(19)

(11)

EP 3 787 443 A1

(12)

(43) Date of publication: 10.03.2021 Bulletin 2021/10 (21) Application number: 19723185.5 (22) Date of filing: 03.05.2019

(51) International Patent Classification (IPC):  A47F 3/04(2006.01) F25D 23/02(2006.01) (86) International application number: PCT/GB2019/051230 (87) International publication number: WO 2019/211619 (07.11.2019 Gazette 2019/45)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.05.2018 GB 201807418 (71) Applicant: Aerofoil Energy Limited Cheshire SK10 5JB (GB)	(72) Inventor: MCANDREW, Paul Cheshire SK12 1SR (GB) (74) Representative: Cooley (UK) LLP  Dashwood 69 Old Broad Street London EC2M 1QS London EC2M 1QS (GB)