Apparatus for the controlled ventilation of rooms

Details Apparatus for the controlled ventilation of rooms Apparatus for the controlled ventilation of rooms

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F24F 13/02 (2006.01) F24F 7/08 (2006.01) F24F 11/04 (2006.01) F24F 13/10 (2006.01) G01F 1/40 (2006.01) G05D 7/06 (2006.01)

Patent

CA 2021680

An apparatus for the controlled ventilation of a room has a control mechanism, which includes a quantity control and measurement means, and is incorporated in a ventilation duct portion. The control mechanism includes a tubular, hollow body in the form of a flow body which has two pressure measuring chambers arranged successively in flow direction. The chambers are provided with rows of openings which produce a connection to flow-through cross-sections of the control mechanism which have different airflow speeds. The airflow is measured by means of a differential pressure detector, which is connected to the pressure measuring chambers by means of two short passages. The apparatus has a low airflow loss and a low flow noise. As a result of its favourable flow guidance, the apparatus may be positioned directly adjacent to branching points of a ventilation duct.

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