发明名称 |
Ignition device having an induction welded and laser weld reinforced firing tip and method of construction |
摘要 |
An ignition device for an internal combustion engine and method of construction therefore includes a housing with an insulator secured therein. A center electrode is mounted within the insulator. A ground electrode extends from the housing with a portion of the ground electrode defining a spark gap across from the center electrode. The center electrode has a firing tip, wherein a resistance weld joint initially bonds the firing tip to the center electrode and a continuous bead of overlapping first weld pools formed substantially from the material of the firing tip further bonds the firing tip to the electrode. A continuous bead of overlapping second weld pools formed radially outwardly from the first weld pools forms a rounded shoulder surface extending from the first weld pools to an outer surface of the center electrode.
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申请公布号 |
US8026654(B2) |
申请公布日期 |
2011.09.27 |
申请号 |
US20070861834 |
申请日期 |
2007.09.26 |
申请人 |
FEDERAL-MOGUL WORLD WIDE, INC. |
发明人 |
KOWALSKI KEVIN JAY;TINWELL PAUL |
分类号 |
H01T13/00;H01T13/20;H01T21/02 |
主分类号 |
H01T13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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