公开(公告)号：US5793151A

公开(公告)日：1998-08-11

申请号：US717454

申请日：1996-09-20

申请人： Junichi Kagawa ,  Kozo Amano ,  Yoshihiro Matsubara

发明人： Junichi Kagawa ,  Kozo Amano ,  Yoshihiro Matsubara

IPC分类号： F02B75/02 ,  H01T13/52

CPC分类号： H01T13/52 ,  F02B2075/027

摘要： A spark plug in use for an internal combustion engine, includes an insulator placed in a metal shell in a manner to extend its front end beyond the metal shell, a center electrode is placed within an axial bore provided by the insulator, an outer electrode which is welded to a front end of the metal shell is so bent that a firing end of the outer electrode faces a front end of the insulator with a space therebetween to cause surface-spark discharges along a front end surface of the insulator and to cause a semi-surface spark discharge between the center electrode and the outer electrode, the front end of the center electrode is protroacted from a front end of the insulator by at most than 0.5 mm or retracted from the front end of the insulator by at most than 1.0 mm, and the firing end of the outer electrode is in line with the front end surface of the insulator, thereby optimizing a carbon-deposit cleaning performance of the spark plug with the semi-surface spark discharge, according to the invention. In addition, a firing end portion of the center electrode has a slender noble metal tip in a preferred embodiment of the spark plugs of the invention.

摘要翻译： 用于内燃机的火花塞包括以将其前端延伸超过金属壳的方式设置在金属壳体中的绝缘体，将中心电极放置在由绝缘体提供的轴向孔内，外电极 被焊接到金属外壳的前端如此弯曲，使得外电极的点火端面与绝缘体的前端之间具有间隔，从而沿着绝缘体的前端表面引起表面火花放电，并引起 在中心电极和外部电极之间的半表面火花放电，中心电极的前端从绝缘体的前端突出多达0.5mm或从绝缘体的前端缩回至多1.0 mm，并且外电极的点火端与绝缘体的前端面一致，从而优化具有半表面火花放电的火花塞的碳沉积清洗性能，根据 涉及本发明。 此外，在本发明的火花塞的优选实施例中，中心电极的烧制端部具有细长的贵金属端头。

公开(公告)号：US4881403A

公开(公告)日：1989-11-21

申请号：US234214

申请日：1988-08-19

申请人： Junichi Kagawa ,  Yoshiaki Saiki ,  Kozo Amano

发明人： Junichi Kagawa ,  Yoshiaki Saiki ,  Kozo Amano

IPC分类号： G01L23/10 ,  G01L23/22 ,  H01T13/40

CPC分类号： H01T13/40 ,  G01L23/10 ,  G01L23/22 ,  Y10S73/04

摘要： A spark plug with pressure sensor comprising; a center electrode having a high voltage terminal; an insulator provided around said center electrode to securely support it; a tubular metallic shell provided to support said insulator at its inner side; a pressure sensor having a piezoelectrical element at least enclosed by a casing of a metallic hollow ring; the metallic shell having a diameter-increased portion and a diameter-reduced portion; the casing of the sensor being inserted into the diameter-reduced portion with an inner side of the casing tightly engaging the outer side of the diameter-reduced portion; a mount means having a ring portion and a flange portion; the ring portion tightly inserted into the diameter-reduced portion while the flange portion tightly sandwiching the casing with a step between the diameter-reduced portion and the diameter-increased portion; and the ring portion being welded to said diameter-reduced portion to maintain air-tight relationship between an innerside of the ring portion and outer side of the diameter-reduced portion.

摘要翻译： 一种具有压力传感器的火花塞，包括： 具有高电压端子的中心电极; 围绕所述中心电极设置的绝缘体，以牢固地支撑所述中心电极; 设置成在其内侧支撑所述绝缘体的管状金属壳; 压力传感器，其具有至少由金属中空环的壳体封闭的压电元件; 所述金属壳具有直径增加部分和直径减小部分; 所述传感器的外壳被插入所述直径减小部分中，所述壳体的内侧与所述直径减小部分的外侧紧密接合; 具有环部和凸缘部的安装装置; 所述环部分紧密地插入所述直径减小部分中，同时所述凸缘部分在所述直径减小部分和所述直径增加部分之间的台阶上紧密地夹住所述壳体; 并且所述环部分被焊接到所述直径减小部分，以保持所述环部分的内侧和所述直径减小部分的外侧之间的气密关系。

