-
公开(公告)号：US20160218487A1
公开(公告)日：2016-07-28
申请号：US15025675
申请日：2014-10-10
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tsutomu KOBAYASHI , Keiji OZEKI
IPC: H01T13/20
Abstract: A packing is arranged between an outer-diameter-contracted portion of an insulator and an inner-diameter-contracted portion of a metal shell. In a contact portion of the packing and the insulator, a position at a most front end side is set as a first position. In a surface of a nose portion disposed at a front end side of the outer-diameter-contracted portion of the insulator, a position where a length from a front end of the insulator parallel to an axial line direction is 1 mm is set as a second position. A length between the first position and the second position parallel to the axial line direction is set as a first length. In the case where a load perpendicular to the axial line direction is applied to the second position, a ratio of stress at a surface position that is a position on a surface of the insulator to stress at the first position is set as a stress ratio. In a range of the surface position where the stress ratio is 0.8 or more to 1.15 or less, a length in a continuous range from the first position toward a front end side parallel to the axial line direction is set as a second length. A ratio of the second length to the first length is 0.7 or more.
Abstract translation: 在绝缘体的外径缩小部分和金属壳的内径缩小部分之间布置有填料。 在密封件和绝缘体的接触部分中，将最前端侧的位置设定为第一位置。 在设置在绝缘体的外径缩小部分的前端侧的鼻部的表面中，将绝缘体前端与轴线方向平行的长度为1mm的位置设定为 第二名 将第一位置与平行于轴线方向的第二位置之间的长度设定为第一长度。 在垂直于轴线方向的载荷施加到第二位置的情况下，将作为绝缘体的表面上的位置的表面位置处的应力与在第一位置处的应力的应力比设定为应力比。 在应力比为0.8以上至1.15以下的表面位置的范围内，将从第一位置朝向与轴线方向平行的前端侧的连续范围内的长度设定为第二长度。 第二长度与第一长度的比率为0.7以上。
-
公开(公告)号：US09401585B2
公开(公告)日：2016-07-26
申请号：US14613721
申请日：2015-02-04
Applicant: BorgWarner Ludwigsburg GmbH
Inventor： Tom Achtstätter , Volker Dezius , Johannes Hasenkamp , Heiko Schrader
Abstract: A corona ignition device for igniting fuel in an internal combustion engine by means of a corona discharge. The corona ignition device comprises a central electrode, an insulator into which the central electrode is plugged, a housing into which the insulator is plugged, a coil body onto which a coil from a winding wire is wound, which coil is connected to the central electrode, and a contact element that is located in a recess of the coil body and contacts the wire. It is provided that the contact element has a slot that runs in the longitudinal direction of the coil body, and the coil body has an opening in a side wall of the recess, wherein the wire is fed through the opening in the side wall of the recess and is held in the slot of the contact element.
