(19)

(11)

EP 2 215 366 A1

(12)

(43) Date of publication: 11.08.2010 Bulletin 2010/32 (21) Application number: 08845135.6 (22) Date of filing: 22.10.2008

(51) International Patent Classification (IPC):  F04D 29/44(2006.01) F04D 29/54(2006.01) (86) International application number: PCT/US2008/080730 (87) International publication number: WO 2009/058629 (07.05.2009 Gazette 2009/19)

(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 (30) Priority: 31.10.2007 US 931331 (71) Applicant: DRS Power Technology, Inc. Fitchburg, MA 01420 (US)	(72) Inventors: ANDERSON, Rodger, O. Scotia NY 12302 (US) WILLETT, Fred, T. Burnt Hills NY 12027 (US) (74) Representative: Pierrou, Mattias  Awapatent AB P.O. Box 45 086 104 30 Stockholm 104 30 Stockholm (SE)