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1. 发明授权

US08324791B2 Spark plug for internal combustion engine 有权
标题翻译：内燃机火花塞
公开(公告)号：US08324791B2
公开(公告)日：2012-12-04
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
IPC分类号： H01T13/26 , H01T21/02
CPC分类号： H01T13/39 , H01T13/32 , H01T21/02
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
摘要翻译：一种火花塞，包括：杆状中心电极; 绝缘体金属壳; 连接到金属壳并朝向中心电极弯曲的接地电极; 接合到接地电极的端部并且经由间隙与中心电极的前端部相对的贵金属端头; 和凸起部分。贵金属电极头的一部分嵌入到接地电极中，贵金属电极头的另一部分从接地电极的远端表面突出。 A（mm）是贵金属电极头从前端面突出的长度，满足A≥0.25mm的关系。凸起部覆盖贵金属端头和端面之间在宽度方向上的边界的中心部分。

2. 发明申请

US20090107438A1 PRE-CHAMBER IGNITER HAVING ADJUSTABLE ELECTRODE 有权
标题翻译：具有可调节电极的前置电极
公开(公告)号：US20090107438A1
公开(公告)日：2009-04-30
申请号：US11980406
申请日：2007-10-31
申请人： Darryl D. Baldwin , James M. Schultz
发明人： Darryl D. Baldwin , James M. Schultz
IPC分类号： F02P9/00 , H01T13/54 , H01T13/26
CPC分类号： H01T13/26 , H01T21/06
摘要： An igniter for an internal combustion engine is disclosed. The igniter may have a body, and a pre-combustion chamber integral with the body and having at least one orifice. The igniter may also have at least one electrode extending into the pre-combustion chamber. The at least one electrode may be configured to direct an arc to an annular side wall of the pre-combustion chamber, and may be movable to adjust an arc termination location on the annular side wall of the pre-combustion chamber.
摘要翻译：公开了一种用于内燃机的点火器。点火器可以具有主体和与主体成一体并且具有至少一个孔的预燃烧室。点火器还可以具有延伸到预燃烧室中的至少一个电极。所述至少一个电极可以被配置为将电弧引导到预燃烧室的环形侧壁，并且可以是可移动的，以调节预燃烧室的环形侧壁上的电弧终止位置。

3. 发明授权

US5463267A Spark plug with automatically adjustable gap 失效
标题翻译：火花塞具有自动调节间隙
公开(公告)号：US5463267A
公开(公告)日：1995-10-31
申请号：US371051
申请日：1995-01-10
申请人： Scott R. Conway
发明人： Scott R. Conway
IPC分类号： H01T13/26
CPC分类号： H01T13/26
摘要： In spark ignited engine configurations, it is common to provide a spark plug that has a spark gap that has dimension that will accommodate good starting capabilities for the engine. In some cases, this spark gap is larger than required for the engine to run efficiently, especially at high loads. As a result, the voltage required to bridge the gap when the engine is running at high loads is much higher than necessary and causes erosion of the electrode and a build up of deposits on the ground strap. Ultimately, this greatly reduces the life of the spark plug. The present invention provides a spark plug that utilizes an adjusting means that is connected to the electrode of the spark plug and functions to move the electrode with respect to the ground strap to adjust the gap therebetween. The adjusting means is responsive to the temperature of the spark plug which will vary with engine loads or an increase in pressure within the combustion chamber.
摘要翻译：在火花点火发动机配置中，通常提供具有火花间隙的火花塞，该火花塞的尺寸将适应发动机的良好启动能力。在某些情况下，这种火花隙大于发动机高效运行所需的火花隙，特别是在高负载时。因此，当发动机在高负载下运行时桥接间隙所需的电压要高得多，导致电极的侵蚀和接地带上沉积物的积累。最终，这大大减少了火花塞的寿命。本发明提供了一种火花塞，其利用连接到火花塞的电极的调节装置，并且其功能是使电极相对于接地带移动以调节其间的间隙。调节装置响应火花塞的温度，火花塞的温度将随发动机负载或燃烧室内的压力增加而变化。

