"The superior officially approved the development plan for the plateau tank." Liu Dajun came to the first machine factory with dust. This time, his face was full of excitement: "For the concepts and ideas we put forward, our superiors also have the same idea and ideas.
All have been approved. Now, the superiors hope that we can come up with an overall design plan as soon as possible. The faster the project, the better."
Sure enough, the tanks of a certain country on the border went to the plateau, which gave everyone a great stimulation. Everyone was discussing the confrontation plan. When Liu Dajun took the idea of the plateau tank of the first aircraft factory, his superiors immediately agreed.
This tank is definitely not comparable to a heavy tank, but its combat capability on the plateau must be the first. In addition to becoming the king of the plateau, this tank will also adopt a modular design.
It provides a suitable chassis for future use as a general platform. Even after reaching the plain and hanging a special module armor kit, it can become a regular main battle tank.
The superiors have already agreed with these concepts. Next, the first machine factory will come up with a specific plan and report it to the superiors. Please ask the superiors to make a decision. After the superiors make a decision, they will be able to enter the development.
Hearing Liu Dajun's words, Qin Zhenhua nodded: "We have entered the development stage of this project ahead of schedule, but now we have encountered a problem."
"What's the problem?" Liu Dajun asked.
"In order to meet the needs of plateau combat, we decided to use a two-stage turbocharger for the tank, which led to the overall height of the engine, which would be much higher, so the overall height of this tank would become all ours.
The tallest among tanks.”
Tanks in the east have always paid attention to their low appearance, which will bring the smallest area of bombing. The lower the height, the smaller the probability of being discovered by the enemy.
Reducing the tank height requires various technical means to be used together. The turret should be short, the driver should drive lying down, and even the tank engine should be flattered, the better. The two-stroke engine developed by Ermao adopts a horizontally opposed method.
, that is also to reduce the overall height of the engine.
But now, if you go to the plateau and use a two-stage turbocharger, the engine height will rise. Therefore, this brings great problems to the overall design.
Liu Dajun frowned: "If the height is too high, it will not be able to meet the needs of the troops. Do you have no other way?"
"Now, we have developed a 12-cylinder 1500 horsepower engine, so we plan to use the eight-cylinder product of this engine, and the power can reach one thousand horsepower, and then switch to a new turbocharger, but now
,We ignored the difficulty of R&D, and there are many technical problems waiting to be solved." Qin Zhenhua said.
Thanks to the advance pre-research, after the pre-research results came out, they discovered that what size of turbocharger is needed to be installed to achieve a breakthrough in plateau power, and how much power pack of the entire tank will be expanded.
For the Eastern powers, the main obstacle to developing tanks is the engine. Whether the third generation of tanks can succeed depends on the development of the Black Panther Tank diesel engine. Now, although this diesel engine is mature, it is used on plateau tanks.
Not suitable.
Too large in size.
"Is there a solution to the problem?" Liu Dajun asked.
"Yes, but this method takes a long time." Qin Zhenhua said.
"What's the solution?"
"Reduce the displacement of the engine, that is, shorten the cylinder bore. The smaller the displacement of the engine, the smaller the size of the turbocharger required." Qin Zhenhua said: "We currently plan to choose a cylinder with a diameter of 132 mm to
Replace the previous 150mm cylinder.”
The tank engines of the Eastern Powers were inherited from the Soviet engines. The initial number was 12150L. The first 12 of this number is 12 cylinders, and the 150 behind refers to the cylinder diameter of 150 mm. Later, other engines
, all of which were improved from this engine, and the cylinder bore was not changed at all. Later, the 150HB diesel engine developed by the third generation of tanks, this 150 also means cylinder bore.
It can be said that tanks of the Eastern power have always used 150 mm cylinder diameters, which are perfect, but now they require the tank to reduce the cylinder diameter!
Of course, this diameter of 132 mm is not a casual one. This is another mainstream diesel engine in China. The technical parameters of the engine of Deutz, the cylinder bore 132 mm and the stroke 145 mm. These data are all more than 150%.
The diesel engine must be small.
At the beginning, Deutz focused on air-cooled diesel engines. When the world was transitioning to water cooling, Deutz also developed the 1015 series of diesel engines. This engine mainly includes three types: 6-cylinder V-shaped layout.
The BF6M1015 supercharged diesel engine, the BF6M1015C with intercooling supercharged and the BF8M1015C with 8-cylinder V-type layout, with a maximum power of 187KW-440KW. As a traditional user, the Beihua Diesel Engine Factory introduced these engine technologies and produced them.
The products are equipped in large quantities on infantry fighting vehicles. As a civilian diesel engine, it has a high life and low fuel consumption, which are its outstanding advantages.
As for the contribution to plateau tanks, the engine has room for the lower part of the cylinder, and the two-stage turbochargers can be placed below, so that the overall height of the engine will not be increased.
However, it is very risky to increase the power of a diesel engine of 600 or 700 horsepower to 1,000 horsepower and meet the requirements of the plateau. After all, this is a new starting point!
Even if the first-machine factory has various experience in improving power, it is difficult to increase it to 1,000 horsepower. Therefore, choosing an 8V150 diesel engine or an 8V132 diesel engine is just like the engine selection meeting of the third-generation tank at that time, full of
Worry about the unknown, but the advantage over the past is that Qin Zhenhua believes more in the team's technology and has already had successful experience. As long as he makes up his mind, he will definitely reach the other side of success. The road is rugged, but they have
This courage to face it.
Of course, there are also benefits. If the eight-cylinder product can be increased to 1,000 horsepower, and twelve-cylinders will be built, it will be 1,500 horsepower. Moreover, the size is even smaller, and it is a derivative of civilian diesel engines.
The fuel consumption rate is not high, so you can reserve another power system for the third-generation tank.
"Since you have made a choice, then let's do it." Liu Dajun said to Qin Zhenhua: "I don't know how to do research and development. If you take these problems out, I can't do anything about it."
"We need to ask about the attitude of the army." Qin Zhenhua said.
"The army's attitude is to fully support the research and development of the first machine factory." Liu Dajun said.