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"So, your fuel cell can now also be mounted on a tank?" asked Liu Jianqing in surprise.

"Our fuel cell energy density has reached 3.2K/L, and now one of the MT880 series of high-power diesel engines produced in Germany has an energy density of 3.1K/L, which is the largest high-power diesel engine in Germany at this stage. ”

Yang Jie continued: "However, as far as I know, the engine of this AAV amphibious combat vehicle in the United States has a power of only 635K on land, and after entering the water, the fuel injection pressure is increased to 1200K at full power, and then the two-stage turbocharging device can be started to get the top speed of 2016K, which puts forward very strict conditions for the engine body and heat dissipation system, and this time cannot last long at all." The temperature of our fuel cells is also only maintained at 85 degrees after entering the full load state, no additional cooling system is required, and the start-up time is very fast, and it only takes three minutes to enter the full load state. ”

"If that's the case, that's great!" Zhang Kelong said excitedly: "The limit power of our existing D12V150ZALL diesel engine can only reach 883K, and now it can't even reach 1176K." ”

"A fuel cell is just a generator, and how to convert the energy of the generator into kinetic energy also requires a motor, what is your company's strength in the motor?" asked Liu Jianqing.

"Liu Lao, we are world-class in electric spindle technology, as long as necessary, we can prepare different power asynchronous motors, and the conversion efficiency of the motor to electric energy is very high, the asynchronous motor produced by the Machine Tool Research Institute can reach 90% of the conversion efficiency, which is higher than the traditional gearbox, and now the best gearbox can only achieve 70% efficiency. ”

Yang Jie said with a smile: "Our electrochemistry laboratory originally took the route of high-pressure hydrogen storage, but now it is stuck on the circulating compressor, but the recently developed hydrogen oil technology has solved the problem of hydrogen storage at once, and now it can achieve the same capacity of hydrogen oil and diesel mileage is 20% higher." ”

"In addition, I am still asking the laboratory to find ways to improve the energy density and conversion efficiency of the fuel cell stack, and at the same time increase the hydrogen content in the hydrogen oil, which still has a lot of room for technical improvement. ”

"I have learned about your hydrogen oil technology, your kilogram of hydrogen oil will be sold for 15 yuan, if it is calculated according to the capacity of the tank tank, it will cost 15,000 yuan to refill hydrogen oil, and now it is more than 7 yuan for a liter of diesel, and it will be about 9,000 yuan to fill up!"

Liu Jianqing looked at Yang Jie and said: "In addition, the price of the MT883Ka-524 diesel engine is about 600,000 US dollars, and the military cannot afford this price." ”

After the collapse of Yugoslavia, because of its good relationship with Serbia, Huaxia now purchases power packs from Serbia, which is used in the old M-84 tanks, and now the military's foreign trade 852 tanks are the Serbian power packs.

However, Serbia because the main import of weapons and equipment-related equipment and components is mainly Russia, from the Yugoslav period from France, the United States to obtain technology, equipment channels have long been broken, and because of the domestic economic difficulties, the original military industrial system is fragmented, there is no way to support military scientific research projects, so there is no progress in the tank power pack, Huaxia is now also aiming at Ukraine and Russia tank power pack.

In my memory, for a long time later, the foreign trade tank power packs in Huaxia were purchased from Ukraine, and it was not until more than ten years later that the heart disease of high-power diesel engines was solved in China.

Now Ukraine's power packs are not cheap, the price has reached 400,000 US dollars, and they are mainly sold to foreign customers, and the domestic military's equipment is mainly based on 635k power packs.

In fact, the domestic high-power diesel engine of the German MTU is coveted, in the previous honeymoon period between the United States and China, the German MTU proposed that if Jinxi Diesel Company can help MTU sell 200 sets of 396 diesel engines, it can fully transfer the technology of 396.

The cylinder structure of the 396 is very similar to that of the MT873, and importantly, the two are products of the same era, using the same design philosophy and working mode. After learning 396,873, he learned half of it, so at that time, Jinxi Diesel Company did not hesitate to sign the contract.

