(19)
(11) EP 4 824 406 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24834503.5

(22) Date of filing: 06.12.2024
(51) International Patent Classification (IPC): 
F02F 1/24(2006.01)
F02B 19/12(2006.01)
(52) Cooperative Patent Classification (CPC):
F02F 1/242; F02B 19/18; F02B 2023/102; F02B 19/12
(86) International application number:
PCT/US2024/058776
(87) International publication number:
WO 2025/128411 (19.06.2025 Gazette 2025/25)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 12.12.2023 US 202363608937 P

(71) Applicant: Cummins Inc.
Columbus, IN 47201 (US)

(72) Inventors:
  • JOSHI, Sachin
    Columbus, Indiana 42703 (US)
  • QIN, Xiao
    Columbus, Indiana 47201 (US)

(74) Representative: Cleveland Scott York 
5 Norwich Street
London EC4A 1DR
London EC4A 1DR (GB)

   


(54) CYLINDER HEAD ASSEMBLIES AND SPARK PLUGS CONFIGURED TO PURGE GAS RESIDUALS FOR PRE-IGNITION MITIGATION