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公开(公告)号：US20170358905A1
公开(公告)日：2017-12-14
申请号：US15492242
申请日：2017-04-20
Applicant: NGK Spark Plug Co., LTD.
Inventor： Daisuke KASAHARA , Yuichi YAMADA , Naoyuki MUKOYAMA
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.
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公开(公告)号：US20160218486A1
公开(公告)日：2016-07-28
申请号：US15025609
申请日：2014-08-20
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Shinya MITSUDA , Yuichi YAMADA
IPC: H01T13/20
Abstract: A spark plug includes an insulator having a through hole formed in the direction of an axis, a rod-shaped center electrode inserted in the through hole and extending in the direction of the axis, a metal shell disposed around an outer circumference of the insulator, and a ground electrode electrically conducted with the metal shell and adapted to define a gap between the ground electrode and the center electrode. A front end part of the insulator has a front end surface, an outer circumferential surface and a curved surface region formed between the front end surface and the outer circumferential surface. In a cross section including the axis, a front end of an inner circumferential surface of the metal shell faces the curved surface region in a direction perpendicular to the axis. The curved surface region has a curvature radius of 0.2 mm to 0.8 mm.
Abstract translation: 火花塞包括绝缘体，该绝缘体具有沿轴线方向形成的通孔，插入在该通孔中并在该轴线方向上延伸的棒状中心电极，设置在该绝缘体的外周周围的金属壳， 以及接地电极，与所述金属壳电连接并且适于限定所述接地电极和所述中心电极之间的间隙。 绝缘体的前端部具有形成在前端面和外周面之间的前端面，外周面和曲面区域。 在包括轴线的横截面中，金属壳体的内周面的前端在与轴线垂直的方向上面对弯曲表面区域。 曲面区域的曲率半径为0.2mm〜0.8mm。
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公开(公告)号：US20140298931A1
公开(公告)日：2014-10-09
申请号：US14246336
申请日：2014-04-07
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takehiro OBA , Yuichi YAMADA , Shingo ITO , Takeshi NANBU , Hironari FURUTA , Makoto KUME
IPC: H01R11/18
CPC classification number: H01R11/18 , G01N27/4062 , H01R11/01 , H01R13/2442
Abstract: A sensor includes a detection element; a plurality of terminal members, each of the terminal members including an elongated frame body portion extending along the axial direction, an element contact portion in elastic contact with an electrode terminal, and a folded portion connecting the frame body portion and the element contact portion; and a separator. The element contact portion of each of the terminal members has a turning portion which turns inward with respect to the width direction between the folded portion and a contact portion in contact with an electrode terminal. In those two of the terminal members which are adjacent to each other along the width direction, the distance along the width direction between the contact portions is smaller than the distance along the width direction between the frame body portions.
Abstract translation: 传感器包括检测元件; 多个端子构件，每个端子构件包括沿轴向延伸的细长框架体部分，与电极端子弹性接触的元件接触部分和连接框架本体部分和元件接触部分的折叠部分; 和分隔符。 每个端子构件的元件接触部分具有相对于折叠部分和与电极端子接触的接触部分之间的宽度方向向内倾斜的转动部分。 在沿着宽度方向彼此相邻的那些端子构件中，接触部之间沿着宽度方向的距离小于框体部之间沿着宽度方向的距离。
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公开(公告)号：US20180019579A1
公开(公告)日：2018-01-18
申请号：US15546875
申请日：2016-01-29
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takuya KAWADE , Yuichi YAMADA
CPC classification number: H01T13/39 , C22C1/0466 , H01T13/06 , H01T13/32 , H01T21/02
Abstract: A spark plug includes an insulator, a metal shell surrounding the insulator, a center electrode disposed in the insulator, with a front end thereof exposed outside from the insulator, a ground electrode having a fixed end portion fixed to the metal shell and a free end portion located at a predetermined gap apart from the center electrode, and a coating part formed of noble metal or noble metal alloy so as to cover at least a region of an inner surface of the ground electrode from a first intersection to a second intersection, where the first intersection is an intersection at which an imaginary line extending from an outer circumference of the center electrode intersects the ground; and the second intersection is an intersection at which an imaginary plane extending through a midpoint of the predetermined gap in parallel with the front end intersects the ground electrode.
