(19)

(11)

EP 3 976 965 A1

(12)

(43) Date of publication: 06.04.2022 Bulletin 2022/14 (21) Application number: 20736617.0 (22) Date of filing: 30.06.2020

(51) International Patent Classification (IPC):  F04B 39/00(2006.01) F04B 39/16(2006.01) F04B 39/04(2006.01) F04B 39/02(2006.01) (52) Cooperative Patent Classification (CPC): F04B 39/0061; F04B 39/0246; F04B 39/16; F04B 39/04 (86) International application number: PCT/EP2020/068366 (87) International publication number: WO 2020/240048 (03.12.2020 Gazette 2020/49)

(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: 31.05.2019 TR 201908425 (71) Applicant: Arçelik Anonim Sirketi 34445 Istanbul (TR)	(72) Inventors: GUREL, Semih 34445 34445 Istanbul (TR) KERPICCI, Husnu 34445 34445 Istanbul (TR) KURTULDU, Ercan 34445 34445 Istanbul (TR)