公开(公告)号：US5680002A

公开(公告)日：1997-10-21

申请号：US592693

申请日：1996-01-26

申请人： Iwao Kunitomo ,  Yoshihiro Matsubara ,  Kozo Amano

发明人： Iwao Kunitomo ,  Yoshihiro Matsubara ,  Kozo Amano

IPC分类号： H01T13/32 ,  H01T13/46 ,  H01T13/20

CPC分类号： H01T13/467

摘要： In a multi-polarity type spark plug for an internal combustion engine, a tubular insulator is supported within a cylindrical metallic shell through which a spark plug is to be attached to an internal combustion engine. A center electrode is placed within the insulator, a front end of the center electrode being directed toward a combustion chamber of the internal combustion engine from a front end of the metallic shell so as to extend beyond a front end of the insulator. First and second ground electrodes are each connected to the front end of the metallic shell, the first ground electrode forming a first vertical spark gap with a front end surface of the center electrode which directly opposes an elevational side of the center electrode, and the second ground electrode forming a second horizontal spark gap with an elevational side of the center electrode. An angle .theta.a is limited as 60.degree..ltoreq..theta.a .ltoreq.150.degree. in which the angle .theta.a is taken when the first ground electrode forms against the second ground electrode with the center electrode as an axial center.

摘要翻译： 在用于内燃机的多极型火花塞中，管状绝缘体被支撑在圆筒形的金属外壳内，火花塞将通过该外壳连接到内燃机。 中心电极放置在绝缘体内，中心电极的前端从金属壳的前端引导到内燃机的燃烧室，以便延伸超过绝缘体的前端。 第一接地电极和第二接地电极各自连接到金属壳体的前端，第一接地电极形成第一垂直火花隙，其中心电极的前端表面与中心电极的正面相对，第二接地电极 接地电极与中心电极的正面形成第二水平火花间隙。 角度θ被限制为60°θ<150°，其中当第一接地电极与中心电极作为轴向中心与第二接地电极形成时，取得角度θa。

公开(公告)号：US4984905A

公开(公告)日：1991-01-15

申请号：US494339

申请日：1990-03-16

申请人： Kozo Amano ,  Yoshihiro Matsubara

发明人： Kozo Amano ,  Yoshihiro Matsubara

IPC分类号： G01K7/00 ,  G01K7/04 ,  G01L19/00 ,  G01L23/22 ,  H01T13/40

CPC分类号： G01L19/0092 ,  G01K7/04 ,  G01L23/22 ,  H01T13/40

摘要： A temperature and pressure detecting type spark plug has a metallic shell having a mounting seat around an outer surface of the shell. The plug further has a center electrode which is placed into a tubular insulator.The center electrode has a hollow portion to enclose a thermocouple to detect a temperature of the front end of the center electrode.An annular pressure sensor is placed at the mounting seat of the metallic shell to detect a pressure within a combustion chamber in a cylinder head. The pressure sensor is arranged to be sandwiched between the mounting seat and the cylinder head when the spark plug is secured to the cylinder head of an internal combustion engine.

摘要翻译： 温度和压力检测型火花塞具有金属壳体，该壳体具有围绕外壳的外表面的安装座。 插头还具有放置在管状绝缘体中的中心电极。 中心电极具有中空部分以封闭热电偶以检测中心电极前端的温度。 环形压力传感器放置在金属外壳的安装座处，以检测气缸盖内的燃烧室内的压力。 当火花塞固定到内燃机的气缸盖上时，压力传感器被布置成夹在安装座和气缸盖之间。

公开(公告)号：US20060170320A1

公开(公告)日：2006-08-03

申请号：US11341623

申请日：2006-01-30

申请人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

发明人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

IPC分类号： H01T13/20

CPC分类号： H01T13/39

摘要： A spark plug comprising: a cylindrical metal shell; a cylindrical insulator provided in an inner hole of said metal shell; a center electrode provided in a leading end side inner hole of said insulator; and a ground electrode having one end bonded to a leading end side of said metal shell and having another end face forming a spark discharge gap with said center electrode, wherein said ground electrode comprises an electrode material containing from 0.5 to 1.5 wt. % of Si, from 0.5 to 1.5 wt. % of Al, from 0.02 to 1.0 wt. % of at least one of Ti, V, Zr, Nb and Hf, from 0.03 to 0.09 wt. % of C and 95.5 wt. % or more of Ni, and having a specific resistance at 20° C. of 25 μΩcm or less.

