(19)

(11)

EP 2 252 798 A1

(12)

(43) Date of publication: 24.11.2010 Bulletin 2010/47 (21) Application number: 08872443.0 (22) Date of filing: 18.12.2008

(51) International Patent Classification (IPC):  F04D 29/28(2006.01) F04D 29/30(2006.01) (86) International application number: PCT/GB2008/004190 (87) International publication number: WO 2009/101376 (20.08.2009 Gazette 2009/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 14.02.2008 EP 08002766 (71) Applicant: Napier Turbochargers Limited Lincoln, Lincolnshire LN5 7FD (GB)	(72) Inventors: HEYES, Francis Lincoln Lincolnshire LN2 1RG (GB) ROACH, Paul Lincoln Lincolnshire LN2 4RW (GB) BROWN, Ian Nottingham Nottinghamshire NG9 1BA (GB) NGAO, Geoffrey Lincoln Lincolnshire LN2 4ZD (GB) (74) Representative: Gill, Stephen Charles et al Mewburn Ellis LLP 33 Gutter Lane London EC2V 8AS London EC2V 8AS (GB)