4. 发明授权

US10720759B2 Ignition plug 有权
公开(公告)号：US10720759B2
公开(公告)日：2020-07-21
申请号：US16494331
申请日：2017-08-08
申请人： NGK SPARK PLUG CO., LTD.
发明人： Susumu Imai
IPC分类号： H01T13/36 , H01T13/26 , H01T13/08
摘要： The spark plug includes an insulator, a metal shell, and a buffering member. The buffering member is filled in a space that is enclosed by an inner peripheral surface of the metal shell and an outer peripheral surface of the insulator. 3 mm2≤L×T is satisfied in a case where: a length in a direction of an axial line of a filled portion filled with the buffering member is defined as a filling length L; a thickness, of a screw portion of the metal shell, that is half a difference left after subtraction of the inner diameter of the metal shell from the pitch diameter of the screw portion is defined as an effective thickness; and a minimum value of the effective thickness of a portion, of the screw portion, present rearward of an inner diameter reduction portion of the metal shell is defined as a minimum thickness T.

5. 发明申请

US20170358903A1 SPARK PLUG INCLUDING A GROUND ELECTRODE HAVING A SMALL CROSS SECTION 有权
公开(公告)号：US20170358903A1
公开(公告)日：2017-12-14
申请号：US15535823
申请日：2015-12-03
申请人： Robert Bosch GmbH
发明人： Andreas Benz , Manfred Roeckelein
IPC分类号： H01T13/16 , H01T13/39 , H01T21/02 , H01T13/32 , H01T13/26 , H01T13/08
CPC分类号： H01T13/16 , H01T13/08 , H01T13/26 , H01T13/32 , H01T13/39 , H01T21/02
摘要： A spark plug, including a housing, an insulator situated in the housing, a center electrode situated in the insulator and a ground electrode situated on the housing, the ground electrode and the center electrode being situated relative to one another in such a way that the ground electrode and the center electrode form a spark gap, and the ground electrode including a core and a sheath surrounding the core, the core being made of a material which has a higher thermal conductivity than the material of the sheath, and a cross sectional area of the ground electrode being not greater than 2.76 mm2, the sheath having a wall thickness c of not greater than 0.4 mm in a first region of the ground electrode.

6. 发明授权

US09478946B2 Spark plug 有权
标题翻译：火花塞
公开(公告)号：US09478946B2
公开(公告)日：2016-10-25
申请号：US14662371
申请日：2015-03-19
申请人： Nano Spark Inc.
发明人： Mark Farrell
IPC分类号： H01T13/04 , H01T13/20 , H01T13/26 , H01T13/46 , H01T21/06 , H01T13/32
CPC分类号： H01T13/20 , H01T13/04 , H01T13/26 , H01T13/32 , H01T13/467 , H01T21/06
摘要： A spark plug is disclosed and includes a metal tube which interiorly defines an axis and is externally-threaded for engagement with an engine block. An insulating has a portion which is disposed inside the tube and extends therebeyond. A positive electrode extends through the insulator and projects beyond the extending portion of the insulator. An annular ground electrode is coupled to the tube. The electrodes are configured such that a spark gap defined therebetween has an elongate channel which opens axially and away from the insulator and is substantially unobstructed in the axial direction. The ground defines a void having a central portion occupied by the positive electrode in use, an annular channel surrounding the central portion, and a plurality of lobes, each being positioned with respect to the central portion in a manner analogous to the placement of the planet gears with respect to the sun gear in a planetary gear arrangement.
摘要翻译：公开了火花塞，并且包括内部限定轴线并且是外螺纹以与发动机缸体接合的金属管。绝缘体具有设置在管内并部分延伸的部分。正极延伸穿过绝缘体并突出超过绝缘体的延伸部分。环形接地电极耦合到管。电极被构造成使得在其间限定的火花间隙具有沿轴向和远离绝缘体开放并且在轴向上基本上不受阻碍的细长通道。地面限定了在使用中具有由正电极占据的中心部分的空隙，围绕中心部分的环形通道，以及多个凸角，每个凸角以类似于行星的位置的方式相对于中心部分定位相对于行星齿轮装置中的太阳齿轮的齿轮。

