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1. 发明专利

JP2010165698A Spark plug 审中-公开
标题翻译： SPARK插头
公开(公告)号：JP2010165698A
公开(公告)日：2010-07-29
申请号：JP2010106877
申请日：2010-05-07
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YUMINO JIRO , SUZUKI AKIRA , MORIBE MAI , NAKANO YUICHI , MUSASA MAMORU
IPC分类号： H01T13/20
摘要： PROBLEM TO BE SOLVED: To provide a spark plug capable of reliably suppressing oxidation of a molten part formed between an electrode tip to be jointed to the tip of a center electrode by sufficiently performing heat dissipation of the tip of the center electrode.
SOLUTION: In the direction of the axis line O, a plane P (double dotted line P-P is its cross section) which passes through a position at the rear end of the molten part 95 of the center electrode 20 and is orthogonal to the axis line O, and a plane Q (double dotted line Q-Q is its cross section) which is parallel to the plane P passing through a position 4 mm away from the plane P to the rear end side are assumed. When Va and Vb are volumes of an electrode base member 21 and a core member 25 of the center electrode 20 between the planes P and Q, respectively, and d is the diameter (outer diameter) of the cut surface of the center electrode 20 by the plane Q, the center electrode 20 is superior in heat dissipation, and oxidation of the molten part 95 of the electrode tip 90 can be suppressed if d≤2.1 [mm] and -0.09×d+0.33
摘要翻译：要解决的问题：提供一种火花塞，其能够通过充分地进行中心电极的尖端的散热来可靠地抑制形成在待接合的电极头之间的熔融部分的氧化。解决方案：在轴线O的方向上，穿过中心电极20的熔融部分95的后端的位置的平面P（双点划线PP是其横截面），并且正交于假设轴线O和平行于平面P的平面Q（双点划线QQ是其横截面），平面P穿过距离平面P至后端侧4mm的位置。当Va和Vb分别是平面P和Q之间的中心电极20的电极基底构件21和芯构件25的体积，d是中心电极20的切割面的直径（外径）时，由平面Q，中心电极20的散热优异，并且如果d≤2.1[mm]和-0.09×d + 0.33

2. 发明专利

JP2009129645A Spark plug 审中-公开
标题翻译： SPARK插头
公开(公告)号：JP2009129645A
公开(公告)日：2009-06-11
申请号：JP2007301852
申请日：2007-11-21
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YUMINO JIRO , SUZUKI AKIRA , MORIBE MAI , NAKANO YUICHI , MUSASA MAMORU
IPC分类号： H01T13/20
CPC分类号： H01T13/39
摘要： PROBLEM TO BE SOLVED: To provide a spark plug capable of reliably suppressing oxidation of a molten part formed between a center part and an electrode tip joined to the tip part of the center electrode by sufficiently performing heat dissipation of the tip part.
SOLUTION: In the direction of the axis line O, a plane P (double dotted line P-P is its cross section) which passes through a position at the rear end of the molten part 95 of the center electrode 20 and is orthogonal to the axis line O, and a plane Q (double dotted line Q-Q is its cross section) which is parallel to the plane P passing through a position 4 mm away from the plane P to the rear end side are assumed. When Va and Vb are volumes of an electrode base member 21 and a core member 25 of the center electrode 20 between the planes P and Q, respectively, and d is a diameter (outer diameter) of the cut surface of the center electrode 20 by the plane Q, the center electrode 20 is excellent in heat dissipation performance, and oxidation of the molten part 95 of the electrode tip 90 can be suppressed if d≤2.1 [mm] and -0.09×d+0.33
摘要翻译：要解决的问题：提供一种火花塞，其能够通过充分地进行前端部的散热来可靠地抑制形成在中心部分和连接到中心电极的顶端部分的电极头部之间的熔融部分的氧化。解决方案：在轴线O的方向上，穿过中心电极20的熔融部分95的后端的位置的平面P（双点划线PP是其横截面），并且正交于假设轴线O和平行于平面P的平面Q（双点划线QQ是其横截面），平面P穿过距离平面P至后端侧4mm的位置。当Va和Vb分别是平面P和Q之间的中心电极20的电极基底构件21和芯构件25的体积时，d是中心电极20的切割面的直径（外径）平面Q，中心电极20的散热性能优异，并且如果d≤2.1[mm]和-0.09×d + 0.33

