FIELD: engines and pumps.
SUBSTANCE: centrifugal compressor 10 includes division wall 37 dividing the pass of section 15 of diffuser and section 16 of spiral chamber into several channels in medium flow direction so that pass A is formed on the hub side and pass (B) on bandage side, and flow regulating valve 36. Valve 36 is designed for increasing the flow in pass A owing to decreasing the flow in pass B at low flow rate of fluid medium compressed with impeller 13, and for medium supply to pass B and to pass A without reducing the flow rate in pass B at high flow rate of fluid medium compressed with impeller 13.
EFFECT: design of high-efficiency centrifugal compressor showing high reliability at stable operation and wide operating range.
7 cl, 26 dwg
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