"The main solution to the power attenuation problem of engines on the plateau is to turbochargers." The next day, when the meeting was held in the engine factory, everyone immediately started to discuss it.
The power attenuation in the plateau area is because of the small air density and low oxygen content. Therefore, under the same intake amount, the air intake inside the engine cylinder is insufficient, which leads to the power attenuation of the engine.
Therefore, turbocharger can solve this problem. On the plain, turbocharger is used to squeeze power, but on the plateau, turbocharger can still increase power output. With a turbocharger,
The engine can suck more air in, but it only needs to blow in more air than in plains, which means that the efficiency of the turbocharger needs to be higher.
As for how high this efficiency is, it depends on the demand.
"However, our current turbocharger has been very efficient, and it is still limited in its potential to continue to improve." Someone immediately expressed his objection.
"I think we need to use a two-stage turbocharger." Someone said: "Using this technology, the efficiency of the turbocharger can be further improved."
An ordinary turbocharger is a first-stage one blade that directly rotates at high speed. After increasing the pressure of the air, it will be bulged into the engine. The efficiency of this supercharger has reached its peak, so I want to continue to improve it.
, two-stage booster must be used.
Divide the turbocharger into two groups, one is a low-pressure turbine and the other is a high-pressure turbine. After the low-pressure turbine blows air once, enters the high-pressure turbine and pressurizes it again. In this way, if there are not enough time to increase the pressure
It's right.
"That's right, two-stage supercharger. During World War II, planes that could fly hundreds of thousands of meters high altitudes were all used with two-stage turbochargers. They could do it at that time, but can't we do it now?" someone said, "
, At this time, I was in high spirits.
During World War II, the aircraft used piston engines, and some were directly naturally aspirated engines. This type of engine could only fly at low altitudes. Once the altitude increased, the engine's power would drop seriously, and the aircraft's power would be insufficient.
, it fell down. Generally speaking, this kind of aircraft flew less than five thousand meters, so most aircraft are equipped with superchargers, whether it is turbocharger or mechanical supercharger, in short,
The engine swells more air, making the engine's performance stronger. Such an aircraft can fly to a height of seven or eight thousand meters. However, if you want to continue to increase the height, a single-stage supercharger is not enough.
, a dual-stage supercharger must be used. Those aircraft that can fly to a height of 10,000 meters are all two-stage turbochargers.
It was possible at that time, but of course it is OK now.
Hearing this, Qin Zhenhua immediately made the decision: "Okay, then you will preside over the development of this turbocharger specially used for plateaus. After it is developed, it will be installed on our engine for testing!"
The person named was stunned and then he was happy again: "Okay, no problem, Director Qin, since you handed me this task, I will definitely complete the task gloriously!"
In the first machine factory, after years of reform, those who were in the position of corpse have already left their posts, and those who are left behind are elites. Moreover, the first machine factory implements flexible wages, which is an important project, once it is done.
After that, the factory will definitely give you a lot of bonuses.
So, since he has been assigned a project, of course he has to make efforts to do this project.
"Director Qin, at present, we have not received the documents from our superiors. Are we just doing this? If our superiors suddenly don't want it, then our R&D investment will be in vain?" Wu Ruihua asked Qin Zhenhua and asked.
.
Now Wu Ruihua is at the age of retirement, but she still refuses to submit to her old age and has been working in the factory. He knows this plateau tank project, but he just feels that the market prospects for such a project are not broad, so he invests rashly.
I'm afraid of getting out of the water. Most countries in the world are in plains at low altitudes, and there are very few countries that need tanks in high altitudes.
Hearing Wu Ruihua's words, Qin Zhenhua shook his head: "Of course not, the superiors will definitely want it. Now, we have to make technical reserves. Even if we don't want it for the time being, we will also want it in the future. If we are not prepared, wait.
When our superiors need it, we can't take out anything. At that time, do we still have the face? Moreover, when we design, we must consider the requirements of modularity. In this way, our tanks are not just
The tank will also become a medium-sized universal chassis.”
Thinking about the neighboring countries having sent their tanks to the plateau, but their place is still blank. Qin Zhenhua was anxious and wishing he could send the tanks to him tomorrow. Now, Liu Dajun has already reported to his superiors about this matter,
There shouldn't be too many variables, so Qin Zhenhua started to arrange pre-research here.
Other technologies are ready-made, mainly engines, and this dual-stage supercharger must be studied, the faster the better.
"Do you have any other ideas?" Qin Zhenhua continued.
"Director Qin, I have an idea." At this moment, another technician spoke: "Now, in the automotive field, we have started to build composite fuel tanks. This fuel tank weighs lightly and can be used as a whole.
Make any desired shape, if we also use composite fuel tanks, we expect to lose about one hundred kilograms of weight."
When he heard his words, someone immediately laughed: "Plastic fuel tank, you really dare to think about it. We are tanks, not cars, so why are we doing lightweight? What if we hit it in one shot? "Composite material,
It sounds tall, but in fact, it's just plastic.
"The fuel tank is not outside the tank, it is inside the tank. Besides, why can't tanks be lighter? In order to go to the plateau, isn't our new tank just to lighter? Reduce the weight of 100 kilograms and put it in
Isn't it better to be on armor?" the technician continued.
Qin Zhenhua made a decision: "Okay, this plan is feasible! You will be responsible for it. Note that our fuel tanks are higher than those of the car. In terms of strength, they must be the same as our iron fuel tanks, and they must also be anti-static.