EP 3076023 A1 20161005 - CENTRIFUGAL FAN
Title (en)
CENTRIFUGAL FAN
Title (de)
ZENTRIFUGALGEBLÄSE
Title (fr)
VENTILATEUR CENTRIFUGE
Publication
Application
Priority
JP 2015070176 A 20150330
Abstract (en)
A centrifugal fan(10,110,210) includes an impeller(30), a motor(40) rotating the impeller(30) about a center axis(J), and a housing(20,120,220) accommodating the impeller(30). The housing(20,120,220) includes an intake port(61) arranged above the impeller(30), an exhaust port(62,162) arranged radially outward of the impeller(30), an annular upper flow path(51), and a lower flow path(52,252) arranged below the upper flow path(51) and connected to the upper flow path(51). The annular upper flow path(51) can be partially arranged between a housing(20,120,220) inner circumferential surface and the impeller(30) in a radial direction. The upper flow path(51) and the lower flow path(52,252) are arranged to define a flow path having a scroll shape.
IPC 8 full level
F04D 25/06 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01)
CPC (source: CN EP US)
F04D 17/16 (2013.01 - US); F04D 25/06 (2013.01 - EP US); F04D 25/08 (2013.01 - CN US); F04D 29/281 (2013.01 - US); F04D 29/4206 (2013.01 - CN); F04D 29/4226 (2013.01 - CN EP US); F04D 29/4233 (2013.01 - US); F04D 29/441 (2013.01 - CN EP US)
Citation (search report)
- [XI] US 2010014965 A1 20100121 - WATANABE CHIE [JP], et al
- [XI] WO 9964747 A1 19991216 - RESMED LTD [AU], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3076023 A1 20161005; CN 106015038 A 20161012; CN 106015038 B 20190618; CN 205423220 U 20160803; JP 2016191309 A 20161110; JP 6554867 B2 20190807; US 2016290358 A1 20161006
DOCDB simple family (application)
EP 16155020 A 20160210; CN 201610086575 A 20160216; CN 201620121661 U 20160216; JP 2015070176 A 20150330; US 201614990261 A 20160107