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Chapter 1428 HX-30-27 core machine

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    It¡¯s no wonder that the Aviation Industry Corporation of China has such an idea. Although the upper management did not allocate an additional penny to China Ascendas, let alone excess financial support, this full, sufficient or even excess return of US dollars converted into RMB was not  It is more effective than the effect of fund allocation.

    What's more, China Ascendas's annual profits are between 20 and 30 billion U.S. dollars. The profits turned over only account for about 60% of China Ascendas's foreign exchange profits. It also retains about 10 billion U.S. dollars in foreign exchange profits. These funds are free from China Ascendas  As long as the capital flow is submitted to the superior foreign exchange management department at the end of the year, it will be controlled immediately.

    In other words, China Tengfei can purchase all kinds of advanced equipment from developed countries in Europe and the United States without restrictions. Compared with the Aviation Industry Group, it is much more miserable. Due to its limited foreign exchange profits, if you want to purchase foreign equipment, you need to apply for a foreign exchange quota separately.  , if you include the time for approval and decision-making, the whole process is so cumbersome that it can make people burst into tears.

    It can be seen that the upper management still attaches great importance to China Takeoff. Based on this, even if the Aviation Industry Corporation of China really wants to completely eliminate China Takeoff, a direct competitor, it can only restrain its efforts due to the maintenance of the upper management and let China Takeoff.  The aircraft engine high-altitude test bed was successfully launched.

    However, despite the fact that the Aviation Industry Group favors China Ascendas among its upper management, it also feels that China Ascendas will inevitably become the life-or-death enemy of the entire Aviation Industry Group as it continues to develop. However, what makes them fortunate is that in the field of high-thrust heavy-duty aero engines,  In the game, the Aviation Industry Group achieved a decisive victory.

    Based on this, the basic pattern of the domestic military combat aircraft field in the next 20 to 30 years can be directly laid. China Takeoff can still only provide supporting services, and the Aviation Industry Corporation of China will still take the lead as it does now.

    The leadership of the Aviation Industry Group made this judgment based on the basic judgment that China Takeoff stepped into the big pit of aero-engine high-altitude test bench and the ultra-long development cycle of high-thrust aero-engine.

    You must know that the aero-engine high-altitude test bed affiliated to the Aviation Industry Group was planned in the late 1950s, began to be constructed in the 1960s, and was completed in the 1990s. The construction period alone took 30 years, and it was only possible through the hard work of the two generations before and after.  The first high-altitude aero-engine test bed in China was completed.

    ?This especially shows the complexity and difficulty of this thing.

    Even if China takes off with abundant funds, it is almost impossible to complete it in a short time. Even if we work overtime, the entire construction cycle will take 8 to 10 years to bear fruit.

    The problem is that by then, the aviation industry group's al-31 heavy-duty aircraft engine copy project has already come to fruition. Even if China takes off and works hard, it will take 5 years to obtain the high-altitude aero-engine test bed, but it will take 20 years to develop a high-thrust aero engine.  Where is the cycle? Even if China takes off with a certain foundation on wd-70, it will still take 5 to 8 years to perfect it.

    ??With such inconsequences, within a generation, China Takeoff will not even think about making any achievements in high-thrust aero engines.

    Because of this, the Aviation Industry Corporation of China was a bit dissatisfied with China Takeoff's launch of a high-altitude aero-engine test bed and the insistence on carrying the "Lancangjiang" model, but they did not take it to heart because the basic laws of aero-engines are  There, unless possessed by aliens, even Americans cannot escape the influence of this powerful law.

    However, at this moment, the "Lancangjiang" high-thrust aeroengine displayed by Tang Lili on the screen, anyone with a discerning eye would know at a glance that it is not a concept design, but a mature product that should complete a long test run, because what is displayed on the screen is not  It is a conceptual design drawing, but a perspective detail drawing created from real pictures.

    You know, it has only been two years since the completion of China Ascendas' aero-engine high-altitude test bed, and China Ascendas has launched the "Lancang River" project?

    How can this be!

    However, the surprise, astonishment, puzzlement, doubt and disbelief in the venue did not affect Tang Lili's steady and calm tone on the stage. Instead, she adjusted the remote control, and the aeroengine on the screen rotated and quickly decomposed.  Finally, a core engine consisting of a combustion chamber, a primary turbine and a secondary turbine was left, and then the laser pointer was pointed on it: "Some people may ask, how can our 'Lancangjiang' project progress so fast, and how mature it will be."  It won't be high. Let me give you a guarantee here. Our wd-72e 'Lancangjiang' high-thrust aeroengine is very mature because the technologies used in it are all mature technologies that our China Tengfei has polished for many years  "

    As she spoke, Tang Lili drew a circle on the core machine and said loudly: "For example, our hx-30-27 core machine is a typical third-generation core machine. Compared with previous generations of single-rotor core machines,  For the third-generation core machine, we adopted a dual-rotor structure and added a second stage at the rear.wheel, thereby increasing the overall power of the core machine.

    At the same time, through the application of advanced heat-resistant materials and other related technologies, we have increased the temperature in front of the turbine of the third-generation core engine, which is currently equipped in the hx-30-27-c of the wd-72e'Lancangjiang' high-thrust aeroengine.  The turbine front temperature of the core engine is 1873.15 Kelvin, or 1600 degrees Celsius, giving our third-generation core engine a cycle power of 27 megawatts"

    Before she finished speaking, Tang Lili pressed the remote control in her hand again, and the core machine on the screen was decomposed again. Then Tang Lili pointed at several parts with a laser pointer and continued to introduce: "The excellent performance of the hx-30-27 core machine is not  What new technologies we use to build it? On the contrary, many of the materials and technologies are mature products that China Tengfei has polished for more than ten years.

    For example, the h-zb-618 high-performance ceramic matrix composite material used in the combustion chamber is based on the zbf-600 experimental ceramic material developed ten years ago. The experimental material at that time could withstand high temperatures of 1,450 degrees Celsius, and maintained  It was tested on our 2.5-generation core machine. Later, as our technology in ceramic matrix preparation and metal support was further improved, the material was officially put into production and given the material naming number h-zb-600 series of China Tengfei, thus getting  widely used.

    The tail nozzles, combustion chambers and even turbine disks of the wd-66 series aero engines used by fbc-7a and J-8e all use h-zb-600 series ceramic matrix composite materials to varying degrees. On this basis, we summarize the past h  - Based on the experience and data used in the zb-600 series, the h-zb-618 high-performance ceramic matrix composite material with better performance was developed as the main material of the combustion chamber of the hx-30-27 core machine, thus making its combustion chamber  It has continuous high temperature resistance of 1800 degrees Celsius, and the ultimate high temperature tolerance can reach 2200 degrees Celsius"

    "Comrade Tang Lili, the continuous high temperature resistance of the combustion chamber of the hx-30-27 core engine is 1800 degrees Celsius. The current temperature in front of the turbine is only 1600 degrees Celsius. Does that mean there is still room for improvement in the hx-30-27 core engine?"

    Before Tang Lili could finish her words, a naval leader couldn't help but ask. Tang Lili smiled and nodded: "Of course, otherwise the next generation combat aircraft will suffer from heart disease again?"

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