(19)

(11)

EP 1 581 770 A2

(12)

(88) Date of publication A3: 12.08.2004 (43) Date of publication: 05.10.2005 Bulletin 2005/40 (21) Application number: 03786149.9 (22) Date of filing: 22.12.2003

(51) International Patent Classification (IPC)7: F23R 3/28 (86) International application number: PCT/GB2003/005624 (87) International publication number: WO 2004/057236 (08.07.2004 Gazette 2004/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 23.12.2002 GB 0230070 (71) Applicant: Bowman Power Systems Limited Hampshire SO14 5QY (GB)	(72) Inventor: NORSTER, Eric,Norster Combustion Research Newark,Nottinghamshire NG23 7EB (GB) (74) Representative: Miller, James Lionel Woolverton et al Kilburn & Strode, 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)