EP 3623591 B1 20210331 - VALVE FOR INTERNAL-COMBUSTION ENGINES
Title (en)
VALVE FOR INTERNAL-COMBUSTION ENGINES
Title (de)
VENTIL FÜR VERBRENNUNGSMOTOREN
Title (fr)
SOUPAPE POUR MOTEURS À COMBUSTION INTERNE
Publication
Application
Priority
EP 18194008 A 20180912
Abstract (en)
[origin: EP3623591A1] The present invention relates to a valve (1) for internal-combustion engines, in particular a titanium valve (1), in which at least one region of the valve (1) has a nitrided layer (10) formed by titanium nitrides and/or aluminium-titanium nitrides, that is up to 500 microns thick, with high surface hardness and high hardness through the depth of the thickness of the nitrided layer (10), providing the valve (1) with excellent wear resistance and high durability.
IPC 8 full level
CPC (source: EP)
F01L 3/02 (2013.01); F01L 3/04 (2013.01); F01L 2303/00 (2020.05)
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 18194008 A 20180912