EP 2494158 A1 20120905 - AN EXHAUST VALVE SPINDLE FOR AN INTERNAL COMBUSTION ENGINE, AND A METHOD OF MANUFACTURING
Title (en)
AN EXHAUST VALVE SPINDLE FOR AN INTERNAL COMBUSTION ENGINE, AND A METHOD OF MANUFACTURING
Title (de)
ABGASVENTILSPINDEL FÜR EINEN VERBRENNUNGSMOTOR UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
TIGE DE SOUPAPE D'ÉCHAPPEMENT POUR MOTEUR À COMBUSTION INTERNE ET PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- DK PA200970184 A 20091030
- DK 2010050292 W 20101029
Abstract (en)
[origin: WO2011050815A1] An exhaust valve spindle (1) for an internal combustion engine, particularly a two-stroke crosshead engine, which exhaust valve spindle comprises a valve head (3) with a base portion (4) of an alloyed steel, and an outer facing (5) forming the surface of the valve spindle towards a combustion chamber. The outer facing (5) has been formed from particulate starting material of a hot-corrosion-resistant alloy being nickel-based, chromium- based or cobalt-based, where said particulate starting material has been united to a coherent layer. At least at the transition zone to the base portion (4) the particles in the particulate material of the outer facing (5) have been deformed into oval or elongate shapes by shear strain caused by forging the outer facing and the base portion, and that the forged outer facing (5) has a density of at least 98.0 %.
IPC 8 full level
F01L 3/04 (2006.01); B21J 5/00 (2006.01); B21J 5/06 (2006.01); B21K 1/22 (2006.01); B21K 1/24 (2006.01); B22F 3/14 (2006.01); B22F 3/15 (2006.01); B22F 3/17 (2006.01); B22F 5/00 (2006.01); B22F 7/08 (2006.01)
CPC (source: EP KR)
B21J 5/002 (2013.01 - EP); B21J 5/06 (2013.01 - EP); B21K 1/22 (2013.01 - EP); B21K 1/24 (2013.01 - KR); B22F 3/14 (2013.01 - EP); B22F 3/17 (2013.01 - EP KR); B22F 5/008 (2013.01 - EP); B22F 7/08 (2013.01 - EP); F01L 3/04 (2013.01 - EP KR)
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)
WO 2011050815 A1 20110505; CN 102667077 A 20120912; CN 102667077 B 20150902; CN 105127433 A 20151209; CN 105127433 B 20180413; DK 177071 B1 20110530; EP 2494158 A1 20120905; EP 2494158 A4 20170503; EP 2494158 B1 20171018; ES 2651311 T3 20180125; JP 2011094605 A 20110512; JP 4701309 B2 20110615; KR 101435401 B1 20140828; KR 20120075485 A 20120706
DOCDB simple family (application)
DK 2010050292 W 20101029; CN 201080048506 A 20101029; CN 201510511006 A 20101029; DK PA200970184 A 20091030; EP 10826128 A 20101029; ES 10826128 T 20101029; JP 2010143301 A 20100624; KR 20127013464 A 20101029