(19)

(11)

EP 3 724 510 A1

(12)

(43) Date of publication: 21.10.2020 Bulletin 2020/43 (21) Application number: 18819358.5 (22) Date of filing: 10.12.2018

(51) International Patent Classification (IPC):  F04D 19/04(2006.01) F04D 27/02(2006.01) F04D 25/06(2006.01) (86) International application number: PCT/GB2018/053572 (87) International publication number: WO 2019/116012 (20.06.2019 Gazette 2019/25)

(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: KH MA MD TN (30) Priority: 12.12.2017 GB 201720705 (71) Applicant: Edwards Limited Burgess Hill, Sussex RH15 9TW (GB)	(72) Inventors: HAYLOCK, James Alexander Eastbourne, Sussex BN22 9BA (GB) BAILEY, Christopher Mark Burgess Hill, Sussex RH15 9TW (GB) SCHOFIELD, Nigel Paul 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)