(19)
(11) EP 1 726 832 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.05.2011 Bulletin 2011/19

(43) Date of publication A2:
29.11.2006 Bulletin 2006/48

(21) Application number: 06010115.1

(22) Date of filing: 16.05.2006
(51) International Patent Classification (IPC): 
F04D 29/30(2006.01)
 F04D 29/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 17.05.2005 KR 20050041005

(71) Applicant: LG Electronics Inc.
Youngdungpo-gu Seoul (KR)

(72) Inventors:
  • Moon, Ki Young
    Kangdong-gu Seoul (KR)
  • Hong, Ki Su
    Anyang-si Kyunggi-do (KR)
  • Kim, Jung Hoon
    Guro-gu, Seoul 152-848 (KR)

(74) Representative: Vossius & Partner 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) Turbo fan and blade thereof


(57) A turbo fan is provided. The turbo fan includes a plurality of blades (4), a shroud (2), and a circular hub (3). The shroud (2) is provided at ends of the blades (4) to guide a flow of suctioned air. The circular hub (3) guides a discharging of the suctioned air. The blade (4) includes a leading edge (5) formed wider than a trailing edge (7) thereof.







Search report