AIR FLOW REGULATING DEVICE

摘要

The present invention relates to an air flow regulating de- vice for controlling the air flow in an air supply device, comprising a duct portion in which a damper, having one or more apertures, is movable by means of an actuating device. The damper is operable in two modes only, namely: a first mode of operation in which said damper is fully open, thereby permitting a high air flow through said air flow regulating device; and a second mode of operation in which said damper is fully closed so that air only flows through said apertures, thereby only permitting a low airflow through said air flow regulating device, wherein the low air flow is no more than half of said high air flow. The invention also relates to an air supply system provided with such an air flow regulating device.