公开(公告)号：US09027524B2

公开(公告)日：2015-05-12

申请号：US12735343

申请日：2008-12-24

申请人： Mamoru Musasa ,  Akira Suzuki ,  Osamu Yoshimoto

发明人： Mamoru Musasa ,  Akira Suzuki ,  Osamu Yoshimoto

IPC分类号： H01T13/39 ,  C22C1/04 ,  C22C5/04 ,  C22C9/00 ,  C22C19/03 ,  C22C32/00 ,  H01T13/32 ,  H01T21/02

CPC分类号： H01T13/39 ,  C22C1/0466 ,  C22C5/04 ,  C22C9/00 ,  C22C19/03 ,  C22C32/0021 ,  H01T13/32 ,  H01T21/02 ,  Y10T29/49002

摘要： A spark plug capable of preventing a separation of a noble metal tip and capable of extending a service-life of the spark plug.

摘要翻译： 一种能够防止贵金属电极头分离并能够延长火花塞使用寿命的火花塞。

公开(公告)号：US08519606B2

公开(公告)日：2013-08-27

申请号：US13392351

申请日：2010-06-23

申请人： Akira Suzuki ,  Mai Nakamura ,  Mamoru Musasa

发明人： Akira Suzuki ,  Mai Nakamura ,  Mamoru Musasa

IPC分类号： H01T13/20 ,  H01T21/02

CPC分类号： H01T13/36 ,  F02P13/00 ,  H01T21/02

摘要： A spark plug (1) includes an insulator (2) and a metal shell (3), including a middle section (41) positioned between a collar section (16) and a tool engaging section (19). The middle section (41) has a bulged section (42), a first slender section (43) and a second slender section (44) that is the most slender at a portion positioned further to the leading end side than the bulged section (42). In a cross-section including the axis CL1, when the distance between both slender sections (43) and (44) along the axis CL1 is F (mm) and the bulged amount to the inside in diametrical direction of a most bulged section (42M) with respect to an imaginary line that connects a portion that is positioned furthest to the inside in diametrical direction of both slender sections 43 and 44 is G (mm), the relationship 0.00

摘要翻译： 火花塞（1）包括绝缘体（2）和金属壳（3），其包括位于套环部分（16）和工具接合部分（19）之间的中间部分（41）。 中间部分（41）具有凸出部分（42），第一细长部分（43）和第二细长部分（44），该第一细长部分（43）和第二细长部分（44）在位于鼓风部分（42）的前端侧的部分处最细 ）。 在包括轴线CL1的横截面中，当沿着CL1的两个细长部分（43）和（44）之间的距离为F（mm）时，并且在最隆起部分（42M）的直径方向上的内部的膨胀量 ）相对于连接两个细长部43和44的径向内侧的部分的虚拟线为G（mm），满足关系0.00

公开(公告)号：US20120146484A1

公开(公告)日：2012-06-14

申请号：US13392351

申请日：2010-06-23

申请人： Akira Suzuki ,  Mai Nakamura ,  Mamoru Musasa

发明人： Akira Suzuki ,  Mai Nakamura ,  Mamoru Musasa

IPC分类号： H01T13/20 ,  H01T21/02

CPC分类号： H01T13/36 ,  F02P13/00 ,  H01T21/02

摘要： A generation of a stress corrosion cracking is prevented in a middle section. The spark plug 1 includes an insulator 2 that extends along an axis CL1 direction and a metal shell 3. The metal shell 3 includes a middle section 41 that is positioned between a collar section 16 and a tool engaging section 19. The middle section 41 has a bulged section 42 that bulges towards both the inside and the outside in the diametrical direction, a first slender section 43 that is the most slender at a portion that is positioned further to the rear end side in the axis CL1 direction than the bulged section 42 and a second slender section 44 that is the most slender at a portion that is positioned further to the leading end side in the axis CL1 direction than the bulged section 42 and the bulged section 42 has the most bulged section 42M that bulges toward the most inside of diametrical direction. In a cross-section that includes the axis CL1, when the distance between both slender sections 43 and 44 along the axis CL1 is F (mm) and the bulged amount to the inside in diametrical direction of the most bulged section 42M with respect to an imaginary line that connects a portion that is positioned furthest to the inside in diametrical direction of both slender sections 43 and 44 is G (mm), 0.00