7. 发明申请

US20090127997A1 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：US20090127997A1
公开(公告)日：2009-05-21
申请号：US12274396
申请日：2008-11-20
申请人： Hiroyuki Kameda , Mamoru Musasa
发明人： Hiroyuki Kameda , Mamoru Musasa
IPC分类号： H01T13/26 , H01T21/02
CPC分类号： H01T13/39 , H01T13/32 , H01T21/02
摘要： A spark plug including: a rod-shaped center electrode; an insulator; a metal shell; a ground electrode joined to the metal shell and bent toward the center electrode; a noble metal tip joined to an end portion of the ground electrode and opposing a leading end portion of the center electrode via a gap; and a bulge portion. A part of the noble metal tip is embedded in the ground electrode, and another part of the noble metal tip protrudes from a distal end surface of the ground electrode. A relationship A≧0.25 mm is satisfied where A (mm) is a protruding length of the noble metal tip from the distal end surface. The bulge portion covers a center part of a boundary between the noble metal tip and the end surface in a width direction.
摘要翻译：一种火花塞，包括：杆状中心电极; 绝缘体金属壳; 连接到金属壳并朝向中心电极弯曲的接地电极; 接合到接地电极的端部并且经由间隙与中心电极的前端部相对的贵金属端头; 和凸起部分。贵金属电极头的一部分嵌入到接地电极中，贵金属电极头的另一部分从接地电极的远端表面突出。满足A = 0.25mm的关系，其中A（mm）是贵金属端头从远端表面的突出长度。凸起部覆盖贵金属端头和端面之间在宽度方向上的边界的中心部分。

8. 发明授权

US1799922A Spark plug 失效
公开(公告)号：US1799922A
公开(公告)日：1931-04-07
申请号：US27865928
申请日：1928-05-18
申请人： MOSLER IGNITION CORP
发明人： MOSLER ARTHUR R
IPC分类号： H01T13/26
CPC分类号： H01T13/26

9. 发明授权

US09991679B2 Spark plug including a ground electrode having a small cross section 有权
公开(公告)号：US09991679B2
公开(公告)日：2018-06-05
申请号：US15535823
申请日：2015-12-03
申请人： Robert Bosch GmbH
发明人： Andreas Benz , Manfred Roeckelein
IPC分类号： H01T13/20 , H01T13/16 , H01T13/32 , H01T13/39 , H01T21/02 , H01T13/26 , H01T13/08
CPC分类号： H01T13/16 , H01T13/08 , H01T13/26 , H01T13/32 , H01T13/39 , H01T21/02
摘要： A spark plug, including a housing, an insulator situated in the housing, a center electrode situated in the insulator and a ground electrode situated on the housing, the ground electrode and the center electrode being situated relative to one another in such a way that the ground electrode and the center electrode form a spark gap, and the ground electrode including a core and a sheath surrounding the core, the core being made of a material which has a higher thermal conductivity than the material of the sheath, and a cross sectional area of the ground electrode being not greater than 2.76 mm2, the sheath having a wall thickness c of not greater than 0.4 mm in a first region of the ground electrode.

10. 发明申请

US20180010511A1 INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180010511A1
公开(公告)日：2018-01-11
申请号：US15638574
申请日：2017-06-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Teruaki HAIBARA
IPC分类号： F02B23/10 , F02M57/06 , H01T13/08 , F02P13/00 , H01T13/52 , H01T13/26
CPC分类号： F02B23/101 , F02B2023/102 , F02B2023/103 , F02B2275/48 , F02M57/06 , F02M61/14 , F02M61/1806 , F02P13/00 , H01T13/08 , H01T13/26 , H01T13/52 , Y02T10/125
摘要： A fuel injector is configured so that, when seen from a top view of a combustion chamber, a first fuel spray flux and a second fuel spray flux sandwich an electrode part of a spark plug, and the electrode part is located outside of contour surfaces of the two fuel spray fluxes. A first injection angle between a center line of the first fuel spray flux and a vertical line and a second injection angle between a center line of the second fuel spray flux and the vertical line are larger than an angle between a center line of any other fuel spray flux and the vertical line. The second injection angle is made smaller than the first injection angle so that a distance from the electrode part to the contour surface of the second fuel spray flux is larger than a distance from the electrode part to the contour surface of the first fuel spray flux.

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