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1. (WO2010115637) REINFORCING ELEMENT FOR USE WITH A VENTILATOR HUB

Pub. No.:    WO/2010/115637    International Application No.:    PCT/EP2010/002222
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Sat Apr 10 01:59:59 CEST 2010
IPC: F04D 29/02
F04D 29/32
Applicants: W & S MANAGEMENT GMBH & CO. KG
WITT, Henrik
Inventors: WITT, Henrik
Title: REINFORCING ELEMENT FOR USE WITH A VENTILATOR HUB
Abstract:
In order to provide a ventilator hub (1) having means (2, 3) for connecting to a ventilator shaft and a substantially cylindrical fastening section (4) having radial receptacles (6) for a number of ventilator blades, the fastening section (4) comprising an inner lateral surface (5), wherein said hub ensures fastening of ventilator blades with sufficient tensile force even at high temperatures as those that can occur during tunnel fires, without having a undesirable high mass, it is proposed to provide the ventilator hub with a substantially ring-shaped closed reinforcing element (7) which is designed substantially separately from the fastening section (4) and has means (10) for the high-tensile fastening of the ventilator blades.