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(11)

EP 2 142 777 A1

(12)

(43) Date of publication: 13.01.2010 Bulletin 2010/02 (21) Application number: 07761677.9 (22) Date of filing: 01.05.2007

(51) International Patent Classification (IPC):  F02C 1/00(2006.01) F02G 3/00(2006.01) (86) International application number: PCT/US2007/067928 (87) International publication number: WO 2008/133695 (06.11.2008 Gazette 2008/45)

(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: Ingersoll-Rand Energy Systems Portsmouth, NH 03801 (US)	(72) Inventors: ARMSTRONG, Jeffrey, P. Exeter, NH 03833 (US) STAMENOV, Toni, H. Portsmouth, NH 03801 (US) (74) Representative: Holmes, Matthew Peter et al Marks & Clerk LLP Sussex House 83-85 Mosley Street Manchester M2 3LG 83-85 Mosley Street Manchester M2 3LG (GB)