In those years, the country's railway passenger cars were fully air-conditioned, and in order to supply air conditioning to more than a dozen passenger cars, there must be a powerful air conditioner.

Because of its small size, high power, low failure rate, low noise and reasonable price, 396 has become the most ideal choice.

Within a year, Jinxi Diesel Company sold more than 500 units of 396, MTU is also very happy, as promised to provide a full set of 396 technical information, but MTU left a hand, the materials and dimensions of the engine components are given, how to build it but live or die, everything depends on the Chinese people themselves to explore.

Accustomed to the Soviet-style manufacturing of Jinxi Diesel Company, at the beginning of the 396 precision machine did not know how to start, regardless of parts tolerance or assembly conditions, are high to the extent of maddening, in several years, the manufacture of 396 is extremely difficult, with imported parts to assemble the product is reasonable, but as long as the replacement of domestic parts, the performance immediately dropped to the extent that people shed tears, the most important indicator - engine power, how can not be reached.

The 396 is not just used for air-conditioned cars. In the MTU product list, the main use of 396 is marine, and the world's best-selling 212 submarine in Germany is equipped with two 396 diesel engines.

The domestic naval construction is also eager to come up with qualified localized 396 products as soon as possible.

After the bombing of the embassy this year, the top management immediately began to increase investment in military enterprises, and a large amount of funds for technological transformation were injected into the military industry.

In the memory of the previous life, most of the generator sets on the new generation of naval surface ships used the 396 diesel engine of Jinxi Diesel Company.

It is precisely with advanced equipment and funds that Jinxi Diesel Company quickly solved various industrial problems in the manufacture of 396, not only manufactured a 396 air conditioner that is no less than the original German one, but also developed a power system for high-speed missile boats and a new generation of submarines.

When MTU visited Jinxi Diesel Company, he saw qualified marine 396 products, and finally told the truth in shock - they transferred 396 technology to many enterprises, among which the most optimistic is South African enterprises, but I didn't expect Huaxia to break through first.

It is also to understand the design ideas and process methods of 396, under the requirements of Zhu Yusheng and Zhu Lao, the chief designer of the third-generation main battle tank, Jinxi Diesel Company on the basis of 396, following the cylinder diameter of the old 150 engine, redesigned a 150 mm bore tank diesel engine, which is a direct skip MT873, the development of a new generation of engines close to MT883.

Later foreign trade VT4 tanks and 99A main battle equipment used this engine in the power pack, but this was more than a decade later.

In fact, as early as the spring of 1989, NORINCO began the first phase of research and development, and launched an initial prototype codenamed Z-123 in 90, and further launched 4 prototypes in 1992.

The prototype was tested for its adaptability to hot and humid conditions at the southern test site, and later in the cold zone at the northern test site.

At the end of 96, the Type 99 main battle tank was officially finalized, but the power pack provided by Jinxi Diesel was still insufficient in reliability, and this heart disease has also been plaguing many military equipment.

Now Huaxing Technology Group has made a breakthrough in fuel cell technology in a few years, which also makes the military ecstatic.

Yang Jie heard Liu Lao's words at this time, he thought for a while and said: "Liu Lao, in order to develop fuel cell and hydrogen oil technology, our company has spent billions in the past few years, you can't let me sell it to the military at cost price!"

"You give me a good word, how much do you want for a 1200k fuel cell?" Liu Lao looked at Yang Jie and asked.

"The whole power pack costs $300,000. Yang Jie said.

Liu Jianqing exchanged glances with Zhang Kelong, and Zhang Kelong immediately said to Yang Jie: "Next week, the military will purchase fuel cells and motors from your company in the next batch of orders, and if your company's products can pass the military's test, the military will purchase them in large quantities." ”

"Our company will give priority to ensuring orders from the military and will provide high-quality products. Yang Jie said with a smile: "This is not the first time that our company has provided products to the troops. ”

In the past few years, Huaxing Technology Group has provided the military with many small servers mounted on fighter jets, as well as many different types of chips and computer equipment.

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