The big era starts in 1983

Chapter 469

Bai Hao was thinking about how to explain the source of this prototype blueprint.

Unexpectedly, Wang Meilin directly told Bai Hao the answer: "The Ninth Factory's independent research and development, although affected by some foreign technologies, we are firmly on the road of independent research and development. It will last... Let's see what we release when the big guy is complete. Version, tell me how long it took."

Bai Hao came to his senses, and immediately said, "Vice Chief, you are wise."

How did you research this thing.

No need to tell anyone.

And no one is qualified to ask how Bai Hao designed this thing.

People in Xia Kingdom who are qualified to ask questions asked, and to answer, just one sentence:

This is a diesel engine independently developed by Nine Factory.

People outside Xia Kingdom asked.

Well, keep it secret!

Wang Meilin's words not only told Bai Hao how to answer the question, but also told Bai Hao that whoever wants to ask too many questions, he will block it for Bai Hao.

Because Wang Meilin had a vague feeling.

A feeling that I probably understand in my heart, but can't express it.

At this time, Wang Meilin's tone became serious: "Give me a solid background, how long will it take for the machine to be practical, and to be produced in the factory?"

After thinking for a while, Bai Hao replied: "If it is really used for farming, it can be done today. For other uses, it will take at least a year and a half to optimize and improve the details. Among them, there are also some major research projects. For ten individual items, our nine factories held a meeting and discussed them in depth."

"Tell me, I probably understand it." Wang Meilin is also a veteran college student and has been in the Ministry of Industry for many years. He is confident that he knows a little bit.

Bai Hao drew a simple structural diagram on the ground: "The core technology of the diesel engine is straightforward, just four words: air intake, compression, deflagration, and exhaust. We have already considered using electronic control, then we need electronic control, High pressure, common rail, and many sensors, and this does not include the accuracy of the machine itself."

"Also, why this machine can reach more than 50 horsepower, and the same volume can be made by others, not necessarily. One of the core technologies is high pressure. We have dismantled five pairs of wheels, and the injection pressure is up to 200 Pa , and our machine can reach a maximum of [-] Pa."

Wang Meilin nodded, it sounded simple, but in reality, it was so difficult that no factory in the entire Xia Kingdom could do it.

The pressure is high, the natural atomization is good, the atomization is good, the combustion is sufficient, the power is sufficient and fuel-efficient.

Bai Hao continued: "There is not one fuel injector for the common rail, but it is impossible for each fuel injector to be equipped with one fuel supply pipe, so accurate calculations are required, so we choose electronic control, and each fuel injector They can all spray oil of the same quality and pressure, the operation will be smooth and the power will be strong.”

Wang Meilin thumped her head lightly twice.

This seems to be one of the basic principles of diesel engines, but why has no one thought of it for so many years.

Some people may have thought of it, but why no unit has worked hard in this regard.

Bai Hao continued from the side: "Deputy Chief Wang, that seems simple. Several pairs of coupling parts outside a nozzle can withstand a ton of upward pressure, and they must move flexibly without leaking oil. The gap is only two wires. My father He is also an eighth-level fitter, but eight of the ten pieces he processed were unqualified."

Wang Meilin wanted to ask Bai Hao how difficult this is.

But he didn't ask when the words came to his lips. He was going to concentrate on trying to see if there was a way to break through these difficulties.

Besides, before the five pairs of wheels came, Miao Fenglin had a very good idea, and the theoretical test was fine, so he made some small changes to a set of fuel injectors by himself.

Jiong Shuisheng took a few steps back, lit a cigarette, and looked up at the sky at a 45-degree angle.

He didn't look at it, he just listened.

Li Xuesheng, who was in the distance, also came over. After taking a glance from a distance, he moved away, and then watched from afar with his arms folded.

After a few minutes, boot up.

Immediately afterwards, there was a chaotic noise, black smoke billowed from the exhaust pipe, and the diesel engine began to vibrate, which frightened everyone, so they turned off the engine quickly.

Miao Fenglin put on gloves, and immediately dismantled the machine no matter how hot it was.

Take it apart and see that the fuel injector and the entire cylinder body are full of oil stains and charcoal marks caused by insufficient combustion.It only started for a few seconds, and it turned out to be like this.

Why is it so.

Miao Fenglin turned sharply and looked at Jiong Shuisheng who had retreated into the distance.

Someone said: "Did he wait on purpose..."

"Shut up!" Miao Fenglin yelled angrily, "Jiong Shuisheng is a bad mouther, but he's not a villain. If you can't figure it out, think about it carefully, and if you don't understand it, get out!"

Li Xuesheng smiled. He knew that Miao Fenglin had found the key point, but he was still close.

Turning around to the table, he picked up the drawing and rolled it up, still hugging his arms together, clamping the drawing in the crook of his arms, and stood at the position just now to look at it.

What reason, what reason!
Miao Fenglin got into the machine cabin, he looked at the machine inch by inch, and studied it centimeter by centimeter.When he saw the circuit board, he jumped out and glanced at everyone behind him.

Here gathered the backbone of almost the top diesel engine research institute under the Fifth Ministry of Industry of Xia Kingdom.

Finally, when Miao Fenglin saw a person, he stretched out his hand and grabbed him: "Quick, let's see what this is?"

That person is an expert in electronic control, and he knew it at a glance: "The control, looking at the wiring and layout, controls each cylinder. There should be more than this one, and there are others."

Miao Fenglin stood on five pairs of wheels: "Old Jiong, blueprint."

Jiong Shuisheng pointed to Li Xuesheng, but he saw Li Xuesheng standing there holding the blueprint.

When Miao Fenglin ran over, two of Li Xuesheng's students came over carrying a table.

Be an expert.

After studying carefully for 5 minutes, Miao Fenglin smashed his head on the table: "I'm just a pig, stupid pig."

His method worked.

But it destroys the balance between all fuel injectors. In a word, if you want to change, you can change all of them, and you can't change a single cylinder block.How could he not understand this simple truth? Just looking at Jiong Shuisheng, he removed one fuel injector, so only the rear plug of one was changed.

That's a few small changes.

But it disrupted the overall balance.

Manually, and then an expert adjusts the control circuit on the microcontroller.

After half an hour of tossing, it finally started.

Jiong Shuisheng closed his eyes and listened.

At their level, you can hear too many things by listening to the sound of a diesel engine running.

After 1 minute, Jiong Shuisheng shook his head.

At this time, Bai Hao and Wang Meilin also came down, Bai Hao asked: "Why, I feel bad."

"No, it's running more smoothly, but the power has obviously dropped. I guess at least [-] to [-] horsepower have been lost. I can't say he's at fault. A set of improved fuel filter, it is estimated that any oil can be made. I am pursuing the ultimate, and he is pursuing practicality. Now that I think about it, he may be right."

(End of this chapter)