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(11)

EP 4 217 597 A1

(12)

(43) Date of publication: 02.08.2023 Bulletin 2023/31 (21) Application number: 21777638.4 (22) Date of filing: 16.09.2021

(51) International Patent Classification (IPC):  F02C 7/224(2006.01) F02C 7/26(2006.01) F02C 3/22(2006.01) F01D 19/00(2006.01) (52) Cooperative Patent Classification (CPC): F02C 7/224; F02C 3/22; F02C 7/26; F05D 2270/303; F05D 2260/605; F01D 19/02 (86) International application number: PCT/EP2021/025353 (87) International publication number: WO 2022/063429 (31.03.2022 Gazette 2022/13)

(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: 28.09.2020 IT 202000022777 (71) Applicant: Nuovo Pignone Tecnologie S.r.l. 50127 Florence (IT)	(72) Inventors: PAMPALONI, Giacomo 50127 Florence (IT) ROSSIN, Stefano 50127 Florence (IT) BECCALUVA, Ricardo 50127 Florence (IT) QUARTIERI, Eugenio 50127 Florence (IT) (74) Representative: Illingworth-Law, William Illingworth  Baker Hughes 245 Hammersmith Chalk Hill Road London W6 8DW London W6 8DW (GB)