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EP 2 751 393 A1

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(43) Date of publication: 09.07.2014 Bulletin 2014/28 (21) Application number: 11754860.2 (22) Date of filing: 30.08.2011

(51) International Patent Classification (IPC):  F01C 21/10(2006.01) F04C 14/22(2006.01) F04C 2/344(2006.01) (86) International application number: PCT/EP2011/064916 (87) International publication number: WO 2013/029662 (07.03.2013 Gazette 2013/10)

(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: GASPERINI, Matteo I-56035 Lavaiano di Lari Pisa (IT) TESTA, Alessandro I-55049 Viareggio di Lucca (IT) ARMENIO, Giacomo I-57128 Livorno (IT) SQUARCINI, Raffaele I-57125 Livorno (IT) NOVI, Nicola I-56100 Pisa (IT) (74) Representative: Patentanwälte ter Smitten Eberlein Rütten Partnerschaftsgesellschaft  Burgunderstr. 29 40549 Düsseldorf 40549 Düsseldorf (DE)