AXIAL MULTI-STAGE COMPRESSOR Russian patent published in 1995 - IPC

FIELD: compressor engineering. SUBSTANCE: disks of the first and second rotors are mounted on the shaft set in bearings. The working wheels of the second rotor are interposed between the first and last stages of the first rotor. An electric machine with stator exciting winding and current-collecting devices made up as electric brushes with brush holders contacting with the end disks is mounted on the shaft of the compressor. The shaft is provided with an insulating bushing. The second rotor is mounted on the bushing. Conducting guide blades with the inner ring are interposed between the working blades. The ring has rectangular grooves for receiving the brush holders. The first rotor can be provided with current- collecting devices. EFFECT: enhanced efficiency. 2 cl, 3 dwg