24-02-2022 дата публикации
Номер: US20220056917A1
Принадлежит:
A fan is described with a first conveying element, fluidly connectable with a source of a primary air flow and defining a first passage for the primary air flow; a first mouth receiving a first aliquot of the primary air flow from the first passage; a first Coanda surface onto which the first mouth directs the first aliquot; and a first opening fluidly connected with the first mouth and crossable by the first aliquot coming of the first mouth and a secondary air flow; the fan comprises a second conveying element, fluidly connected with the first conveying element and defining internally a second passage for a second aliquot of the primary air flow, and comprises: a second mouth receiving the second aliquot from the second passage and a second Coanda surface onto which the second mouth directs the second aliquot. 11010101010101010a,b,c,d,e,f,g,h. A fan () comprising:{'b': ['11', '120', '121', '122', '123', '203', '205', '405', '410', '412', '1', '12', '1'], '#text': 'a first annular conveying element (), fluidly connectable with a source (, , , , , , , ) of a primary air flow (F) and defining therein a first passage () for said primary air flow (F);'}{'b': ['19', '1', '12'], '#text': 'a first mouth () receiving, in use, a first aliquot of said primary air flow (F) from said first passage ();'}{'b': ['20', '19', '1'], '#text': 'a first Coanda surface () on which said first mouth () directs, in use, said first aliquot of said primary air flow (F);'}{'b': ['14', '19', '1', '19', '2', '1'], '#text': 'a first opening () fluidly connected with said first mouth () and crossable, in use, by said first aliquot of said primary air flow (F) coming out of said first mouth () and by a secondary air flow (F) drawn by said primary air flow (F); and'}{'b': ['30', '11', '32', '1'], '#text': 'at least one second annular conveying element (), fluidly connected with said first conveying element () and defining therein a second passage () for a second aliquot of said primary air flow (F ...
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