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(11)

EP 4 298 327 A1

(12)

(43) Date of publication: 03.01.2024 Bulletin 2024/01 (21) Application number: 22707845.8 (22) Date of filing: 09.02.2022

(51) International Patent Classification (IPC):  F02B 43/10(2006.01) F01N 5/04(2006.01) F02B 47/06(2006.01) F02B 47/10(2006.01) F02B 43/00(2006.01) (52) Cooperative Patent Classification (CPC): F02B 43/10; F02B 47/10; F02B 47/06; F02B 43/00; F01N 5/02; F01N 3/0205; F01N 3/005 (86) International application number: PCT/IB2022/051151 (87) International publication number: WO 2022/180471 (01.09.2022 Gazette 2022/35)

(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: 24.02.2021 IT 202100004295 (71) Applicant: Turboden S.p.A. 25124 Brescia (IT)	(72) Inventors: GAIA, Mario 25124 Brescia (IT) BINI, Roberto 25124 Brescia (IT) (74) Representative: Bruni, Giovanni  Laforgia, Bruni & Partners Corso Duca degli Abruzzi, 2 10128 Torino 10128 Torino (IT)