3. 发明专利

JP2011100575A Method of manufacturing central electrode for spark plug, and method of manufacturing spark plug 有权
标题翻译：火花塞制造中心电极的制造方法及制作火花塞的方法
公开(公告)号：JP2011100575A
公开(公告)日：2011-05-19
申请号：JP2009253181
申请日：2009-11-04
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NAKANO YUICHI , SUZUKI AKIRA , NAKAMURA MAI , YUMINO JIRO , MUSASA MAMORU
IPC分类号： H01T13/20 , C22C19/05 , H01T13/39 , H01T21/02
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method which can improve weldability of a nobel metal chip welded at a tip of a central electrode for a spark plug. SOLUTION: The central electrode 5 includes a core 5A, a body 5B and an intermediate part 5C, wherein a nobel metal chip 31 is welded at a tip of the intermediate part 5C. In manufacturing the central electrode 5, after integrating a core precursor 5A', a body precursor 5B' and an intermediate part precursor 5C' as precursors of the central electrode 5 by plastic working, the nobel metal chip 31 is welded at a tip of the intermediate precursor 5C'. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以提高焊接在用于火花塞的中心电极的尖端处的诺贝尔金属芯片的焊接性的制造方法。解决方案：中心电极5包括芯5A，主体5B和中间部分5C，其中在中间部分5C的尖端处焊接有诺贝尔金属芯片31。在制造中心电极5时，通过塑性加工将核心前体5A'，体前体5B'和作为中心电极5的前体的中间部分前体5C'整合在一起，将诺贝尔金属片31焊接在中间体前体5C'。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009176525A Spark plug 有权
标题翻译： SPARK插头
公开(公告)号：JP2009176525A
公开(公告)日：2009-08-06
申请号：JP2008012815
申请日：2008-01-23
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： YUMINO JIRO , SUZUKI AKIRA , MORIBE MAI , NAKANO YUICHI , MUSASA MAMORU
IPC分类号： H01T13/36 , H01T13/20 , H01T13/34
摘要： PROBLEM TO BE SOLVED: To provide a spark plug in which anti-fouling property is improved by utilizing a cleaning effect by corona discharge. SOLUTION: When a distance between the outer side end part 68 of diameter direction in a fittings face 61 facing toward the rear end and a first edge angle part region 65 is L, the distance X between a ring-shaped packing 8 and the first edge corner part region 65 of the rear end side in a fittings reduced diameter part 60 of the body fittings 50 is arranged to be 0.05 L or more and 0.3 L or less. By this, since the angle of the first edge corner part region 65 becomes exposed without being covered by the packing 8, electric field intensity in the vicinity of the first edge corner part region 65 becomes intensified so that the corona discharge occurs. Since the carbon adhered to the surface of the insulating insulator 10 is cleaned by this corona discharge, the anti-fouling property of the spark plug is improved. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供通过利用电晕放电的清洁效果来提高防污性能的火花塞。解决方案：当面向后端的配件面61中的外径端部68的外侧端部68与第一边缘角部区域65之间的距离为L时，环形密封件8与主体配件50的配件缩径部60中的后端侧的第一边缘角部区域65被配置为0.05L以上且0.3L以下。由此，由于第一边缘角部区域65的角度暴露而不被封装8覆盖，所以第一边缘角部区域65附近的电场强度变强，发生电晕放电。由于通过该电晕放电来清洁粘附到绝缘绝缘体10的表面的碳，所以提高了火花塞的防污性。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2011258583A Method of manufacturing spark plug 有权
标题翻译：制造火花塞的方法
公开(公告)号：JP2011258583A
公开(公告)日：2011-12-22
申请号：JP2011208233
申请日：2011-09-23
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KATO TOMOAKI , TAIDO AKIKAZU , NAKANO YUICHI
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , B23K26/0622 , B23K26/28 , Y10T29/49002
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a spark plug capable of suppressing occurrence of spatters, blowholes and cracks in laser welding of an electrode tip and an electrode base material.SOLUTION: A method of manufacturing a spark plug 100 includes a laser welding step in which an electrode tip 133 is arranged on an electrode base material 131 and unit welding portions 135n1 to 135n10 corresponding to each of laser pulses N1 to N10 are sequentially formed by irradiating a pulsed laser beam LS on the electrode tip and the electrode base material. In the step, a laser intensity wave form of each of the laser pulses N1 to N10 is made to have a wave form in which a laser intensity Sa1 increases with time during a predetermined initial period Ta1 from a starting time tsa.
摘要翻译：要解决的问题：提供一种制造能够抑制电极头和电极基材的激光焊接中飞溅，气泡和裂缝的发生的火花塞的方法。解决方案：一种制造火花塞100的方法包括激光焊接步骤，其中将电极头133布置在电极基材131上，并且依次对应于每个激光脉冲N1至N10的单元焊接部分135n1至135n10 通过在电极尖端和电极基材上照射脉冲激光束LS而形成。在该步骤中，激光脉冲N1至N10中的每一个的激光强度波形被制成具有激光强度Sa1在从开始时间tsa起的预定初始周期Ta1期间随时间增加的波形。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011086640A Method of manufacturing spark plug 审中-公开