摘要翻译： 在中间部分防止产生应力腐蚀开裂。 火花塞1包括沿轴线CL1方向延伸的绝缘体2和金属壳3.金属壳3包括位于套环部分16和工具接合部分19之间的中间部分41.中间部分41具有 在直径方向上朝向内侧和外侧凸出的凸起部分42，在比沿凸出部分42更靠近轴线CL1方向的后端侧的部分处最细长的第一细长部分43 以及第二细长部分44，其在沿着CL1方向的前端侧比凸出部分42更远的部分处最细长，并且凸出部分42具有朝向最内侧凸出的最隆起部分42M 的直径方向。 在包括轴线CL1的横截面中，当沿着轴线CL1的两个细长部分43和44之间的距离为F（mm）时，并且最大凸起部分42M的直径方向内侧的凸出量相对于 连接两个细长部分43和44在径向方向上最远位置的部分的假想线是G（mm），0.00

公开(公告)号：US08052495B2

公开(公告)日：2011-11-08

申请号：US12057242

申请日：2008-03-27

申请人： Tomoaki Kato ,  Kazuyoshi Torii ,  Mamoru Musasa

发明人： Tomoaki Kato ,  Kazuyoshi Torii ,  Mamoru Musasa

IPC分类号： H01T21/02

CPC分类号： H01T13/32 ,  H01T21/02

摘要： A spark plug (100) including a center electrode (130) and a ground electrode (140), which is formed by joining a ground electrode chip (143) to a ground electrode base material (141) via an intermediate member (142). A method for producing the spark plug (100) includes providing a projecting portion (142p) on the intermediate member (142), and projection-welding the intermediate member (142) to the ground electrode base material (141) by means of the projecting portion (142p), to thereby join the intermediate member 142 to the ground electrode base material (141). Further, the intermediate member (142) of the spark plug (100) includes a cylindrical columnar portion (142e) which is joined to the ground electrode chip (143), and a flange portion (142d) which is joined to the ground electrode base material (141) and which flange portion (142d) has a diameter greater than that of the cylindrical columnar portion (142e).

摘要翻译： 一种火花塞（100），包括通过中间构件（142）将接地电极芯片（143）接合到接地电极基材（141）而形成的中心电极（130）和接地电极（140）。 一种火花塞（100）的制造方法，其特征在于，在所述中间部件（142）上设置突出部（142p），通过所述突出部（142）将所述中间部件（142）投射到所述接地电极母材 （142p），从而将中间构件142接合到接地电极基材（141）。 此外，火花塞（100）的中间部件（142）包括与接地电极芯片（143）接合的圆筒状的柱状部（142e）和与接地电极基体接合的凸缘部（142d） 材料（141），并且所述凸缘部分（142d）的直径大于圆柱形柱状部分（142e）的直径。

公开(公告)号：US08044562B2

公开(公告)日：2011-10-25

申请号：US12741764

申请日：2008-11-12

申请人： Mamoru Musasa ,  Naomichi Miyashita ,  Kazuyoshi Torii

发明人： Mamoru Musasa ,  Naomichi Miyashita ,  Kazuyoshi Torii

IPC分类号： H01T13/20

CPC分类号： H01T13/39

摘要： There is provided a spark section (80) of needle-like shape protruding from an inner surface (33) of a ground electrode (30) to define a spark gap between the spark section and an electrode tip on a center electrode. The spark section (80) has a noble metal member (81) and an intermediate member (86) joined to each other. The materials of the noble metal member (81) and the intermediate member (86) are selected in such a manner that the thermal conductivity of the intermediate member (86) is lower than that of the noble metal member (81). This limits heat radiation through the heat radiation passage from the noble metal member (81) through the intermediate member (86) to the ground electrode (30) so as to maintain the noble metal member (81) at a higher temperature than conventional types and reduce a quenching effect of the noble metal member (81) on a flame core generated in the spark gap for improvement in ignition performance.

