All round car designer

Chapter 97 Did You Really Design It?
Soon, Liu Neng and a group of technical backbones from the engine project team appeared in the conference room, while Zhu Zhijun was waiting outside for Zhou Fei's arrival.

"Mr. Liu, didn't you say there will be a meeting the day after tomorrow? Why did you call us here now?"

"That's right, the materials on hand are not ready yet."

As soon as the group sat down, two people asked curiously.

"I didn't want to hold a meeting, but Lao Zhu asked you to participate in the review." Liu Neng replied in a low mood.If it wasn't for the EFI technology, he wouldn't want to waste time here.

"What review?" Someone asked again.

"It is said that a college student designed an engine himself and wanted to use it in our Feiteng car. Let us review this engine. I don't know what Lao Zhu thinks." Liu Neng continued to answer.

"College student? Also designed an engine? It's for motorcycles! Hahaha."

"The motorbike engine is not that simple. It took us three years to complete the work. He is a college student, and he can design the engine by himself?"

"What's the point of reviewing this? Why don't we discuss our technical solutions if we have the time!"

When everyone heard the words, they couldn't help discussing, and they didn't take today's review seriously at all.

Not long after, Zhou Fei took the computer and walked into the conference room accompanied by Zhu Zhijun.

After seeing Zhou Fei's appearance, these people didn't take this matter to heart even more. They didn't even care whether Zhou Fei came or not, and started chatting on their own.

"Why did I call you here today? Old Liu must have already told you. During the review, everyone should be more correct and not discuss privately!"

Looking at the atmosphere in the conference room, Zhu Zhijun couldn't help frowning, and said sharply.

After Zhu Zhijun said this, these people shut their mouths in a sensible manner, and began to focus on Zhou Fei.

"Everyone, this is the design manual of my engine. You can read it first. It will be easier to understand after a while."

As Zhou Fei said, he delivered the printed materials to everyone, but these people just glanced at the cover, and then put them aside casually.

Obviously, they are not interested and just want to end this review early.

Zhou Fei was not annoyed either. He is a college student who has not yet graduated. It is normal to encounter such doubts. He just needs to use his strength to return it.

"Then, let's start." Zhou Fei then clicked on the first PPT, "First of all, I will give you an overall introduction to the EA888 four-cylinder engine designed by me..."

Zhu Zhijun and Liu Neng, who were sitting at the side, looked at the [-]D model of the engine on the screen at the same time. From the perspective of the model as a whole, it did seem to be the same thing, and the drawing of each part was successful.

But just like Zhu Zhijun said, the development of an engine does not depend on how realistic your model is, but depends on whether it can be mass-produced and its specific performance after mass production.

After only one glance, Liu Neng turned his gaze back. In his opinion, this is another typical representative of "PPT car making".

Not only Liu Neng, but several other technicians didn't pay attention to Zhou Fei's speech, either looked around, or lowered their heads to play with their mobile phones, completely forgetting Zhu Zhijun's words just now.

Being idle and bored, Liu Neng simply picked up the design manual on the table. He wanted to look through it casually, but who knows, Liu Neng just glanced at the catalog and immediately became interested.

In the catalogue, Zhou Fei listed the design process of each important component in detail, from the fuel injection system, to the supercharging technology, and even the design of the intake manifold, oil pump and balance shaft, etc., all of which are listed in the catalogue. have.

It doesn't look like a fool at all!

Liu Neng raised his head and glanced at Zhou Fei, then quickly turned his attention to the manual, flipped through it, and found the design description of the "intake manifold".

"...By controlling the opening and closing of the intake manifold flap, the charging requirements of the engine under different working conditions can be met. For example, when the engine is in low-speed conditions, the lower intake passage is closed through the intake manifold flap, so that It can reduce the cross-section of the airflow to increase the airflow velocity, and at the same time combine the special design of the piston top to effectively form a strong intake vortex, which is conducive to the formation and atomization of the mixed gas..."

The more Liu Neng looked at it, the more excited he became. He didn't expect that the intake manifold could be designed like this!
Due to the cross-sectional area of ​​the intake manifold, the uneven atomization of the mixed gas under different working conditions is already a common problem.

When Liu Neng was in charge of the engine development project, he wanted to take the opportunity to solve this problem, but he tried many methods, but he couldn't take into account the cross-sectional size under both low-speed and high-speed working conditions.

But Zhou Fei only used one flap to open and close, which perfectly solved this problem!

What a genius idea!
"...In order to solve the serious problem of engine oil aging, this engine creatively adopts a variable displacement oil pump, through the relative movement of two pump gears inside the oil pump, to adjust the oil supply of the pump gear, and then to achieve Oil pressure adjustment..."

"...Adopts the design of double balance shafts, located on both sides of the lower end of the cylinder block, driven by the crankshaft and the chain. The centrifugal force generated by the rotation of the two balance shafts is just opposite to the direction of the centrifugal force generated by the crankshaft, thus offsetting the large Part of the vibration, enhance the dynamic balance state of the engine, reduce noise..."

Under each project, Zhou Fei gave a detailed introduction to the innovation, and also provided complete [-]D and [-]D diagrams for easy understanding.

Liu Neng roughly counted. In the entire design manual, there are at least 10 innovative designs of Zhou Fei. There are several design principles of parts, but Liu Neng didn't understand them for a while, so he needs to compare them. Pictures, carefully figured out to understand!
This is not the "play house" that Liu Neng thought before, but a truly cutting-edge engine!
Among other things, Zhou Fei has cleverly solved the problems of constant cross-sectional area of ​​the intake manifold and oil aging. This engine is enough to attract the attention of any car manufacturer!
This young man...is he really that powerful?
At this time, Liu Neng looked at Zhou Fei, no longer the previous disdain and contempt, replaced by admiration and shock!

The afterlife is terrifying!

If he hadn't carefully read the design manual, Liu Neng would not have believed that such an advanced engine was made by a college student!

"...In addition, in terms of engine displacement, I have set up two versions in total, 1.8L and 2.0L, all of which use electronic injection. My report is over. Do you have any questions?"

Zhou Fei looked at the crowd and asked with a smile.

A few technicians look at me and I look at you. They haven't heard much from the beginning to the end. What do you let them ask.

"Is this engine really designed by you independently?" Liu Neng stared at Zhou Fei and asked with burning eyes.

(End of this chapter)