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Chapter 140 I Am Liang Ritian (8)

The two girls packed up their things, took a stack of documents to Liang Yuan's room, and asked someone to go upstairs to have a meeting together.

After the two girls entered the room, they found someone holding their short hair and lying weakly on the writing desk in the room, looking like the illusion that they were hollowed out.

Starting from participating in the Youth Science Competition, Liang Yuan finally finished Li Yuanling's more than 500 pages of technical documents. Although he still doesn't understand the technology at all, Liang Yuan knew what the document was written.

To sum up, this document can be condensed into three words, money! money! money!

Although Liang Yuan is cheating, someone is not a practitioner in the relevant industry. The commonly used technical terms in some industries are completely different from those that are popular for the public.

For example, aviation enthusiasts who often make planes can almost know about the new generation of clean power gear engines (gtf) that Puhui has built.

If I went overseas to look for related technologies according to this title in the 1990s, I'm sorry, that would not exist. Puhui, a new technology that will be focused on in the field of turbofan engines in the future, was not applied to turbofan engines at all in the early 1990s.

However, there is a multi-gear variable speed transmission technology on turboshaft engines, which is the originator of turbofan gear transmission technology. Multi-gear variable speed transmission technology is currently only used in gem-level turboshaft engines. If it is replaced with a turbofan, it is a gadget with a thrust of about 10 thousand N, which is almost equivalent to the power system of an oversized model aircraft, and it will not be able to reach the attention of a first-line power manufacturer at all.

In fact, it was not until 1995 that Pratt & Whitney, which accumulated a deep accumulation of turboshaft engines, that gear transmission technology was introduced into the design and manufacturing of small turbofan engines for the first time.

What Liang Yuan did not expect was that the first advocate who intends to apply gear transmission technology to the field of turbofan engines is Snekema, who currently intends to cooperate with FAW.

Generally speaking, the leading giants in the market are stable and conservative, and few adopt new technologies that have never been verified regardless of risks when it comes to product iterations.

As a rising star, Snekema must take a different approach in the field of technology in order to make a breakthrough in the high barriers set up by the three power giants.

If Liang Yuan had not appeared, the French would have been looking for R&D partners for the ten-ton large ducted turbofan engine, and they would have been searching from the 1990s to 20 years later.

The m123 (Note 1) medium-thrust turbofan engine, which first proposed gear transmission technology, was still on the drawings until the new century and 1910s. At that time, Puhui's new generation of clean-powered gear aero engine (GTF) had already begun to fly around the world.

Strictly speaking, Snekema proposed to use gear transmission technology for the first time in the m123 turbofan, which has its own reasonable technical logic background.

In principle, Puhui's gear transmission and Rolls-Royce's three-rotor are actually the same thing. They both coordinate the rotations of the intake fan and the high-pressure compressor so that both can work in the optimal efficiency range, thereby achieving the optimization of the intake efficiency of the turbofan engine, improving the engine surge margin, and thus achieving the effect of fuel saving and boosting.

In the 1970s, some engineers considered introducing gear transmission into the design and manufacturing of aircraft engines. The problem was that no gear could withstand the tens of tons of stress generated by the full power of the turbofan engine when it rubbed against each other.

Since the gear path is not working, North America's Pratt & General Motors chose the mean double rotor path. France's Snekema chose to subtract, and directly played a single rotor and died of being behind. Britain's Rolls and Rolls chose to add, and directly developed the three rotor, which almost killed himself because of the high difficulty.

After the new century, there was a common industry saying in gear design: the modulus of gears is not selected, but calculated based on the transmitted torque.

In the 1990s, due to insufficient processing and computing power, gear transmission was fixed to a series of modules in most cases, and simplified methods were used to achieve universal improvements when sacrificing performance.