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公开(公告)号：US20160294163A1
公开(公告)日：2016-10-06
申请号：US15072820
申请日：2016-03-17
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Yuichi YAMADA , Takuya KAWADE
Abstract: An ignition plug having a ground electrode that includes a base material layer and an erosion-resistant layer having a thermal conductivity of 40 w/m·K or more. The erosion-resistant layer extends at least from the center-electrode-facing portion to a location closer to the fixed end than a front end of the center electrode and 0.2 mm≦thickness t1 of the erosion-resistant layer≦thickness T of the ground electrode 30−0.6 mm is satisfied.
Abstract translation: 一种火花塞，其具有包括基材层的接地电极和导热率为40w / m·K以上的耐腐蚀层。 抗侵蚀层至少从中心电极相对部分延伸到比中心电极的前端更靠近固定端的位置，并且抗侵蚀层的0.2mm≤厚度t1≤地面的厚度T 满足电极30-0.6mm。
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Patent Agency Ranking
公开(公告)号：US20160202226A1
公开(公告)日：2016-07-14
申请号：US14991017
申请日：2016-01-08
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Kunihiko YONEZU , Takehiro OBA , Hisaharu NISHIO , Ginjiro ITO , Yuichi YAMADA
CPC classification number: G01N33/0036 , F01N13/008 , F02M35/10373
Abstract: A sensor includes a detector element, a connection terminal, and a separator. The contacting portion is in contact with a conductive member so as to overlap the conductive member in a thickness direction, which is a direction of thickness of the detector element between the principal surfaces. The separator includes an element accommodation space that accommodates a portion of an element contact portion and an element back portion, and a partition wall that separates the element accommodation space from a terminal accommodation space that accommodates the contacting portion and a portion of the conductive member and that is adjacent to the element accommodation space in the thickness direction. A frame main body is disposed in an element-side region, which is a region on an element-accommodation-space side in the thickness direction in a region obtained by extending the terminal accommodation space toward the front side in the axial direction.
Abstract translation: 传感器包括检测器元件，连接端子和分离器。 接触部分与导电部件接触，以便在厚度方向上与导电部件重叠，厚度方向是检测器元件在主表面之间的厚度方向。 分离器包括容纳元件接触部分和元件后部的一部分的元件容纳空间，以及分隔壁，其将元件容置空间与容纳接触部分的端子容纳空间和导电构件的一部分分离， 其在厚度方向上与元件容纳空间相邻。 框架主体设置在通过使端子容纳空间沿轴向朝向前侧延伸而获得的区域中，该元件侧区域是在厚度方向上的元件容纳空间侧的区域。
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公开(公告)号：US20160202144A1
公开(公告)日：2016-07-14
申请号：US14991572
申请日：2016-01-08
Applicant: NGK Spark Plug Co., LTD.
Inventor： Takehiro OBA , Yuichi YAMADA , Kunihiko YONEZU
IPC: G01M15/02 , G01N27/409 , F02D41/14 , G01N27/41
CPC classification number: G01M15/02 , F02D41/1454 , G01N27/407 , G01N27/409 , G01N27/41
Abstract: A sensor includes: a detection element; a separator including an insertion portion into which a rear side of the detection element is inserted, and a plurality of terminal housing portions that are disposed surrounding a circumference of the insertion portion around an axial direction, and extend in the axial direction; and a connection terminal that is electrically connected to an electrical connection terminal portion to form a current path. The connection terminal includes a frame body portion and an element contact portion. The sensor further includes a first regulation portion that is located at a position closer to the detection element relative to the frame body portion, in a direction in which a first main surface and a second main surface oppose each other, and regulates the movement of the frame body portion in a direction approaching the detection element.
Abstract translation: 传感器包括：检测元件; 分离器，其包括插入所述检测元件的后侧的插入部，以及多个端子收纳部，所述多个端子收纳部围绕所述插入部的周围围绕轴向设置，并且沿所述轴向延伸; 以及电连接到电连接端子部分以形成电流路径的连接端子。 连接端子包括框架主体部分和元件接触部分。 传感器还包括第一调节部分，其位于第一主表面和第二主表面彼此相对的方向上相对于框架主体部分位于更靠近检测元件的位置，并且调节 在接近检测元件的方向上的框体部分。
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公开(公告)号：US20150180215A1
公开(公告)日：2015-06-25
申请号：US14582801
申请日：2014-12-24
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tadatoshi FUJINO , Kenji BAN , Yuichi YAMADA
IPC: H01T13/39
Abstract: A sparkplug includes: an insulator with an axial hole extending along an axial line; a metal shell covering the insulator; and a shelf part inside the metal shell. The insulator includes a second column part formed in the front end side of a tapering part. When a volume surrounded by a first plane that passes through the front end of the shelf part of the metal shell and is orthogonal to the axial line, a curved surface extending from an outer circumference of the second column part, and an outer circumferential surface of the insulator is defined as A, and a volume surrounded by the first plane, the curved surface, a second plane that passes through the front end of the metal shell and is orthogonal to the axial line, and the axial hole of the insulator is defined as B, a relational expression 0.9≦A/B≦2.4 is satisfied.
