| 摘要 |
FIELD: ventilation. ^ SUBSTANCE: vortex local sucking pump has two hollow conical housings set one into the another. The bottom part of the internal housing receives the profiled filler with an opening. The top parts of the conical housings are provided from one side with passages allowing synchronization of air vortex inflows and outflows. ^ EFFECT: reduced power consumption and enhanced efficiency. ^ 2 dwg |
