PROPELLER FOR VENTILATOR, WITH A VARIABLE CHORD LENGTH

摘要

The invention relates to a propeller (1) comprising a hub (3), a housing (4) and blades (2) radially extending between the hub (3) and the housing (4), each blade (2) comprising a foot (6) at the junction thereof with the hub (3) and a head (11) at the junction with the housing (4), each blade (2) having a leading edge (16) and a trailing edge (17) between which a chord is defined (15) at each flattened transverse section. For each blade (2), the chord (15) length varies between the foot (6) and the head (11), and the variation of the chord (15) length between the foot (6) and the head (11) has a point of inflection between two bearings.