(19)

(11)

EP 3 931 431 A1

(12)

(43) Date of publication: 05.01.2022 Bulletin 2022/01 (21) Application number: 18842754.6 (22) Date of filing: 31.12.2018

(51) International Patent Classification (IPC):  F02B 47/02(2006.01) F01B 7/14(2006.01) F02B 75/28(2006.01) F02M 25/032(2006.01) F02B 75/06(2006.01) (52) Cooperative Patent Classification (CPC): F02M 25/032; F02B 75/287; F02B 47/02; F02M 25/038; F01B 7/14; Y02T 10/12; F02B 75/065 (86) International application number: PCT/PL2018/000131 (87) International publication number: WO 2020/141981 (09.07.2020 Gazette 2020/28)

(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 (71) Applicant: Gaj-Jablonski, Wojciech 07-410 Ostroleka (PL)	(72) Inventor: Gaj-Jablonski, Wojciech 07-410 Ostroleka (PL) (74) Representative: Bartodziej, Henryk  Rzecznik Patentowy Ul. Brzezinska 38 41-404 Myslowice 41-404 Myslowice (PL)