in the conference room.

Sun Xiaoping personally introduced the design of the flame cylinder, as well as the improvement and perfection, only to see Sun Xiaoping combined with the slides, and said loudly: "Ladies and gentlemen, this is the second design review of our turbofan engine high heat load flame cylinder......

The design concept of Tianfeng Technology Co., Ltd. is a high heat load combustion chamber, and the advanced design is designed with thermal barrier coating and ceramic composite material structure, and the cooling design is combined with multi-oblique hole divergent cooling and laminate cooling structure.

Such a design is very advanced in terms of structure, especially in terms of cooling.

The multi-oblique hole divergent cooling method has been extensively studied abroad, and it is a relatively mature cooling method, which is widely used in all or part of the flame cylinder of the combustion chamber of advanced engines.

Laminate cooling is made by brazing multiple layers of heat-resistant alloy sheets with holes and slots (or bosses). The cooling process of the porous laminate is that air flows from the two channels of the flame cylinder through the regularly distributed small holes, and then flows between the small grooves or small bosses of the lower layer of the plate, and then enters the lower channel through the small holes on the laminate, and flows out to the regularly arranged small holes of the lowest layer to form an air film. It can be seen that the porous laminate greatly increases the heat exchange area and the convection heat transfer of the internal channels.

The cooling method of the flame cylinder is a combination of the above two, and the cooling effect will be very good, and the service life of the flame cylinder will definitely be increased several times.

Because of the advanced design and structure, the use of advanced thermal barrier coating and ceramic composite materials, the outlet temperature of the flame barrel reaches a high temperature of 2100K. As you know, the outlet temperature of the flame barrel is basically the pre-turbine temperature, and the pre-turbine temperature is one of the important criteria for measuring an excellent engine.

Internationally. The fourth-generation turbofan engine, its pre-turbo temperature is basically close to 2000K, or more than 2000K, Tianfeng Technology's turbofan engine, the pre-turbo temperature reaches 2100K, which is definitely the best among the fourth-generation turbofan engines.

Sun Xiaoping's introduction is more detailed. It not only introduces the design of the flame cylinder with high heat load from the previous time, as well as the new design and new materials adopted, but also introduces the improvement of the flame cylinder after the previous design review.

The flame cylinder has been improved and perfected again in design, and in Li Tianfeng's view, it has basically met the design requirements, and there should be no big problem in terms of design. As for whether there is a problem in actual use, it is necessary to carry out part trial production, verification, or installation for verification and commissioning.

The second review of the flame cylinder was carried out again, and the first design review of the entire combustion chamber was also carried out, and the problems of the combustion chamber were slightly more, and some problems during the review were recorded one by one. It will be improved and perfected again, and then reviewed again.

The design of an aero engine. It always has to go through many design reviews, process reviews, and even material reviews, and it has to go through repeated improvements and perfections, but fortunately, Li Tianfeng, the great god, is here to take the helm from the entire design. Even some key and important parts, or components, after one or two such reviews, the design can be basically finalized.

If it is replaced by other domestic aviation industry enterprises, where can such a process be achieved. Without repeated review, the design is not repeatedly modified, far from being finalized, and sometimes, a new aero engine, just the design will take several years.

After reviewing the entire combustion chamber, Li Tianfeng said loudly: "Everyone, I have good news for you, the ceramic-based materials used in our engine flame cylinder have been declared for the National Science and Technology Progress Award, and they are currently under review. ”

For the National Science and Technology Progress Award, everyone is more familiar, especially Sun Xiaoping, that year, under the guidance of Li Tianfeng, Sun Xiaoping improved the fan blades of the turbofan B engine, the overall performance of the turbofan B fan has improved a lot, Sun Xiaoping also won a great honor, won the second prize of the National Science and Technology Progress Award.

Sun Xiaoping stood up and said happily: "Boss, this is really exciting good news, if nothing else, our ceramic-based material will definitely win the award." ”

Li Tianfeng also nodded confidently, such advanced materials completely fill the domestic gap, and have important significance in the development of aero engines, the award is certain, the key is what level of award.

Sun Xiaoping said happily: "Mr. Li, the National Science and Technology Progress Award we declared, plus this one, is already the seventh item." ”

Li Tianfeng said: "This is the seventh, such as our turboshaft D engine won the national science and technology progress award, won the national award, everyone make persistent efforts, now it is the seventh, behind, we have the eighth, the ninth." ”

Hearing this, many people look at each other, such an award is not only a huge honor, but also an affirmation of the scientific research achievements of Tianfeng Technology Company.

