(19)

(11)

EP 2 649 704 A2

(12)

(88) Date of publication A3: 04.07.2013 (43) Date of publication: 16.10.2013 Bulletin 2013/42 (21) Application number: 11799855.9 (22) Date of filing: 29.11.2011

(51) International Patent Classification (IPC):  H02K 1/14(2006.01) H02K 21/14(2006.01) H02K 47/20(2006.01) H02K 11/00(2006.01) (86) International application number: PCT/IB2011/055363 (87) International publication number: WO 2012/077016 (14.06.2012 Gazette 2012/24)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 06.12.2010 IT RM20100634 (71) Applicant: Electrogen Research & Development S.r.L. 00153 Roma (IT)	(72) Inventor: CHIAPPINI, Goffredo I-00153 Roma (IT) (74) Representative: Fiammenghi, Eva et al Fiammenghi - Fiammenghi Via Quattro Fontane, 31 00184 Roma 00184 Roma (IT)