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公开(公告)号：US10801908B2
公开(公告)日：2020-10-13
申请号：US16086105
申请日：2016-12-08
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Yusuke Fuji , Tatsunori Yamada , Daiki Goto , Junki Iwabuchi
Abstract: A pressure sensor including: a cylindrical casing extending in an axial direction; a diaphragm joined to the distal end side of the casing, extending in a direction intersecting the axis of the casing and deforming in accordance with pressure received on the distal end side; and a sensor section disposed inside the casing and outputting an electric signal corresponding to the deformation of the diaphragm. The diaphragm is provided with a plate-shaped base part and three or more protruding parts protruding from the distal end side surface of the base part toward the distal end side and set apart from each other. The relationships 0.05≤H≤2.5T and 0.05≤(S2/S1)≤0.8 are satisfied, where T (thickness), H (length), S1 (area of base distal end surface) and S2 (total area of protruding distal end surfaces) are as defined herein.
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公开(公告)号：US10578506B2
公开(公告)日：2020-03-03
申请号：US15743744
申请日：2016-07-08
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tatsunori Yamada , Shunsuke Tsuga , Yusuke Fuji , Junki Iwabuchi , Daiki Goto
Abstract: A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)≤0.25 is satisfied.
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公开(公告)号：US08853930B2
公开(公告)日：2014-10-07
申请号：US14154215
申请日：2014-01-14
Applicant: NGK Spark Plug Co., Ltd.
Inventor： Tatsunori Yamada , Naofumi Yamamura , Kenji Ban
Abstract: An ignition plug that reliably restrains generation of corona discharge for enhancing accuracy in detection of ionic current and method of manufacturing same. The ignition plug is configured such that a metallic shell and an insulator are fixed together by means of a crimped portion provided at a rear end portion of the metallic shell and bent radially inward. An electrically insulative filling member fills a space formed between the crimped portion and the insulator. The filling member covers at least a portion of an outer circumferential surface of a rear trunk portion of the insulator along the entire circumference and the entirety of a rear end surface of the metallic shell, which is a portion of the outer surface of the crimped portion and is visible from the rear side with respect to the direction of an axial line CL1.
Abstract translation: 一种可靠地抑制电晕放电产生以提高离子电流检测精度的火花塞及其制造方法。 火花塞被构造成使得金属壳和绝缘体通过设置在金属壳的后端部并径向向内弯曲的卷曲部分固定在一起。 电绝缘填充构件填充形成在压接部分和绝缘体之间的空间。 填充构件覆盖绝缘子的后主体部分的外周面的至少一部分沿着整个圆周和金属壳的后端表面的整体，该后端表面是卷曲部分的外表面的一部分 并且从相对于轴线CL1的方向的后侧可见。
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公开(公告)号：US09306374B2
公开(公告)日：2016-04-05
申请号：US14419313
申请日：2013-08-09
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Katsutoshi Nakayama , Tomokatsu Kashima , Tatsunori Yamada
Abstract: A spark plug having a metal shell, center electrode and a ground electrode. The ground electrode includes an electrode base portion extending from a front end portion of the metal shell toward the front, a bent portion connected at one end thereof to a front end of the electrode base portion and an electrode distal end portion extending from the other end of the bent portion and forming a spark discharge gap with a center electrode. The ground electrode has a base material and a coating layer applied to the base material. The coating layer is formed on at least a front end face and an outer circumferential surface other than a center-electrode-side surface of the electrode distal end portion of the ground electrode. The base material of the ground electrode is exposed at least at a part of the electrode base portion.
Abstract translation: 具有金属壳，中心电极和接地电极的火花塞。 接地电极包括从金属壳的前端部朝向前方延伸的电极基部，在其一端连接到电极基部的前端的弯曲部分和从另一端延伸的电极远端部 并与中心电极形成火花放电间隙。 接地电极具有基材和涂覆在基材上的涂层。 在除了接地电极的电极前端部的中心电极侧面以外的至少前端面和外周面上形成有涂层。 至少在电极基部的一部分露出接地电极的基材。
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公开(公告)号：US09246313B2
公开(公告)日：2016-01-26
申请号：US14087412
申请日：2013-11-22
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Kenji Ban , Tatsunori Yamada , Tomokatsu Kashima , Katsutoshi Nakayama
CPC classification number: H01T15/00 , F02P3/01 , F02P3/04 , F02P23/04 , F02P23/045
Abstract: An ignition system includes an ignition plug, a discharge power supply for applying a high voltage to the gap of the ignition plug, a high-frequency power supply for supplying a high-frequency current to the gap, a matching unit provided between the ignition plug and the high-frequency power supply, and a mixer through which currents output from the two power supplies flow. An oscillation frequency fs (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is generated and an oscillation frequency fo (Hz) which maximizes the current flowing between the matching unit and the mixer when spark discharge is not generated satisfy a relation fs/fo≧0.85. Thus, a current whose oscillation frequency is equal to the oscillation frequency fs flows between the matching unit and the mixer when spark discharge is not generated.
Abstract translation: 点火系统包括火花塞，用于向火花塞的间隙施加高电压的放电电源，用于向间隙提供高频电流的高频电源;设置在火花塞之间的匹配单元 和高频电源以及从两个电源输出的电流流过的混频器。 当不产生火花放电时，使匹配单元和混合器之间流动的电流最大化的振荡频率fs（Hz），以及当不产生火花放电时使匹配单元和混合器之间的电流最大化的振荡频率fo（Hz） 满足关系fs /fo≥0.85。 因此，当不产生火花放电时，其振荡频率等于振荡频率fs的电流在匹配单元和混合器之间流动。
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Patent Agency Ranking
公开(公告)号：US09124075B2
公开(公告)日：2015-09-01
申请号：US14173867
申请日：2014-02-06
Applicant: NGK Spark Plug Co., Ltd.
Inventor： Tatsunori Yamada , Kenji Ban , Tomokatsu Kashima
CPC classification number: H01T13/32 , F02P3/0435 , H01T13/20
Abstract: An ignition system that sufficiently utilizes the energy output from a power supply, to thereby realize excellent ignition performance. The ignition system includes an ignition plug having a spark discharge gap formed between a center electrode and a ground electrode, and a power supply for supplying electric energy to the spark discharge gap. Electric energy output from the power supply for producing spark discharge of one unit is set to 100 mJ or greater. S1≧[{−30 (mm−1)×G1+60}/100]×S2 and G1
Abstract translation: 一种充分利用从电源输出的能量的点火系统，从而实现优异的点火性能。 点火系统包括具有形成在中心电极和接地电极之间的火花放电间隙的火花塞和用于向火花放电间隙提供电能的电源。 用于产生一个单元的火花放电的电源的电能输出设定为100mJ以上。 S1≥[{ - 30（mm-1）×G1 + 60} / 100]×S2和G1 <2.0，其中G1表示火花放电的尺寸（mm），S1表示由 通过从中心电极的投影区域移除突出区域与接地电极的突出区域重叠的区域，S2表示由中心电极的突出区域限定的面积（mm2）而获得的区域。
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公开(公告)号：US20140361676A1
公开(公告)日：2014-12-11
申请号：US14299026
申请日：2014-06-09
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Kenji Ban , Tatsunori Yamada , Tomokatsu Kashima , Katsutoshi Nakayama
Abstract: A ground electrode includes a main body portion and a projecting portion having a width smaller than a width of the main body portion. A spark discharge gap is formed between a discharging surface of the projecting portion and a front end surface of a center electrode. When the front end surface and the ground electrode are projected on a first plane, at least a part of the projection region of the projecting portion overlaps the projection region of the front end surface. A width Le (mm), a width Lc (mm), a cross-sectional area Sg (mm2), a cross-sectional area Sc (mm2), an angle θ1(°), an angle θ2(°), an angle θ3(°), and an angle θ4(°) satisfy expressions Le
Abstract translation: 接地电极包括主体部分和具有小于主体部分的宽度的宽度的突出部分。 在突出部分的排出表面和中心电极的前端表面之间形成火花放电间隙。 当前端面和接地电极突出在第一平面上时，突出部分的突出区域的至少一部分与前端面的突出区域重叠。 宽度Le（mm），宽度Lc（mm），横截面积Sg（mm2），横截面积Sc（mm2），角度θ（1），角度θ ），角度和角度; 3（°）和角度角; 4（°）满足表达式Le
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公开(公告)号：US20140210336A1
公开(公告)日：2014-07-31
申请号：US14154215
申请日：2014-01-14
Applicant: NGK Spark Plug Co., Ltd.
