EP 3406910 B1 20191016 - CENTRIFUGAL FAN IMPELLER
Title (en)
CENTRIFUGAL FAN IMPELLER
Title (de)
ZENTRIFUGALGEBLÄSELAUFRAD
Title (fr)
HÉLICE DE VENTILATEUR CENTRIFUGE
Publication
Application
Priority
- JP 2016007181 A 20160118
- JP 2017001105 W 20170113
Abstract (en)
[origin: EP3406910A1] A shroud (80) has: a curved plate-like shroud curved plate portion (81); and flat plate-like shroud flat plate portions (82) corresponding to just parts of sections of the shroud (80) that oppose shroud-side blade axial end portions (72). In the blade axial end portions (72) are formed blade flat surfaces (72a) that follow the shroud flat plate portions (82) and blade curved surfaces (72b, 72c) that follow the shroud curved plate portion (81). Welded portions (8b) resulting from the blade flat surfaces (72a) and the shroud flat plate portions (82) being welded to each other are formed between the blade axial end portions (72) and the shroud (80).
IPC 8 full level
F04D 29/28 (2006.01); F04D 29/30 (2006.01); F04D 29/66 (2006.01)
CPC (source: EP)
F04D 29/28 (2013.01); F04D 29/281 (2013.01); F04D 29/30 (2013.01); F04D 29/626 (2013.01); F04D 29/66 (2013.01)
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)
EP 3406910 A1 20181128; EP 3406910 A4 20190102; EP 3406910 B1 20191016; BR 112018013261 A2 20181204; CN 108474389 A 20180831; CN 108474389 B 20190709; ES 2765859 T3 20200611; JP 2017129024 A 20170727; JP 6314998 B2 20180425; WO 2017126444 A1 20170727
DOCDB simple family (application)
EP 17741322 A 20170113; BR 112018013261 A 20170113; CN 201780006713 A 20170113; ES 17741322 T 20170113; JP 2016007181 A 20160118; JP 2017001105 W 20170113