Global Patent Index - EP 1070849 A2

EP 1070849 A2 20010124 - Axial flow fan

Title (en)

Axial flow fan

Title (de)

Axiallüfter

Title (fr)

Ventilateur axial

Publication

EP 1070849 A2 20010124 (EN)

Application

EP 00114849 A 20000711

Priority

  • KR 19990029802 A 19990722
  • KR 19990029803 A 19990722

Abstract (en)

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

F04D 29/32; F04D 29/38; F04D 29/66

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 (applicant)

Designated contracting state (EPC)

DE GB IT

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