(19)

(11)

EP 1 954 947 A1

(12)

(43) Date of publication: 13.08.2008 Bulletin 2008/33 (21) Application number: 06828079.1 (22) Date of filing: 28.11.2006

(51) International Patent Classification (IPC):  F04C 29/04(2006.01) F04C 18/16(2006.01) F04C 29/00(2006.01) (86) International application number: PCT/BE2006/000126 (87) International publication number: WO 2007/079551 (19.07.2007 Gazette 2007/29)

(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: 29.11.2005 BE 200500580 (71) Applicant: ATLAS COPCO AIRPOWER N.V. 2610 Wilrijk (BE)	(72) Inventor: HEREMANS, Jan Paul Herman B-2040 ANTWERPEN (BE) (74) Representative: Donné, Eddy  M.F.J.Bockstael Arenbergstraat 13 2000 Anvers 2000 Anvers (BE)