Reborn Technology Scholar

Chapter 175 Aviation Engine

A strong country must have a strong army, and a strong army can lead to national security!

On the news broadcast, the host started the report with this and gave a one-minute report on the scene that took place in the military training at Shuimu University today.

Netizens did not expect that Qin Yuanqing would be on the news network again, and everyone would be busy on the Internet. If you are a celebrity, it is extremely rare to be on the news network, but for Qin Yuanqing, you have to be on the news network several times a year.

It has been two months since the last news.

On the Internet, Qin Yuanqing has a very resounding reputation as the best singer among scientists. Anyone who has heard Qin Yuanqing sing can say nothing bad about him.

The one who sings best among scientists, and the one who does the best scientific research among singers.

It's Qin Yuanqing.

Even some people who like music cried loudly and said that Qin Yuanqing was a great singer who was delayed by scientific research.

Of course, Qin Yuanqing has no feelings about being on the news network anymore. He will be happy and proud at the beginning, but it won't matter as the number of times increases.

There's nothing exciting about it either.

When Qin Yuanqing returned to the office, he began to think about it. Whether it is an automobile research institute or an aerospace engine institute, it needs to be discussed at the school board to formulate a resolution, and even be filed with the ministry before it can be started. And these will take at least a week or even two weeks.

can be completed.

Then Qin Yuanqing closed his eyes and immersed himself in his mind. The whole set of F119 turbofan engine technology. The F119 turbofan engine is a dual-rotor small bypass ratio afterburning turbofan engine. It uses a two-dimensional vector sprinkler that can be deflected up and down. The deflection angle

An engine with a thrust of 20 degrees and with thrust and vector controlled by a digital electronic system. Its thrust is 15 tons, which is actually smaller than the F135 engine. However, Qin Yuanqing finally chose this engine. The reason is very simple. The F135 engine is based on the F119 engine.

Based on the research and development of the F119 engine, it was a matter of course to cross the river and develop the F135 engine.

The more he learned about the F119 engine, the more Qin Yuanqing was frightened by the technology of the United States. It was hard to imagine that such an advanced engine was conducted on the bench for the first time in 1986 and successfully developed in the 1990s.

Therefore, it is not unreasonable for people to say that the Cold War was a period of human technological explosion.

In order to surpass each other, the two superpowers did not hesitate to spend money on scientific research, and the result was an explosion of various high technologies. The Internet was actually born in that era. Even though that era has ended 20 years ago, society still benefits today.

In that era.

"The United States is really perverted. With such an engine, the F22 is paired with two F119 engines, and its combat effectiveness is incredible!" Qin Yuanqing was shocked.

The f119 engine has a maximum thrust of 15.6 tons, an intermediate thrust of 10.5 tons, a total pressure ratio of 35, a bypass ratio of 0.3, a temperature in front of the turbine of 1577°C~1677°C, a maximum diameter of 1.13 meters, a length of 4.826 meters, and a weight of 1360kg. It can be said that this is an extremely powerful engine.

Advanced mature engine.

The entire F119 engine consists of a 3-stage fan, a 6-stage high-pressure compressor, an annular combustion chamber with a pneumatic nozzle and a floating wall flame tube, a single-stage high-pressure turbine and a single-stage low-pressure turbine that turns in the opposite direction to the high-pressure turbine, an afterburner and a two-dimensional

It is composed of vector nozzles, etc. The entire engine is divided into 6 units: fan, core machine, low-pressure turbine, afterburner, tail nozzle and accessory transmission casing. In addition, there are accessories, fadec and engine monitoring system.

According to Qin Yuanqing's understanding, Pratt & Whitney invested a huge amount of US$2.5 billion in research and development expenses before the research and development was successful. You must know that this is not US$2.5 billion today, but US$2.5 billion in the 1980s and 1990s. At that time, US dollars were

It is very valuable. Pratt & Whitney is an engine giant with advanced engine technology and has invested US$2.5 billion on this foundation. Now, it is estimated that it would be difficult for a country to start from scratch without investing hundreds of billions of US dollars.

Successful.

It can be imagined how difficult it is to develop an advanced aeroengine. Otherwise, China would not be without an engine that can reach the world's leading level. The 'Kunlun engine' seems to have been assembled

On a fighter plane, it is actually far inferior to the F16's aero engine.

Aviation engines are impossible without investing a huge amount of manpower, material and financial resources, unless someone has a system like Qin Yuanqing.

Sometimes having a system is so awesome that it can help the country save hundreds of billions of dollars in research and development costs.

And even better is that there is patent protection in the civilian field, but there is no such thing as patent protection in the military field. Even if he actually copied the F119 engine, the United States could only break his teeth and swallow it.

Fortunately, he exchanged the entire set of F119 aero-engine technology. Otherwise, he would really have to start from scratch, and he doesn't know how much time it would take. For example, the high-temperature resistant materials and the material formula cannot be wrong at all. Any slight deviation will lead to

The high temperature resistance of materials varies greatly.

