(19)

(11)

EP 1 812 711 A1

(12)

(43) Date of publication: 01.08.2007 Bulletin 2007/31 (21) Application number: 05803886.0 (22) Date of filing: 18.11.2005

(51) International Patent Classification (IPC):  F04C 2/344(2006.01) (86) International application number: PCT/IB2005/003455 (87) International publication number: WO 2006/054161 (26.05.2006 Gazette 2006/21)

(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 NL PL PT RO SE SI SK TR (30) Priority: 19.11.2004 IT BO20040715 (71) Applicant: H.P.E. High Performance Engineering S.r.l. 41100 MODENA (IT)	(72) Inventors: ASCARI, Ennio I-41043 Formigine (IT) CAMPANI, Lorenzo I-41043 Formigine (IT) (74) Representative: Castiglia, Paolo et al Porta, Checcacci & Associati S.p.A. Via Trebbia, 20 20135 Milano 20135 Milano (IT)