EP 4211284 A1 20230719 - PISTON FOR AN INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE HAVING A PISTON, AND USE OF AN IRON-BASED ALLOY
Title (en)
PISTON FOR AN INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE HAVING A PISTON, AND USE OF AN IRON-BASED ALLOY
Title (de)
KOLBEN FÜR EINEN VERBRENNUNGSMOTOR, VERBRENNUNGSMOTOR MIT EINEM KOLBEN UND VERWENDUNG EINER EISENBASIERTEN LEGIERUNG
Title (fr)
PISTON POUR MOTEUR À COMBUSTION INTERNE, MOTEUR À COMBUSTION INTERNE COMPORTANT UN PISTON ET UTILISATION D'UN ALLIAGE À BASE DE FER
Publication
Application
Priority
- DE 102020211246 A 20200908
- EP 2021074659 W 20210908
Abstract (en)
[origin: WO2022053484A1] A piston for an internal combustion engine, in particular for a diesel engine, consists of an iron-based alloy comprising the following alloy elements in percent by weight (wt%): carbon (C): 0.07 to 0.24; chromium (Cr): > 7.0 to 12.5; molybdenum (Mo): 0.3 to 1.2; manganese (Mn): 0.3 to 0.9; silicon (Si): < 0.5; copper (Cu): < 0.3; nickel (Ni): < 0.8; vanadium (V): 0.15 to 0.35; sulphur (S): < 0.015; phosphorus (P): < 0.025; niobium (Nb): < 0.1; nitrogen (N): < 0.07; aluminium (Al): < 0.04; tungsten (W): < 2.5 and the remainder being iron (Fe) and unavoidable impurities. The invention also relates to the use of such an iron-based alloy for pistons of an internal combustion engine, in particular of a diesel engine.
IPC 8 full level
C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); F02F 3/00 (2006.01)
CPC (source: EP US)
C22C 38/001 (2013.01 - US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - US); C22C 38/20 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); F02F 3/0084 (2013.01 - US); C21D 2211/002 (2013.01 - EP); C21D 2211/005 (2013.01 - EP); C21D 2211/008 (2013.01 - EP); F02F 3/0084 (2013.01 - EP)
Citation (search report)
See references of WO 2022053484A1
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022053484 A1 20220317; CN 116194608 A 20230530; DE 102020211246 A1 20220414; EP 4211284 A1 20230719; US 2023383708 A1 20231130
DOCDB simple family (application)
EP 2021074659 W 20210908; CN 202180061774 A 20210908; DE 102020211246 A 20200908; EP 21773566 A 20210908; US 202118044508 A 20210908