Title:
プラズマジェット点火プラグ
Document Type and Number:
Japanese Patent JP4787339
Kind Code:
B2
Abstract:
A plasma jet ignition plug is provided which is capable of restraining occurrence of channeling while reducing removal of energy of plasma through a ground electrode at the time of emission of plasma. The plasma jet ignition plug includes a ground electrode (201) which projects inwardly from a front end face (57) of a metallic shell (50) toward an opening end (14) of a cavity (60) which is open at a front end face (16) of an insulator (10). A projecting distal end (203) which forms a spark discharge gap between the distal end (203) and a center electrode (20) within a cavity (60) is located inwardly, with respect to a diametral direction P orthogonal to an axis O, of a position which is located 0.5 mm radially outward from the opening end (14) of the cavity (60).
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Inventors:
Nakamura Dori
Yuichi Yamada
Iwao Kunito
Mikuni Sato
Nakano Teijo
Yuichi Yamada
Iwao Kunito
Mikuni Sato
Nakano Teijo
Application Number:
JP2009025414A
Publication Date:
October 05, 2011
Filing Date:
February 05, 2009
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
H01T13/52; H01T13/32
Domestic Patent References:
| JP55166092U |
Attorney, Agent or Firm:
Hisashi Yamamoto