Chapter 2589: Foreign monk

A father must have a son. His son is naturally an outstanding engineer. How could this engineer be here? Even if Xiong Country’s current conditions are not good, you shouldn’t worry about your own life if you come from this kind of family?
Qin Guan glanced again and found that there were more than a dozen people from the Xiong country here. Although Qin Guan had already started to flick the experts from the Xiong country, it still felt strange to see these people rashly here.
"Come and introduce to you." It seems that he knew Qin Guan's doubts, Kang Elder said to Qin Guan: "This is Fedotov. He was once in the R79 engine R&D team and took on the main task. Later, this The project was terminated and we were hired by us to become an excellent R&D staff member of our Turbofan-15 team. He has not returned to China for a year."
The R-79 engine is the engine of Xiong’s Yak 141 vertical take-off and landing fighter. This fighter project is actually marginalized in Xiong. The people of Xiong have invested very little money and do not see much effect. Later, Han people joined in.
One of the most important projects implemented by Han Guo is the lift fan. In this way, the ablation of the lift engine to the deck is reduced, making this project truly worthwhile.
The matching of the lift fan and the R79 engine has been in progress. However, as we all know, the R79 engine is not advanced in technology. It only has a large thrust. In terms of thrust-to-weight ratio, it is actually less than 6, even three generations of engines are choking.
(There are many publications saying that the technology of turbofan-15 comes from R79, from a power-to-weight ratio of 6 to a power-to-weight ratio of 10. Even if it is really from R79, it is already a comprehensive upgrade, and it is also Han's own technology. The result of the hard work of the staff.)
Even such an engine is actually in the research and development stage, and the research and development has not really been completed. In the process of contacting with the technical personnel of Han, Xiong Guoren began to admire the development of Han, and even more for Han. In-depth understanding.
Therefore, it will be normal later. The turbofan-15 project led by Pan Lao requires a large number of technicians. These engine experts from Xiong Guo still have a few brushes. After they have been added to their own projects, they also put forward them. A lot of insights have made the research and development of Han Guo's engine progress swiftly. At the same time, Han Guo also gave them a stage to show off. Both parties are considered to get what they need. Therefore, they signed a confidentiality agreement and joined the project.
Unexpectedly, some time ago, I also asked the other party to buy 50 R79 units. Now, the project has ended! I know that Xiong Guo is not reliable. Fortunately, the project has not been carried out yet, and there is not much loss.
"Is your father Sergey? He is a well-known engine designer in the country of Xiong. We admire him very much. If we have the opportunity, we would like to invite your father to visit Han." Qin Guan said.
Now, Xiong Guo is about to disappear. After the collapse of Xiong Guo, their engine technology has stopped. The Al-41F engine, which is comparable to the West, has been completely abandoned and only improved the third uncle with the acquired technology. , Become what 117S engine, it is enough for them to show off.
Research on engines requires a lot of capital investment. After the collapse of the Xiong Country, they no longer have the ability to do this. Their engine technicians will also be lost in a large amount, and they can continue to flicker over.
"Yes, but he probably won't come. For my sake, I have severed relations with him." Fedotov said.
As a designer of Xiong Guo, he actually joined the R&D team of Han Guo. When the news of him passed back, his father was of course very annoyed. When he was hopeless to persuade him, he broke off relations with Fei. For Dotov, this is nothing. Here, the most advanced engine has been developed, which excites him.
For an engineer, they always desire technology most. Fedotov, this is a foreign monk who came to Han country and realized his life value. They have developed four generations of engines. What a remarkable achievement! The advanced technology of each one made him sigh.
"President Qin, you see, this turbine blade reflects your technological progress. Its processing technology is the most perfect, and Xiong Guo can't do it!" Fedotov said, picking up the magnifying glass. , Let Qin Guan watch.
Qin Guan really couldn't tell, what kind of doorway was there?
"Look at these small holes, after a long test run, they still work well without any traces of ablation. They are simply perfect! Look, the shape of these small holes looks like cat ears? It uses advanced alien shapes. The hole laser processing system processes the cat’s ear special-shaped hole air film cooling device. With it, the temperature can be reduced by at least 150 degrees!"
Film cooling? As a military fan, Qin Guan could still understand a little bit.
The turbine temperature of an aero engine has a great impact on the performance of the engine. In the first generation of engines, the turbine temperature was only a few hundred degrees. By now, the third generation of aircraft has the turbine temperature above 1,500 degrees Celsius. To have a thrust-to-weight ratio of more than ten, the front turbine temperature must reach 1,700 degrees Celsius.
Under such a temperature, ordinary materials have long been melted. This turbine blade is one of the key technologies of aeroengines. Whoever has powerful materials and withstands high temperatures will have advanced engine performance. Various rare metals , Have been used on it.
On the one hand it is the material, on the other hand it is the structure, such as spraying various high temperature resistant coatings on it, and the use of gas film cooling technology.
The film cooling technology is actually to make the blades hollow, fill the inside of the blade with air, and then spray it out through the film cooling holes distributed on the surface of the blade, so that the surface of the blade can be coated to isolate the high temperature sprayed from the combustion chamber High pressure gas. If you have done university experiments, the principle of the air-cushion rail is like this.
However, the key to this technology is how to perforate. Only by perforating high-density straight round holes on the blade can the cooling performance be achieved. Perforating will inevitably reduce the structural strength and life of the single crystal blade. Therefore, the punching process is very important.
Xiong Guo has its own uniqueness in the engine technology of the third-generation aircraft. However, Xiong Guo's processing technology is not strong. They use their advanced integration capabilities to achieve engine progress.
The technology of Han Guo is beyond Xiong Guo's own.
This technology is three-dimensional shaped holes!