(19)
(11) EP 1 366 299 A1

(12)

(43) Date of publication:
03.12.2003 Bulletin 2003/49

(21) Application number: 02703644.1

(22) Date of filing: 05.03.2002
(51) International Patent Classification (IPC)7: F04D 25/08, F04D 29/52
(86) International application number:
PCT/FI0200/170
(87) International publication number:
WO 0207/0902 (12.09.2002 Gazette 2002/37)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 05.03.2001 FI 20010432

(71) Applicant: Fläkt Woods AB
55184 Jönköping (SE)

(72) Inventors:
  • KOHONEN, Reijo
    FIN-02200 Espoo (FI)
  • HYVÄRINEN, Juhani
    FIN-02230 Espoo (FI)
  • WAINIO, Sami
    FIN-00700 Helsinki (FI)
  • IKONEN, Ilkka, T.
    FIN-65230 Vaasa (FI)
  • FORSMAN, Kimmo
    FIN-65320 Vaasa (FI)
  • PÖYHÖNEN, Matti
    FIN-65610 Mustasaari (FI)
  • RINTA-VALKAMA, Jorma
    FIN-65350 Vaasa (FI)

(74) Representative: Järveläinen, Pertti Tauno Juhani et al
Oy Heinänen Ab,Annankatu 31-33 C
00100 Helsinki
00100 Helsinki (FI)

   


(54) AIR IMPELLER AND A HOUSING FOR SUCH AN IMPELLER