The National Science and Technology Progress Award is one of the five major awards of the National Science and Technology Award established by the State Council (the highest national science and technology award, the national natural science award, the national technological invention award, the national science and technology progress award, and the international science and technology cooperation award).

The National Science and Technology Progress Award is awarded to Chinese citizens and organizations who have made creative contributions in the process of technological research, technology development, technological innovation, promotion and application of advanced scientific and technological achievements, promotion of high-tech industrialization, and completion of important scientific and technological projects and plans.

Turboshaft D engine won the special prize, the third generation of single crystal hollow blades won the first prize, in addition, there are two second prizes, turboshaft E engine is applying, plus the application for wide-chord fan blades and ceramic-based materials, which belongs to the seventh item of Tianfeng Technology Company's application to the state.

Joining Tianfeng Technology Company, the value of one's life can be fully realized, and behind these huge honors, there is also one's own efforts.

Li Tianfeng glanced at the entire conference room, everyone's expressions were in full view, he smiled with satisfaction, and was about to speak and encourage everyone a few words, Li Tianfeng's mobile phone vibrate, because it was the review meeting, Li Tianfeng's mobile phone vibrate.

took out his mobile phone and looked at Zhang Haiping's call, Li Tianfeng thought in his heart, is there any good news, so Li Tianfeng motioned to Sun Xiaoping to preside over the meeting, and he was out of the conference room.

Li Tianfeng said: "Director Zhang, there must be some good news, isn't it?" ”

Zhang Haiping laughed and said: "Mr. Li, it's really good news, isn't your turboshaft E engine about to obtain an airworthiness certificate and will soon enter small batch production?" ”

Li Tianfeng said: "Yes, the airworthiness certificate of the first turboshaft E engine will be obtained soon, Director Zhang, is it good news about the turboshaft E engine." ”

Zhang Haiping said: "Mr. Li, you have to thank me, I have a line for you, Mr. Miguel of the Brazilian Amazon Aviation Industry Company wants to come to your company to have a look and inspect your turboshaft E engine." ”

Hearing this, Li Tianfeng was overjoyed, "Director Zhang, this is really a shocking good news, thank you so much." ”

Why is Li Tianfeng so happy?

Because Li Tianfeng knows that the Brazilian Amazon Aviation Industry Company (the plot needs it, it is apocryphal) is a very powerful company, and it is also a professional helicopter manufacturing company, occupying about 30% of the world's general helicopter market, which is very remarkable.

Although the level of Brazil's aviation industry cannot be compared with the advanced countries of Europe and the United States, there are two well-known companies in Brazil, the most famous is Embraer, and the other is Brazil's Amazon Aviation Industry.

The former is a Brazilian aviation industry group, founded in 1969, whose business scope mainly includes the design and manufacture of commercial, business and military aircraft, as well as aviation services. It is now the world's largest manufacturer of commercial jets under 120 seats, accounting for about 45% of the world's regional aircraft market. The company is now among the world's top four civil aircraft manufacturers and the world's largest producer of regional jets.

Brazil's Amazon aviation industry is a small but specialized company that develops all types of helicopters, including utility helicopters, transport helicopters, and even a helicopter gunship for the Brazilian military.

Tianfeng Technology's turboshaft E engine is mainly aimed at the international market, if it can form a cooperative relationship with Brazil's Amazon Aviation Industry, Tianfeng Technology's turboshaft E engine may go abroad and be installed on the helicopter produced by Amazonas Aviation Industry.

If it can really form a cooperation with Amazon, then the turboshaft E engine required by the other party will definitely not be a few, but dozens of units of this magnitude, and the annual demand will be at least hundreds.

Li Tianfeng said: "Director Zhang, you are really my great fortune star." ”

Zhang Haiping smiled happily and said, "Mr. Li, if the business is negotiated, don't forget to invite me to drink." ”

Li Tianfeng said: "Director Zhang, you must be sure, this time you come to Songzhou, let's have a good drink, I have a bottle of good wine here." ”

Zhang Haiping said: "Mr. Li, I can't come this time, I have been busy with official business recently, and I can't get away for the time being, wait a minute, I will fax the information of Miguel and his party to you, and they will be accompanied by comrades from the Ministry of Commerce and the Bureau of Science, Technology and Industry for National Defense." ”

Li Tianfeng said: "That's okay, Director Zhang, I'll keep this bottle of good wine for you, let's drink it next time." ”

Introducing the call with Zhang Haiping, Li Tianfeng waved his fist excitedly, it was so cool!

………….

Today's two watches, the second one is sent! (To be continued......)