Chapter 196

Although I feel sorry for my mother, I understand a lot after Li Yulin's persuasion. Black cloud group now has a big tree to attract the wind. If it is holding a big flag and drum to celebrate its mother's birthday, it will inevitably be remembered by some fugitives. Some gains outweigh the losses. It's more affordable to send some money to employees.

Bao Zixuan returned to MIT for his thesis defense. He is outside these days. He is not like a student at all, but he has made great contributions to the school so that he can live and work freely in the school. All professors will be open to the student on this point, and Harry Roland has made it clear that he will be given a postgraduate place in computer science. It can directly enter the computer major in September.

On this point, baozixuan agreed after careful consideration. Many scientific research projects of heiyun have not been completed, and Yulin Institute of technology has not recruited teachers. Now it can take advantage of the opportunities to study and work in the United States. At least bring Chinese scientific and technological talents to Xiangjiang. This is one of his goals, and he will not hesitate to pay any price.

At present, Xiangjiang's science and technology talent reserve can not support the establishment of a science and technology professional college. Then we can only rely on our own efforts to make these people willing to teach and engage in scientific research in Xiangjiang on the grounds of high welfare, treatment and support for their scientific research projects.

The direction of this paper has been clear. Baozixuan developed a successful engine - three rotor turbofan engine in Luoluo company for nearly 10 years in his previous life.

In the past, this engine was developed by RORO in order to break the monopoly of North American Airlines on the engine market. It is an industrial pearl in the aviation industry.

The rotor engine was invented by German figash Wankel. On the basis of summarizing the previous research results, he solved some key technical problems and successfully developed the first rotor engine. The rotary engine uses triangular rotor rotation to control compression and emission, which is very different from the linear motion of the traditional reciprocating piston engine.

Comparison between rotary engine and traditional reciprocating engine: both reciprocating engine and rotary engine rely on the expansion pressure generated by the combustion of air-fuel mixture to obtain rotating power. The mechanism difference between the two engines lies in the way expansion pressure is used. In a reciprocating engine, the expansion pressure generated on the top surface of the piston pushes the piston downward, and the mechanical force is transmitted to the connecting rod to drive the crankshaft to rotate. For a rotor engine, the expansion pressure acts on the side of the rotor. Thus, one of the three faces of the triangular rotor is pushed to the center of the eccentric shaft. This movement is carried out by the force of two components. One is the centripetal force pointing to the center of the output shaft, and the other is the tangent force that rotates the output shaft.

In the following days, engineers developed a double rotor engine based on the rotor engine, but the double rotor engine had some defects in the aircraft. Now major aviation power companies are anticipating the three rotor engine.

The difficulty of adding a rotor to the engine increases in geometric multiples. People only assume that the three rotor engine is greater than the research. After all, the research and development of aeroengine can not be completed with a little money. It may take billions of dollars, take decades, and do not necessarily see the effect. Many enterprises in this regard are unwilling to invest money, resulting in only a few aircraft manufacturing enterprises in the world, and even fewer aircraft engine manufacturing enterprises.

In the field of aeroengine, the disadvantage of double rotor engine is that the diameter of fan and subsequent booster stage is large, and the speed can not be too high. Multi pole low-pressure turbine has to be matched behind the engine to reduce the speed of fan to the optimal speed as much as possible. A solution to this problem is to use a three rotor engine.

At the same time, you can also understand that the fan is equipped with a turbine drive to make the low-pressure, medium pressure and high-pressure rotors work to the optimal speed as much as possible. But this will also lead to other problems. One more shaft requires one more bearing, which will challenge the reliability, volume, layout and weight of the engine.

It can be said that the three rotor engine of the former Luoluo company was forced out by its competitors. Due to the limited size of the military market, the North American partners of civil aviation are now considering their own general and Pratt & Whitney. In the face of this embarrassing situation, Luo Luo decided to hold back his big move with his real ability, that is, the three rotor engine. Of course, one more rotor indicates one more core machine, which is more difficult to grasp in terms of matching difficulty.

After the privatization of Luoluo company in 1987, under the competition of general electric and Pratt & Whitney, although it already has rb211 series engines, it still accounts for only 8% of the whole large civil aircraft engine market. At that time, aircraft manufacturers were developing new wide body twin engines with high thrust engines, such as Boeing 777 and Airbus A330, so as to meet ETOPS standards when they were put into service.

With the technology and experience of rb211, RORO announced its decision to invest in the large civil aviation engine market at the 1988 air show, so as to strengthen its competitiveness and give airlines more choices when selecting engines for aircraft.

Subsequently, RORO company submitted a "development investment" plan to the British government. In 1997, the development of Trent 800 series was £ 200 million; In 2001, the development of Trent 500, 600 and 900 series was £ 250 million, while Trent 1000 series did not require government capital injection.

The former baozixuan participated in the upgrading and transformation of the three rotor engine of Luoluo company, and was very familiar with the engine performance and structure. The British invested about 500 million pounds for the three rotor engine project. Bao Zixuan specially prepared us $1 billion for this purpose, which is to get the technology and patent in the bag for ten years.

Without the three rotor engine, it is only the first step in revenge to see when RORO can rise. There will be many surprises waiting for this aviation power giant in the future.

Baozixuan began to write a paper on the three rotor turbofan engine based on his previous experience and now mature scientific and technological achievements. Once the paper is completed, he will also apply for a patent at the same time. After all, such important scientific research achievements can not be cheap to others. In this way, baozixuan began to seriously prepare his graduation thesis in the MIT library.

Although I understand all the working principles and technical characteristics, the three rotor engine is the most complicated machine in the world. Baozixuan can't write all the industrial production processes alone, let alone make them alone.

It is a system engineering, which needs the cooperation of materials, aerodynamics, machining and other disciplines. Bao Zixuan can only write out the concept and working principle now, which is enough.

The rest requires the cooperation of other engineers, and the use of Soviet material science. Baozixuan has prepared to buy rare earth minerals in Inner Mongolia, Jiangxi, Guangdong and Sichuan as soon as Huaxia agrees to the entry of Hong Kong capital, but it can't be cheaper for Rb, Korean and American enterprises. These are all industrial gold. It seems that you can ask Mr. Huo to introduce them in advance, otherwise there is really no way.

Once there are rare earth resources, combined with Soviet titanium alloy processing technology. Then the basic conditions for aircraft manufacturing have been solved, and the rest is to buy machinery and equipment and recruit talents all over the world.

Yulin Institute of technology will set up a special aviation power specialty at that time, which is to recruit the best aviation talents in the world.

After a month's efforts, baozixuan's paper was finally completed. His current paper needs to be printed in three copies, one for review by MIT, one will be sent to Oxford University in the UK, and one will be reserved for his own defense.