Automotive Black Technology Chapter 100: ：EA888
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Li Fanyu's current mood is as if he has entered the world of martial arts. On the cliff, I stepped on a banana peel and fell down. When I fell half-dead at the bottom of the cliff, an old man with a secret book appeared.
Boy, I have a drawing of the third-generation EA888 turbocharged engine here. From now on, the important task of maintaining world peace and building China's national automobile will be left to you!
Ecstatically, he pulled out the A4 paper from the printer, picked up a pencil and began to copy the drawings that had been deeply engraved in his mind.
The drawings of these six parts alone are already outrageously complicated. Fortunately, Li Fanyu had worked **** drawing before, and his foundation was fairly solid. He turned on the lamp on the table and started drawing one book at a time.
The clock on the wall was ticking, and he was about to finish the drawing of the cylinder body until it was dark outside the window.
Putting down his pencil, Li Fanyu stood up.
Sitting for too long makes your whole body numb. He stretched out a lot, rubbed his sore shoulders and walked to the office window. It was pitch dark outside, and it looked like all the company's employees had already gotten off work.
At this moment, someone knocked on the door: "Brother, are you there?"
Li Fanyu was startled by the sudden knock on the door, and quickly turned around to open the door and invite An Ning in.
"What time is it? Why haven't you gone back yet?" An Ning asked worriedly, looking at Li Fanyu's bloodshot eyes.
It turns out that Li Fanyu spent more than six hours painting this painting, and it is already past nine o'clock in the evening.
After getting Xapp, Li Fanyu made up his mind not to let anyone know about this mysterious thing. If it were revealed, he would definitely be in big trouble. So even as a parent, he remained silent about Xapp and didn't mention a word.
So even a person like him who is not good at lying can practice nonsense when it comes to Xapp.
He rubbed his dry eyes and said confusedly: "I had an idea about an engine. I was afraid that I would forget it later, so I drew it. When I went in, I forgot about the time. Why haven't you gone back yet?"
An Ning felt relieved and nodded. When I saw Li Fanyu staying in the office late at night, I thought he was worried about things in the laboratory.
She took out a wet wipe from the pocket of her jacket and went over to wipe the corners of Li Fanyu's eyes: "The workers have just evacuated and they have been going back at this time these days. Have you drawn a sketch? Show it to me, sister. Help you with your advice."
"You're talking about me, it's too late for you to go back now. It's too remote here, and there's no one on the construction site. It's not safe for you to go back too late. I'll take you back later."
Li Fanyu casually took a drawing and handed it over, which happened to be the top plane cross-section of the cylinder.
Seeing that he had endured until this point, An Ning thought he had encountered some difficulties and obstacles. I wanted to help him take a look and put forward some opinions of my own.
But the moment she saw the picture, she was shocked. The design drawing in front of me can only be looked up at, and there is no point in giving any guidance.
On the anatomy diagram, the specifications, dimensions and materials of the engine block have been planned in extreme detail. Even some details, such as the suspension position, are already perfect. If Li Fanyu hadn't said it himself, An Ning thought this was a drawing of an engine in production!
This is not a sketch at all, but a finished product that looks fully designed and ready for production!
"This...did you design this?"
"Hey, I just drew it blindly." Li Fanyu put his hands on the back of his head and looked up at the sky.
An Ning frowned, glanced at him sideways, and said quietly: "You don't tell me the truth, are you trying to fool me into thinking that I'm a kid from your school?" She picked up the pencil and clicked on the drawing. Quite a bit.
To say that the detailed data is a random drawing is really a lie.
Li Fanyu felt unnatural all over as he was stared at by her resentful eyes. He scratched his head and laughed dryly, with a naive look on his face, and his eyes were indeed rolling around in his narrowed eyes.
"Ahem, actually I am a genius."
An Ning looked at him steadily for a while, "Okay, my genius brother." She looked at the drawings carefully again, and the more she looked, the more frightened she became. Some design concepts were even worse than those of Mercedes-Benz. Don't give in too much. She couldn't even see through many links.
