| 摘要 |
FIELD: mechanical engineering. SUBSTANCE: durable blower has spiral housing 3, working wheel 2 with vanes that is mounted inside the housing and positioned partially inside the hollow in the back wall of the housing, and inlet branch pipe 1 whose exit is positioned with a spaced relation with respect to the vanes of the working wheel. The hollow is a truncated cone. In operation a significant portion of gas or liquid by-passes the vanes and, under the action of a vortex produced by the working wheel, moves from the inlet to the delivery-outlet branch pipe 5. EFFECT: increased durability. 3 dwg |
