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(11)

EP 2 809 888 A1

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(43) Date of publication: 10.12.2014 Bulletin 2014/50 (21) Application number: 13743906.3 (22) Date of filing: 18.01.2013

(51) International Patent Classification (IPC):  F01D 15/12(2006.01) F01D 25/28(2006.01) F03D 11/04(2006.01) F03B 11/00(2006.01) F01D 25/26(2006.01) F03D 11/02(2006.01) F03D 5/00(2006.01) F04D 29/60(2006.01) (86) International application number: PCT/US2013/022032 (87) International publication number: WO 2013/116009 (08.08.2013 Gazette 2013/32)

(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: 31.01.2012 US 201261593230 P 02.02.2012 US 201213364798 (71) Applicant: United Technologies Corporation Hartford, CT 06101 (US)	(72) Inventors: SUCIU, Gabriel, L. Glastonbury, CT 06033 (US) MERRY, Brian D. Andover, Connecticut 06232 (US) HASEL, Karl L. Manchester, Connecticut 06040 (US) (74) Representative: Leckey, David Herbert  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)