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81. 发明授权

US10090648B1 Spark plug 有权
公开(公告)号：US10090648B1
公开(公告)日：2018-10-02
申请号：US15927533
申请日：2018-03-21
申请人： NGK SPARK PLUG CO., LTD.
发明人： Hirotaka Saito , Naoyuki Mukoyama
IPC分类号： H01T13/34 , H01T13/39 , H01T13/50 , H01T13/02
摘要： A spark plug including a bottomed tubular insulator, a tubular metal shell, a conductive layer, and a terminal. The insulator extends along an axial line from a front end side to a rear end side and is closed at a front end. The metal shell has a ledge portion that projects radially inward and locks the insulator from the front end side. The metal shell holds the insulator from an outer peripheral side. The conductive layer covers at least a part of an inner peripheral surface of a portion of the insulator which is located on the front end side with respect to a locking portion locked by the ledge portion. The terminal is electrically connected to the conductive layer and is insulated from the metal shell.

82. 发明授权

US10050417B2 Spark plug and manufacturing method thereof 有权
公开(公告)号：US10050417B2
公开(公告)日：2018-08-14
申请号：US15692254
申请日：2017-08-31
申请人： DENSO CORPORATION
发明人： Ryohei Akiyoshi , Ken Hanashi , Tomoyuki Watanabe
IPC分类号： H01T13/20 , H01T13/32 , H01T13/02 , H01T13/34 , H01T13/08 , H01T21/02
摘要： Disclosed herein is a spark plug capable of suppressing electrode consumption caused by a spark discharge and a method of manufacturing the same. A section except a welded section formed by welding a tip surface of a center electrode is defined as an unwelded section in side surfaces of a center chip, and a length of the unwelded section along a center axis of the center chip is defined as an unwelded section length. Under this definition, the welded section is formed in order for an unwelded section length in a side surface opposite to an inclination direction side of the center chip in the center chip to become longer than an unwelded section length in a side surface of the inclination direction side of the center chip in the center chip.

83. 发明授权

US09989032B2 Control device for spark ignition type internal combustion engine 有权
公开(公告)号：US09989032B2
公开(公告)日：2018-06-05
申请号：US14355046
申请日：2012-10-30
申请人： DAIHATSU MOTOR CO., LTD. , IMAGINEERING, INC.
发明人： Katsumi Uchida , Yuta Shima , Hiroaki Oi , Akira Nakajima , Takeshi Serizawa , Yuji Ikeda
IPC分类号： F02P5/00 , H01T13/02 , F02P3/02 , F02P5/04 , F02P9/00 , F02P23/04 , F02M27/04 , F02P3/04 , F02D35/02 , F02P17/12 , F02B29/04 , F02M26/05 , F02M26/23
CPC分类号： F02P5/04 , F02B29/0406 , F02D35/021 , F02M26/05 , F02M26/23 , F02M27/042 , F02P3/0407 , F02P3/0442 , F02P9/007 , F02P23/045 , F02P2017/125
摘要： To alleviate or eliminate a problem of unburned fuel discharged to the outside of a cylinder in a case in which an air fuel mixture is insufficiently combusted in a combustion chamber. During the expansion stroke in which a high voltage is applied to an ignition plug via an ignition coil, and a spark discharge is caused to occur at the ignition plug, thereby the air fuel mixture in the combustion chamber is ignited and combusted, in a case in which deterioration of combustion state is detected, a microwave electric field is created in the combustion chamber prior to an opening timing of an exhaust valve at an end stage of the expansion stroke, thereby plasma is generated and enlarged in the combustion chamber.

84. 发明授权

US09695794B2 Control device of plasma ignition apparatus and plasma ignition apparatus 有权
公开(公告)号：US09695794B2
公开(公告)日：2017-07-04
申请号：US15203911
申请日：2016-07-07
申请人： FUJITSU TEN LIMITED
发明人： Shoko Yamoto , Akio Okahara , Yusuke Masuda
IPC分类号： F02P23/04 , F02P3/01 , H01T13/02 , F02P13/00 , H01T13/04 , F02P9/00 , H01T13/06 , H01T13/40 , H01T15/00
CPC分类号： F02P23/04 , F02P3/01 , F02P9/007 , F02P13/00 , H01T13/02 , H01T13/04 , H01T13/06 , H01T13/40 , H01T15/00
摘要： A control device of a plasma ignition apparatus according to an embodiment includes a plug socket, an oscillation unit, and an amplification unit. The plug socket holds an ignition plug, and a high voltage generated by an ignition coil is transmitted to the ignition plug through the plug socket. The oscillation unit oscillates a high frequency. The amplification unit amplifies the high frequency oscillated by the oscillation unit. The oscillation unit is arranged outside of the plug socket and the amplification unit is arranged inside of the plug socket.

