Electric lamp or space discharge component or device manufacturi – Process – Spark plug or spark gap making
Patent
1981-05-22
1984-12-25
Moore, David K.
Electric lamp or space discharge component or device manufacturi
Process
Spark plug or spark gap making
313141, 313143, H01T 2102, H01T 1332, H01T 1336
Patent
active
044901224
ABSTRACT:
The present invention relates to a process for manufacturing an ignition device or connector for an internal combustion engine and the ignition device or convection obtained by such process. The ignition convector, in use, creates a plasma for igniting lean mixtures. Said device an insulator 2 containing a central electrode 3 and a metal shell 4, in which the insulator is fixed. The ground electrode of conventional spark-plugs is replaced by a circular capsule 17 welded to the shell base, after having been subjected to a hard chromizing treatment. The shell comprises an annular recess 14 provided in the thickness of its wall, and is welded to the ceramic insulator 2 by brazing.
REFERENCES:
patent: 1998158 (1935-04-01), Irvin et al.
patent: 2150723 (1939-03-01), Nowosielski
patent: 2616407 (1952-11-01), Thomas
patent: 3056899 (1962-10-01), Clayton
Espada Anstalt
Moore David K.
Wieder K.
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