reborn industrial empire

"Haha, okay, let me explain this problem to everyone."

Jin Xiaoqiang calmly pressed down his hands to signal the reporters to calm down, lest they faint in disappointment after he announced the answer later.

"As we all know, when it comes to diesel engines, everyone generally likes to use a high compression ratio, because the ignition point of diesel is lower than that of gasoline. However, if a compression ratio that is too low is used, the temperature of the compressed air will be lower, which will cause

The engine of a diesel car is difficult to start. And secondly, if the compression ratio is too low,

Even after the diesel engine is started, the warm-up engine rotation will not be stable enough, which can easily lead to a semi-dead fire state of the engine. Especially in winter or cold climate areas, the difficulty of starting a diesel engine has always been a big problem. So now more and more

Diesel engine R&D companies are willing to use excessively high compression ratios."

Jin Xiaoqiang smiled and explained to the guy, while the reporters below were murmuring, "Who doesn't know nonsense?" Since you clearly know the characteristics of diesel engines, you actually come up with such a low compression ratio diesel engine. Is it possible?

Is it just for the sake of sensationalism?

Are you really tired of living and are here to fight to the death?

However, at this time, some reporters have woken up a little from their ecstasy. After all, Jin Xiaoqiang's performance in the past two years has been obvious to all. It is impossible for him to humiliate himself like this. Is he prepared?

What other means are there to achieve a wonderful rejuvenation?

Mad, are you going to get slapped in the face again?

This must be the case. The Chuangchi Blue Sky gasoline engine technology he just announced reflects this guy's very powerful ability to think reversely. Now that he is doing the opposite again, this guy must have prepared something more.

Something else that everyone didn't expect: Mad, it seems that he can come back to life again this time.

But fortunately, the question just now was not asked by me. It was embarrassing for the German guy.

At this time, some reporters who had reacted were looking at the German reporter who was still in a state of excitement with sympathetic eyes. It seemed that Jin Xiaoqiang would definitely disappoint him again this time.

I wonder if the guy will be so angry that he vomits blood and dies when the plot changes later?

"But everyone also knows that this high-compression ratio diesel engine also has a disadvantage, that is, its combustion dead center and compression temperature will be very high. This often results in the diesel engine after the injection device injects the fuel.

Before the mixed gas is formed with air, it has already started

It is ignited, and under such working conditions, the final result is that oxygen and nitrogen compounds will be formed locally due to uneven combustion, and excessive nitric oxide will be formed due to premature combustion in insufficiently oxidized parts.

, and micro-particulate matter (also known as pm objects in later generations)

What Jin Xiaoqiang mentioned is exactly the common problem of diesel engines currently on the market, and it is also the main reason why diesel engines are considered to be underdeveloped tractors.

The premature combustion caused by the high compression ratio will make the diesel engine extremely noisy, and the black smoke in the exhaust will make people think that the diesel engine is polluting.

And if you are in a country like China with an underdeveloped petrochemical industry, and the quality of diesel oil is very problematic, you can imagine the vibration of such a diesel engine.

The consequence of this situation is that only fools will buy diesel cars. After all, no one wants to drive a noisy and vibrating tractor as a family car.

"It is for this reason that we have lowered the compression ratio of our diesel engine, which reduces the high temperature and high pressure faced by the combustion chamber. And because the ignition direction is extended, it can also

Fuel and air are mixed more fully and burned more fully. This

In this way, we can reduce the pollution emissions of carbon monoxide, hydrocarbons, oxygen and nitrogen compounds, and solid particles. And because the compression ratio is reduced, our engine can also inject and burn near the dead center on the combustion chamber, and

Because the oil and gas are mixed more fully, the workmanship of this engine

The efficiency will be higher than that of ordinary diesel engines. It also has the purpose of reducing noise and vibration. And at the same time, because there is no need for an excessively high compression ratio, it also reduces many requirements for the strength of engine parts, and we can

Replace the original cast iron materials necessary for diesel engines with aluminum alloy materials

, thereby achieving the purpose of reducing the weight of the engine, thereby saving more fuel. For example, the main journal diameter of the crankshaft of our engine has been directly shortened from the original 60~~ to the current 52m~~, which not only reduces the weight

25 percent of the weight, while also reducing the mechanical resistance of

Jin Xiaoqiang's explanation made the reporters' eyes burst into flames. Damn it, who doesn't know the benefit of lowering the compression ratio of a diesel engine?

