JET FAN AND VEHICLE CONTAINING SUCH FAN Russian patent published in 2023 - IPC F04D25/08 F04F5/16 

FIELD: jet fan.

SUBSTANCE: invention describes a fan (10a, 10b, 10c, 10d 10e, 10f, 10g, 10h) containing the first transmission element (11) configured to be connected by fluid medium to the source (120, 121, 123, 203, 405, 410, 412) of the primary air flow (F1) and forming the first passage (12) for the primary air flow (F1); the first outlet (19) receiving the first aliquot of primary airflow (F1) from the first passage (12); the first Coanda surface (20) to which the first outlet (19) directs the first aliquot; and the first opening (14) connected by fluid medium with the first outlet (19) through which the first aliquot exiting the first outlet (19) and the secondary airflow (F2) pass; moreover, the fan (10a, 10b, 10c, 10d 10e, 10f, 10g, 10h) contains the second transmission element (30) connected by fluid medium to the first transmission element (11) and forming inside itself the second passage (32) for the second aliquot of the primary air flow (F1), and contains: the second outlet (35), receiving the second aliquot from the second passage (32), and the second Coanda surface (36), to which the second outlet (35) directs the second aliquot.
EFFECT: jet fan is described.

16 cl, 8 dwg