Take a look at this compressor rotor
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Take a look at what this rotor on the right is used for
It would be better to have another photo of the inlet on the other side of the impeller
It’s not intentional; it’s because there is damage to the edge of the impeller, and since there is no spare rotor, the blade shape has to be adjusted in this uniform manner. It’s a bit less efficient, but it can solve temporary problems.
It might be possible to make repairs=^_^=
Meeting for the first time – impressive; it works this way too