(19)

(11)

EP 3 497 378 A1

(12)

(43) Date of publication: 19.06.2019 Bulletin 2019/25 (21) Application number: 16913005.1 (22) Date of filing: 15.08.2016

(51) International Patent Classification (IPC):  F24F 11/00(2018.01) (86) International application number: PCT/CN2016/095284 (87) International publication number: WO 2018/032241 (22.02.2018 Gazette 2018/08)

(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 (71) Applicant: Liricco Technologies Ltd. New Territories, Hong Kong (CN)	(72) Inventors: NG, Mei Toronto, Ontario (CA) LI, Ka Chun New Territories Hong Kong (CN) (74) Representative: inCompass IP Europe Limited  51 Paddock Mead Harlow, Essex CM18 7RR Harlow, Essex CM18 7RR (GB)