big country car

"The same is true for the engine. The intake and exhaust are realized through the opening of the valve. All existing engines have a fixed intake and exhaust method. In this way, all working conditions cannot be taken care of. Simply put, It’s just that at low speeds, the valve opening is too much, and at high speeds, it’s not enough.”

"In order to make the engine work better and save fuel at the same time, many automotive engineers are researching to make the opening timing of the valve variable. It was not until last year that Honda announced their vtec technology. There are three valves on one side of each cylinder. Cam. The three types of cams correspond to the three types of rocker arms on the other shaft, so that the valves can be changed. When the engine speed reaches 4500 rpm, the valves will be opened earlier. This kind of engine is very Characteristic, it behaves plainly at low speeds, but is violent like a raptor at high speeds.”

"However, this technology also has disadvantages. It cannot be continuously variable. 4500 rpm is a threshold. Moreover, these technologies are registered with patents. If we don't get the operation of Honda, we will rashly use their technology , there will be a lawsuit.”

When talking about this, Chen Dongqiang shook his head: "We used to start as a copycat, but in the future, we have to pay attention to patent rights. However, Xiao Qin can imitate it now and entertain himself, which is also very good."

These words not only showed that Chen Dongqiang knew the world's advanced technology, and he was able to belittle Qin Shaoyou, splashing dirty water, which was superb.

These two reporters must have been invited by Qin Shaoyou, and they just happened to be on eye drops.

"Yeah, Chen Gong is right." At this moment, Qin Shaoyou turned around and shouted to this side: "The variable valve that can only be changed at 4500 is not an innovation at all. , Those Honda engineers don’t want this technology to be used at all, it’s just a gimmick, think about it, who usually drives more than 4500 rpm?”

Except for racing drivers, ordinary drivers can only step on the engine to more than 3000 rpm, [-] rpm, which is to tell everyone that I have this technology, but I am not very confident in its reliability. So, usually use less.

What attitude does Qin Shaoyou want to express?Isn't his variable valve a fake Honda company?

"The set we have improved now uses a different principle. On the camshaft of the valve, a computer-controlled hydraulic mechanism is added to realize the angle adjustment of the camshaft within a certain range, thereby controlling the opening and closing of the valve. The closing time has been adjusted. This system is continuously adjustable." Qin Shaoyou said: "I can say that this is the first in the world, so after the successful experiment today, you need to apply for a patent to avoid being preempted by others. .”

Although they are all variable valves, the technical routes are different. Honda's is equivalent to variable valve lift technology, and my own is called variable valve timing technology.

&nson University invented a more advanced intake and exhaust valve continuously variable valve timing, and they also applied for a patent.

Since Qin Shaoyou came here through time travel, of course he wanted to bring the automobile technology of his motherland to develop by leaps and bounds. For all kinds of patents, those that should be pre-registered must be preempted.

In the past, it was all about small troubles, but it is different from now on. This technology will be widely used in all cars in the future, which can significantly reduce fuel consumption and reduce exhaust emissions. Now, Qin Shaoyou has to put Get this thing out and announce it to the world, it's my research!

Chen Dongqiang's face darkened: "What did you say? The hydraulic mechanism controlled by the computer makes the valve continuously adjustable? How is this possible? Where did you get the relevant equipment?"

The good things that Qin Shaoyou got back were all placed at home, and it was not until this morning that someone helped them move to the scene.

"The factory only allocated 5 yuan for research and development to me, and some people didn't want me to get it. So, I had no choice but to go out and pick up junk. My luck was pretty good. Yes." Qin Shaoyou said: "Now, we are starting to install the electronic injection system. Mr. Chen, please continue to explain to the reporter comrades what is the electronic injection system and what is more advanced than the carburetor engine."

Chen Dongqiang's face was a little ugly.

What are you doing?Be a free commentator for Qin Shaoyou?Moreover, Qin Shaoyou is ready.

He already got this EFI system, or is he picking up junk?How can it be?

Chen Dongqiang didn't know how Qin Shaoyou got this kind of system. When the group of cables and other things were taken out of the box, An Ran's eyes widened: "Is this the stuff you put in your house?"

"That's right, for this system, if you purchase it, it will cost at least 2 yuan. The children of the poor will start their own families early, so save as much as you can."

"Chen Gong, I don't quite understand, could you please introduce me?"

Looking at the recording equipment handed over by An Ran, Chen Dongqiang could only smile awkwardly, and then said: "Our gasoline engine inhales a mixture of gasoline and air, and the carburetor is used for this job. How much mixed gas each cylinder can inhale depends on the suction force in the intake stroke, while the EFI engine uses a high-pressure oil pump to directly inject fuel near the intake manifold, so that the atomization is better, and the injection is controlled by a computer The quantity can meet the needs of the engine just right, save fuel and increase power."

After Chen Dongqiang finished the introduction, he felt aggrieved in his heart, so he continued to say: "However, this technology is very high-end, and it is currently only used in luxury cars, such as Audi, which uses EFI technology. Ordinary cars, It is enough to use a carburetor. This technology is temporarily unnecessary and a waste of resources.”

Chen Dongqiang knew that Qin Shaoyou already had these things, so he simply said that these things were useless.

"Chen Gong is right." Qin Shaoyou has already started to install the intake manifold, and while installing it, he chatted with this side: "After our engine is developed, we can guarantee that it will be in the leading position in the world for at least ten years. , Therefore, we are storing power for the future, not for use now. We can't just follow behind the ass of foreigners, we have to catch up and surpass."