摘要翻译： 设置从接地电极（30）的内​​表面（33）突出的针状的火花部（80），以在火花部和中心电极上的电极尖之间限定火花隙。 火花部（80）具有彼此接合的贵金属部件（81）和中间部件（86）。 选择贵金属构件（81）和中间构件（86）的材料，使得中间构件（86）的导热率低于贵金属构件（81）的导热率。 这就限制了通过从贵金属构件（81）穿过中间构件（86）到接地电极（30）的散热通道的热辐射，以便将贵金属构件（81）保持在比常规类型更高的温度 降低贵金属构件（81）对火花隙中产生的火焰核心的淬火效果，以提高点火性能。

公开(公告)号：US20110018422A1

公开(公告)日：2011-01-27

申请号：US12933192

申请日：2009-03-17

申请人： Akira Suzuki ,  Tomoaki Kato ,  Mamoru Musasa

发明人： Akira Suzuki ,  Tomoaki Kato ,  Mamoru Musasa

IPC分类号： H01T13/02

CPC分类号： H01T13/38

摘要： When an insulator of a spark plug receives an external force in a bending direction perpendicular to an axis at a rear end side body portion, a position C where the insulator is supported by a crimping portion via a packing acts as a fulcrum, and a stress is applied between the position C and a position B where the insulator is supported by a ledge portion via a packing. When an insulator is designed in which the balance of size and modulus of section is adjusted so that τA which denotes a proof strength against bending between a rear end position A of the insulator and the position C and τB which denotes a proof strength against bending between the position B and the position C satisfy 0.71≦τA/τB≦1.27, cracks can be prevented.

摘要翻译： 当火花塞的绝缘体在与后端侧主体部分的轴线垂直的弯曲方向上接收到外力时，绝缘体经由填料被压接部支撑的位置C用作支点，并且应力 施加在位置C和位置B之间，其中绝缘体通过包装被凸缘部分支撑。 当设计绝缘体时，其中调节截面尺寸和模量的平衡，使得表示绝缘体的后端位置A与位置C之间的弯曲的抵抗强度的τA和表示在绝缘体的后端位置A之间的弯曲的抗弯强度的τB 位置B和位置C满足0.71＆nlE;τA/τB＆nlE; 1.27，可以防止裂纹。

公开(公告)号：US20100203791A1

公开(公告)日：2010-08-12

申请号：US12702642

申请日：2010-02-09

申请人： Akira SUZUKI ,  Mai NAKAMURA ,  Mamoru MUSASA

发明人： Akira SUZUKI ,  Mai NAKAMURA ,  Mamoru MUSASA

IPC分类号： H01T21/02

CPC分类号： H01T21/02

摘要： A method for manufacturing a spark plug which includes: (a) preparing a metal shell; (b) preparing an insulator; (c) inserting the insulator in an insertion hole of the metal shell; (d) forming an intended crimping portion of the metal shell into a crimping portion; and (e) pressing a lower side portion of the metal shell closer to a position lower than the intended compressive deformation portion, and pressing the crimping portion of the metal shell in an axial direction to compressively deform the intended compressive deformation portion of the metal shell and thus seal a space between a stepped portion of the metal shell and a stepped portion of the insulator, wherein step (e) controls a pressing amount of a press in a constant value from the start of compressive deformation to the end thereof.

摘要翻译： 一种用于制造火花塞的方法，包括：（a）制备金属壳; （b）制备绝缘体; （c）将绝缘体插入金属壳的插入孔中; （d）将金属壳的预期压接部分形成到压接部分中; 和（e）将金属壳体的下侧部分压靠在比预期的压缩变形部分更靠近的位置处，并且沿轴向按压金属壳体的压接部分以使金属壳体的预期压缩变形部分压缩变形 并且因此密封金属壳的阶梯部分和绝缘体的阶梯部分之间的空间，其中步骤（e）控制从压缩变形开始到其结束的恒定值的冲压量。

公开(公告)号：US20080238282A1

公开(公告)日：2008-10-02

申请号：US12057242

申请日：2008-03-27

申请人： Tomoaki Kato ,  Kazuyoshi Torii ,  Mamoru Musasa

发明人： Tomoaki Kato ,  Kazuyoshi Torii ,  Mamoru Musasa

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  H01T21/02

摘要： A spark plug (100) including a center electrode (130) and a ground electrode (140), which is formed by joining a ground electrode chip (143) to a ground electrode base material (141) via an intermediate member (142). A method for producing the spark plug (100) includes providing a projecting portion (142p) on the intermediate member (142), and projection-welding the intermediate member (142) to the ground electrode base material (141) by means of the projecting portion (142p), to thereby join the intermediate member 142 to the ground electrode base material (141). Further, the intermediate member (142) of the spark plug (100) includes a cylindrical columnar portion (142e) which is joined to the ground electrode chip (143), and a flange portion (142d) which is joined to the ground electrode base material (141) and which flange portion (142d) has a diameter greater than that of the cylindrical columnar portion (142e).

