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EP 3 732 351 A1

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(43) Date of publication: 04.11.2020 Bulletin 2020/45 (21) Application number: 18839733.5 (22) Date of filing: 28.12.2018

(51) International Patent Classification (IPC):  F01C 1/344(2006.01) F01C 21/06(2006.01) F25B 1/00(2006.01) F04C 29/00(2006.01) F01C 11/00(2006.01) F04C 23/02(2006.01) F25B 27/00(2006.01) (86) International application number: PCT/IB2018/060703 (87) International publication number: WO 2019/130268 (04.07.2019 Gazette 2019/27)

(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: 29.12.2017 IT 201700151144 (71) Applicant: ING. ENEA MATTEI S.p.A. 20090 Vimodrone, Milano (IT)	(72) Inventors: CONTALDI, Giulio 20090 Segrate (MI) (IT) MURGIA, Stefano 20090 Vimodrone (MI) (IT) (74) Representative: Franzolin, Luigi et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)