| 摘要 |
FIELD: instrument making. ^ SUBSTANCE: invention is related to fan making. Axial fan-propeller comprises drive (1), device that realises reversal of coaxial shafts, central shaft (10) installed inside hollow shaft (8) with inlet blade reverse-screw (12). Central shaft is equipped with a row of central blade screws (13) with intervals, where in bearings (14) hollow reverse-screws (15) are installed and connected to each other and to inlet blade reverse-screw by means of superchargers (16) of aerodynamic profile. ^ EFFECT: invention provides for expansion of functional resources with simultaneous reduction of dimensions. ^ 2 cl, 3 dwg |
