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公开(公告)号：EP1990635A1
公开(公告)日：2008-11-12
申请号：EP08007054.3
申请日：2008-04-09
发明人： Kume, Makoto , Yamada, Yuichi
IPC分类号： G01N27/407
CPC分类号： G01N27/4077 , Y10T29/49826
摘要： There is provided a gas sensor, which includes a sensor element extending axially of the gas sensor and having a gas sensing portion at a front end thereof and an electrode portion at a rear end thereof, a cylindrical metal shell retaining therein the sensor element with the gas sensing portion and the electrode portion protruding from front and rear ends of the metal shell, respectively, and having a flange portion and a rear end portion located on a rear side of the flange portion, a cylindrical protection cover having a front end fitted onto the rear end portion of the metal shell so as to cover the electrode portion and a weld joint through which the entire circumference of the front end of the protection cover is joined through the metal shell. The weld joint extends from an end face of the protection cover to the metal shell.
摘要翻译： 提供了一种气体传感器，其包括传感器元件，该传感器元件沿气体传感器轴向延伸，并且在其前端具有气体检测部分，在其后端具有电极部分，其中将传感器元件保持在其中的圆柱形金属壳体 气体检测部分和电极部分分别从金属壳体的前端和后端突出，并且具有位于凸缘部分的后侧上的凸缘部分和后端部分的圆柱形保护盖，其前端装配到 金属壳体的后端部分覆盖电极部分和焊接接头，保护盖前端的整个周边通过焊接接头通过金属壳体接合。 焊接接头从保护盖的端面延伸到金属外壳。
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公开(公告)号：EP1837967A2
公开(公告)日：2007-09-26
申请号：EP07005726.0
申请日：2007-03-20
发明人： Hagiwara, Katsunori , Nagasawa, Satoshi , Matutani, Wataru , Nakamura, Toru , Kato, Tomoaki , Yamada, Yuichi
摘要： A plasma-jet spark plug includes a metal shell, an electrical insulator retained in the metal shell, a center electrode held in an axial hole of the electrical insulator to define a cavity by a front end face of the center electrode and an inner circumferential surface of the insulator axial hole and a ground electrode arranged on a front end of the electrical insulator. The ground electrode has an opening defining portion defining an opening for communication between the cavity and the outside of the spark plug. The opening defining portion is located radially inside of or in contact with a first imaginary circular conical surface where the first imaginary circular conical surface has an axis coinciding with an axis of the spark plug and a vertex angle of 120° opening toward a front end of the spark plug and passing through a front edge of the insulator axial hole.
摘要翻译： 等离子体火花塞包括金属壳，保持在金属壳中的电绝缘体，保持在电绝缘体的轴向孔中的中心电极，以通过中心电极的前端面限定空腔，以及内周面 的绝缘体轴向孔和布置在电绝缘体的前端上的接地电极。 接地电极具有限定开口的开口限定部分，用于在空腔和火花塞外部之间连通。 开口限定部分位于第一假想圆锥形表面的径向内侧或与第一假想圆锥形表面接触，其中第一假想圆锥形表面具有与火花塞的轴线重合的轴线，并且向前端开口的顶角为120° 火花塞通过绝缘体轴向孔的前缘。
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公开(公告)号：EP2099107B1
公开(公告)日：2015-05-13
申请号：EP09154571.5
申请日：2009-03-06
发明人： Nakamura, Toru , Kato, Tomoaki , Yamada, Yuichi
CPC分类号： H01T21/02
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公开(公告)号：EP2099107A3
公开(公告)日：2013-04-03
申请号：EP09154571.5
申请日：2009-03-06
发明人： Nakamura, Toru , Kato, Tomoaki , Yamada, Yuichi
CPC分类号： H01T21/02
摘要： A method for manufacturing an ignition plug is provided. The method includes : preparing an insulator having a cavity provided at a leading end portion thereof by disposing a leading end of a center electrode more inwards in an axial hole than a leading end of the insulator; building the insulator in an interior of a metal shell; disposing a ground electrode at a leading end portion of the metal shell; positioning a center of a through hole of the ground electrode and a center of the cavity of the insulator; and welding the ground electrode and the metal shell together after the positioning step.
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公开(公告)号：EP2099107A2
公开(公告)日：2009-09-09
申请号：EP09154571.5
申请日：2009-03-06
发明人： Nakamura, Toru , Kato, Tomoaki , Yamada, Yuichi
IPC分类号： H01T21/02
CPC分类号： H01T21/02
摘要： A method for manufacturing an ignition plug is provided. The method includes : preparing an insulator having a cavity provided at a leading end portion thereof by disposing a leading end of a center electrode more inwards in an axial hole than a leading end of the insulator; building the insulator in an interior of a metal shell; disposing a ground electrode at a leading end portion of the metal shell; positioning a center of a through hole of the ground electrode and a center of the cavity of the insulator; and welding the ground electrode and the metal shell together after the positioning step.
摘要翻译： 提供一种制造火花塞的方法。 该方法包括：通过在比绝缘体的前端更远的轴向孔内设置中心电极的前端，在其前端部准备具有空腔的绝缘体; 在金属外壳的内部建立绝缘体; 在金属壳的前端设置接地电极; 定位接地电极的通孔的中心和绝缘体的空腔的中心; 并且在定位步骤之后将接地电极和金属外壳焊接在一起。
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