An air valve with improved ventilation

Abstract

The present invention relates to an air valve (1) for ventilation of rooms in a building. Said valve (1) is suitable to be installed and connected to an air duct (2) via a ventilation duct opening (3) in a surface of said room (4). The valve comprises a distal end (5) and a proximal end (6), wherein said distal end (5) is closer to the air duct (2) than the proximal end (6). The valve (1) further comprises an inner baffle element (7) located at a radially inside position. The valve (1) further comprises an outer baffle element (8) located at a radially outside position and surrounding said inner baffle element (7). An airflow space (9) is defined between said inner and outer baffle elements (7, 8). The diameter of said outer baffle element (8) decreases continuously from a first maximum predetermined value at said distal end (5) to a first minimum predetermined value at an intermediate position (11) between said distal end (5) and said proximal end (6). The diameter of said inner baffle element (7) increases continuously from a second minimum predetermined value (12) at said distal end (5) to a second maximum predetermined value at said proximal end (6). Said inner and outer baffle elements (7, 8) are defined by a fluent and continuous curve (14) between said distal and proximal ends (5, 6).

Dependencies are inferred from the claim text.