EP 0410271 B1 19940921 - Feed device for gaseous medium.
Title (en)
Feed device for gaseous medium.
Title (de)
Vorrichtung zum Fördern eines gasförmigen Mediums.
Title (fr)
Dispositif de transport de milieu gazeux.
Publication
Application
Priority
DE 3924281 A 19890722
Abstract (en)
[origin: EP0410271A2] A radial fan is proposed, which is provided especially for the use of gas heating boilers in which ceramic surface burners are used. This radial fan has a helical internal contour (12) and has a closed impeller (6) with backwards curved blades (8). It is distinguished by its low space requirement and low noise. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/30 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01)
CPC (source: EP)
F04D 29/281 (2013.01); F04D 29/4226 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0410271 A2 19910130; EP 0410271 A3 19910807; EP 0410271 B1 19940921; DE 3924281 A1 19910131; DE 59007207 D1 19941027; JP H0357899 A 19910313
DOCDB simple family (application)
EP 90113649 A 19900717; DE 3924281 A 19890722; DE 59007207 T 19900717; JP 19091990 A 19900720