EP 2242932 B1 20170712 - A MERIDIONAL FAN
Title (en)
A MERIDIONAL FAN
Title (de)
MERIDIONALER LÜFTER
Title (fr)
VENTILATEUR MÉRIDIONAL
Publication
Application
Priority
- GB 2009000088 W 20090113
- GB 0800582 A 20080114
Abstract (en)
[origin: GB2452104A] An axial fan rotatably mounted in a cylindrical duct ring 3 has a plurality of fan blades 2 with peripheral blade tips 4 describing, in operation, a circular path adjacent the duct ring 3. The blade tips 4 each have a leading edge 6 in the axial direction, a trailing edge 9 and a tip outer surface, at least one of the edges 6,9 and/or the outer surface having a non-uniform profile for influencing the flow of air over the said tip outer surface. The non-uniform profile may take the form of undulations, grooves or steps. A flange 5 may be provided at the blade tip.
IPC 8 full level
F04D 29/38 (2006.01); F04D 29/68 (2006.01)
CPC (source: EP GB)
F04D 29/384 (2013.01 - EP GB); F04D 29/681 (2013.01 - EP)
Citation (examination)
US 2003095864 A1 20030522 - IVANOVIC BORISLAV [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
GB 0800582 D0 20080220; GB 2452104 A 20090225; GB 2452104 B 20090722; EP 2242932 A1 20101027; EP 2242932 B1 20170712; ES 2636989 T3 20171010; WO 2009090376 A1 20090723
DOCDB simple family (application)
GB 0800582 A 20080114; EP 09701751 A 20090113; ES 09701751 T 20090113; GB 2009000088 W 20090113