EP 0943808 B1 20040602 - Radial fan
Title (en)
Radial fan
Title (de)
Radiallüfter
Title (fr)
Ventilateur radial
Publication
Application
Priority
DE 19811877 A 19980318
Abstract (en)
[origin: EP0943808A2] The radial fan has a drum rotor (2), a casing (3) where the air pressure cavity runs spirally to an outflow aperture (5) and a casing tongue (6) at the side walls with a throttle radius, to separate the beginning (4') and end (4) of the pressure cavity. The casing tongue is made with a through curvature (7) over at least part of the width (B) of the casing.
IPC 1-7
IPC 8 full level
F04D 29/42 (2006.01)
CPC (source: EP)
F04D 29/422 (2013.01); F04D 29/4226 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0943808 A2 19990922; EP 0943808 A3 20010131; EP 0943808 B1 20040602; DE 19861061 A1 19991021; DE 19861061 C2 20030703; ES 2221254 T3 20041216
DOCDB simple family (application)
EP 99105557 A 19990318; DE 19861061 A 19980318; ES 99105557 T 19990318