CENTRIFUGAL COMPRESSOR Russian patent published in 2014 - IPC F04D25/00 

FIELD: machine building.

SUBSTANCE: centrifugal compressor comprises a case with radial input and output holes coaxial to each other, the case inside is fitted by a suction chamber, a rotor with an overhanging impeller, a diffuser with blades and a diaphragm. The case cavity forms a collection chamber, the suction chamber is made as a bend set inside the collection chamber, the input hole of the bend matches the input hole of the case, and the output hole of the bend is set coaxially to the impeller, an annular spacer separating the suction and discharge cavities is installed between the bend's output hole and the diffuser's diaphragm, the inner diameter of the spacer on one side corresponds to the diameter of the bend output hole and on the other side - to the diameter of the impeller input.

EFFECT: reduced dimensions and weight of an installation, no necessity to use additional discharge and suction branch pipes, channels, improved reparability and reliability of a centrifugal compressor.

9 cl, 5 dwg