| 摘要 |
FIELD: machine building. ^ SUBSTANCE: supply unit has working chamber into which impeller with blades interacting at least with one delivery duct 28 provided in the working chamber is installed with possibility of rotation. Duct passes circle-wise from suction side to delivery side. Dividing gap is formed between ends of delivery duct. In dividing gap 34 separating delivery duct 28 end located on suction side from its end located on delivery side there provided is at least one projection 35 acting as hydrodynamic support of impeller. ^ EFFECT: providing constant axial position of impeller installed in working chamber at simplified hydrodynamic support of impeller. ^ 10 cl, 3 dwg |