A very important reason for the poor performance of Huaxia aviation engines is that the engine's high-temperature resistant materials are not good enough. For example, the vortex front temperature of the Kunlun engine is about 1300°C, which is about 500°C lower than the F119 aeroengine. In the same situation, the higher the temperature, the higher the temperature.

The thrust is stronger.

Moreover, the basic materials of aviation engines are only one aspect. Others also involve structure, airflow, etc. It is really a step-by-step research and development, which really requires a lot of manpower, material and financial resources. It is no wonder that when the higher-level departments heard that Qin Yuanqing wanted to engage in aviation

As for the engine, I declined it directly, even if Qin Yuanqing was an academician. It is true that aviation engines are not something that can be easily played with.

"Haha, it seems that this time there will be another big development in the high-precision field." Qin Yuanqing thought to himself that this high-temperature resistant material can be used not only on military aircraft, but also on other aircraft. It is also applicable

in other fields.

Moreover, the requirements for processing F119 aero engines are very high, and domestic processing equipment may not be able to meet them.

Qin Yuanqing took a look and saw that it was already dark outside, and the clock on the wall also pointed to 12 o'clock. Only then did he realize that this person who was immersed in F119 aircraft engine technology had unknowingly already reached 12 o'clock.

I sorted the materials on the table, turned off the computer, turned off the lights in the office, and locked the door behind my back.

Looking at the two laboratories, the lights have been turned off in both laboratories, but the office lights of the graduate and doctoral students are still on.

Qin Yuanqing went upstairs. His group of graduate students and doctoral students mainly followed him in research and development. As for classes, Qin Yuanqing only took two classes a week. If he had any questions, he would either ask other people for advice or wait until Qin Yuanqing was in class.

.

Through the window, he saw several people playing League of Legends. Qin Yuanqing smiled. League of Legends is very popular now and is very popular among young people. Tencent is making a lot of money from League of Legends and is making money every day.

In school, students often compete in dormitories, winning two out of three games, and the losing dormitory treats them to dinner.

Some boys even deceive little girls by playing League of Legends.

Qin Yuanqing did not disturb them. As a former student, he understood this very well. Anyway, it is normal to play games and relax at this time.

Qin Yuanqing told all the graduate students on the first day that if he failed to pass the three-year thesis, he would leave his staff. If he failed the assessment every semester, his subsidy would be reduced. If he failed the assessment three times in a row, he would be left to fend for himself.

.

Looking at the doctoral students again, Qin Yuanqing could not help but secretly nod his head when he saw each of them reading a book. This sentence will never go out of style.

Compared with graduate students, doctoral students have heavier scientific research tasks and need to consult a lot of information. At this stage, it is not just about listening to lectures, but also about studying on your own, acquiring knowledge from books, and then slowly forming your own opinions.

own knowledge.

Even when Qin Yuanqing was giving lectures to them, he often mentioned that it is better to have no books than to have no books at all, and that one must be good at thinking. Even he taught only what was reasonable for the time being, and might not be appropriate in a few years.

For mechanical doctoral students, the most important thing is to participate in research and development. As long as you participate in research and development with your heart, you will not be short of a high-quality paper. Qin Yuanqing's laboratory is most indispensable for papers. His two laboratories have worked in the past year

The papers produced are quite objective, and several of them have been published in the highest-level professional journals.

As for doctoral students in mathematics, Qin Yuanqing assigned research subjects early on, which were all mathematical problems in their respective fields. As long as they solved and proved the mathematical problems he assigned, they could graduate with a doctoral degree.

In the past period, his doctoral students have successively obtained certificates to get married. Even graduate students have gotten married several times. However, marriages are relatively simple, just get a certificate, treat everyone to a meal, and introduce your significant other to

Everyone knows each other.

Qin Yuanqing stayed for a while and then went home.

When he got home, he saw the cute Ferrari parked in the parking space. Qin Yuanqing was stunned for a moment. When did Jingtian come back?

Although Jingtian was not filming during this period, he was still performing in business and appearing on TV, just like a trapeze artist. Moreover, Jingtian was recruiting troops and was so busy that Qin Yuanqing didn't even know she was coming back today.

He quickly picked up his phone and saw several missed calls and hundreds of messages. Qin Yuanqing couldn't laugh or cry. He was so immersed in his thoughts that he was blocked from the outside world.

His mind was running rapidly. After a minute, he thought of how to deal with it. With a bright smile on his face, Qin Yuanqing got out of the car and walked towards home.

Such a simple thing can't stop Qin Yuanqing, who has an IQ of over 200. Just kidding, isn't it just that he didn't answer the phone or reply to the message? What's the big deal?

Qin Yuanqing hummed happily, opened the door and walked in.