| 发明名称 |
SPARK PLUG HAVING FIRING PAD |
| 摘要 |
A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad. |
| 申请公布号 |
US2014210334(A1) |
申请公布日期 |
2014.07.31 |
| 申请号 |
US201414166145 |
申请日期 |
2014.01.28 |
| 申请人 |
FEDERAL-MOGUL IGNITION COMPANY |
发明人 |
Kowalski Kevin J.;Quitmeyer Frederick J.;Thomson Nathan A.;Verhoff Curtis W.;Keller Richard L. |
| 分类号 |
H01T13/32;H01T21/02 |
主分类号 |
H01T13/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A spark plug, comprising:
a shell having an axial bore; an insulator having an axial bore and being disposed at least partially within the axial bore of the shell; a center electrode disposed at least partially within the axial bore of the insulator; a ground electrode attached to the shell and having a free end surface; and a firing pad made of a precious metal material attached to the ground electrode, the firing pad having a side surface at a peripheral edge (P) of the firing pad, wherein the free end surface of the ground electrode and the side surface of the firing pad are flush or nearly flush relative to each other. |
| 地址 |
Southfield MI US |