Abstract translation: 火花塞包括：具有沿轴线延伸的轴向孔的绝缘体; 覆盖绝缘体的金属壳; 和金属外壳内的搁板部分。 绝缘体包括形成在锥形部的前端侧的第二柱部。 当通过第一平面包围的体积通过金属壳的搁架部分的前端并且与轴线正交时，从第二柱部分的外圆周延伸的弯曲表面和 绝缘体被定义为A，由第一平面，弯曲表面，穿过金属壳的前端并与轴线正交并与绝缘体正交的第二平面所围绕的体积和绝缘体的轴向孔被限定 作为B，满足关系表达式0.9＆nlE; A / B＆nlE; 2.4。
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公开(公告)号：US20140305188A1
公开(公告)日：2014-10-16
申请号：US14252073
申请日：2014-04-14
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Makoto KUME , Shingo ITO , Daisuke TAHIRA , Takehiro OBA , Yuichi YAMADA
IPC: G01N33/00
CPC classification number: G01N33/0009 , G01N27/4077
Abstract: A protector (160) is inserted into a metallic shell (110) such that at least a portion of each gas introduction hole (167) is located on the base end side with respect to the forward end (110b) of the metallic shell. The metallic shell has a gas introduction space S2 defined by a forward-end-side inner surface (113b) of the metallic shell and an outer surface (160d) of the protector and which guides a gas-to-be-detected (exhaust gas G) from a region on the forward end side of the metallic shell into the gas introduction holes of the protector. The base end of the forward end portion (121) of the detection element (120) is located on the base end side with respect to the forward end (167b) of each gas introduction hole, and the forward end of the forward end portion is located on the forward end side with respect to the base end (167c) of each gas introduction hole.
Abstract translation: 保护器（160）插入到金属壳体（110）中，使得每个气体引入孔（167）的至少一部分相对于金属壳体的前端（110b）位于基端侧。 金属壳具有由金属壳的前端侧内表面（113b）和保护器的外表面（160d）限定的气体引入空间S2，并且引导气体被检测（废气 G）从金属壳的前端侧的区域进入保护器的气体导入孔。 检测元件（120）的前端部（121）的基端相对于各气体导入孔的前端（167b）位于基端侧，前端部的前端为 位于相对于每个气体导入孔的基端（167c）的前端侧。
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公开(公告)号：US20140260531A1
公开(公告)日：2014-09-18
申请号：US14202820
申请日：2014-03-10
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takehiro OBA , Yuichi YAMADA , Shingo ITO , Makoto KUME
IPC: G01N33/00
CPC classification number: G01N27/4078
Abstract: A gas sensor includes a sensor element having electrode take-out portions; a tubular separator having a flange portion, surrounding the electrode take-out portions, and spaced from a metallic shell; a tubular outer sleeve covering the separator, connected to the metallic shell, and having an inward convex portion that contacts the rearward-facing surface of the separator and restricts rearward movement of the separator; a seal member disposed on the rear of the separator and accommodated in a rear portion of the outer sleeve such that it is spaced from the separator; and an annular retainer fixed to the outer sleeve and in contact with a contact surface which forms at least a portion of the forward-facing surface of the flange portion. The separator has a rotation restriction surface for restricting its rotation in the circumferential direction, and the retainer has an engagement surface which contacts the rotation restriction surface.
Abstract translation: 气体传感器包括具有电极取出部分的传感器元件; 管状分离器，其具有围绕电极取出部分并与金属壳间隔开的凸缘部分; 覆盖隔板的管状外套筒，连接到金属外壳，并且具有接触分离器的后向表面的向内凸出部分，并限制分离器的向后运动; 密封构件，其设置在所述隔板的后部并且容纳在所述外套筒的后部中，使得其与所述隔板隔开; 以及固定到所述外套筒并与形成所述凸缘部分的朝前表面的至少一部分的接触表面接触的环形保持器。 隔板具有用于限制其在圆周方向上的旋转的旋转限制表面，并且保持器具有接触旋转限制表面的接合表面。
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