FIELD: construction.
SUBSTANCE: invention is related to the field of construction, namely to designs of windows. Device for limitation of air flow for window with forced ventilation comprises locking accessory for automatic opening and closing of ventilation track depending on difference of pressures. Locking accessory is arranged with spring or soft elastic damping element, which, in case device that limits air flow is closed, works for bending and at the same time quenches closing motion of locking accessory.
EFFECT: invention makes it possible to increase accuracy of ventilation throttling with low difference of air pressure and window noise insulation.
6 cl, 8 dwg