The French have always attached great importance to introducing the latest computer technology into the aviation industry. For example, Dassault Aircraft is the world's first aviation company to adopt computer-designed fighter jets. When time entered the 1990s, with the rapid progress of computer technology, the processing and computing capabilities of the industry gradually increased. Snekema wanted to borrow high-performance computers to overcome the difficulties of non-mode gear design and processing, which is in line with the French aviation industry's consistent ideas.

When Liang Yuan understood that the new Snekemado gear transmission technology that Li Yuanling recommended in the document was the clean power gear engine (GTF) that Puhui focused on investing in the future. In addition to admiring his mother and the French, he was very troubled by Tiankengyi's financing amount.

Li Yuanling wrote very clearly in the document that if the M123 new China introduced gear transmission technology, the R&D budget of 1.2 billion US dollars would be worth burning incense and worshipping Buddha.

In other words, the $1.2 billion R&D expense is just a foundation. As for how much it costs, it depends on whether God will appreciate it.

In order to avoid the arrogant attitude of Yuanjia's executives from becoming more and more arrogant due to Yuanjia's rapid progress in recent years, Li Yuanling did not hesitate to show off his future difficulties and the strength of his opponents one by one.

Snekema is still self-aware. Even though it uses radical gear transmission technology, the thrust of the m123 mid-push is not high, only 72kn, which is similar to the br700 series developed by Rolls & Rolls BMW.

Rolls and Rolls used to replace the next-generation Chinese-push br700 series of RB183 Tay Thai style. The starting thrust is 65kn and the development thrust is about 100kn.

Although the starting thrust of the m123 using gear transmission is almost 72kn as that of the br700, the development thrust is a bit scary. After iteration, it is as high as 125kn. Li Yuanling also added here specifically that if the m123 supports BAIC's current unique sweeping blade technology, the thrust of the iterative product can ultimately exceed 150kn.

When the early days of the cm passenger plane selection and Snekema did not show enough sincerity, Liang Yuan always thought that Snekema had not broken through the technical reserves of thrust above 100kn. Liang Yuan really never expected that the Frenchman with great imagination could create a gear transmission that defies the heavenly thing.

However, even though Snekema and FAW have come up with the technology that is under the box and adopt a radical technical route, they are still very childish in front of old power giants.

The CFM series engine led by Ge, assisted by Snekema, has a R&D fund of US$500 million in three years from the project establishment to the first flight.

Rolls-Royce's leading br700 series engines assisted by BMW have a R&D fund of US$550 million in three years from the project establishment to the first flight.

Rolls-Royce, Puhui-Health, Mtu, Japan Aerospace Power Assistance, an international joint project v2500 specially designed to trap Kaizi, has a R&D fund of US$1.4 billion in four years from the establishment of the project to the first flight.

Leading by Snekema, the M123 assisted by FAW assisted, is launched this year and is expected to make its first flight in five years, with at least US$1.2 billion in R&D funds.

Snekema and FAW Power made a desperate bet, and only raised the thrust to 150kn level, which was considered to be a cfm series with thrust starting from 110kn. As for the Ruida 700 series, ge90 series, pw4000 series and so on, it is still something in the cloud for the time being, and it is not something you can expect by tiptoeing.

At the end of the document, Li Yuanling also teased his son and said that if Liang Yuan threw the dice and left the oil field, it might not be impossible to get R&D with a billion dollars.

Others don’t know how the Nansha oil and gas field came from, but Liang Yuan himself still has a little bit of a doubt. Just think about it and think about it. You must not really prepare according to this budget.

While Liang Yuan was lying on the table and lamenting, the two girls pushed the door and walked in.

"What's wrong with Xiaoyuan? Are you feeling uncomfortable?"

Seeing someone's face full of hopelessness, Ning Wanjia threw away the documents in her hand and touched Liang Yuan's forehead with her little hands anxiously.

"Jia Jia, I don't feel uncomfortable, but it's true that I'm sick."

"If you believe you, you are a fool. Tell me what disease you have and see if I can cure it."

It was normal to touch Liang Yuan’s forehead. I found that someone still had the energy to talk nonsense. The girl knew that she had been fooled.

