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(11)

EP 3 303 842 A1

(12)

(43) Date of publication: 11.04.2018 Bulletin 2018/15 (21) Application number: 15726998.6 (22) Date of filing: 08.06.2015

(51) International Patent Classification (IPC):  F04C 2/332(2006.01) F04C 14/22(2006.01) (86) International application number: PCT/EP2015/062737 (87) International publication number: WO 2016/198091 (15.12.2016 Gazette 2016/50)

(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 Designated Validation States: MA (71) Applicant: Pierburg Pump Technology GmbH 41460 Neuss (DE)	(72) Inventor: PACHETTI, Carlo 56121 Cascina (Pisa) (IT) (74) Representative: Patentanwälte ter Smitten Eberlein-Van Hoof Rütten Partnerschaftsgesellschaft mbB  Burgunderstraße 29 40549 Düsseldorf 40549 Düsseldorf (DE)