EP 3688285 A1 20200805 - AXIAL FAN BLADE WITH WAVY AIRFOIL AND TRAILING EDGE SERRATIONS
Title (en)
AXIAL FAN BLADE WITH WAVY AIRFOIL AND TRAILING EDGE SERRATIONS
Title (de)
AXIALLÜFTERSCHAUFEL MIT WELLENFÖRMIGEN SCHAUFELBLATT- UND HINTERKANTENVERZAHNUNGEN
Title (fr)
PALE DE VENTILATEUR AXIAL AYANT UNE SURFACE PORTANTE ONDULÉE ET DES DENTELURES DE BORD DE FUITE
Publication
Application
Priority
- US 201762565713 P 20170929
- US 2018053136 W 20180927
Abstract (en)
[origin: WO2019067727A1] An axial flow fan includes a hub rotatable about a fan axis and a plurality of fan blades mounted to the hub. One of the plurality of fan blades includes at least one wave extending in a span wise direction over the fan blade and at least one serration extending along a trailing edge of the fan blade. The at least one wave and the at least one serration are arranged at a location between 40% and 100% of a span of the fan blade.
IPC 8 full level
F01D 5/14 (2006.01); F04D 29/38 (2006.01)
CPC (source: EP US)
F01D 5/141 (2013.01 - US); F04D 29/384 (2013.01 - EP US); F01D 5/147 (2013.01 - US); F04D 29/324 (2013.01 - US); F05D 2240/301 (2013.01 - EP US); F05D 2240/303 (2013.01 - US); F05D 2240/304 (2013.01 - EP US); F05D 2240/307 (2013.01 - US); F05D 2250/184 (2013.01 - EP)
Citation (examination)
US D916269 S 20210413 - BUSHNELL PETER R [US], 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)
WO 2019067727 A1 20190404; CN 111108263 A 20200505; EP 3688285 A1 20200805; JP 2020536193 A 20201210; RU 2020111828 A 20211029; RU 2020111828 A3 20220225; SG 11202002887Q A 20200429; US 2020240431 A1 20200730
DOCDB simple family (application)
US 2018053136 W 20180927; CN 201880063236 A 20180927; EP 18788952 A 20180927; JP 2020517314 A 20180927; RU 2020111828 A 20180927; SG 11202002887Q A 20180927; US 201816651096 A 20180927