INRICHTING VOOR HET REGELEN VAN DE STROMING VAN EEN GASVORMIG MEDIUM IN EEN BUISVORMIGE LEIDING.

摘要

The specification describes a flow regulator for ducts in the case of which the free cross-section of the duct is arranged to be varied by a flap which can be turned against spring force by the flow in the closing direction. The flap is angled adjacent to the shaft and its one limb in the open position is directed substantially parallel to the axis of the duct to the rear and its other limb is directed in the closed position substantially perpendicularly to the duct axis. The spring force is adapted to act from the direction of the wall of the duct on a lever arm attached to the shaft in such a manner that the point of action of the force on rotation of the flap out of the open position into the closed position describes a circular arc, which are at the beginning is more oblique to the direction of the spring force than at the end.