FIELD: non-displacement compressors and pumps.
SUBSTANCE: in some embodiments, the suction chamber of the power transmission device between the rotating member and the fluid medium can comprise a through hole extending through the suction chamber, and inlet guide vanes located near the through hole peripheral edge and comprising a first group of inlet guide vanes having a bent profile, and a second group of inlet guide vanes extending radially inward from the first group guide vanes, wherein input guide vanes of first group are in fixed position relative to suction chamber, and inlet guide vanes of second group are made with possibility of movement relative to suction chamber.
EFFECT: embodiments of device for energy transfer between rotary element and fluid are proposed.
16 cl, 7 dwg
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