Abstract translation: 一种用于通过电晕放电点燃内燃机中的燃料的电晕点火装置。 电晕点火装置包括中心电极，中心电极插入的绝缘体，绝缘子插入的绝缘体的外壳，缠绕有来自绕组线的线圈的线圈体，该线圈连接到中心电极 以及位于线圈体的凹部中并接触线的接触元件。 其特征在于，所述接触元件具有在所述线圈体的长度方向上延伸的槽，所述线圈体在所述凹部的侧壁上具有开口，所述线通过所述槽的侧壁的开口 并且被保持在接触元件的槽中。
-
公开(公告)号：US09287685B2
公开(公告)日：2016-03-15
申请号：US14651040
申请日：2013-12-10
Applicant: DENSO CORPORATION
Inventor： Takanobu Aochi , Takayuki Inohara , Shinichi Okabe , Masamichi Shibata , Kaori Doi
Abstract: A spark plug for an internal combustion engine has a housing, an insulator, a center electrode, a ground electrode, and a tip projecting portion. The tip projecting portion has an air guiding surface. In the spark plug, when viewed from a plug axial direction, a straight line that connects the center, in the plug circumferential direction, of the erect portion of the ground electrode and a center point of the center electrode is a straight line. An extension line of the air guiding surface is a straight line. A distance between an intersection, between the straight line and the straight line, and the center point of the center electrode is a (positive towards the side moving away from the erect portion. An angle formed by the straight line and the straight line is b. A diameter of the housing is D. At this time, all of b≧−67.8×(a/D)+27.4, b≦−123.7×(a/D)+64.5, −0.4≦(a/D)≦0.4, and 0°
Abstract translation: 用于内燃机的火花塞具有壳体，绝缘体，中心电极，接地电极和尖端突出部分。 尖端突出部具有空气引导面。 在火花塞中，当从插头轴向观察时，将接地电极的直立部分的中心与插塞圆周方向连接的直线与中心电极的中心点成直线。 导气面的延长线是直线。 在直线与直线之间的交点之间的距离和中心电极的中心点之间的距离为（朝着直立部分移动的一侧为正），由直线和直线形成的角度为b （a / D）+27.4，b＆nlE; -123.7×（a / D）+64.5，-0.4＆nlE;（a / D） ＆nlE; 0.4和0°
-
公开(公告)号：US09276384B2
公开(公告)日：2016-03-01
申请号：US14437663
申请日：2013-06-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tsutomu Kobayashi
Abstract: An ignition plug includes a tubular ceramic insulator and a metallic shell having a protrusion protruding radially inward. The ceramic insulator has an engagement portion which is engaged with a receiving surface of the protrusion and an intermediate trunk portion extending rearward from the rear end of the engagement portion. A≦1.70 and B ≧1.20 are satisfied, where A is the thickness (mm) of the metallic shell along a direction which passes through the center of the receiving surface and is orthogonal to the axial line on a cross section including the axial line, and B is the minimum thickness (mm) of the metallic shell 3 at the tube portion along the direction orthogonal to the axial line.
Abstract translation: 火花塞包括管状陶瓷绝缘体和具有径向向内突出的突起的金属壳。 陶瓷绝缘体具有与突起的接收表面接合的接合部分和从接合部分的后端向后延伸的中间主体部分。 A＆NlE; 1.70和B≥1.20，其中A是金属壳沿着穿过接收表面的中心的方向并且在包括轴线的横截面上与轴线正交的厚度（mm） B是金属壳3在与轴线正交的方向的管部的最小厚度（mm）。
-
公开(公告)号：US09276383B2
公开(公告)日：2016-03-01
申请号：US14412076
申请日：2013-07-16
Applicant: NGK Spark Plug Co., LTD.
Inventor： Keiji Ozeki , Tomoaki Kato , Naoyuki Mukoyama , Tsutomu Kobayashi
Abstract: A spark plug includes a ceramic insulator having an engagement portion, and a metallic shell provided around the ceramic insulator and having a protrusion. The protrusion has a diameter-decreasing portion, which seats on the engagement portion via an annular seat packing. On a cross section including an axial line, θs>θp is satisfied, where θp represents an acute angle (°) between a straight line orthogonal to the axial line and the contour of the engagement portion, and θs represents an acute angle (°) between a straight line orthogonal to the axial line and the contour of the diameter-decreasing portion. In the aforementioned cross section, Hvo>Hvi is satisfied, where Hvo represents the Vickers hardness (Hv) of the seat packing at the midpoint of a first line segment, and Hvi represents the Vickers hardness (Hv) of the seat packing at the midpoint of a second line segment.
Abstract translation: 火花塞包括具有接合部分的陶瓷绝缘体和设置在陶瓷绝缘体周围并具有突出部的金属壳。 该突起具有直径减小部分，该直径减小部分经由环形座垫料位于接合部分上。 在包括轴线的横截面上，对于所述轴线与所述轴线的轮廓之间的锐角（θ）和所述轴线之间的角度（°），p表示满足; s表示与轴线正交的直线与直径减小部的轮廓之间的锐角（°）。 在上述横截面中，Hvo> Hvi满足，其中Hvo表示在第一线段的中点处的座椅密封件的维氏硬度（Hv），Hvi表示座垫在中点处的维氏硬度（Hv） 的第二线段。
-
Patent Agency Ranking
公开(公告)号：US09236716B2
公开(公告)日：2016-01-12
申请号：US14552855
申请日：2014-11-25
Applicant: NGK Spark Plug Co., Ltd.
