looking at the drawings, I feel convinced that he is a technical person. Good."

They didn't care about the technology at first. Just taking the blueprint as an example, they were very impressed with Wang Luo.

"Oh, Lao Zhang, you see, this guy didn't just talk about turbocharging technology, that was for gasoline engines, he also wrote about mechanical supercharging technology. If that's the case, if his theory is feasible, then it's equivalent to making two engines, that's amazing. We've only heard of this thing, but he directly made the blueprints, it's unfathomable, I admire you, I admire you."

"Yes, how much horsepower does FAW Jiefang's CA10B engine have? 90 horsepower, and it's not very fast, it can only run up to 65 kilometers per hour, and the economic speed is only over 30. Wang Luo mentioned in this report that if supercharging technology is added, this engine can reach almost 180 horsepower, which is doubled. That's amazing."

"It's not enough for us to just look at it here. We should call Wang Luo over and explain it to us. This is a bit too scary. We have no problem checking the drawings, but it's better for him, the person involved, to come over for some professional things. Anyway, I have never been exposed to these technologies. They are too cutting-edge and I don't understand them."

"No problem. I originally thought that we old guys were just here to discuss things, but I didn't expect that you had only heard of him and didn't know whether he was in school or not. I'll ask someone to ask him."

So Principal Lin sent his secretary to find Wang Luo. At that moment, Wang Luo was in the classroom, discussing the air compressor problem with his senior classmates.

"I'm busy. Sorry to interrupt your discussion. I'm here to talk to Wang Luo. There are some professional things I don't understand. I hope Wang Luo can explain them to me."

The secretary knocked on the door and came in to say something.

"Oh, so soon. I thought I would have to wait a few days. I'll be there right away. Senior brothers and sisters, let's discuss this later. I'm going to get busy now."

"Go, go, your work is important."

Following the secretary to the conference room, everyone surrounded Wang Luo and started questioning him.

"Wang Luo, how did you come up with the idea of ​​applying turbocharging technology to cars? What are the advantages and disadvantages? How about fuel economy? With such a large increase in horsepower, can it really reach the data in your report?"

All kinds of questions were thrown at them, and for them, nothing was more important than research.

"Teachers, teachers, let's take our time. Don't be anxious. I won't run away. I will explain everything to you."

"Yes, yes, don't worry, let's take our questions one by one, there's no need to rush."

Principal Lin came over and rescued Wang Luo.

"Then let me explain turbocharging technology to you. Although all of you teachers are experts in mechanics and know about it, this is the first time it has been used in a car. Let's go step by step."

Wang Luo waited until everyone calmed down before he began to explain, and everyone nodded in agreement.

"A turbocharged engine is an engine equipped with a turbocharger. Its working principle is to use the inertial momentum of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber, and the turbine in the turbine chamber drives the coaxial impeller, which presses the air from the air filter tube into the cylinder for pressure.

When the engine speed increases, the exhaust gas discharge speed and turbine speed also increase synchronously, and the impeller compresses more air into the cylinder. The increase in air pressure and density burns more fuel, and the engine output power can be increased by increasing the fuel amount and adjusting the engine speed accordingly.

In the past, everyone knew that it was generally used in aircraft, especially piston aircraft engine technology, but I have read relevant literature and found that in recent years, Europe and the United States have begun to use it in large quantities in marine engines, and they have begun to research automotive engines in large quantities, and the progress is very great. Maybe within one or two years, similar engines will be available on the market. "

"What Wang Luo said is right. I have also read this literature magazine, but I just didn't think about it in this way, because at present our domestic engines are blindly imitated and have not reached the level of our own design, so I didn't study it in depth, but Wang Luo came up with it himself, that's amazing, Wang Luo, can you tell us what are the advantages and disadvantages of using turbocharging in car engines? This is something everyone wants to know very much. After all, I feel that the emergence of a new technology is not mature enough. We don't want to use an immature technology in practice. That is not innovation, but a crime, especially when our country lacks everything. It is not good to waste some manpower and material resources. Don't blame me for being nosy."

This is Lao Chi's heavy-handed words. The reality is that we cannot afford to waste. "I completely understand your concerns. The emergence of a new technology is always accompanied by too many things. If this happened in Europe and the United States, it would be easy. After all, they have money and people, and can afford to waste. We don't have that condition, so we can only be frugal. So I came up with this technology after careful consideration. It not only caters to the current development frontier of international engine technology, but also gets rid of blind imitation, and can make our domestic engine technology go further. Now I will explain to you the advantages and disadvantages of turbocharging technology."

Without saying anything, Wang Luo started talking about the advantages and disadvantages of turbo engines.

"Cars equipped with turbocharged engines give the impression that they are much more powerful than cars equipped with naturally aspirated engines. The maximum output power of an engine using a turbocharger can be increased by about 20 to 40% or even more. In addition, after adopting supercharging technology, the engine can improve fuel economy and reduce exhaust emissions. This is the most important advantage among the advantages and disadvantages of turbocharged engines.

The disadvantage is that the maximum explosion pressure and average temperature of the turbocharged engine will be greatly increased, and the mechanical properties and lubrication properties will also be affected. Therefore, the service life of the turbocharged internal combustion engine will be shorter than that of a non-turbocharged engine of the same displacement.