"The person is poor, his face is ugly, and his rural household registration feels that there is no hope for the future."

Ning Wanjia was amused when she heard someone talking nonsense, but when the girl's eyes flashed over the desk and spread out the R&D expenses of at least $1.2 billion at the end of the document, she suddenly felt heartbroken.

After pursing his pink lips, Ning Wanjia stepped forward and leaned against Liang Yuan, stretched out her hand to slowly hug Liang Yuan's head, and slowly pulled it on her chest.

"Xiaoyuan is exhausted recently."

After a few breaths, Ning Wanjia asked in a low voice with great distress.

"I'd be happy if Jiajia is exhausted like this."

I was surprised at first, and then I was so happy that someone who lost his IQ felt comfortable and then said in a depressing manner.

~~~~~~~~!!!

"Hey hey hey~~, don't pinch your ears, I'm going to have a meeting. I'm so proud of being red."

In the end, someone walked into the conference room on the top floor of the Peace Hotel with red ears.

"Everyone keep going, don't worry about me, I'll listen for a while."

Liang Yuan found a seat and sat down. The two girls acted as assistants and secretary according to the usual practice, and sat behind Liang Yuan.

Looking at the big boss's red ears and the boss's wife's blushing cheeks, the atmosphere in the conference room, which was a little dizzy because of the meeting, suddenly became louder, and even the air was filled with a smile.

Zhou Yuanhang, who was in charge of the meeting, tapped the whiteboard with a marker, and said in a voice that suppressed the smile: "Let's go ahead."

"Everyone has read the technical information of Mr. Li in FAW. It is also a consensus of the conference on further deepening cooperation with Snekema. Now there are two main concerns~~~."

"First, whether Snekema can treat us as an equal partner, we cannot refer to the lessons of the V2500 project of the International Engine Company."

As the top elite in the aviation field, Zhou Yuanhang can naturally judge the true status of Japan and the Federal Republic of Germany within the international engine company.

Although the modern enterprise management system is very strict with commercial laws and regulations, no matter how strict the system is, it cannot stop humans from taking advantage of loopholes.

Although they spent a lot of money, Japan and the Federal Republic of Germany learned almost nothing meaningful in the v2500 mid-push project. Not to mention the large mail-push, even the design and manufacturing of small aircraft engines, these two countries are still not good at playing well after 20 years.

When FAW cooperates with Snekema, it is necessary to be vigilant. If the mistakes of Japan and the Federal Republic of Germany are repeated, the 600 million or even more dollars will be worth spending.

"Second, even if we work together with Snekema, the chances of overcoming gear transmission technology within five years are not very optimistic. Gear technology and bearing technology are closely linked. It is questionable whether French snr bearings can shoulder this R&D task."

Speaking of which, the modern aviation industry is simply tied up. The bearing manufacturer behind the Rolls-Royce BMW br700 project is Germany's Schaffel (fag) bearing, one of the world's four major bearings.

The bearing manufacturer behind the V2500 project of International Engine Company is Japan Seiko (nsk) bearing, one of the four largest bearings in the world.

The bearing manufacturer behind the cfm56 project is still the US Timken bearing, one of the four largest bearings in the world.

Who is the bearing manufacturer behind the m123 project? French SNR bearings - an international second-line bearing manufacturer. As for the Republic's Hakka, shingle shaft and Lock shaft, it's better not to mention it.

The important role of bearings in an aircraft engine cannot be overemphasized. An accidental break of the blade engine may not necessarily fail. If the shaft breaks the engine, it will definitely be finished.

In 1990, gear transmission was definitely the most cutting-edge project in the aviation and metal fields. It is really unsure whether the French SNR can carry the banner.

Of course, it may be safe if it is outsourced to the other three bearing manufacturers, but for France or the Republic, it may lose the core significance of taking huge risks to develop a new China-promotion.
Chapter completed!
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