85. 发明授权

US09377001B2 Spark plug for internal combustion engine 有权
标题翻译：内燃机火花塞
公开(公告)号：US09377001B2
公开(公告)日：2016-06-28
申请号：US14718453
申请日：2015-05-21
申请人： NIPPON SOKEN, INC. , DENSO CORPORATION
发明人： Takanobu Aochi , Kaori Doi , Masamichi Shibata , Noriaki Nishio
IPC分类号： H01T13/02 , F02P15/00
CPC分类号： F02P15/001 , H01T1/20 , H01T13/02
摘要： A spark plug has a housing, a pair of center and ground electrodes configured to define a spark gap therebetween, a guide member and an oblique surface. The ground electrode has a standing portion that stands distalward from a distal end of the housing. The guide member is configured to guide the flow of an air-fuel mixture in a combustion chamber of an engine to the spark gap. The guide member protrudes distalward from the distal end of the housing at a different circumferential position from the ground electrode. The oblique surface is formed at the distal end of the housing so as to be circumferentially positioned between the guide member and the standing portion of the ground electrode. The oblique surface is oblique to the axial direction of the spark plug so that the radial distance between the oblique surface and the center electrode decreases in the distalward direction.
摘要翻译：火花塞具有壳体，一对中心和接地电极，其构造成在其间限定火花隙，引导构件和倾斜表面。接地电极具有从壳体的远端远离的站立部分。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火花隙。引导构件在与接地电极不同的圆周位置处从壳体的远端向远侧突出。倾斜表面形成在壳体的远端处，以便周向地定位在引导构件和接地电极的竖立部分之间。斜面相对于火花塞的轴向倾斜，使得倾斜表面与中心电极之间的径向距离在远离方向上减小。

86. 发明申请

US20150337792A1 SPARK PLUG FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：火花塞用于内燃机
公开(公告)号：US20150337792A1
公开(公告)日：2015-11-26
申请号：US14718783
申请日：2015-05-21
申请人： NIPPON SOKEN, INC. , DENSO CORPORATION
发明人： Takanobu AOCHI , Masamichi SHIBATA , Noriaki NISHIO , Kaori DOI
IPC分类号： F02P15/00 , H01T13/02
CPC分类号： F02P15/001 , H01T13/02 , H01T13/20
摘要： 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.
摘要翻译：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。

87. 发明授权

US08928213B2 Spark plug for internal-combustion engine 有权
标题翻译：内燃机火花塞
公开(公告)号：US08928213B2
公开(公告)日：2015-01-06
申请号：US14300624
申请日：2014-06-10
申请人： Denso Corporation
发明人： Yuki Murayama
IPC分类号： H01T21/02 , H01T13/02 , H01T13/20
CPC分类号： H01T13/32
摘要： A spark plug for an internal-combustion engine. The spark plug includes a central electrode, an insulator that holds the central electrode inside, a housing that holds the insulator inside, a ground electrode that forms a spark gap with the central electrode. The ground electrode includes a ground base member connected to the housing, and a ground protrusion protruding from a confronting face of the ground base member confronting the central electrode. The ground protrusion has a diameter of 0.9 to 1.4 mm. The spark plug is configured to satisfy θ≧−53R+49, where R [mm] is a curvature radius of a base member corner and θ[degrees] is an angle formed by a shortest connecting line between the base member corner and a protrusion corner and a plane perpendicular to an axial direction of the ground protrusion.
摘要翻译：内燃机火花塞。火花塞包括中心电极，将中心电极保持在内部的绝缘体，将绝缘体保持在内部的壳体，与中心电极形成火花隙的接地电极。接地电极包括连接到壳体的接地基座构件和从面对中心电极的接地基座的相对面突出的接地突起。接地突起的直径为0.9〜1.4mm。火花塞被配置为满足以下要求：≧-53R + 49，其中R [mm]是基座部件角部的曲率半径，θ是由基部件角部和突起角和垂直于接地突起的轴向的平面。

