Chinese Engine Development
- Thread starter jackbh
- Start date
The video from Phoenix Channel said,
Breakthrough in the research of thrust-vectoring engine by Prof Wang, who is a pioneer in 3D printing. He led research in a novel delayering technique as applied to a certain thrust-vectoring engine flame tube driven under high-temperature and heavy-load conditions. There was no apparent abrasion after a cumulative 216 hours of testing, whereas a maximum of 2 mm abrasion depth occurred after about 10+ hours of testing under traditional configurations.
Breakthrough in the research of thrust-vectoring engine by Prof Wang, who is a pioneer in 3D printing. He led research in a novel delayering technique as applied to a certain thrust-vectoring engine flame tube driven under high-temperature and heavy-load conditions. There was no apparent abrasion after a cumulative 216 hours of testing, whereas a maximum of 2 mm abrasion depth occurred after about 10+ hours of testing under traditional configurations.
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Quickie
Colonel
Take note of the overlapping rings in the second picture. It looks like the engine nozzle can be swiveled 360 degree. The thing is the same thrust vectoring technology can be applied to different types of engine be it AL-31, WS-10A/B etc.
Blackstone
Brigadier
How reliable is the aforementioned Professor Wang? How much of it is real and how much PR propaganda?
It also mentioned that China need to observe exactly how the 117S engine work, so the latter's design could speed up China's own R&D. However, buying the Su-35 and 117S engines does not mean that China will use 117S on J-20s.
Some background info on Prof. Wang Huaming and 3D printing applied to aircrafts.
World's Largest 3D Printed Titanium Aircraft Part On Display In China
"The world's largest 3D printed titanium aircraft part was displayed at the 16th China International High-tech Expo earlier this year. The part was built on a Laser Engineered Net Shaping (LENS) 3D printer and is a critical component for the J-20 or J-31 Chinese stealth fighter. The company behind the creation of the hi-tech jet part is AVIC Laser, formed in part by Professor Huaming Wang, creator of the mammoth 3D LENS printer used to build the part."
"Another aviation materials specialist, Professor Wang Huaming , from the Beijing University of Aeronautics and Astronautics, told a workshop at the Chinese Academy of Sciences late last year that China now needed just 55 days to "print out" four hyperboloid cockpit window frames for the C919. He said a European aircraft maker had said it would need at least two years to do the same job, with the cost of making a mould put at US$2 million........
Wang, who formed a team of researchers to study 3-D printing materials in 2000, said they were now able to mix many different kinds of materials together to imitate some sophisticated, high-end aircraft components. He said his research team had made many breakthroughs in 3-D printing technology, such as printing out key titanium alloy structures as big as 5 square metres which had been used in many new-generation military aircraft projects."
The TV program also said that Prof. Wang was recently elected as a member of the Chinese Academy of Engineering, among 70 scientists.
As far as I know it is a AL-31. The outter petals of AL-31 and WS-10 are arranged differently. I think that is how you determined it is an AL-31.
Using different/wrong footage is very common by these news outlet especially non-CCTV channels.
Blackstone
Brigadier
Thanks for the info, a1a, but it doesn't answer the question how reliable Professor Wang's claims are. I don't mean to be unduly negative about Chinese engine achievements, but there have been so many claims of success in that industry, and yet there are so few Chinese engines on jet aircrafts, it makes you wonder where they hide all the great products. Who knows, maybe there are thousands of world class Chinese jet engines on all sorts of airplanes, and the Chinese turbofan industry play them down for modesty reasons.
Even publications in Nature or Science needed to be verified and there is no practical way to verify here for the moment. Only time will tell.