EP 0784510 A1 19970723 - TWO-STEP AIR FILTER HAVING EFFECTIVE IONISATION
Title (en)
TWO-STEP AIR FILTER HAVING EFFECTIVE IONISATION
Title (de)
ZWEI-STUFEN LUFTFILTER MIT IONIZATION HÖHER LEISTUNG
Title (fr)
FILTRE A AIR A DEUX ETAGES ASSURANT UNE IONISATION EFFICACE
Publication
Application
Priority
- SE 9501126 W 19951003
- SE 9403369 A 19941005
Abstract (en)
[origin: WO9611060A1] A device for air cleaning, preferably from suspended particles, so-called aerosols, including a so-called ion chamber (10; 10'), i.e. a space where charging of aerosols takes place, and a so-called precipitator (12; 12') for separation of charged aerosols from the air by-passing the device. The air transport through the device can be effected with the aid of a fan (26; 26'), by natural draught or in another way. The air first passes through the ion chamber (10; 10') where an ionizing source (14; 14') is located, and then passes between the electrode elements of the precipitator (12; 12'), said elements being provided at a distance from each other and applied to a voltage in such a way that a strong electrostatic field is present between adjacent electrode elements. At least the repelling electrode elements (R) of the precipitator (12; 12') are manufactured of a high-resistive material that preferably is coated with an insulating layer. The ionizing source (14; 14') could be in the shape of a so-called corona electrode that in a suitable way is connected to one terminal of a high voltage source (18; 18') whereby ions of suitable polarity are generated around said corona electrode or generated in another way, e.g. via UV-light. The dimensions and design of the ion chamber (10; 10') as well as the location of the ionizing source (14; 14') inside the ion chamber (10; 10') are such that the migration and propagation of the ions in the ion chamber (10; 10') are mostly controlled partly by the repelling forces in the ion cloud and partly by the movement of the air through the chamber (10; 10').
IPC 1-7
IPC 8 full level
CPC (source: EP)
B03C 3/12 (2013.01); B03C 3/38 (2013.01); B03C 3/383 (2013.01)
Citation (search report)
See references of WO 9611060A1
Designated contracting state (EPC)
BE CH DE DK FR GB GR IT LI NL PT
DOCDB simple family (publication)
WO 9611060 A1 19960418; AU 3691295 A 19960502; EP 0784510 A1 19970723; SE 9403369 D0 19941005
DOCDB simple family (application)
SE 9501126 W 19951003; AU 3691295 A 19951003; EP 95934379 A 19951003; SE 9403369 A 19941005