Tianfeng Technology Company.

Li Tianfeng was in his office and watching the military propaganda film of "Into the Barracks" on the computer, seeing the vigorous posture of Wu Zhishi on the propaganda film, and seeing the formation flight of the new Yun-8, especially the close-up of the engine part of the Yun-8, Li Tianfeng was also enthusiastic.

All this, in the final analysis, is mainly due to Tianfeng Technology Company, if there is no powerful turboshaft D engine, if there is no own turbofan 16 engine, then there is no new Wuzhi 10 and new Yun-8 aircraft.

Not only these two aircraft, but also the military's new transport helicopters, and now the H-6 long-range bomber.

Although the H-6, an old-fashioned long-range bomber, did not appear in public in the promotional film "Into the Barracks", it has completed a series of test flights, performed very well, and rejuvenated for the second time.

Li Tianfeng is naturally familiar with the current new H-6, this bomber has begun to enter small batch production, and a H-6 is equipped with two turbofan 16 engines, both in terms of range and bomb load.

From beginning to end, Li Tianfeng watched the series of promotional videos "Into the Barracks", and his heart couldn't calm down for a long time, Li Tianfeng thought in his heart, if he has a lifetime, he can upgrade the military's aviation equipment and reach the world's top level, and he has no regrets in this life.

After thinking about this for a long time, and when his heart gradually calmed down, Li Tianfeng got up and prepared to go to Sun Xiaoping to have a look again.

Walking into Sun Xiaoping's office, Sun Xiaoping was looking at the 3D color map of the turbofan 20 engine drawn by Li Tianfeng with great interest.

Looking up and seeing Li Tianfeng, Sun Xiaoping hurriedly got up and said happily: "Boss, our turbofan 20 engine is so beautiful, people like it deeply as long as they look at it." ”

Li Tianfeng smiled, "Mr. Sun." The design of aero engine should not only fully consider the performance of the engine, as well as the manufacturing process of each part, but also consider the beauty of the engine. ”

Li Tianfeng adheres to this in the design of every engine, whether it is the turboshaft D or turboshaft E engine. Or the turbofan 16, turbofan 17 and turbofan 18 engines, all adhering to this.

Each engine designed and developed by Tianfeng Technology Company not only has excellent performance and strong manufacturing process, but also is very beautiful, which is very beautiful and has the beauty of modern aero engines.

Sun Xiaoping nodded: "Boss, this point is worth learning from us, in the future aero engine design." We will definitely keep that in mind. ”

Li Tianfeng nodded, the current Li Tianfeng is not only a technical leader, but also almost equivalent to the mentor of the entire aero engine R&D team.

Li Tianfeng said: "Mr. Sun." I have completed a panoramic 3D color map of the turbofan 20 engine in a few days. Half, quarter of the cut will be done. ”

Sun Xiaoping was overjoyed, "Boss, with these graphics, everyone's morale will be greatly encouraged, and it can also play a good role in guiding the design." ”

Li Tianfeng nodded. However, it is important to keep in mind that the graphics are for reference only. ”

"Hmm." Sun Xiaoping nodded, and then said: "Boss, you came just in time, the turbine rotor of our turbofan 20 engine has been designed." ”

"Oh." Li Tianfeng said: "Mr. Sun." It's progressing pretty fast, but it's only been a long time since it entered the full-scale design stage. ”

Sun Xiaoping said: "Boss, the main thing is that the design of the turbo part has changed very little, which is basically the same as the turbo of the turbofan 16 engine. ”

Because the core engine of the turbofan 16 engine is adopted, the turbo part, combustion chamber part, compressor part, and fan part of the turbofan 20 engine are highly similar to the turbofan 16 engine, but there are some changes and improvements based on the small channel ratio engine.

Among them, the turbine part has the least change and the fastest progress, and the fan part has the largest change, from the previous large channel to the current small channel, and the design of the fan part will also take the longest time and the most work.

Sun Xiaoping turned on his computer, and what was printed in Li Tianfeng's eyes was a 3D design of the turbine rotor, which looked very similar to the turbo rotor of the turbofan 16 engine, but the size was slightly smaller.

The blades are still the third-generation single crystal hollow super-cooled turbine blades, the turbine disc is still a double-plate powder metallurgy turbine disk, and the structure and shape of the turbine shaft are basically similar to the turboshaft of the turbofan 16 engine.

The turbo of the turbofan 16 engine has a low-pressure first stage and a high-pressure three-stage operation, and the turbo of the turbofan 20 engine has a low-pressure first stage, but the high pressure is changed from a three-stage to a two-stage stage.

In addition, the maximum thrust of the turbofan 16 engine is 50,000 pounds, while the maximum thrust of the turbofan 20 engine is 330 million pounds, the thrust is not the same, and the load of the turbo part is not the same.

