(19)
(11)
EP 2 069 194 A1
(12)
(43)
Date of publication:
17.06.2009
Bulletin 2009/25
(21)
Application number:
07825077.6
(22)
Date of filing:
10.09.2007
(51)
International Patent Classification (IPC):
B63H
5/10
(2006.01)
B63H
3/02
(2006.01)
(86)
International application number:
PCT/IB2007/002586
(87)
International publication number:
WO 2008/032167
(
20.03.2008
Gazette 2008/12)
(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
(30)
Priority:
15.09.2006
IT MI20061759
(71)
Applicant:
Calzoni S.r.l.
40012 Calderara di Reno BO (IT)
(72)
Inventor:
GHIGNONE, Stefano
40012 Calderara di Reno (BO) (IT)
(74)
Representative:
Lanzoni, Luciano
Via Goito 18
40126 Bologna
40126 Bologna (IT)
(54)
PROPULSION UNIT COMPRISING TWO COAXIAL CONTRA-ROTATING PROPELLERS