(19)
(11) EP 1 840 025 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.06.2014 Bulletin 2014/23

(43) Date of publication A2:
03.10.2007 Bulletin 2007/40

(21) Application number: 07105268.2

(22) Date of filing: 29.03.2007
(51) International Patent Classification (IPC): 
B63H 1/16(2006.01)
 B63H 21/17(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 MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 31.03.2006 IT MI20060632

(71) Applicant: Goriziane S.p.A.
34070 Villesse GO (IT)

(72) Inventor:
  • Novelli, Flavio
    34077 Ronchi dei Legionari (Gorizia) (IT)

(74) Representative: Bonatto, Marco et al
Barzanò & Zanardo Milano S.p.A. Via Borgonuovo, 10
20121 Milano
20121 Milano (IT)

   


(54) Electrical traction system


(57) Electrical traction system having a propeller group formed from an inner hollow cylinder (21) inside which at least one propeller (22) is fixedly connected coaxial to said cylinder, so that the propeller itself and the cylinder can rotate together around said axis. The system comprises a rotor of an electric motor inside which such an inner cylinder is coaxially arranged and a cylindrical stator (63) is fitted onto said rotor, in such a way making an electric motor in which the rotor is hollow and cylindrical and a propeller is arranged inside it that rotates with said rotor.







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