Method of manufacturing a spark plug with concentrically...

Details Method of manufacturing a spark plug with concentrically... Method of manufacturing a spark plug with concentrically...

H - Electricity

01

T

H01T 1/22 (2006.01) H01T 13/32 (2006.01) H01T 21/02 (2006.01)

Patent

CA 2377871

Method FOR manufacturing a spark plug, for an internal combustion engine, provided with a double ringed ground electrode (10) permanently affixed to the spark plug base. One ring (24) provided with a downwardly displaced shielding and centering lip (22) is welded to the spark plug base while the other (15), held apart by one or more legs (32), is positioned above and concentric to the axis of, the spark plug center electrode, by use of an alignment tool (50).

L'invention concerne un procédé de fabrication d'une bougie d'allumage pour un moteur thermique, pourvue d'une électrode de masse (10) à deux anneaux fixée de manière permanente à la base de ladite bougie. Un anneau (24) doté de lèvres de centrage (22) et de protection déplacées vers le bas est soudé à la base de la bougie d'allumage, l'autre anneau (15), maintenu à distance par au moins un élément bras (32), étant placé au-dessus de l'électrode centrale de ladite bougie, et de manière concentrique à son axe, au moyen d'un outil d'alignement (50).

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