EP 1616101 A1 20060118 - FAN
Title (en)
FAN
Title (de)
L FTER
Title (fr)
VENTILATEUR
Publication
Application
Priority
- EP 2004003916 W 20040414
- DE 20306455 U 20030419
Abstract (en)
[origin: US2006210397A1] A fan has an air conveying conduit ( 16 ) and a fan wheel ( 22 ) arranged therein, which wheel is rotatable about a central axis ( 25 ) and is formed with a central hub ( 20; 120 ) having an outer periphery ( 27 ) on which fan blades ( 26 ) are mounted. These extend with their radially outer rims ( 40 ) as far as a surface ( 17 ) that is substantially coaxial with the central axis ( 25 ) and delimits the air conveying conduit ( 16 ) externally. The blades ( 26 ) have a profile similar to an airfoil profile. A flow element ( 42 ) is provided along the radial outer edge ( 40 ) of a fan blade and serves as an obstacle to a compensating flow proceeding around that radial outer edge ( 40 ) from the delivery side to the intake side, and likewise has, in cross section, an airfoil profile. Adjacent the front edge ( 28 ) and rear edge ( 36 ) of a blade ( 26 ), it has substantially the same outline as the adjacent part of the associated blade ( 26 ), and in a middle region ( 48 ) between the front and back edge is wider, by an approximately constant amount, than the adjacent part of the blade ( 26 ).
IPC 1-7
IPC 8 full level
F04D 29/16 (2006.01); F04D 29/38 (2006.01)
CPC (source: EP US)
F04D 29/164 (2013.01 - EP US); F04D 29/384 (2013.01 - EP US); F05D 2240/307 (2013.01 - EP US)
Citation (search report)
See references of WO 2004094835A1
Citation (third parties)
Third party :
- JP H05141394 A 19930608 - MATSUSHITA SEIKO KK
- JP H05141394 K1
- DE 2405050 A1 19750807 - MTU MUENCHEN GMBH [DE]
- DE 3217085 A1 19831110 - KORFMANN GMBH MASCHF [DE]
- ANONYMOUS: "Wiki: Profil (Strömungslehre)", WAPEDIA, pages 1 - 3, XP003021193, Retrieved from the Internet <URL:http://wapedia.mobi/de/profil>
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2006210397 A1 20060921; US 7438522 B2 20081021; AT E502217 T1 20110415; DE 102004017727 A1 20041104; DE 202004005548 U1 20040617; DE 502004012310 D1 20110428; EP 1616101 A1 20060118; EP 1616101 B1 20110316; EP 1616101 B2 20160615; WO 2004094835 A1 20041104
DOCDB simple family (application)
US 55349605 A 20051013; AT 04727247 T 20040414; DE 102004017727 A 20040410; DE 202004005548 U 20040410; DE 502004012310 T 20040414; EP 04727247 A 20040414; EP 2004003916 W 20040414