(19)

(11)

EP 3 830 923 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 19748900.8 (22) Date of filing: 24.07.2019

(51) International Patent Classification (IPC):  H02J 3/38(2006.01) F03D 3/04(2006.01) F03D 1/04(2006.01) H02J 3/32(2006.01) F03D 3/00(2006.01) F03D 7/02(2006.01) (86) International application number: PCT/GB2019/052068 (87) International publication number: WO 2020/021256 (30.01.2020 Gazette 2020/05)

(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: 27.07.2018 GB 201812320 12.02.2019 GB 201901934 (71) Applicant: Cross-Flow Energy Company Limited Port Talbot SA12 7AX (GB)	(72) Inventor: ELLIS, Robert Narbeth SA67 7DY (GB) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)