(19)

(11)

EP 4 540 528 A1

(12)

(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23741131.9 (22) Date of filing: 20.06.2023

(51) International Patent Classification (IPC):  F04D 25/08(2006.01) F04D 29/58(2006.01) F04D 29/42(2006.01) F04D 29/60(2006.01) (52) Cooperative Patent Classification (CPC): F04D 25/082; F04D 29/4206; F04D 29/4226; F04D 29/5806; F04D 29/503; F04D 29/601 (86) International application number: PCT/IB2023/056395 (87) International publication number: WO 2023/248143 (28.12.2023 Gazette 2023/52)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 20.06.2022 CN 202221546119 U (71) Applicant: Intex Marketing Ltd. Road Town, Tortola VG1110 (VG)	(72) Inventors: HUANG, Zhi Xiong Xiamen, Fujian 361022 (CN) TAN, Ai Ming Xiamen, Fujian 361022 (CN) (74) Representative: Reddie & Grose LLP  The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)