(19)

(11)

EP 2 989 299 A1

(12)

(43) Date of publication: 02.03.2016 Bulletin 2016/09 (21) Application number: 14787796.3 (22) Date of filing: 21.04.2014

(51) International Patent Classification (IPC):  F01D 25/16(2006.01) F02C 7/06(2006.01) F04D 29/06(2006.01) F01D 25/18(2006.01) F04D 29/046(2006.01) (86) International application number: PCT/US2014/034843 (87) International publication number: WO 2014/176178 (30.10.2014 Gazette 2014/44)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 22.04.2013 US 201361814708 P (71) Applicant: United Technologies Corporation Hartford, CT 06101 (US)	(72) Inventors: OLSEN, David, R. Wellington, Florida 33414 (US) MINER, Frederic, G. Jupiter, Florida 33458 (US) DOLMAN, Paul, H. Simsbury, Connecticut 06070 (US) (74) Representative: Hull, James Edward  Dehns St. Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)