FIELD: natural ventilation systems utilizing air funnels and used in livestock enterprises.
SUBSTANCE: device comprises louver grid. Air flow velocity sensor is arranged inside air funnel. The sensor is made as plate secured to rod so that the plate may cooperate with end switch electrically connected with executive mechanism, which rotates louver grid blades. One rod end is connected to inner air funnel wall. Adjustable weight is fastened to opposite rod end.
EFFECT: increased efficiency of air funnel capacity stabilization and regulation.
2 dwg
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