Title:
点火プラグおよびその製造方法
Document Type and Number:
Japanese Patent JP5724395
Kind Code:
B2
Abstract:
A spark plug for an internal combustion engine includes a housing having a distal end, a proximal end, and an outer periphery extending therebetween. A mounting thread formed on the outer periphery at the proximal end of the housing secures the spark plug to the engine. A center electrode fixedly secured along a central axis of the housing has a first end extending outwardly from the proximal end of the housing. A ground electrode secured to the proximal end of the housing has an electrode tip at a first distance from the center electrode. The electrode tip has a central aperture extending through the ground electrode from an upper surface to a lower surface. A protruding edge circumscribes the aperture and extends a second distance from the upper surface of the electrode tip towards the center electrode.
Inventors:
Nicholas Sea Poshin
Fan Jung Eun
Fan Jung Eun
Application Number:
JP2011004045A
Publication Date:
May 27, 2015
Filing Date:
January 12, 2011
Export Citation:
Assignee:
株式会社デンソー
デンソー インターナショナル アメリカ インコーポレーテッド
デンソー インターナショナル アメリカ インコーポレーテッド
International Classes:
H01T13/32; H01T13/20; H01T21/02
Domestic Patent References:
| JP54179968U | ||||
| JP56140185U | ||||
| JP2009054574A | ||||
| JP61030989U |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo