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EP 4 581 307 A1

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(43) Date of publication: 09.07.2025 Bulletin 2025/28 (21) Application number: 22957431.4 (22) Date of filing: 01.09.2022

(51) International Patent Classification (IPC):  F24F 1/48(2011.01) F24F 1/56(2011.01) F24F 1/38(2011.01) (52) Cooperative Patent Classification (CPC): F24F 1/38; F24F 1/56; F24F 1/0018 (86) International application number: PCT/JP2022/032931 (87) International publication number: WO 2024/047836 (07.03.2024 Gazette 2024/10)

(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 (71) Applicant: Hitachi-Johnson Controls Air Conditioning, Inc. Tokyo 105-0022 (JP)	(72) Inventors: KUMAR, Manish Mehsana, Gujarat 382727 (IN) SHRIVASTAVA, Vinay Mehsana, Gujarat 382727 (IN) SHAH, Rohan Mehsana, Gujarat 382727 (IN) IWASE, Taku Tokyo 105-0022 (JP) OBARA, Hideshi Tokyo 105-0022 (JP) (74) Representative: MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB  Paul-Heyse-Straße 29 80336 München 80336 München (DE)