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(11)

EP 2 785 994 A1

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(43) Date of publication: 08.10.2014 Bulletin 2014/41 (21) Application number: 11788525.1 (22) Date of filing: 30.11.2011

(51) International Patent Classification (IPC):  F01P 7/12(2006.01) F04D 13/02(2006.01) F16D 27/115(2006.01) F01P 5/12(2006.01) (86) International application number: PCT/EP2011/071379 (87) International publication number: WO 2013/079103 (06.06.2013 Gazette 2013/23)

(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 (71) Applicant: Pierburg Pump Technology GmbH 41460 Neuss (DE)	(72) Inventors: DURAND, Jean-Michel F-57070 Metz (FR) SCHNEIDER, Jean-Christophe F-57970 Valmestroff (FR) (74) Representative: Patentanwälte ter Smitten Eberlein Rütten Partnerschaftsgesellschaft  Burgunderstraße 29 40549 Düsseldorf 40549 Düsseldorf (DE)