Sun Xiaoping took the initiative to get out of the way, and Li Tianfeng sat in Sun Xiaoping's office chair, in front of the computer, looking at the design of the turbine rotor seriously.

Because it is a special design software, the size, tolerance, and technical conditions of the turbine rotor are clear, Li Tianfeng looked very carefully, not only looking at the overall turbine rotor, but also looking at the various parts that make up the turbine rotor, such as turbine blades, turbine disks, turbine shafts, turbine bolts and other main and key parts.

After taking a serious look, Li Tianfeng said: "Mr. Sun, look here, you have to continue to improve, the position of the cooling hole of the turbine blade should be moved slightly, and the taper of the turbine spiral is also recommended to be changed from 1 to 48 to 1 to 50......"

Li Tianfeng's technical level is there, and he looked very carefully just now, and he still saw a lot of problems, although they are not major problems, but some problems are not small problems.

Seeing this, Sun Xiaoping hurriedly recorded them one by one, and after a while, he would improve and perfect them one by one according to the problems raised by Li Tianfeng.

Li Tianfeng said: "Mr. Sun, the turbine rotor will be improved and perfected again, and then the design review will be organized, and I will be notified to participate in the review." ”

The turbine part is a very critical and important part of the engine. There must be no mistake in coming, Li Tianfeng attaches great importance to it and will definitely participate in person.

Sun Xiaoping said: "Mr. Li, give us a week to improve and perfect the design of the turbine rotor, and after our internal review is completed, we will notify you to participate in the second review." ”

Li Tianfeng nodded. Then he asked Sun Xiaoping a lot about the design and development of the turbofan 20 engine, and also explained a lot of design things.

When he left the aero engine R&D center, Li Tianfeng thought to himself, it is still good to have a ready-made core engine, otherwise, how can the design of the turbofan 20 engine progress so fast, and it is impossible to design the turbine rotor so quickly.

………

Canada, Bombardier Inc.

At the special airport for test flights, a regional airliner landed slowly. Stopped, and then, a series of ground staff, engineering and technical personnel, as well as Peng Jiangtao and others from Tianfeng Technology's Canadian office, everyone walked quickly towards the distant plane.

The regional airliner, which is equipped with two turbofan-17 engines, has completed a series of test flight verifications, and this is just the last test flight of the project. Now that the plane is at a standstill, it means that a series of test flights have been completed.

Peng Jiangtao is most concerned about the situation of the test flight. If this test flight is also perfect, it means that a series of test flights have been successfully completed, and it also means that the two turbofan 17 engines have performed very well.

Peng Jiangtao, with several of his technicians, first carefully checked the appearance of the two turbofan 17 engines, and everything was normal.

The fan intakes are clean and every fan blade is perfectly normal. Open the bonnet and the whole engine is very normal.

Even, Peng Jiangtao pulled out the oil filter of the engine and saw that the filter was clean, the same as the last test flight. This means that the engine is not worn, because if there is wear, the metal shavings from wear will be washed over with the oil and end up in the oil filter.

After some inspection, Peng Jiangtao nodded and said happily to his two subordinates: "Xiao Liu, Xiao Zhao, our turbofan 17 engine is performing very well, and everything is completely normal." ”

Soon, Bombardier's engineers and technicians also completed a series of inspections, and one of the foreigners, who looked like a leader, gave Peng Jiangtao a thumbs up from afar.

"Peng, your engine is very good, and all the test flight data is completely normal."

Seeing this, Peng Jiangtao smiled happily and thought in his heart, wait a minute, I will tell this good news to China as soon as possible, so that everyone will be happy.

………

in the office.

Smith was looking at a thick report that had been collated and sent over by the technical department, a series of test flight reports of the turbofan 17 engine.

"I didn't think about it, Tianfeng Technology's turbofan 17 engine performed so well, it is a real fourth-generation turbofan engine with low fuel consumption, low noise and low emissions."

"The only drawback is that the safety and reliability of the engine cannot be further verified for the time being, and in this regard, it must be accumulated over a long period of time, reaching millions of flight hours, or even millions of flight hours, before the final conclusion can be drawn."

"However, Tianfeng Technology Company mentioned in the description of the turbofan 17 engine that the turbofan 17 engine is a high-safety and high-reliability engine, I don't know if it's true."

"Perhaps, this is mostly true, as can be seen from a series of verification test flights of the turbofan 17 engine, this engine is likely to be a real high-safety and high-reliability engine."

Looking at this report, Smith thought a lot in his heart, and at the same time, he fully recognized the turbofan 17 engine, and even thought in his heart, maybe he should purchase the turbofan 17 engine from Tianfeng Technology Company and install a variety of regional technologies produced by his own company.

"Knock, knock, knock!"

There was a knock at the door, and Smith retracted his thoughts and said aloud, "Please come in!" ”

…………

Today's three watches, the third one is sent!

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