Fang Dejun took the component sample sent by Chu Tian with a solemn expression. He is well aware of the importance of these components to the new products of the diesel engine factory, so he does not dare to be careless.

The first thing he did was a power-on test. On the bench in the laboratory, Fang Dejun carefully attaches the components to the car's battery. As the current is turned on, the components are activated instantaneously, emitting a subtle humming sound.

Fang Dejun stared closely at the reaction of the components to see if they were working properly. His eyes are focused and sharp, as if he can see through the surface every subtle change inside the components.

"Chief Engineer Fang!! All voltages in the electrical controls are normal, and all readings are normal! The inspector saw that the circuit board was normal after being powered on, and couldn't hide the ecstasy in his heart and shouted.

After all, Fang Dejun is an old engineer, and he has seen a big scene, he smiled and waved his hand: "Got it, I'll go to the next test right away." Get ready for installation testing! Pay attention to check the cylinder pressure data, fuel injection data! ”

After the second power on, Fang Dejun and a group of technicians became nervous.

He personally installed the components on the prototype of the new product, carefully every step of the way, for fear of any mistakes. After the installation was completed, he started the diesel engine. With a roar, the diesel engine was up and running.

Fang Dejun carefully observed the performance of the diesel engine. He saw that all the cylinders were starting to work in an orderly manner according to the design requirements, and the roar of the machine appeared to be unusually smooth. At this moment, he couldn't help but feel a sense of accomplishment in his heart.

"It's moving! It's moving! The launch was successful! ”

"I'm heavenly! It's really moving! ”

But he knew that the test was not over and that there could be no slack.

The inspector then proceeds to check the readings of the various types of equipment. They are busy recording the values on the dial, and each data is related to the performance and stability of the components. Fang Dejun also observed carefully from the sidelines, asking about some key data from time to time.

And the roar of the engine alarmed the people who were in the meeting.

Introduce Wei Changkun, director of the Power Research Institute of the Provincial Academy, who is in his sixties, dressed plainly, as if he is an old teacher, although he is only sixty years old, his hair is gray.

The movement of the diesel engine is too large, plus it is done on the test bench, and there is no noise reduction equipment. The diesel engine is on the test bench, running untethered.

Director of the Power Research Institute of the Provincial Academy, Wei Changkun looked surprised: "Director Xu? This sound is like the sound of a diesel engine, haven't you finished the design? ”

Xu Fang nodded: "It's really not finished, we have tested it several times, but there is no movement, and the engine can't start normally at all." ”

Wei Changkun, director of the Power Research Institute of the Provincial Academy of Sciences, is an old expert with a good reputation in the industry.

Although he is in his sixties, his mental state is still full, and his enthusiasm for scientific research has not diminished in the slightest.

He dresses plainly, giving people an intimate and low-key feeling, as if he is an old teacher who has been deeply involved in education for many years.

Although he is only just entering the sixtieth year, his hair has turned gray, which may be the mark left by years of dedication to scientific research.

Wei Changkun's professionalism and profound experience have enabled him to have unique insights and keen observation in the field of power research.

The roar of the diesel engine was like a familiar symphony to him, and every note contained a wealth of information.

So when the diesel engine was running untethered on the test bench, he immediately noticed something unusual.

He was surprised by the words of Director Xu Fang, because according to their schedule, the design of the diesel engine did not seem to be completed.

However, the machine was already making a powerful roar on the test bench.

"Let's go, let's see!"

Wei Changkun walked out of the conference room curiously and followed the sound, wanting to find out. Xu Fang hurriedly got up, and she also walked out with the experts of the other expert groups.

When he saw the engine on the test bench being tested, a flash of surprise flashed in his eyes.

"Are you really moving? It's done?! ”

The moment he saw the engine, Wei Changkun had nothing else in his eyes, he hurriedly pushed the door in, and Xu Fang also hurried in.

Seeing someone coming in outside the door, Fang Dejun stepped forward to explain the situation.

The moment Xu Fang entered the house and saw Chu Tian, she suddenly remembered that today was the day when Chu Tian delivered the samples!

"You really got it out?" Xu Fang was stunned.

Chu Tian smiled, he nodded and said, "Of course, when did I say something big?" ”

Fang Dejun also took the opportunity to explain: "Yes, Director Chu sent some samples on behalf of the electric element factory, and when I saw the samples, I wanted to give them a try, so I carried out an installation test on the test bench. Who would have thought that he would come over for a power-on test at one time! So I had itchy hands and wanted to try to install it, but I didn't expect it to be real! ”

Wei Changkun listened to Fang Dejun's explanation, and couldn't help but feel shocked in his heart. He knows that the requirements of the electronic control board are very strict, and most of the similar products abroad are still in the initial stage, and there are many problems in terms of stability.

However, the engine in front of me is running so smoothly that it seems to be a fairly mature product.

He couldn't help but step forward and take a closer look, and found that every part of the engine was working in an orderly manner.

The high-speed solenoid valves that can be seen on the market today often have problems with jamming and instability, but these signs are completely absent on this engine. The power output is stable and strong, and there is no situation of strong or weak.

Wei Changkun felt an indescribable excitement in his heart. He knows what that means – their project has made a breakthrough!

Originally, they just expected to be able to make the diesel maneuver even if it was successful, this is to try to catch up, solve the problem, and the project is two, one is the position EFI, which belongs to the previous generation of technology, the technology is mature, but for the country, it is also quite advanced.

The other is the second-generation time-based EFI technology they experimented with. The second technology uses a high-speed solenoid valve that they developed in reverse.

Some mechanical adjustment mechanisms in the traditional fuel injection system, such as ring gears, sliding sleeves, chutes on the plunger, etc., make the oil supply plunger only assume the role of oil supply and oil pressing.

The oil supply volume and the oil supply time are controlled by the high-speed solenoid valve, wherein, the closing duration of the high-speed solenoid valve determines the fuel injection volume, and the closing time determines the fuel injection timing.

This is just a test, first make some engines that can be used, solve whether there are problems, as a technical reserve.

Now it seems that they have far exceeded that expectation.

Not only is this engine moving, but it is running so reliably that it is ready for mass production!

He immediately turned to the members of the expert group and said, "Quick! Let's help put it to the test! We need to record the data of this engine in detail! ”

The experts also took action and started to get busy. They knew this was a historic moment and that their research would revolutionize the entire field of power.

The entire testing process lasted several hours. When the last test was completed, Fang Dejun finally breathed a sigh of relief.

He knows that the performance of this batch of components has met the expected requirements and can provide strong support for the new products of the diesel engine factory.

He couldn't help but look at Chu Tian with admiration in his heart, and sighed at the strength and talent of this young man.

And Wei Changkun's wrinkled and oily hands caressed the engine as carefully as if he had seen his lover.

In the deep, wrinkled eye sockets, there were rare tears.

"It's done...... The Western monopoly of EFI technology has always been ...... We completed the second generation of development in one go...... We catch up with the world's advanced level of the big team! We are no longer the country that is extremely backward. Wife...... It would be nice if you could see this day!! ”