(19)

(11)

EP 3 679 312 A1

(12)

(43) Date of publication: 15.07.2020 Bulletin 2020/29 (21) Application number: 18854722.8 (22) Date of filing: 04.09.2018

(51) International Patent Classification (IPC):  F28D 7/10(2006.01) F16L 9/18(2006.01) F28F 1/06(2006.01) (86) International application number: PCT/KR2018/010315 (87) International publication number: WO 2019/050258 (14.03.2019 Gazette 2019/11)

(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: 06.09.2017 KR 20170114094 (71) Applicant: Contitech Fluid Korea Ltd. Jeonju-si, Jeollabuk-do 54844 (KR)	(72) Inventors: LEE, Kilnam Nonsan-si Chungcheongnam-do 32973 (KR) KEMPF, Dominik 60433 Frankfurt (DE) (74) Representative: Preusser, Andrea  Continental Aktiengesellschaft Intellectual Property Postfach 169 30001 Hannover 30001 Hannover (DE)