摘要翻译： 一种火花塞（100），包括通过中间构件（142）将接地电极芯片（143）接合到接地电极基材（141）而形成的中心电极（130）和接地电极（140）。 一种火花塞（100）的制造方法，其特征在于，在所述中间部件（142）上设置突出部（142p），通过所述中间部件（142）将所述中间部件（142）投射到所述接地电极母材 突起部分（142p），从而将中间构件142接合到接地电极基材（141）。 此外，火花塞（100）的中间构件（142）包括接合到接地电极芯片（143）的圆柱形柱状部分（142e）和接合到地面的凸缘部分（142d） 电极基体材料（141），并且所述凸缘部分（142d）的直径大于圆柱形部分（142e）的直径。

公开(公告)号：US06611084B2

公开(公告)日：2003-08-26

申请号：US10082213

申请日：2002-02-26

申请人： Hideki Teramura ,  Mamoru Musasa ,  Tomoaki Kato

发明人： Hideki Teramura ,  Mamoru Musasa ,  Tomoaki Kato

IPC分类号： H01T1320

CPC分类号： H01T13/39 ,  H01T13/14 ,  H01T13/467 ,  H01T13/52

摘要： A tip portion of a center electrode 2 of a spark plug includes a tapered portion which is tapered such that the diameter reduces axially frontward. A convex portion 2k is formed at an axially intermediate position of the tapered portion so as to project radially outward with respect to an axis 30. The axially measured distance L2 between the vertex of the convex portion 2k (the convex vertex P) and the tip face 1D of an insulator is set to less than 0.5 mm. A heat release acceleration metal portion 2m, which is made of Cu or an alloy that contains a predominant amount of Cu, is present at a position located a distance L3 of 1.5 mm as measured axially rearward from the convex vertex P in order to suppress spark erosion by lowering the temperature of the center electrode 2. The heat release acceleration metal portion 2m is formed such that an electrode base material 2n, which encloses the heat release acceleration metal portion 2m, has a wall thickness W of not less than 0.6 mm as measured at a position located 1.5 mm axially rearward from the convex vertex P.

摘要翻译： 火花塞的中心电极2的前端部包括锥形部分，锥形部分使得直径沿轴向向前减小。 凸部2k形成在锥形部的轴向中间位置，以相对于轴线30径向向外突出。凸部2k的顶点（凸顶点P）与端部之间的轴向测量距离L2 绝缘体的面1D被设定为小于0.5mm。 由Cu或含有主要量的Cu的合金制成的放热加速金属部分2m存在于从凸顶点P轴向向后测量的距离L3为1.5mm的位置，以抑制火花 通过降低中心电极2的温度而引起的侵蚀。散热加速金属部分2m形成为使包围放热加速金属部分2m的电极母材2n的壁厚W不小于0.6mm作为 在距离凸顶点轴向向后1.5mm的位置处测量。

公开(公告)号：US5607605A

公开(公告)日：1997-03-04

申请号：US499217

申请日：1995-07-07

申请人： Mamoru Musasa ,  Wataru Matsutani

发明人： Mamoru Musasa ,  Wataru Matsutani

IPC分类号： B23K26/00 ,  B23K26/02 ,  B23K26/03 ,  B23K26/32 ,  G06T1/00

CPC分类号： B23K26/032

摘要： In a laser welding member, a photographing device is provided to photograph plasma caused by exposing laser beams to an object. An image processing member is provided to measure at least one of an area and height of a plasma image photographed by the photographing member. A distinction member is provided to compare a value measured by the image processing member with an allowable value so as to asses the laser welding condition.

摘要翻译： 在激光焊接部件中，设置拍摄装置以将激光束照射到物体上来照射等离子体。 提供一种图像处理部件，用于测量由拍摄部件拍摄的等离子体图像的面积和高度中的至少一个。 提供了一种区别部件，用于将由图像处理部件测量的值与允许值进行比较，以便评估激光焊接条件。