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(11)

EP 3 271 585 A1

(12)

(43) Date of publication: 24.01.2018 Bulletin 2018/04 (21) Application number: 15714275.3 (22) Date of filing: 30.01.2015

(51) International Patent Classification (IPC):  F04C 9/00(2006.01) F01C 9/00(2006.01) (86) International application number: PCT/IB2015/000095 (87) International publication number: WO 2016/120655 (04.08.2016 Gazette 2016/31)

(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 (71) Applicant: PUMPSYSTEMS GMBH 96106 Ebern (DE)	(72) Inventors: PECHTOLD, Martin 96472 Roedental (DE) HOFMANN, Ulrich 96540 Coburg (DE)