Chapter 634: The Strange in the Engine
Mia, who listened, opened her eyes wide and looked at Wang Xiaoyu incredulously, and Wang Xiaoyu spoke in simple terms and said it very clearly.
In the past, diesel engines were naturally aspirated, and if you want to increase power, you must increase the displacement, so in the past, it was often thirty or forty liters of displacement, but the performance of the engine was not particularly high.
Then, the turbocharging technology came out, under the same displacement, as long as more air is blown into the cylinder, the engine can be sprayed with more air to participate in combustion, so that the power of the engine will naturally increase. Now, the continuous improvement of engine technology is mainly due to the development of this supercharging technology.
However, no matter how the supercharger increases the performance, there is a limit, it is subject to the basic principles of physics, take the most commonly used exhaust gas turbocharging, that is the need for the exhaust gas of the engine to push the turbine blades, the performance at low speed can not be better, only at high speed, can there be strong thrust, and the supercharger, to consume the power of the engine, and so on.
There are various differences in various ways, and now, turbocharging, although it is getting more and more powerful, it is still impossible for a tank engine to easily achieve a power output of 1,500 horsepower.
So, at this time, the wonderful French came up with a plan, their supercharger, not with exhaust gas, not with mechanical supercharging, but with a small gas turbine!
It is just a V8 engine, which is also the reason for its small size, and the V8 engine mutiny, is a gas turbine codenamed TM307B, this gas turbine, pushes the supercharger, so that the performance of the supercharger is greatly enhanced, and ultra-high pressure is realized.
The higher the pressure, the more fuel can be injected in it, which greatly increases the power output of the engine, and 1500 horsepower can be achieved in this way.
It can be said that there are many benefits, this special supercharger has nothing to do with the diesel engine, so even at low speeds, it has quite strong power, improves torque, and makes the acceleration of the tank excellent, but at the same time, there are some disadvantages that come with it.
First of all, of course, is the overall reliability.
A single diesel engine, or a single turbine, the reliability may be okay, but the combination of the two, the reliability is definitely greatly reduced, and at the same time, the structure of the engine is greatly increased!
After all, the combined power is to use a gas turbine to push the turbocharger and enhance the supercharger's supercharging capacity. Its TM3O7B itself is a gas turbine that can work independently, so it must be equipped with a set of relatively independent oil supply, air intake and lubricating oil pipelines, and this thing also needs to be started by itself in order to work, so it must also have an independent starting system and control system.
Therefore, this power package has a complex structure, the failure rate is conceivable, and for users, it is not only necessary to maintain the diesel engine, but also to maintain the gas turbine! Moreover, the price of gas turbines is not cheap!
In short, this power system, in the eyes of insiders, is a chicken rib, but this cannot deny the efforts of the French, because if you want to achieve 1,500 horsepower power, it is not so easy to achieve, and the sword is just a plan.
Just like in order to develop a turbofan engine, they also worked independently, and finally came up with a unique single-rotor engine. Although the performance is not strong, it can be used.
"The French really have ideas." After listening to Wang Xiaoyu's introduction, as a technician of MTU company, Mia also felt that her eyes were opened: "What they have been talking about ultra-high supercharged diesel engines, we thought they had come up with some advanced turbochargers, but they were using this way to achieve power increase." ”
Mia is mainly engaged in superchargers, has accumulated a wealth of experience in this area, and also knows how many difficulties there are, it is not so easy to continue to increase the pressure of the supercharger, and the French originally used gas turbines as superchargers!
"Yes, according to their plan, this gas turbine can also be used alone, it can be used to start the engine, and it can also be used as an auxiliary power system, in short, their whimsical idea is still eye-opening." Qin Zhenhua said: "I just don't know what the actual effect will be. ”
"The actual effect is definitely not as good as our diesel engine." Mia said: "Such a complex power, they can use it for their own use, if it is exported, it must be that no country is willing to use it, it seems that we have to make a backup plan in advance, in case the French export this tank, we have to replace it with our MTU company's engine." ”
"If the French were here, they would be mad." Qin Zhenhua said with a smile.
Mia is not wrong at all, such a complex power unit, maybe the French themselves can maintain it, but, exported to the countries of the third world, it is estimated that there are no such maintenance personnel, they can't do it at all, the French want to export tanks, and finally have to install German engines, for the arrogant French, this is definitely a big blow.
Qin Zhenhua also deeply agreed with Mia's proposal.
"Mia? Are you here? Hey, Mr. Qin, here too? Who is this beautiful young lady? "Just then, suddenly, someone walked up to their table and said hello.
"Mr. Schultz?" Qin Zhenhua glanced at the other party, and immediately recognized it, the person who came was the sales manager of Mercedes-Benz Automobile Company, the last time he came here to negotiate, he broke up unhappily, this time, the other party actually took the initiative to find him?
Coincidentally? Of course it's not like this, the other party is coming over like this now, either Mia revealed it, or the other party found out the news, in short, since the other party is here, it means that the other party can't sit still.
Back then, they originally thought that they had decided to eat their own side, and they had to give whatever price they wanted, who would have thought that in fact it was not the case, they turned to Steyr Company, and now, the agreement with Steyr Company is gradually being finalized, Mercedes-Benz Company, it is estimated that it is in a hurry, right?
The last time they took the initiative to come to the door, they were on top, that is, they thought that they had no choice, Mercedes-Benz company, of course, it was arrogant, but now, Mercedes-Benz company has found that it is a missed opportunity, once they fully introduce Steyr technology, then they do not need to find Mercedes-Benz company to cooperate, they will lose a huge market.
Now, pretending to meet by chance like this, it is estimated that he is here to probe his own tone, just right, you can pretend to be forced.