Inventor： Hironobu Mizutani , Kei Takahashi
Abstract: An ignition plug having a center electrode, a grounding electrode, an insulator, and a metal shell. The center electrode is held by the insulator, and the insulator is held by metal shell. A cavity is formed between the grounding electrode and the center electrode. The grounding electrode is joined to the inner wall surface of the metal shell via a melting portion. In the melting portion, in a predetermined cutting surface MS including a melting deepest point DP and a central axis CX, a percentage ratio MDD of a melting depth MD of the melting portion with respect to a thickness of the grounding electrode is 5% or more, and an area Sm of a portion included in an outer circumferential side of the metal shell is 10% or more of the entire area S.
Abstract translation: 具有中心电极，接地电极，绝缘体和金属壳的火花塞。 中心电极由绝缘体保持，绝缘体由金属壳保持。 在接地电极和中心电极之间形成空腔。 接地电极通过熔化部分与金属壳体的内壁表面接合。 在熔融部分中，在包括熔融深度点DP和中心轴线CX的预定切割表面MS中，熔化部分的熔化深度MD相对于接地电极的厚度的百分比MDD为5％以上 金属壳的外周侧的部分的面积Sm为整个面积S的10％以上。
-
公开(公告)号：US20160006219A1
公开(公告)日：2016-01-07
申请号：US14790013
申请日：2015-07-02
Applicant: DENSO CORPORATION
Inventor： Masamichi SHIBATA
IPC: H01T13/20
Abstract: A spark plug includes a tubular housing, a tubular insulator retained in the housing, a center electrode secured in the insulator, and a ground electrode provided at a distal end of the housing. The housing has a seat portion formed on its inner periphery. The insulator has a distal portion, a proximal portion, and a shoulder formed on an outer periphery of the insulator between the distal and proximal portions. The shoulder is arranged to seat on the seat portion of the housing with an annular packing interposed therebetween. On an inner peripheral surface of the seat portion of the housing which faces an outer peripheral surface of the distal portion of the shoulder, there are formed uneven portions that are arranged in a circumferential direction of the spark plug. Each of the uneven portions consists of a protrusion and a recess that adjoin each other in the circumferential direction.
Abstract translation: 火花塞包括管状壳体，保持在壳体中的管状绝缘体，固定在绝缘体中的中心电极和设置在壳体的远端处的接地电极。 壳体具有形成在其内周上的座部。 绝缘体具有远端部分，近端部分和形成在远端部分和近端部分之间的绝缘体的外周上的肩部。 肩部布置成在壳体的座部上安置有插入其间的环形填料。 在壳体的座部的与肩部的远端部的外周面相对的内周面上形成有沿火花塞的圆周方向配置的凹凸部。 每个不平坦部分由在周向彼此相邻的突起和凹部组成。
-
公开(公告)号：US20150337792A1
公开(公告)日：2015-11-26
申请号：US14718783
申请日：2015-05-21
Applicant: NIPPON SOKEN, INC. , DENSO CORPORATION
Inventor： Takanobu AOCHI , Masamichi SHIBATA , Noriaki NISHIO , Kaori DOI
CPC classification number: F02P15/001 , H01T13/02 , H01T13/20
Abstract: A spark plug for an internal combustion engine includes a tubular housing, a tubular insulator, a center electrode, a ground electrode and a guide member. The guide member is configured to guide the flow of an air-fuel mixture in a combustion chamber of the engine to a spark gap formed between the center electrode and the ground electrode. Moreover, in the spark plug, the following dimensional relationships are satisfied: b≧−67.8×(a/D)+27.4; b≦−123.7×(a/D)+64.5; −0.4≦(a/D)≦0.4; and 0°≦b≦90°. Further, with an oblique angle θ being in the range of 0 to 30°, the following dimensional relationship is also satisfied: 0.8≦r/R≦1. Consequently, the spark plug can secure, with a simple configuration, a stable ignition capability regardless of the mounting posture of the spark plug to the engine.
