(19)

(11)

EP 2 795 113 A2

(12)

(88) Date of publication A3: 31.10.2013 (43) Date of publication: 29.10.2014 Bulletin 2014/44 (21) Application number: 12759189.9 (22) Date of filing: 15.05.2012

(51) International Patent Classification (IPC):  F03D 9/00(2006.01) (86) International application number: PCT/IB2012/052438 (87) International publication number: WO 2013/093654 (27.06.2013 Gazette 2013/26)

(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 (30) Priority: 19.12.2011 IT PI20110142 (71) Applicant: Bi.Nav. Research and Development S.R.L. 19125 La Spezia (SP) (IT)	(72) Inventors: BIANCO, Vincenzo I-19136 La Spezia (SP) (IT) RAVAGNAN, Giampietro I-00164 Roma (IT)