标题翻译：制造火花塞的方法
公开(公告)号：JP2011086640A
公开(公告)日：2011-04-28
申请号：JP2011021420
申请日：2011-02-03
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KATO TOMOAKI , TAIDO AKIKAZU , NAKANO YUICHI
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , B23K26/0622 , B23K26/28 , Y10T29/49002
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a spark plug which prevents occurrence of sputtering, a blow hole and a crack in laser welding between an electrode chip and an electrode base material. SOLUTION: The method of manufacturing the spark plug 100 includes a laser welding process in which an electrode chip 133 is arranged at an electrode base material 131 and by irradiating a pulsed laser beam LS on it, unit welding parts 135n1 to 135n10 are formed in the order corresponding to respective laser pulses N1 to N10. In this process, laser intensity wave forms of the respective laser pulses N1 to N10 from the starting time tsa to a prescribed initial period Ta1 are made to have wave forms that a laser intensity Sa1 becomes larger as time passes. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造火花塞的方法，该火花塞防止在电极芯片和电极基体材料之间的激光焊接中的溅射，气泡孔和裂纹的发生。解决方案：制造火花塞100的方法包括激光焊接工艺，其中电极芯片133布置在电极基材131处并且通过在其上照射脉冲激光束LS，单元焊接部分135n1至135n10为以对应于各个激光脉冲N1至N10的顺序形成。在这个过程中，激光强度Sa1从起始时间tsa到规定的初始周期Ta1的激光强度波形形成激光强度Sa1随着时间的推移而变大。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2008270185A Spark plug manufacturing method 审中-公开
标题翻译： SPARK PLUG制造方法
公开(公告)号：JP2008270185A
公开(公告)日：2008-11-06
申请号：JP2008072693
申请日：2008-03-20
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KATO TOMOAKI , TAIDO AKIKAZU , NAKANO YUICHI
IPC分类号： H01T13/20 , H01T21/02
CPC分类号： H01T21/02 , B23K26/0622 , B23K26/28 , Y10T29/49002
摘要： PROBLEM TO BE SOLVED: To provide a spark plug manufacturing method which can prevent spattering, blowhole, and cracking from occurring in a laser welding of an electrode chip and an electrode member. SOLUTION: A method for manufacturing a spark plug 100 includes a laser welding step for forming unit welding parts 135n1 to 135n10 corresponding to respective laser pulses N1 to N10 by arranging an electrode chip 133 on an electrode base material 131 and irradiating it with a pulsed laser beam LS. The laser welding step uses laser strength waveforms for the respective laser pulses N1 to N10, where the laser strength waveform shows an increase in a laser strength Sa1 in a predetermined initial time period Ta1 from a start time tsa as time passes. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止在电极芯片和电极部件的激光焊接中发生飞溅，气孔和裂纹的火花塞的制造方法。解决方案：一种用于制造火花塞100的方法包括激光焊接步骤，用于通过将电极芯片133布置在电极基体材料131上并将其照射到其上并形成单元焊接部分135n1至135n10，以对应于各个激光脉冲N1至N10 脉冲激光束LS。激光焊接步骤对于各激光脉冲N1〜N10使用激光强度波形，其中激光强度波形表示从开始时间tsa开始的预定初始时间段Ta1中的激光强度Sa1的增加。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2009070580A Fitting structure of spark plug and spark plug 有权
标题翻译： SPARK插头和SPARK插头的配置结构
公开(公告)号：JP2009070580A
公开(公告)日：2009-04-02
申请号：JP2007234534
申请日：2007-09-10
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NAKANO YUICHI , SUZUKI AKIRA , MUSASA MAMORU
IPC分类号： H01T13/08 , F02P13/00
摘要： PROBLEM TO BE SOLVED: To provide the fitting structure of a spark plug capable of fitting the spark plug to an internal combustion engine in such a state that the spark plug is directed to the desired direction and stably displaying appropriate ignition performance; and the spark plug.
SOLUTION: A first plate-like member 60, a second plate-like member 70 and a cylindrical pressing member 50 are installed from the bottom in order in a spark plug body 40 as a component for fitting to an engine block 200. The first plate-like member 60 is formed in a ring shape, and a projection part 61 is installed as a plate-like member side locking part so as to project from the outer periphery to the outside. The projecting part 61 is locked in a groove as a plug hole side locking part installed in the inner wall of a plug hole of the engine block to prevent the rotation of the first plate-like member 60 within the plug hole.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够将火花塞装配到内燃机的火花塞的装配结构，使得火花塞指向所需方向并稳定地显示适当的点火性能; 和火花塞。解决方案：在作为用于装配到发动机缸体200的部件的火花塞体40中，从底部开始依次安装第一板状构件60，第二板状构件70和圆筒形按压构件50。第一板状构件60形成为环状，并且突起部61作为板状构件侧锁定部安装成从外周突出到外部。突出部61被锁定在凹槽中，作为安装在发动机缸体的塞孔的内壁中的塞孔侧锁定部，以防止第一板状构件60在塞孔内旋转。版权所有（C）2009，JPO＆INPIT

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