Abstract translation: 用于内燃机的火花塞包括管状壳体，管状绝缘体，中心电极，接地电极和引导构件。 引导构件被构造成将发动机的燃烧室中的空气燃料混合物的流动引导到形成在中心电极和接地电极之间的火花间隙。 此外，在火花塞中，满足以下尺寸关系：b≥-67.8×（a / D）+27.4; b＆nlE; -123.7×（a / D）+64.5; -0.4＆nlE;（a / D）＆nlE; 0.4; 0°＆nlE; b＆nlE; 90°。 此外，倾斜角度和角度; 在0至30°的范围内，还满足以下尺寸关系：0.8＆nlE; r / R＆nlE; 1。 因此，无论火花塞的安装姿势如何，发动机都可以以简单的结构确保火花塞的稳定点火能力。
-
公开(公告)号：US09172214B2
公开(公告)日：2015-10-27
申请号：US14131937
申请日：2012-05-15
Applicant: Kaori Suzuki
Inventor： Kaori Suzuki
Abstract: A spark plug includes a center electrode, a ceramic insulator provided with an axial hole, a metal shell, and a ground electrode having a facing surface that faces a leading end surface of the center electrode. An annular space is formed between an outer peripheral surface of the center electrode and an inner peripheral surface of the axial hole and is opened toward a leading end side, and when C (mm) is a distance between the outer peripheral surface of the center electrode and the inner peripheral surface of the axial hole in the opening of the annular space, C≧0.2 mm is satisfied. In a cross-section which includes the axial line and is orthogonal to the center axis of the ground electrode, a contour line of lateral surfaces of the ground electrode has a curved shape convexed outward.
Abstract translation: 火花塞包括中心电极，设置有轴向孔的陶瓷绝缘体，金属壳和接地电极，具有面对中心电极的前端面的面对面。 在中心电极的外周面和轴孔的内周面之间形成有环状空间，朝向前端侧开口，当C（mm）为中心电极的外周面之间的距离 并且环形空间的开口中的轴向孔的内周表面满足C≥0.2mm。 在包括轴线并且与接地电极的中心轴线正交的横截面中，接地电极的侧面的轮廓线具有向外凸出的弯曲形状。
-
公开(公告)号：US20150295388A1
公开(公告)日：2015-10-15
申请号：US14437663
申请日：2013-06-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Tsutomu KOBAYASHI
Abstract: An ignition plug includes a tubular ceramic insulator and a metallic shell having a protrusion protruding radially inward. The ceramic insulator has an engagement portion which is engaged with a receiving surface of the protrusion and an intermediate trunk portion extending rearward from the rear end of the engagement portion. A≦1.70 and B ≧1.20 are satisfied, where A is the thickness (mm) of the metallic shell along a direction which passes through the center of the receiving surface and is orthogonal to the axial line on a cross section including the axial line and B is the minimum thickness (mm) of the metallic shell 3 at the tube portion along the direction orthogonal to the axial line.
Abstract translation: 火花塞包括管状陶瓷绝缘体和具有径向向内突出的突起的金属壳。 陶瓷绝缘体具有与突起的接收表面接合的接合部分和从接合部分的后端向后延伸的中间主体部分。 A＆NlE; 1.70和B≥1.20，其中A是金属壳沿着穿过接收表面的中心的方向并且在包括轴线和横截面的横截面上与轴线正交的厚度（mm） B是沿着与轴线正交的方向的金属壳3在管部的最小厚度（mm）。
-
-
-
-
-
-
-
-
-
Search Results
775
records
(took 0.025 seconds)
