Title:
プラズマジェットプラグ
Document Type and Number:
Japanese Patent JP6419109
Kind Code:
B2
Abstract:
A plasma jet plug includes a rod-shaped central electrode, an insulator having an axial hole, a metal shell disposed around the insulator, an orifice electrode electrically connected to the metal shell and located at a distal end side of the insulator, and a gasket that contacts an outer surface of the insulator and an inner surface of the metal shell. The insulator includes a first member, a second member and an inorganic seal layer. The first member has the axial hole and includes a large-diameter portion and a small-diameter portion. The second member has a through hole into which the small-diameter portion is inserted. The second member has an outer surface that contacts the gasket. The inorganic seal layer seals a gap between the first member and the second member. In a section including the axis, the sum of seal lengths is greater than or equal to 3 mm.
More Like This:
Inventors:
Daisuke Kasahara
Yuichi Yamada
Naoshi Mukaiyama
Yuichi Yamada
Naoshi Mukaiyama
Application Number:
JP2016114050A
Publication Date:
November 07, 2018
Filing Date:
June 08, 2016
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
H01T13/36; H01T13/20; H01T13/54; H01T21/02
Domestic Patent References:
| JP56038988U | ||||
| JP2016031814A | ||||
| JP2007141786A | ||||
| JP63503418A | ||||
| JP4286890A |
Foreign References:
| US2863080 | ||||
| US4949006 | ||||
| US5477104 |
Attorney, Agent or Firm:
Fenghwa International Patent Office