EP 1602743 A4 20070124 - NITRIDED VALVE LIFTER AND METHOD FOR MANUFACTURE THEREOF
Title (en)
NITRIDED VALVE LIFTER AND METHOD FOR MANUFACTURE THEREOF
Title (de)
NITRIDIERTER VENTILSTÖSSEL UND ZUGEHÖRIGES HERSTELLUNGSVERFAHREN
Title (fr)
POUSSOIR DE SOUPAPE NITRURE ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- JP 2004003022 W 20040309
- JP 2003063450 A 20030310
Abstract (en)
[origin: EP1602743A1] A sliding surface (2) of a valve lifter (1) or a shim (3) is subjected to a gaseous nitriding to have a surface hardness of Hv 660 or higher and a thickness of a compound layer (6) of 1 to 5 mu m. The nitrided layer on the surface is a dense compound layer (6) with a porosity of 5 % or less. <IMAGE>
IPC 1-7
IPC 8 full level
C23C 8/02 (2006.01); C23C 8/26 (2006.01); C23C 8/34 (2006.01); F01L 1/16 (2006.01)
CPC (source: EP KR US)
C23C 8/02 (2013.01 - EP KR US); C23C 8/26 (2013.01 - EP KR US); C23C 8/32 (2013.01 - KR); C23C 8/34 (2013.01 - EP US); F01L 1/14 (2013.01 - KR); F01L 1/16 (2013.01 - EP US); F01L 2303/00 (2020.05 - EP US)
Citation (search report)
- [A] US 2002162523 A1 20021107 - ISHIHARA MOTOKATA [JP]
- See references of WO 2004081252A1
Designated contracting state (EPC)
DE ES GB HU
DOCDB simple family (publication)
EP 1602743 A1 20051207; EP 1602743 A4 20070124; EP 1602743 B1 20071226; CN 1784505 A 20060607; CN 1784505 B 20101103; DE 602004010890 D1 20080207; DE 602004010890 T2 20081211; ES 2295833 T3 20080416; JP 4141473 B2 20080827; JP WO2004081252 A1 20060615; KR 20050118175 A 20051215; TW 200506181 A 20050216; US 2006144359 A1 20060706; US 2008066703 A1 20080320; WO 2004081252 A1 20040923
DOCDB simple family (application)
EP 04718747 A 20040309; CN 200480012673 A 20040309; DE 602004010890 T 20040309; ES 04718747 T 20040309; JP 2004003022 W 20040309; JP 2005503522 A 20040309; KR 20057016812 A 20050909; TW 93106196 A 20040309; US 54690205 A 20050825; US 89844607 A 20070912