In fact, the turbocharger of a turbocharged engine is not complicated. It consists of a turbine chamber and a supercharger. The air inlet of the turbine chamber is connected to the engine exhaust manifold, and the exhaust port is connected to the exhaust pipe. The air inlet of the supercharger is connected to the air filter tube, and the air outlet is connected to the intake manifold. Finally, the turbine and impeller are installed in the turbine chamber and supercharger respectively, and are rigidly connected coaxially.

The difficulty is that in order to ensure that the supercharged engine can work reliably and durably under high mechanical and thermal loads, it is necessary to make necessary changes in the selection of main thermal parameters, structural design, materials, processes, etc., rather than simply installing a supercharger on the engine. Since this change process is quite difficult in practice and the matching problem between the supercharger and the engine needs to be considered, it also limits the application of exhaust gas turbocharging technology in engines to a certain extent.

That’s why the mainstream engines in the world are still based on natural aspiration, without turbochargers installed on the engines, even though they have been around for many years.”

After listening to Wang Luo's words, everyone discussed it and agreed with Wang Luo's point of view. They were all experts in this field. Although they had never come into contact with this thing before, everyone could understand it as long as Wang Luo explained it.

"You explained it in great detail. Very good. You are worthy of being my student. Your turbocharged engine is currently a semi-finished product. It is only feasible in theory, but it still faces great problems in practice."

Dean Ding smiled contentedly and offered some crucial advice.

"Yes, it can only be regarded as a semi-finished product, because I have not yet come into contact with the materials in this area, and I can't find anything similar. If you have similar materials from abroad, we can make a reference. Of course, I have now made a systematic optimization of this engine based on the original one. Don't worry about the horsepower. At least in theory, it has 150 horsepower. Even without the turbocharging technology, it is much more powerful than the current Jiefang truck engine.

Our turbocharging technology may be limited by materials at present, but it can be used as a technical reserve. We just need to strengthen research in this area in the future. When the materials are ready, we can install them directly on the car."

"Does anyone have any ideas? Since Wang Luo has already passed it in theory, I think we can strengthen our research in this area."

Principal Lin asked everyone present.

"We can do it. Wouldn't it be a waste if we don't use such a good thing? Isn't it just a material limitation? It's easy. Let's form a research and development team together. It would be best if we ask for help from the higher authorities and ask the relevant units to send their best and brightest to join us. I won't accept it. If they can do it abroad, we can do it too. Without butchers, do we have to eat hairy pigs?"

Someone who was outspoken and immersed in research all day long immediately spoke up.

"Okay, let's do it. But the priority now is to verify the current engine that doesn't require turbocharging. Although Wang Luo has drawn the blueprint, we can't just let it go. Double insurance is the only way to be safe. After verification, we will send it directly to FAW so that our Jiefang can use the more powerful self-developed engine as soon as possible."

"Our school can send a materials science teacher here."

"I'll come too."

"So are we."

Everyone raised their hands to vote, and finally it was passed unanimously. Wang Luo, as the initiator of this engine project, was also pulled in by the teacher. He couldn't leave him, after all, this was a project he had created himself.

Wang Luo is currently a loser in the material science major. After all, he has never studied it and does not understand these things at all. If he had known the knowledge of material science earlier, he would have submitted the materials of the 99 major revision and J20 as soon as possible. Those are material science knowledge, and he still needs to study them, and he needs to go through a higher level of study.

Just like that, Wang Luo joined the R&D team and started to carry out research work. After the related departments received the relevant information handed over by the heads of various universities, they were shocked. They didn’t expect to give them a surprise. Their own people know their own business. Although China can now independently manufacture trucks, this type of truck is an antique.

The Jiefang CA10 imitates the Soviet ZIS 150 truck, and the Soviet Union imitated it by developing it based on the International truck that the United States aided the Soviet Union during World War II. Therefore, this truck has a strong flavor of American trucks in the early s, and its technical level is also equivalent to that of American trucks in the early s.

It has been 37 years, and China cannot fall behind any further. The United States is now equipped with improved Dodge M54, M520 trucks, and even Goertek M trucks, which far exceed China in terms of speed and load-carrying capacity. We also want to equip new engines in China, but we are really unable to do it. We can only watch with envy, but we do not have the ability to do it ourselves. The design alone is a big problem. We have no similar experience in China, and we lack talent. We can only blindly imitate backward foreign technology and follow behind them. It is not so easy to catch up.

Jiefang brand cars have a solid structure and a long service life, but since July 1956, 7, the old Jiefang car has been produced for 13 years, reflecting the single structure of my country's automobile products. In the past, one out of every two cars running on the land of China was a Jiefang brand. If you don't use this car, you won't have a good car to use. It's difficult.

And now, everything was quiet, but suddenly a new engine came out, and even the drawings were produced. How could this not be surprising? I thought they were just bragging, but after repeated confirmation, I learned that it was developed by Wang Luo, who had a number on the list. Only then did the industrial department, and Wang Luo's acquaintance Leader Li, lead a team to come and see the actual situation.

(End of this chapter)