(19)

(11)

EP 1 824 720 A2

(12)

(88) Date of publication A3: 31.05.2007 (43) Date of publication: 29.08.2007 Bulletin 2007/35 (21) Application number: 05853731.7 (22) Date of filing: 12.12.2005

(51) International Patent Classification (IPC):  B61K 9/10(2006.01) (86) International application number: PCT/US2005/044884 (87) International publication number: WO 2006/065730 (22.06.2006 Gazette 2006/25)

(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 Designated Extension States: AL BA HR MK YU (30) Priority: 13.12.2004 US 635003 P (71) Applicant: Bombardier Transportation GmbH 13627 Berlin (DE)	(72) Inventor: KARG, Kenneth, A. Belle Vernon, PA 15012 (US) (74) Representative: Callon de Lamarck, Jean-Robert et al Cabinet Régimbeau 20, rue de Chazelles 75847 Paris cedex 17 75847 Paris cedex 17 (FR)