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(11)

EP 3 956 623 A1

(12)

(43) Date of publication: 23.02.2022 Bulletin 2022/08 (21) Application number: 20791300.5 (22) Date of filing: 17.04.2020

(51) International Patent Classification (IPC):  F28F 3/04(2006.01) F28B 1/06(2006.01) F24F 13/08(2006.01) F28F 3/02(2006.01) (52) Cooperative Patent Classification (CPC): F28F 1/30; F28F 1/38; F28D 1/0535; F28B 1/06 (86) International application number: PCT/US2020/028659 (87) International publication number: WO 2020/214902 (22.10.2020 Gazette 2020/43)

(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: 18.04.2019 US 201962835706 P 16.04.2020 US 202016850673 (71) Applicant: The Babcock & Wilcox Company Akron, OH 44305 (US)	(72) Inventors: THOME, Ted L. Cuyahoga Falls, Ohio 44223 (US) HABIB, Tony F. Lancaster, Ohio 43130 (US) SPRINGER, JR., Billy G. Canal Winchester, Ohio 43110 (US) (74) Representative: D Young & Co LLP  120 Holborn London EC1N 2DY London EC1N 2DY (GB)