FIELD: machine building.
SUBSTANCE: in disclosed here device screw corrugations with identical directions of incline are made on working surfaces of rotor and stator. Corrugations intensify mechanical effect on material. A screw shape of corrugations improves their transporting capability, particularly in the point of conjugation of working surfaces of the rotor and a case. Identical direction of inclines of lines of screw corrugations ensures growth of share of vertical constituent of bevel shift of rotor working surface relative to working surface of the case conjugated with it.
EFFECT: increased share of tangential constituent of material effecting force and increased transport capability of working surfaces of rotor and stator.
1 dwg
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