EP 2215334 A1 20100811 - INTAKE OR DISCHARGE VALVE FOR A COMBUSTION ENGINE, AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
INTAKE OR DISCHARGE VALVE FOR A COMBUSTION ENGINE, AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
EIN- ODER AUSLASSVENTIL FÜR EINEN VERBRENNUNGSMOTOR SOWIE VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
SOUPAPE D'ADMISSION OU D'ECHAPPEMENT POUR MOTEUR A COMBUSTION INTERNE ET SON PROCEDE DE REALISATION
Publication
Application
Priority
- EP 2008008792 W 20081017
- DE 102007052800 A 20071102
Abstract (en)
[origin: WO2009056239A1] Disclosed is an intake or discharge valve (1) for a combustion engine, comprising a valve disk (3) and a valve stem (2) that has a chromium layer (9) as a running surface. In order to increase the service life, a nickel layer (6) is provided between the basic material of the valve stem (2) and the chromium layer (9), and the chromium layer (9) is thicker than the nickel layer (6) that lies thereunder.
IPC 8 full level
F01L 3/04 (2006.01)
CPC (source: EP)
F01L 3/04 (2013.01)
Citation (search report)
See references of WO 2009056239A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007052800 B3 20090507; AT E508255 T1 20110515; DE 502008003457 D1 20110616; DK 2215334 T3 20110718; EP 2215334 A1 20100811; EP 2215334 B1 20110504; WO 2009056239 A1 20090507
DOCDB simple family (application)
DE 102007052800 A 20071102; AT 08843581 T 20081017; DE 502008003457 T 20081017; DK 08843581 T 20081017; EP 08843581 A 20081017; EP 2008008792 W 20081017