FIELD: mechanical engineering; ventilators and fans. SUBSTANCE: proposed cross-flow fan has blade wheel, housing with inlet and outlet holes and flat wall separating the holes. flat wall is provided with louver from side of blade wheel whose louvers are pointed to blade wheel. louver has length equal to 0.25-0.50 of outer diameter of wheel, and open area factor equal to 0.20-0.40. Edge of louver is arranged at angle equal to 15...30° relative to maximum radius of housing. EFFECT: provision of high efficiency at low noise level. 4 cl, 2 dwg
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Authors
Dates
2003-05-10—Published
2001-10-22—Filed