EP 3833876 B1 20220223 - CENTRIFUGAL BLOWER HAVING AN INTEGRATED COOLING FUNCTION
Title (en)
CENTRIFUGAL BLOWER HAVING AN INTEGRATED COOLING FUNCTION
Title (de)
RADIALLÜFTER MIT INTEGRIERTER KÜHLFUNKTION
Title (fr)
VENTILATEUR RADIAL À FONCTION DE REFROIDISSEMENT INTÉGRÉE
Publication
Application
Priority
- DE 102018129613 A 20181123
- EP 2019079619 W 20191030
Abstract (en)
[origin: WO2020104153A1] The invention relates to a centrifugal fan (1), comprising: a fan housing (2) having a spiral pressure chamber (D); a rotor assembly (10), which has an internally axially open bearing tube (20), in which a shaft (40) carrying a fan wheel (30) is mounted, which shaft has a rotor (50) of a canned motor, wherein an air-guiding channel (L) between a first pressure-chamber region (2a) and a second pressure-chamber region (2b) of the spiral pressure chamber (D) is formed between the bearing tube (20) and the wall (W) of the canned motor so that an air flow flows through the air-guiding channel (L) from the one to the other pressure-chamber region (2a, 2b) and removes heat from the bearing tube (20) into the pressure chamber (D).
IPC 8 full level
F04D 25/06 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP KR US)
F04D 17/16 (2013.01 - US); F04D 25/0606 (2013.01 - EP KR); F04D 25/082 (2013.01 - EP KR); F04D 29/056 (2013.01 - EP KR US); F04D 29/162 (2013.01 - EP KR); F04D 29/4226 (2013.01 - EP KR); F04D 29/441 (2013.01 - US); F04D 29/5806 (2013.01 - EP); F04D 29/584 (2013.01 - EP KR US); F04D 29/5853 (2013.01 - EP KR); F05D 2210/12 (2013.01 - KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020104153 A1 20200528; CN 112955663 A 20210611; CN 112955663 B 20230314; CN 209444583 U 20190927; DE 102018129613 A1 20200528; EP 3833876 A1 20210616; EP 3833876 B1 20220223; KR 102541764 B1 20230613; KR 20210072775 A 20210617; US 11339801 B2 20220524; US 2021388850 A1 20211216
DOCDB simple family (application)
EP 2019079619 W 20191030; CN 201822235205 U 20181228; CN 201980069029 A 20191030; DE 102018129613 A 20181123; EP 19797651 A 20191030; KR 20217011209 A 20191030; US 201917286399 A 20191030