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Ventilation bag is for blowing in air in connection with ventilation of buildings and has input connected to air supply for delivery of air with positive pressure difference in relation to building
Ventilation bag is for blowing in air in connection with ventilation of buildings and has input connected to air supply for delivery of air with positive pressure difference in relation to building
Ventilation bag (2) is for blowing in air in connection with ventilation of buildings and has input connected to air supply for delivery of air with positive pressure difference in relation to building. The bag has a radial extent (12) limited by its periphery. It has an axial extent (10) limited by its length. The bag is flexible, with its degree of opening dependent upon the ruling pressure difference. - The bag is flexible in a radial direction, with its radial extent determined by the pressure of the blown-in air. The bag can evidence a flow resistance, which is restricted by the bag radial extent. The bag can adjust to the pressure difference existing between the blown-in air in the bag and the pressure in the ambient space. A choking of the bag is automatically always corrected through a very weak extension of the bag periphery.
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