EP 3215745 B1 20200401 - PROTECTIVE GRILLE WITH IMPROVED EFFICIENCY AND NOISE CHARACTERISTICS
Title (en)
PROTECTIVE GRILLE WITH IMPROVED EFFICIENCY AND NOISE CHARACTERISTICS
Title (de)
SCHUTZGITTER MIT VERBESSERTEM WIRKUNGSGRAD- UND GERÄUSCHVERHALTEN
Title (fr)
GRILLE DE PROTECTION À COMPORTEMENT AMÉLIORÉ EN TERMES DE BRUIT ET D'EFFICACITÉ
Publication
Application
Priority
- DE 102014116047 A 20141104
- EP 2015067821 W 20150803
Abstract (en)
[origin: US2017306985A1] A protective grille for a fan has a web structure which comprises radial webs spaced apart in a circumferential direction and coaxial circumferential webs spaced apart in a radial direction. The protective grille has at least a radial outer region and a central region around a central axis of the protective grille. An envelope surface spanned by the radial outer region and the central region is of convexly curved form in the radial outer region and is of flat form, parallel to a radial plane of the protective grille, in the central region.
IPC 8 full level
F04D 29/54 (2006.01); F04D 29/70 (2006.01); F24F 13/08 (2006.01)
CPC (source: EP US)
F04D 29/541 (2013.01 - EP US); F04D 29/703 (2013.01 - EP US); F24F 13/082 (2013.01 - EP US); F04D 19/002 (2013.01 - US); F24F 2013/088 (2013.01 - EP US)
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)
US 10760593 B2 20200901; US 2017306985 A1 20171026; CN 204512009 U 20150729; DE 102014116047 A1 20160504; DE 202014105284 U1 20141208; EP 3215745 A1 20170913; EP 3215745 B1 20200401; WO 2016071014 A1 20160512
DOCDB simple family (application)
US 201515517472 A 20150803; CN 201520009649 U 20150107; DE 102014116047 A 20141104; DE 202014105284 U 20141104; EP 15745489 A 20150803; EP 2015067821 W 20150803