(19)

(11)

EP 2 619 458 A2

(12)

(88) Date of publication A3: 20.12.2012 (43) Date of publication: 31.07.2013 Bulletin 2013/31 (21) Application number: 11754774.5 (22) Date of filing: 09.08.2011

(51) International Patent Classification (IPC):  F04B 49/06(2006.01) (86) International application number: PCT/US2011/046996 (87) International publication number: WO 2012/039845 (29.03.2012 Gazette 2012/13)

(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 (30) Priority: 24.09.2010 US 889612 (71) Applicant: Robert Bosch GmbH 70442 Stuttgart (DE)	(72) Inventor: PATIENT, Daniel Novi MI 48375 (US) (74) Representative: Dreiss  Patentanwälte Gerokstrasse 1 70188 Stuttgart 70188 Stuttgart (DE)