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1. (WO2018219414) FAN AND INLET GUIDE GRID FOR A FAN

Pub. No.:    WO/2018/219414    International Application No.:    PCT/DE2018/200053
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 23 01:59:59 CEST 2018
IPC: F04D 29/42
F04D 29/44
F04D 29/54
F04D 29/66
F04D 29/70
Applicants: ZIEHL-ABEGG SE
Inventors: LOERCHER, Frieder
Title: FAN AND INLET GUIDE GRID FOR A FAN
Abstract:
Disclosed is a fan (radial or axial fan) comprising an impeller wheel and an inlet guide device in the flow path upstream of the impeller wheel, preferably upstream of the inlet region of an inlet nozzle, said inlet guide device taking the form of an inlet guide grid with ribs and/or guide vanes which are arranged and designed so that a substantially swirl-free inflow is produced and that the flow can be modified circumferentially.