EP 1304783 A1 20030423 - Method for manufacturing a spark plug and corresponding spark plug
Title (en)
Method for manufacturing a spark plug and corresponding spark plug
Title (de)
Herstellungsverfahren einer Zündkerze und übereinkommende Zündkerze
Title (fr)
Procédé de fabrication de bougie d'allumage et bougie correspondante
Publication
Application
Priority
EP 01125016 A 20011020
Abstract (en)
A method for manufacturing a spark plug to be mounted in a combustion chamber and a corresponding spark plug is proposed, wherein the spark plug comprises a ceramic insulator 12 and a metal housing 5. In a first step the insulator is placed in a through hole of the housing, wherein the rotational axis 11 of the insulator and the rotational axis 6 of the housing are parallel. The insulator is placed in the through hole of the housing so that a first washer seat (121) of the insulator is placed adjacent to an inner washer seat (51) of the housing thereby forming a first seal. In a second step a force consisting of axial and radial components is applied to a rim (52) of the housing using a curling tool (41) in order to deform the rim and to press it against a second washer seat (122) of the insulator forming a second seal. In a first step a radial force supplied to at least one section of the housing between the first seal and the second seal using a radial force tool (43) causing a dent (55) in the housing. <IMAGE>
IPC 1-7
IPC 8 full level
H01T 21/02 (2006.01)
CPC (source: EP)
H01T 21/02 (2013.01)
Citation (search report)
- [XA] US 3594883 A 19710727 - BRAY STEWART V
- [A] US 3451110 A 19690624 - BRAY STEWART V
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 1304783 A1 20030423; EP 1304783 B1 20050420; DE 60110231 D1 20050525; DE 60110231 T2 20060223; ES 2240304 T3 20051016
DOCDB simple family (application)
EP 01125016 A 20011020; DE 60110231 T 20011020; ES 01125016 T 20011020