EP 3030792 A1 20160615 - IMPELLER FOR AXIAL FANS
Title (en)
IMPELLER FOR AXIAL FANS
Title (de)
LAUFRAD FÜR AXIALLÜFTER
Title (fr)
ROTOR POUR VENTILATEUR AXIAL
Publication
Application
Priority
- DE 102014009051 A 20140624
- EP 2015001210 W 20150616
Abstract (en)
[origin: WO2015197167A1] The invention relates to an impeller (10) for an axial fan, comprising an impeller body (12), which has an outer impeller jacket (14) and a carrying disk (16) having a hub (18) for connecting to a drive shaft (20) in a rotationally fixed manner, wherein a plurality of blades (22) directed radially outward is arranged on the carrying disk (16), which blades each have a blade root (24) and a blade airfoil (26). According to the invention, each blade root (24) has a fastening section (90), which is accommodated in a positive-locking manner between two fastening segments (28, 44) arranged oppositely on either side of the carrying disk (16), the two opposite fastening segments (28, 44) and the carrying disk (16) each have at least two through bores (58, 60) for accommodating a long sleeve (46, 50) and a short sleeve (48, 52), and the fastening section (90) can be firmly clamped between two opposite fastening segments (28, 44) by means of threaded bolts (30, 32, 34, 36) inserted through the sleeves (46, 48, 50, 52) and by means of nuts (40, 42), wherein each blade root (24) is guided in a cut-out (102) in the carrying disk (16). As a result of the design according to the invention, the impeller (10) can be produced economically, predominantly using individual parts having a comparatively simple geometric form.
IPC 8 full level
F04D 29/36 (2006.01)
CPC (source: CN EP RU US)
F04D 29/325 (2013.01 - CN); F04D 29/329 (2013.01 - US); F04D 29/34 (2013.01 - CN US); F04D 29/36 (2013.01 - EP US); F04D 29/646 (2013.01 - CN); F04D 29/36 (2013.01 - RU); F05D 2230/60 (2013.01 - CN); F05D 2240/20 (2013.01 - CN)
Citation (search report)
See references of WO 2015197167A1
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)
DE 102014009051 A1 20151224; AU 2015281410 A1 20160324; AU 2015281410 B2 20171026; CN 105637227 A 20160601; CN 105637227 B 20181106; EP 3030792 A1 20160615; EP 3030792 B1 20181219; ES 2714277 T3 20190528; RU 2016115551 A 20171026; RU 2645887 C2 20180228; US 10132326 B2 20181120; US 2017122335 A1 20170504; WO 2015197167 A1 20151230
DOCDB simple family (application)
DE 102014009051 A 20140624; AU 2015281410 A 20150616; CN 201580001908 A 20150616; EP 15730394 A 20150616; EP 2015001210 W 20150616; ES 15730394 T 20150616; RU 2016115551 A 20150616; US 201514917145 A 20150616