Ventilation regulation system, air regulation apparatus for use therewith and drum segment forming part of the regulation apparatus

An air regulation apparatus for use with a ventilation regulation system for conducting air being forced from an air supply area to a destination area, the ventilation regulation system of the type comprising a separating wall between the air supply area and the destination area and a ventilation opening through the separating wall for allowing air flow therethrough, said air regulation apparatus for installation at least partly within the ventilation opening for regulating the air flow through the ventilation opening, said air regulation apparatus comprising:

• a modular air regulation drum member that has a number of rotatable drum segments that can each rotate to adjustably block or deflect the air flow through said ventilation opening such that at least one among a direction, a speed and a debit rate of air is controlled through the ventilation opening;
• a mechanical coupling mechanically linking all the rotatable drum segments of said at least one modular air regulation drum member into a coordinated rotational movement;
• and
• an actuator acting on at least one, but not all, of said rotatable drum segments of said modular air regulation drum member to rotate said at least one of said rotatable drum segments, with the mechanical coupling allowing all the rotatable drum segments to be rotated when said at least one of the rotatable drum segment is rotated.