88. 发明授权

US08915227B2 Spark plug of an internal combustion engine 有权
标题翻译：内燃机火花塞
公开(公告)号：US08915227B2
公开(公告)日：2014-12-23
申请号：US13501900
申请日：2010-10-13
申请人： In Tae Johng
发明人： In Tae Johng
IPC分类号： H01T13/02 , H01T13/54 , F02P13/00 , F02P9/00
CPC分类号： H01T13/54 , F02P9/007 , F02P13/00
摘要： A spark plug of internal combustion engine is disclosed. The spark plug includes: a main body having main thread on lower outer side; an insulator mounted in a hollow portion of the main body; a ground electrode to correspond to a central electrode extending from the lower end of the terminal rod; a primary combustion chamber forming shell having female thread to be screw-coupled with the main thread, male thread to fix a combustion chamber, and an ejection hole; the primary combustion chamber formed between the main body and the primary combustion chamber forming shell and having changeable volume; and a heat exchange member disposed between the main body and the insulator to exchange heat caused by flame and to block leak of volatile gas; wherein the main ejection hole has a single main ejection hole and at least two auxiliary ejection holes formed around the main ejection hole.
摘要翻译：公开了内燃机火花塞。火花塞包括：主体，其在下外侧具有主螺纹; 安装在所述主体的中空部分中的绝缘体; 接地电极对应于从端子棒的下端延伸的中心电极; 主燃烧室形成壳体，具有与主螺纹螺纹连接的阴螺纹，用于固定燃烧室的阳螺纹和喷射孔; 主燃烧室形成在主体和主燃烧室形成壳体之间并具有可变容积; 以及热交换构件，其设置在主体和绝缘体之间以交换由火焰引起的热量并阻止挥发性气体的泄漏; 其中主喷射孔具有单个主喷射孔和形成在主喷射孔周围的至少两个辅助喷射孔。

89. 发明授权

US08853927B2 Spark plug, and main metal fitting for spark plug 有权
标题翻译：火花塞，火花塞主金属配件
公开(公告)号：US08853927B2
公开(公告)日：2014-10-07
申请号：US13814982
申请日：2011-04-12
申请人： Hiroaki Nasu , Kazuhiro Kodama
发明人： Hiroaki Nasu , Kazuhiro Kodama
IPC分类号： H01T13/20 , H01T13/32 , H01T13/02 , F02P13/00
CPC分类号： H01T13/02 , F02P13/00 , H01T13/20 , H01T13/32 , Y10T428/12611
摘要： A spark plug superior in salt corrosion resistance and stress corrosion cracking resistance is provided. The spark plug includes a metallic shell coated with a composite layer which includes a nickel plating layer and a chromate layer formed on the nickel plating layer. The spark plug is characterized in that the nickel plating layer has a thickness A which satisfies a relational expression 3 μm≦A≦15 μm and that the chromate layer has a thickness B which satisfies a relational expression 2 nm≦B≦45 nm.
摘要翻译：提供了耐盐腐蚀性和耐应力腐蚀开裂性优异的火花塞。火花塞包括涂覆有复合层的金属壳，其包括镀镍层和形成在镀镍层上的铬酸盐层。该火花塞的特征在于，镍镀层的厚度A满足关系式3μm＆lt; NlE; A＆nlE;15μm，并且铬酸盐层的厚度B满足关系式2nm＆nlE; B＆nlE; 45nm。

90. 发明授权

US08710725B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US08710725B2
公开(公告)日：2014-04-29
申请号：US13876497
申请日：2011-09-27
申请人： Haruki Yoshida , Toshitaka Honda
发明人： Haruki Yoshida , Toshitaka Honda
IPC分类号： H01T13/02
CPC分类号： H01T13/20 , H01T13/34
摘要： A spark plug having improved load life performance and fixing strength of a metallic terminal to an insulator, and which reduces the incidence of breakage of the insulator when the metallic terminal is inserted into the axial hole of the insulator. The spark plug of the present invention is characterized in that the distance ((B−A)/2) between the forward end portion of the metallic terminal and the wall surface of an intermediate diameter portion of the axial hole of the insulator falls within a range of 0.02 mm to 0.2 mm, the shrinkage amount (D−C) of a connecting portion falls within a range of 6 mm to 27 mm, and the Vickers hardness of the metallic terminal at ordinary temperature falls within a range of 100 Hv to 430 Hv.
摘要翻译：一种火花塞，其具有改善的负载寿命性能和金属端子固定在绝缘体上的强度，并且当金属端子插入到绝缘体的轴向孔中时，这减少了绝缘体的断裂入射。本发明的火花塞的特征在于，金属端子的前端部与绝缘体的轴孔的中间直径部的壁面之间的距离（（A-A）/ 2）落入范围为0.02mm至0.2mm，连接部分的收缩量（D-C）落在6mm至27mm的范围内，并且常温下金属端子的维氏硬度落在100HV至 430 Hv。

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