Chinese Engine Development

sunnymaxi

sunnymaxi

Major
Registered Member
latenlazy said:
We saw a single piece 3D printed CMC compressor blisk fly on a tiny demonstrator maybe two years ago
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that was three years ago

''An integrated blade/rotor assembly. They were bench testing a CMC blisk at X'ian University before they flight tested a CMC blisk on January 1, 2022 in Zhuzhou, Hunan. The flight test was a proof of concept so the real stress testing was all done in the lab''

most probably they have taken more flights for further testing and material validation. its been three years now so we can expect CMC in CJ-2000 Engine as RR's UltraFan has CMC, GE commercial Engines also using this.

AECC official Weibo handle do compare CJ-2000 with similar products globally.
 
L

latenlazy

Brigadier
tphuang said:
It makes me wonder how much something like you'd put on a BYD vehicle as brakes would differ from something you'd use in a turbofan engine. I'm sure the requirements inside turbines would be higher. But this is one area where since it's still a relatively new field, China can get to the front relatively quickly.
View attachment 139788
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From the limited reading I’ve done on CMCs the quality of the fibers and their specific weave, and the ceramic matrix properties all need to be tailored for the specific application. Crack resistance is a big deal for fan blade applications. I think the primarily question for adoption is part life and durability for high temperature high strain conditions.
 
by78

by78

General
More high-resolution images from Zhuhai.

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