| 摘要 |
Provided is a plasma-jet ignition plug wherein the progress of channeling is suppressed, and the heat is satisfactorily drawn. A small diameter portion (15) of an insulation glass (10) has a linear shape in the direction of an axis (O). In a center electrode (20), the outer diameters of a frontmost end portion (23), a stepped portion (24), a front end portion (22), and a body portion (21) are increased in this order. |
| 申请人 |
NGK SPARK PLUG CO., LTD.,;KAMEDA, HIROYUKI;SATO, YOSHIKUNI;NAKANO, DAISUKE;YAMAMURA, NAOFUMI;KASAHARA, DAISUKE |
发明人 |
KAMEDA, HIROYUKI;SATO, YOSHIKUNI;NAKANO, DAISUKE;YAMAMURA, NAOFUMI;KASAHARA, DAISUKE |
