EP 1070849 A3 20020717 - Axial flow fan
Title (en)
Axial flow fan
Title (de)
Axiallüfter
Title (fr)
Ventilateur axial
Publication
Application
Priority
- KR 19990029802 A 19990722
- KR 19990029803 A 19990722
Abstract (en)
[origin: EP1070849A2] An axial flow fan for refrigerators is disclosed. In the axial flow fan of this invention, a hub(51) is mounted to the rotating shaft of a drive motor, with a plurality of blades(55) regularly fixed around the hub(51). A variety of designing factors of the blades, such as the number of blades, hub ratio, sweep angle, pitch angle and maximum camber ratio, are optimally designed to allow a smooth flow of cool air agreeable with both the large pressure loss and complex flow passage of refrigerators while accomplishing a reduction in air flow noise of the refrigerators. A vortex prevention means is provided on the concave back surface of the annular rim formed of the shroud for preventing discharged air from forming a vortex stream in back of the fan. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/32 (2006.01); F04D 29/38 (2006.01); F04D 29/54 (2006.01); F04D 29/66 (2006.01); F25D 17/06 (2006.01)
CPC (source: EP)
F04D 29/325 (2013.01); F04D 29/384 (2013.01); F04D 29/547 (2013.01); F04D 29/666 (2013.01); F25D 2317/0681 (2013.01)
Citation (search report)
- [A] EP 0913584 A1 19990506 - SIEMENS CANADA LTD [CA]
- [A] DE 19631093 A1 19980205 - DEUTSCHE FORSCH LUFT RAUMFAHRT [DE]
- [A] EP 0583091 A2 19940216 - VALEO THERMIQUE MOTEUR SA [FR]
- [A] EP 0174487 A1 19860319 - SIEMENS AG [DE]
- [A] DE 8525674 U1 19851121
- [A] US 4566852 A 19860128 - HAUSER KURT [DE]
- [A] EP 0536662 A1 19930414 - SIEMENS AUTOMOTIVE LTD [CA]
- [A] EP 0557239 A2 19930825 - CARRIER CORP [US]
- [A] US 5326225 A 19940705 - GALLIVAN WILLIAM P [CA], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1070849 A2 20010124; EP 1070849 A3 20020717; EP 1070849 B1 20100324; DE 60044049 D1 20100506; JP 2001059499 A 20010306; JP 3469857 B2 20031125
DOCDB simple family (application)
EP 00114849 A 20000711; DE 60044049 T 20000711; JP 2000218758 A 20000714