Turbofan:Compressor
From NPrize
Compressor design
Overall view and notes
Rotor design
Compressor blades mounting
For the first compressor stage and the fan, the design is simplified by putting the roots of the blades parallel to the shaft. On stages 2 and 3, blades are not long enough, and to finish at the correct angle and not be twisted too much, they need to start at a non-zero angle. That brings problems to the design of the blade socket and fixing. The two pictures below propose a solution to this problem: blades' roots remain linear, the milling of the mounting is linear too, while it's a round part. This makes a strange effect, but allows the blades to be properly fixed on their sides, and if not enough, by a keyed design.
2nd and 3rd stage's compressor blade close-up and manufacturing
Coming soon.
Stator design
Even more complicated.