It’s not like we haven’t done experiments in this area before, but in the end it was because of what you said before, low compression ratio, difficulty in starting the car, and unstable combustion, etc., and in the end we had no choice but to give up.

Now you'd better go ahead and talk about a lot of the benefits of lowering the compression ratio, but what everyone wants to know is how you do it.

If you can't tell everyone how ugly you are, you're just bragging!

"But, how can you do this?"

For a while, the Japanese reporter couldn't help it. You must know that the Japanese are the masters of the improvement of diesel engines. The first one to develop in-cylinder direct injection technology was Japan's Mitsubishi, and it was also in Japan.

Made from a diesel engine.

Even the in-cylinder direct injection technology that the Germans have touted in recent years is actually just diesel engine technology obtained from the Japanese and then transplanted into gasoline engines.

They also know the benefits of this low-compression ratio diesel engine, but they have never succeeded in it. Now that Huayang Power has actually developed it first, how can they feel happy?

And Jin Xiaoqiang looked at this Japanese little nose and thought in his heart, it's a good thing you don't know that this technology was originally invented by you. If you knew, I would like to take a closer look at how angry you can be.

Sample?

But this is no longer the time to argue with them. Now we have to give some explanations to the reporters below.

"We have equipped this diesel engine with a variable valve lift structure, which is also located near the exhaust valve. Its main function is to open the exhaust valve a little during the intake stroke to allow the exhaust gas in the exhaust pipe to flow backwards. Return the cylinder to increase the suction temperature, and at the same time promote the temperature rise during compression, thereby improving the stability required by the engine during ignition. Moreover, on this engine, we are also equipped with a multi-pneumatic pressure injection device. This new type of porous The fuel injection device contains a variety of injection modes, which can accurately control the injection time and injection volume, and improve the mixing concentration of fuel and air. Moreover, this injection decoration can also perform three front injections, three main injections, and three rear injections in one combustion. times, a total of 9 injections. At the same time, we also equipped this diesel engine with a ceramic ignition plug, so as to ensure the normal starting and stable operation of the diesel engine in a low compression ratio environment."

In just three words, Jin Xiaoqiang explained the problems that many automobile manufacturers have always found difficult.

The reporters below roughly understood Jin Xiaoqiang's solution to the problem of low compression ratio faced by diesel engines. Although these technologies sound very simple, if they want to really do it or solve this problem, these reporters must Do you know how much effort it takes.

This group of people were thinking, from this point of view, for this engine and diesel engine, Huayang Power will probably have to pay a lot of price!

If it were the large automobile manufacturers in Europe, America, and Japan to develop such a project, even if they were to tackle key problems, they would probably have to spend more than one billion in funds.

After all, the cost of human resources in Europe, America and Japan is not low, but the situation in China is completely different. But even so, I am afraid Huayang Power will spend a lot of resources and funds!

However, such a miracle can only happen in China, because their human resources are really too rich, which means they can conquer such a project in such a short period of time.

After all, if you want to solve such a problem in Europe, America or Japan, if you can gather hundreds or even thousands of engineers like Huayang Power to do it together, I am afraid that the company will go bankrupt.

It seems that this diesel engine is really awesome, it can reach 360 degrees without any blind spots!

Many reporters who were relatively slow to react had turned a little green at this time, especially the German reporter who was the first to jump out and question him. He originally thought he would see the big joke between Jin Xiaoqiang and Huayang Dynamics.

Unexpectedly, he was so powerful that his punch hit the cotton wool firmly, which was really going to cause internal injuries to him.

The reporter, who had been mentally prepared for a long time, still felt that it was barely acceptable at this time.

"At the same time, we have also equipped this diesel engine with two turbochargers, one large and one small. These two turbochargers of different sizes will supercharge according to different engine operating speeds. , in this way it can not only ensure high torque during the low speed period, but also maintain high power during the high speed period, and most importantly, it can reduce exhaust gas emissions and save fuel consumption..."!.

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