(19)
(11) EP 4 569 215 A1

(12)

(43) Date of publication:
18.06.2025 Bulletin 2025/25

(21) Application number: 22757307.8

(22) Date of filing: 12.08.2022
(51) International Patent Classification (IPC): 
F02F 1/24(2006.01)
 F02B 19/10(2006.01)
(52) Cooperative Patent Classification (CPC):
F02F 1/24; F02B 19/108; F02M 21/0281; F02M 21/0293; Y02T 10/12
(86) International application number:
PCT/FI2022/050525
(87) International publication number:
WO 2024/033562 (15.02.2024 Gazette 2024/07)
(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: Wärtsilä Finland Oy
65170 Vaasa (FI)

(72) Inventors:
  • OJANPERÄ, Ari-Matti
    65170 Vaasa (FI)
  • AHLVIK, Ilari
    65170 Vaasa (FI)
  • HAKALAHTI, Jouni
    65170 Vaasa (FI)
  • MÄKINEN, Katri
    65170 Vaasa (FI)

(74) Representative: Berggren Oy 
P.O. Box 16 Eteläinen Rautatiekatu 10A
00101 Helsinki
00101 Helsinki (FI)

   


(54) CYLINDER HEAD, CYLINDER HEAD ASSEMBLY, PISTON ENGINE, CONNECTING BLOCK AND METHOD OF DETECTING LEAKAGES OF GASEOUS FUEL IN A PISTON ENGINE