(19)

(11)

EP 2 193 258 A2

(12)

(88) Date of publication A3: 03.12.2009 (43) Date of publication: 09.06.2010 Bulletin 2010/23 (21) Application number: 07804235.5 (22) Date of filing: 11.09.2007

(51) International Patent Classification (IPC):  F01K 23/06(2006.01) F22B 1/00(2006.01) F22G 1/12(2006.01) F01K 3/18(2006.01) (86) International application number: PCT/GB2007/003440 (87) International publication number: WO 2009/034285 (19.03.2009 Gazette 2009/12)

(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 (71) Applicant: E.On UK PLC Westwood Way Westwood Business Park Coventry CV4 8LG (GB)	(72) Inventors: PERISELNERIS, Jonathan, Nerio Coventry CV4 8LG (GB) READ, Andy, John Coventry CV4 8LG (GB) ATHERTON, David, Alan Coventry CV4 8LG (GB) (74) Representative: Harland, Linda Jane et al Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)