(19)

(11)

EP 2 331 815 A1

(12)

(43) Date of publication: 15.06.2011 Bulletin 2011/24 (21) Application number: 08821845.8 (22) Date of filing: 10.09.2008

(51) International Patent Classification (IPC):  F03G 7/06(2006.01) F25B 15/00(2006.01) F01K 25/08(2006.01) (86) International application number: PCT/US2008/075819 (87) International publication number: WO 2010/030271 (18.03.2010 Gazette 2010/11)

(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 (71) Applicant: United Technologies Corporation Hartford, CT 06101 (US)	(72) Inventors: MATTESON, Peter, S. South Windsor CT 06074 (US) ARNER, Michael, D. Manchester CT 06040 (US) (74) Representative: Leckey, David Herbert  Dehns 10 Salisbury Square London Greater London EC4Y 8JD London Greater London EC4Y 8JD (GB)