So An Ning was shocked under the pressure and transformed into a **** version of a curious baby: "You have arranged the valve position like this, what kind of transmission structure are you going to use to match it?"
"Well, I originally planned to use a rocker arm. But I feel that the crankshaft wheel will definitely conflict with the rocker arm due to the design of the cylinder, so I plan to add a roller to the rocker arm."
"What about this?"
"What about this?"
"And this!"
． ． ． ． ． ． In fact, Li Fanyu hadn't had time to thoroughly understand these technologies. Along with the explanation to An Ning, he himself was also exploring the technical features of EA888.
For this engine, Li Fanyu was very famous before the historical process changed.
But the reason why it is famous is not its excellent performance, but its biggest and biggest shortcoming.
This engine was equipped with the Audi A4, A6 and Volkswagen Magotan. Due to its large sales volume and high market share, it caused an interesting phenomenon at that time.
Owners of these three cars always keep a barrel of engine oil in the trunk, and add a little more almost every two thousand kilometers. So EA888 is jokingly called - mixed fuel engine.
Of course, this mixed fuel does not refer to diesel and gasoline, but engine oil and gasoline.
Regarding this point, Li Fanyu was not aware of it before, but he was aware of it. As An Ning inquired deeply, Li Fanyu understood the structure of this engine bit by bit, and then he suddenly realized and solved the problem that had troubled him before.
The biggest reason why engine oil burns comes from - simple configuration!
The so-called simplified configuration means replacing some high-cost links with low-cost ones or simply canceling them. To reduce costs and increase profits and pricing space.
Li Fanyu had seen the Audi A4L change engine oil in his uncle's repair shop before, so he still knew about this EA888 engine.
By comparing the EA888 in his memory with the EA888 in the current drawings, Li Fanyu sadly discovered that this **** Audi is simply a scam!
Take the A4 as an example. The standard wheelbase version imported from abroad is called A4, and the domestic extended wheelbase version is called A4L. The L means long.
The drawing that Li Fanyu is redeeming now is the imported standard axis version. Comparing it with the A4L engine in his memory, he found that there were actually several more structures.
MPI+FSI dual injection system, IAGK, boost pressure limiting valve, rotary slide valve coolant pump.
These four items are not available on the domestically produced EA888 of that time and space.
Dual injection system, simply put, means that the fuel system adopts the most suitable injection mode according to the conditions of the engine. It sounds fancy, but to put it bluntly, it improves fuel economy.
IAGK stands for Exhaust Manifold Integrated Cylinder Head. The manifold is a channel that discharges the waste generated after combustion in the engine cylinder. Because of the high heat during operation, it is generally arranged separately. The IAKG layout uses the coolant in the cylinder head to cool the manifold.
As for the boost pressure limiting valve, it controls the turbine pressure and protects the engine throttle.
The rotary valve coolant pump is also designed to provide better heat dissipation.
Li Fanyu can understand that the dual-injection system is castrated; after all, the national conditions are such that the domestic oil quality is not good. This may save fuel, but it also requires higher quality gasoline. Originally, it would be enough to add 93-octane gasoline, but with this thing, you have to add 97-octane gasoline. The amount of fuel saved may not make up for the price difference between the two brands of gasoline.
But IAGK, the pressure limiting valve and the rotary valve coolant pump have been castrated. This is taking the Chinese people as the main target!
The structure of the turbine engine is relatively complex. Its turbine bearing parts and the lubrication parts used to ensure the operation of the vacuum pump determine that it consumes more oil than a naturally aspirated engine.
And the extra high temperature brought by supercharging will definitely cause the engine oil in the engine to deteriorate and reduce its viscosity, resulting in oil burning.
If you castrate all these three big parts, you will be damned if you don’t burn engine oil!
Li Fanyu patted his chest, which was feeling a little stuffy; damn, luckily the one I exchanged for in X Space was the uncastrated version, otherwise if it were to be launched tomorrow, people would be furious!
Audi, you deserve it! You are a lighting factory in this time and space!