EP 0817341 B1 20000906 - Spark plug
Title (en)
Spark plug
Title (de)
Zündkerze
Title (fr)
Bougie d'allumage
Publication
Application
Priority
- JP 18834796 A 19960628
- JP 33511996 A 19961128
Abstract (en)
[origin: EP0817341A1] Spark plug has a central electrode, an insulator provided exterior to the central electrode, main metallic shell provided exterior to the insulator in such a way that the central electrode protrudes from one end, and a ground electrode coupled at one end to the main metallic shell and which has the other end disposed to face the central electrode 3, with a chip being secured to either the central electrode or the ground electrode or both to form spark discharge gap g. The chip is made of a metal based on Ir which contains Rh in an amount ranging from 3 to 50 wt% (50 wt% being not inclusive). <IMAGE>
IPC 1-7
IPC 8 full level
C22C 5/04 (2006.01); F02P 13/00 (2006.01); H01T 13/39 (2006.01); H01T 21/02 (2006.01)
CPC (source: EP US)
H01T 13/39 (2013.01 - EP US); H01T 21/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0817341 A1 19980107; EP 0817341 B1 20000906; EP 0817341 B2 20031210; CN 1059293 C 20001206; CN 1170980 A 19980121; DE 69703011 D1 20001012; DE 69703011 T2 20010111; DE 69703011 T3 20040527; EP 0975075 A2 20000126; EP 0975075 A3 20000202; JP 3461670 B2 20031027; JP H1074575 A 19980317; KR 100355886 B1 20021226; KR 980006677 A 19980330; US RE43758 E 20121023
DOCDB simple family (application)
EP 97110583 A 19970627; CN 97113548 A 19970627; DE 69703011 T 19970627; EP 99122560 A 19970627; JP 33511996 A 19961128; KR 19970027677 A 19970626; US 49552406 A 20060731