Automotive Black Technology Chapter 681: : B-01, Heart of the Dragon!

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Somewhere in South China, 850462 Military Research Institute.

Lu Mingde listened carefully to the progress report from the Seventh Division. Although he had great expectations for Zhengxin's research and development capabilities, he was still surprised that the main engine design was finalized so quickly.

"So, it only took them sixteen days to complete the main design?"

Wang Xiang on the other side of the phone was silent for a moment, and then said word by word: "No! Mr. Lu. To be precise, it took fifteen days to complete the initial test machine A-01, but A-01 is still being tested. It was proved to be a failure. They... completed the improved model A-02 in just one night."

Oh my god!

They only spent sixteen days on a problem that the institute had not solved for half a year! Moreover, the first fifteen days seemed to be in the fault-tolerant stage. It only took one night to achieve a key breakthrough!

How terrifying is this!

"Parameters! How are the parameters?!" Lu Mingde asked anxiously, suppressing the shock in his heart.

Wang Xiang also had contact with Lu Mingde in other projects. In his impression, this leader who was engaged in high-level military scientific research had always been calm and sharp.

He has never seen Lu Mingde so excited.

"I will send you the specific project progress immediately, and I will briefly report the parameters to you. The preliminary measurement of the power of A-02 is 1350 hp, the rotation speed is 2750 rpm, and the torque... is at 2700 rpm , can output 4100NM! ”

Hearing this set of data, Lu Mingde's mouth opened slightly...

Like a dehydrated fish, he took a few deep breaths, "Oil... where's the fuel consumption?"

"Each cylinder is 2.2L, and the total displacement is 23.6 liters! But according to Li Fanyu, this data is not accurate."

Hearing this, Lu Mingde quickly asked nervously: "What should I say? Are there any flaws in A-02 that have not been resolved?"

"That's not true. He said that A-02 only laid the foundation, and there are many performance-improving designs that have not been used in A-02. He is now using A-02 as the basis to upgrade this version of B-01 The design is said to simplify the oil tank system and change the separate cylinder oil supply system used on the A-02 to a common oil tank direct injection to further reduce the size of the engine oil supply system and improve the reliability and ease of maintenance of the oil supply system. . In addition to adding a cooling system integrated into the engine body and improving the engine material, it is said that after these changes are completed, the performance will be improved again."

"..."

Lu Deming held the phone and didn't know how to reply. He felt like he was about to have a heart attack...

Tiancheng, Zhengxin R&D Center.

Li Fanyu has led his team to finalize the design of B-01 with ease!

After the A-02 passed the test and obtained the parameters, I felt that the performance of this product was simply too weak, right? The maximum power is just over 1,000 kilowatts, which is not much different from the current main battle tank 99-G!

The main battle tanks currently in service abroad generally have a power of more than 1,200 kilowatts and a horsepower of more than 1,500 horses. This standard can be said to basically represent the highest level of military high-horsepower diesel engines currently in service. For example, Russia's T-90 and Germany's Leopard 2 basically have this parameter.

However, these tanks are all active tanks.

What project have you received now?

China’s next generation main battle tank engine!

Wouldn’t it be a shame if the heart you made couldn’t exceed these standards? ?

It was with this mentality that B-01 was born.

Different from the A-02’s experimental engine feasibility and determination of the general design direction, the B-01 can be said to be heading straight for finalization! For B-01, Li Fanyu directly integrated the material of X super aluminum alloy into the design process. Of course, it is based on the weakened version of X aluminum alloy standard that can be produced by ourselves.

As for the requirements of two sets of one main and one backup oil supply system, three sets of cooling systems, and two sets of lubrication systems given by the final assembly and 850462 Research Institute, Li Fanyu directly rejected them.

The strength of X aluminum alloy gave him absolute confidence!

Even if you change your own production methods, the strength of X aluminum alloy can surpass any other metal material currently on the market. When an engine is made of such a material, do you still have to consider the problem of slight damage to the engine of the tank during combat?

Take the weakened version of No. 4 X alloy he plans to use on B-01 as an example; tensile strength of 824Mpa, yield strength of 753Mpa, density of 3.1g/cm, Mohs hardness of 9.8...

As long as the engine part is not directly penetrated by artillery fire, do we still need to consider the issue of vibration damage?

Does not exist!

With such awesome physical properties, if the B-01 engine under the armor is damaged, there is only one possibility - it is directly penetrated by an armor-piercing projectile and hits the engine.

However, given the rear layout of the tank, the probability of this happening is the same as a sniper hitting the enemy's pupil with a sniper rifle from a distance of one and a half kilometers. It is a small probability event. But if such a situation really happens, I'm afraid that many backup systems will be useless. It is better to reduce the weight of the engine assembly and improve the tank's mobility.

So after thinking and discussing with Wang Yu, he decided to adopt a bolder design.

Based on this idea, he defined the fuel supply system as a set of public direct injection oil tanks, which were integrated with the engine in a modular manner. There are many benefits to doing this, the two most important ones are that while reducing weight, it also improves the convenience of rapid replacement of accessories and logistical maintenance during wartime.

As for the cooling system, in fact, the heat dissipation performance of X aluminum alloy itself is excellent.

Normally, only an air-cooling system is needed to ensure the heat dissipation of the engine under high-power operation. But modern tanks must consider concealment, which is to avoid being detected by thermal observation systems in the air and on the ground. Driving with air cooling will dissipate a large amount of heat, increasing the probability of being detected by thermal sensation.

So on the B-01, Li Fanyu used an unprecedented design that will definitely be followed by others - this product was designed with four spirals hovering on the outer layer of the cylinder directly in the interlayer of each cylinder block of the engine. shaped pipe. It uses the engine crankshaft as a transmission and integrates a circulation pump that can control the flow rate with the engine speed.

These two designs constitute what he calls an "internal circulation cooling system"!

If such a design were made of ordinary materials, it would definitely be a suicide attempt. Because digging four grooves in the cylinder body, which requires the highest strength, will definitely greatly reduce the strength of the cylinder body. But this situation obviously does not exist for X Alloy!

But these are just the designs of the accessories.

What really makes B-01 shine with infinite brilliance is the transformation of the main body of the engine!

In the design of A-02, the cylinder block is made of high-strength cast iron sleeve, and the piston is made of high-strength steel. This design mainly takes into account the friction coefficient and durability.

But on B-01, these two parts were replaced with X aluminum alloy.

Wang Yu made a serious protest against this design because the friction coefficient between aluminum and aluminum is very high. According to common sense, such a design will definitely greatly reduce the piston work efficiency and increase the pressure and wear of the crankshaft.

But Li Fanyu insisted on following his own design.

The reason for insisting is that he is quite aware of the characteristics of X aluminum alloy!

Aluminum alloys of Nos. 1-5 have different hardnesses and have greatly different properties. In his expectation, the main body and cylinder of the B-02 were made of No. 4

The strength of the weakened version of No. 4 X aluminum alloy is 9.8, and the strength of the weakened version of No. 5 aluminum alloy is 10.8. There seems to be only one coefficient difference, but Li Fanyu knows that No. 5 X aluminum alloy has essentially changed from No. 4!

He had exchanged No. 5 aluminum alloy in the super material laboratory before, and found that it was hard to tell that it was a pure metal.

Its color has turned into dark green, and its material is more like a mineral like diamond. However, if you look carefully, you can still see that the texture of No. 5 super aluminum alloy is still metallic. In this form, its surface smoothness can even be equal to that of diamond.

With such a property difference and such surface smoothness, how can there be a problem of aluminum-aluminum friction coefficient! ?