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EP 2 971 763 A1

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(43) Date of publication: 20.01.2016 Bulletin 2016/03 (21) Application number: 14715742.4 (22) Date of filing: 06.03.2014

(51) International Patent Classification (IPC):  F04B 27/00(2006.01) F04B 27/04(2006.01) F16K 3/08(2006.01) F04B 27/02(2006.01) F04B 39/10(2006.01) (86) International application number: PCT/US2014/021376 (87) International publication number: WO 2014/149887 (25.09.2014 Gazette 2014/39)

(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: 15.03.2013 US 201361801688 P 26.02.2014 US 201414191187 (71) Applicant: GE Oil & Gas Compression Systems, LLC Houston, TX 77041 (US)	(72) Inventors: LEGG, David W. Houston, Texas 77027 (US) NOBLE, Carl Houston, Texas 77027 (US) (74) Representative: Williams, Andrew Richard et al GE International Inc. GPO-Europe The Ark 201 Talgarth Road Hammersmith London W6 8BJ London W6 8BJ (GB)