Fabric air outlet device

The air conditioning element according to claim 1, wherein the centre lines of the through holes constituting the first array are parallel to each other, extend along identical conical surfaces, or extend along mutually parallel conical surfaces.

The air conditioning element according to claim 1, wherein at least some of the centre lines of the through holes constituting the first array are mutually concurrent.

The air conditioning element according to claim 1, wherein the wall comprises at least one second array of through holes to which the following relations apply:

• a twofold value of the square root of the quotient between a value of an inlet area of the through hole and the value π is less than or equal to a value of the wall thickness of the element in a region adjacent to said through hole of the second array, and
• centre lines of the through holes constituting the second array intersect inlet planes of said through holes at an angle β between 60° and 90°, said centre lines being not parallel to the centre lines of the through holes constituting the first array.

The air conditioning element according to claim 4, wherein the value of the angle α is different from that of the angle β.

The air conditioning element according to claim 5, wherein the through holes belonging to at least one of the arrays taper from their inlet sections towards their outlet sections.

The air conditioning element according to claim 1, wherein the through holes belonging to the first array taper from their inlet sections towards their outlet sections.

The air conditioning element according to claim 1, wherein the element is a duct having an inlet end and an outlet end and the centre lines of the through holes arranged in a vicinity of the inlet end of the element intersect the inlet planes of the respective through holes at an angle α that is less than the angle α formed by the centre lines of the through holes arranged in a vicinity of the outlet end of the element.

The air conditioning element according to claim 1, wherein the wall of the element is formed by a textile stuffing material filling up a rectangular or circular framework structure and the centre lines of the through holes are inclined with respect to the inlet planes of said through holes, the inclination of said centre lines being adapted for directing air in a manner enabling an air flow leaving the element to whirl.

The air conditioning element according to claim 1, wherein the wall of the element is formed by a textile stuffing material filling up a framework structure and sewn together so as to assume the shape of a triangular or a multiangular pyramid.