EP 1669557 A1 20060614 - VALVE SHEET FOR ENGINE
Title (en)
VALVE SHEET FOR ENGINE
Title (de)
VENTILPLATTE FÜR MOTOR
Title (fr)
PLAQUE DE SOUPAPE POUR MOTEUR
Publication
Application
Priority
- JP 2004014244 W 20040929
- JP 2003341540 A 20030930
Abstract (en)
It is an object to provide a valve seat for an engine which is provided in a seat-mounting portion provided at an inlet or outlet of a cylinder head formed by an aluminum alloy and has resistance to galvanic corrosion. A Fe-based valve seat 10 that is provided in a seat-mounting portion at an inlet 6 of a cylinder head 2 formed by aluminum alloy is made of a Fe-Al-based material. The Fe-Al-based material contains Al in the range of 15 to 23% by weight. Galvanic corrosion is prevented by decreasing a potential difference between the seat-mounting portion 13 of the cylinder-head 2 and the valve-seat 2 as much as possible.
IPC 1-7
IPC 8 full level
B22F 5/10 (2006.01); C22C 33/02 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); F01L 3/02 (2006.01)
CPC (source: EP KR)
C22C 38/06 (2013.01 - EP KR); F01L 3/02 (2013.01 - EP KR); F01L 2301/00 (2020.05 - EP KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1669557 A1 20060614; EP 1669557 A8 20061004; CN 1860288 A 20061108; JP 2005105964 A 20050421; KR 20060116800 A 20061115; WO 2005031125 A1 20050407
DOCDB simple family (application)
EP 04788310 A 20040929; CN 200480028238 A 20040929; JP 2003341540 A 20030930; JP 2004014244 W 20040929; KR 20067006086 A 20060329