EP 1440242 B1 20060614 - SMOKE PROTECTION FOR ROOMS
Title (en)
SMOKE PROTECTION FOR ROOMS
Title (de)
RAUCHSCHUTZ FÜR RÄUME
Title (fr)
PROTECTION DE LOCAUX CONTRE LA FUMEE
Publication
Application
Priority
- DE 0204058 W 20021031
- DE 10153350 A 20011031
Abstract (en)
[origin: WO03038283A2] The invention relates to a method and a device for keeping escape and rescue paths free of smoke, whilst taking into account permissible pressure differentials between adjacent corridors and stairwells, by means of a pressurization unit. A by-pass flow is generated around a building with an axial ventilator by means of a system of flaps which are self-closing, with the guarantee that the flaps open under the effect of a given over-pressure in the escape path and thus release the by-pass. The moments for opening the flaps are set such that the pressure forces or pneumatic forces of the flow in the by-pass are sufficient and the moments for closing the flaps are provided by a mechanical tension- or compression-spring system. The cross-over point of both moment curves determines the maximum of the self-regulated opening area of the flaps, giving an independent, directly-acting regulation system as a result of pressure changes in the escape path, which opens with a reaction time corresponding to the maximum escape path height or escape path length taking account of the speed of sound and closes with a reaction time proportional to the mass moment of inertia / restoring moment of the spring system of the flaps.
IPC 8 full level
F04D 27/02 (2006.01); F24F 7/06 (2006.01); F24F 11/00 (2006.01); F24F 13/14 (2006.01)
CPC (source: EP)
F04D 27/009 (2013.01); F24F 7/06 (2013.01); F24F 11/0001 (2013.01); F24F 11/33 (2017.12); F24F 13/1413 (2013.01); F24F 2011/0004 (2013.01); F24F 2013/146 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03038283 A2 20030508; WO 03038283 A3 20030828; AT E330130 T1 20060715; DE 10251149 A1 20030515; DE 20221230 U1 20051110; DE 50207222 D1 20060727; EP 1440242 A2 20040728; EP 1440242 B1 20060614; PL 211736 B1 20120629; PL 374153 A1 20051003
DOCDB simple family (application)
DE 0204058 W 20021031; AT 02802275 T 20021031; DE 10251149 A 20021031; DE 20221230 U 20021031; DE 50207222 T 20021031; EP 02802275 A 20021031; PL 37415302 A 20021031