(19)

(11)

EP 3 380 734 A1

(12)

(43) Date of publication: 03.10.2018 Bulletin 2018/40 (21) Application number: 16797612.5 (22) Date of filing: 10.11.2016

(51) International Patent Classification (IPC):  F04C 18/02(2006.01) F04C 29/04(2006.01) F04C 25/02(2006.01) (86) International application number: PCT/GB2016/053528 (87) International publication number: WO 2017/089745 (01.06.2017 Gazette 2017/22)

(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 MD (30) Priority: 26.11.2015 GB 201520878 (71) Applicant: Edwards Limited Burgess Hill West Sussex RH15 9TW (GB)	(72) Inventors: BAHRAMI, Mo Crawley Sussex RH10 1QL (GB) DESIRON, Andries Burgess Hill Sussex RH15 9TW (GB) (74) Representative: Norton, Ian Andrew  Edwards Limited Innovation Drive Burgess Hill West Sussex RH15 9TW West Sussex RH15 9TW (GB)