big country car

"Advanced automobile factories in all countries in the world use this method, using one generation and pre-researching one generation, and our automobile factory in S city should do the same. Now we have the localization of Santana engines, which can meet the needs of recent years. Our current research and development projects are for technical reserves, which can be used at any time when needed, otherwise, we can only pick up foreigner's trash forever."

Chen Dongqiang's face was as ugly as it could be.

Even when he was arguing with Gao Zhongcheng, he never felt so embarrassed, every time he said something, it hit the opponent's arms, he became a clown!

But he can't get angry yet, in front of the reporter, he has to keep smiling and be graceful, otherwise, the reporter's pen doesn't know how to write about him.

Be calm, you must keep calm, if you get mad here, you will definitely leave a bad impression on the reporter.

With such thoughts in mind, Chen Dongqiang tried his best to squeeze out a smile again, but this smile was uglier than crying.

At the beginning, Qin Shaoyou drilled holes in the intake manifold, which became a joke in the factory. Looking at it now, he stuffed the nozzles of the EFI system in those drilled holes. It was just right, and it was definitely carefully calculated. ah!

"Xiao Qin, didn't you propose to use a turbocharger at the beginning? What about a turbocharger?"

He decided to take the initiative.

This EFI system, he said, was picked up from junk, but what about the turbocharger?It is absolutely impossible to pick up junk and take things, it must be matched.

"Here." Qin Shaoyou said, and took out something from his treasure chest. When he saw it, Chen Dongqiang couldn't help laughing. He was very happy this time.

"Xiao Qin, are you kidding me? Who has seen such a small turbocharger?" Looking at the hand-cranked hair dryer in Qin Shaoyou's hand, Chen Dongqiang couldn't help being excited for a while, and finally found a new breakthrough .

"Chen Gong, it seems that you understand these things very well. How about explaining the difference in the size of turbochargers?" Qin Shaoyou said.

Qin Shaoyou actually asked himself for advice?Is there a hole in it?

Chen Dongqiang didn't know, but, in front of the reporters, Chen Dongqiang certainly couldn't lose his air as a technical expert.

"If you want to increase the power of the engine, you have to blow in more air and inject more gasoline. The efficiency of this turbocharger depends on how much air it can blow in." Chen Dongqiang said: "The blades of the turbine The bigger it is, the more air it blows in naturally. If you want to double the power of the engine, you can't do it with such a small turbo. According to my estimation, you can increase the power in this way 30.00% is not bad."

Qin Shaoyou nodded: "You are very good, do you know what the disadvantages of turbocharging are?"

"The disadvantage... The disadvantage is of course overheating. That thing is blown by the exhaust gas from the exhaust pipe. Under high operating conditions, the entire turbocharger may be burned red."

"anything else?"

"Life, the working environment of this thing is harsh, so the turbine may break after running for tens of thousands of kilometers." Chen Dongqiang continued.

"anything else?"

Are you making things difficult on purpose?Chen Dongqiang racked his brains and couldn't think of any other shortcomings. He continued to smile: "I really don't know, Xiao Qin, tell us something about it?"

"Well, Mr. Chen, since you are so open-minded to ask for advice, I will give you a popular science. If you meet a colleague in the future, you won't lose face."

Qin Shaoyou's words made Chen Dongqiang's face darken again, do I want to ask you for advice?I am the most skilled person in our technical department. If I don't know something, you certainly don't know it. I say this now to see you make a fool of yourself.

"Chen Gong, you heard clearly, the biggest shortcoming of this turbocharged engine is the turbo lag effect."

There are still so many people listening at the scene. Everyone has never seen this kind of engine. How do you know what is the turbo lag effect?

"Chen Gong, have you heard of the turbo lag effect? ​​You didn't answer it just now, maybe you forgot. Now I remind you, you should remember it. After all, you are the person in charge of a group. Knowledge, don’t you still know?”

Qin Shaoyou's words made Chen Dongqiang feel sick for a while, this guy is here to tease people on purpose!

answer know?Then he will definitely have to get to the bottom of it. If he keeps asking, he can't answer it, which is embarrassing.It would be even more embarrassing if you don't know the answer.

Chen Dongqiang blushed from holding back, not knowing how to answer.

"I didn't think about it, then think about it." Qin Shaoyou held his turbocharger: "I installed it first, and I didn't calibrate it in advance. I don't know if there will be an error. This thing is [-]mm Can't install it either..."

"I don't know, just tell me." Chen Dongqiang went all out to see what Qin Shaoyou had to say.

"Oh, you don't know, how is it possible? You..."

"Well, you don't need to mock me here. If I don't know, I just don't know. Confucius taught his disciples not to be ashamed to ask. I don't feel ashamed to ask you now."

"Okay, I'll tell you, you have to remember clearly, and you can fool them if you show off to the Germans in the future."

"Speak quickly!"

"Our turbocharger is propelled by the exhaust gas emitted by the engine. Compared with the previous superchargers, its biggest feature is that it does not waste the energy of the engine. However, because it is propelled by the exhaust gas, So, it will run a little later than the engine."

"For example, when the driver steps on the accelerator, the engine needs to speed up. At this time, the exhaust gas emitted by the engine increases, which urges the impeller to rotate faster and blow in more air. This process may take a second or two. The driver feels that the car's reaction is half a beat behind, and that's turbo lag."

"Chen Gong, do you understand?"

In fact, he half understood what he heard, but he quickly realized: "What does that have to do with you little thing?"

"If you want to reduce the hysteresis of the turbo, you need to blow up the blades of the turbocharger when the exhaust gas emitted by the engine is still very small. My small inertia turbocharger can ensure that the engine runs at [-] When turning, the supercharger will be blown up, and at [-] rpm, the supercharger can be blown to the maximum speed of [-] rpm, allowing the engine to output the maximum torque." Qin Shaoyou said: "In this way , the driver steps on the accelerator a little, and the power of the engine will burst out quickly, reducing the hysteresis effect. This kind of car will accelerate faster and be more fuel-efficient."