(19)

(11)

EP 2 712 408 A2

(12)

(88) Date of publication A3: 18.04.2013 (43) Date of publication: 02.04.2014 Bulletin 2014/14 (21) Application number: 12724749.2 (22) Date of filing: 02.05.2012

(51) International Patent Classification (IPC):  F04B 39/00(2006.01) F04B 53/16(2006.01) F04B 39/08(2006.01) F16J 15/16(2006.01) F04B 39/06(2006.01) F04B 53/08(2006.01) F04B 53/14(2006.01) (86) International application number: PCT/NL2012/050305 (87) International publication number: WO 2012/150862 (08.11.2012 Gazette 2012/45)

(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: 04.05.2011 NL 2006718 (71) Applicant: Howden Thomassen Compressors B.V. 6991 GS Rheden (NL)	(72) Inventors: KOOP, Laurentius Gerardus Maria NL-6931 CN Westervoort (NL) DUINEVELD, Petrus Nicolaas NL-6986 BW Angerlo (NL) ARENDS, Teun Petrus Johannes NL-6681 DT Bemmel (NL) (74) Representative: Hendry, Niall James  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)