FIELD: engines and pumps.
SUBSTANCE: invention relates to radial blowers. Blower comprises scroll case, radial impeller, inlet manifold, and tongue. Impeller comprises front and rear discs arranged on inlet manifold side and vanes arranged there between to make vane channels. Tongue has edges jointed to scroll case wall on drive motor side and arranged parallel with impeller rotational axis and inclined edge said edges together. Said inclined edge is arranged at impeller outlet in projection on vane channel that crosses in diagonal with due allowance for vane circumferential thickness.
EFFECT: reduced noise.
10 cl, 19 dwg
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