Inventor： Tatsunori Yamada , Naofumi Yamamura , Kenji Ban
Abstract: An ignition plug that reliably restrains generation of corona discharge for enhancing accuracy in detection of ionic current and method of manufacturing same. The ignition plug is configured such that a metallic shell and an insulator are fixed together by means of a crimped portion provided at a rear end portion of the metallic shell and bent radially inward. An electrically insulative filling member fills a space formed between the crimped portion and the insulator. The filling member covers at least a portion of an outer circumferential surface of a rear trunk portion of the insulator along the entire circumference and the entirety of a rear end surface of the metallic shell, which is a portion of the outer surface of the crimped portion and is visible from the rear side with respect to the direction of an axial line CL1.
Abstract translation: 一种可靠地抑制电晕放电产生以提高离子电流检测精度的火花塞及其制造方法。 火花塞被构造成使得金属壳和绝缘体通过设置在金属壳的后端部并径向向内弯曲的卷曲部分固定在一起。 电绝缘填充构件填充形成在压接部分和绝缘体之间的空间。 填充构件覆盖绝缘子的后主体部分的外周面的至少一部分沿着整个圆周和金属壳的后端表面的整体，该后端表面是卷曲部分的外表面的一部分 并且从相对于轴线CL1的方向的后侧可见。
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公开(公告)号：US09829404B2
公开(公告)日：2017-11-28
申请号：US15092253
申请日：2016-04-06
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tatsunori Yamada , Junki Iwabuchi
CPC classification number: G01L7/082 , F23Q2007/005 , G01L19/145 , G01M15/08
Abstract: A pressure sensor includes a tubular housing; a diaphragm which is joined to one end portion of the housing through a fusion zone; and a sensor element which is disposed in the housing and to which pressure received by the diaphragm is transmitted. As viewed in a section which contains the center axis of the housing, a pair of the fusion zones exist, and each of the fusion zones is formed in such an inclined manner that its distance from the center axis increases as it extends from the outer surface of the diaphragm toward the other-end-portion side of the housing.
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公开(公告)号：US09735552B2
公开(公告)日：2017-08-15
申请号：US14538262
申请日：2014-11-11
Applicant: NGK Spark Plug Co., LTD.
Inventor： Tatsunori Yamada , Yusuke Fuji , Tomoyuki Igarashi , Kei Takahashi
IPC: H01T13/32
CPC classification number: H01T13/32
Abstract: A spark plug includes: an insulator having an axial hole; a conductive member disposed around the insulator; a center electrode disposed inside the axial hole, having a bar shape extending in the axial direction, and located on a rear end side with respect to a front end of the conductive member; a ground electrode forming a spark gap between the ground electrode and the center electrode; and a connection part including a plurality of spokes extending in a radial direction whose inner ends are connected to the ground electrode, and connecting the conductive member to the ground electrode. The connection part includes a joint part that is jointed to an inner surface of the conductive member, and the ground electrode has at least one of a notch and a groove at a position that is different from a position connected to the spokes in a circumferential direction.
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