(19)

(11)

EP 2 054 623 A2

(12)

(88) Date of publication A3: 24.04.2008 (43) Date of publication: 06.05.2009 Bulletin 2009/19 (21) Application number: 07805367.5 (22) Date of filing: 10.08.2007

(51) International Patent Classification (IPC):  F04B 19/00(2006.01) F04D 33/00(2006.01) (86) International application number: PCT/IB2007/053176 (87) International publication number: WO 2008/020374 (21.02.2008 Gazette 2008/08)

(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 MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 14.08.2006 EP 06118872 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: JOHNSON, Mark T. 5656 AE Eindhoven (NL) DEN TOONDER, Jacob M.J. 5656 AE Eindhoven (NL) GILLIES, Murray F. 5656 AE Eindhoven (NL) FRENCH, Ian 5656 AE Eindhoven (NL) PONJEE, Marc W.G. 5656 AE Eindhoven (NL) (74) Representative: Van Velzen, Maaike Mathilde et al Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)