摘要翻译： 一种火花塞，包括：圆柱形金属壳; 设置在所述金属壳的内孔中的圆柱形绝缘体; 中心电极，设置在所述绝缘体的前端侧内孔中; 以及接地电极，其一端接合到所述金属壳的前端侧，并且具有与所述中心电极形成火花放电间隙的另一端面，其中所述接地电极包括含有0.5至1.5wt。 ％的Si，0.5〜1.5wt。 Al的百分比为0.02〜1.0重量％ Ti，V，Zr，Nb和Hf中的至少一种的0.03％，0.03〜0.09wt。 ％的C和95.5wt。 Ni以上，并且在20℃下具有25微克或更小的电阻率。

公开(公告)号：US5736809A

公开(公告)日：1998-04-07

申请号：US676840

申请日：1996-07-08

申请人： Wataru Matsutani ,  Kozo Amano

发明人： Wataru Matsutani ,  Kozo Amano

IPC分类号： H01T13/20 ,  H01T13/39 ,  H01T13/46 ,  H01T21/02

CPC分类号： H01T13/39 ,  H01T21/02

摘要： In a spark plug having a noble metal layer disposed on a firing end of an electrode, the noble metal layer being laser welded to the firing end of the electrode, and subsequently heat treated to increase a crystallized granulation particle size of the noble metal layer.

摘要翻译： 在具有设置在电极的烧成端上的贵金属层的火花塞中，将贵金属层激光焊接到电极的烧成端，然后进行热处理，以提高贵金属层的结晶造粒粒径。

公开(公告)号：US08288928B2

公开(公告)日：2012-10-16

申请号：US12889294

申请日：2010-09-23

申请人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

发明人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

IPC分类号： H01T13/30

CPC分类号： H01T13/39

摘要： A spark plug comprising: a cylindrical metal shell; a cylindrical insulator provided in an inner hole of said metal shell; a center electrode provided in a leading end side inner hole of said insulator; and a ground electrode having one end bonded to a leading end side of said metal shell and having another end face forming a spark discharge gap with said center electrode, wherein said ground electrode comprises an electrode material containing from 0.5 to 1.5 wt. % of Si, from 0.5 to 1.5 wt. % of Al, from 0.02 to 1.0 wt. % of at least one of Ti, V, Zr, Nb and Hf, from 0.03 to 0.09 wt. % of C and 95.5 wt. % or more of Ni, and having a specific resistance at 20° C. of 25 tincm or less.

摘要翻译： 一种火花塞，包括：圆柱形金属壳; 设置在所述金属壳的内孔中的圆柱形绝缘体; 中心电极，设置在所述绝缘体的前端侧内孔中; 以及接地电极，其一端接合到所述金属壳的前端侧，并且具有与所述中心电极形成火花放电间隙的另一端面，其中所述接地电极包括含有0.5至1.5wt。 ％的Si，0.5〜1.5wt。 Al的百分比为0.02〜1.0重量％ Ti，V，Zr，Nb和Hf中的至少一种的0.03％，0.03〜0.09wt。 ％的C和95.5wt。 ％以上的Ni，在20℃下的电阻率为25tincm以下。

公开(公告)号：US07825571B2

公开(公告)日：2010-11-02

申请号：US11341623

申请日：2006-01-30

申请人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

发明人： Kenichi Kumagai ,  Teruyuki Kondo ,  Kozo Amano ,  Kazuo Yamazaki ,  Yoshihiro Nakai ,  Masatada Numano

IPC分类号： H01T13/39

CPC分类号： H01T13/39

摘要： A spark plug comprising: a cylindrical metal shell; a cylindrical insulator provided in an inner hole of said metal shell; a center electrode provided in a leading end side inner hole of said insulator; and a ground electrode having one end bonded to a leading end side of said metal shell and having another end face forming a spark discharge gap with said center electrode, wherein said ground electrode comprises an electrode material containing from 0.5 to 1.5 wt. % of Si, from 0.5 to 1.5 wt. % of Al, from 0.02 to 1.0 wt. % of at least one of Ti, V, Zr, Nb and Hf, from 0.03 to 0.09 wt. % of C and 95.5 wt. % or more of Ni, and having a specific resistance at 20° C. of 25 μΩcm or less.

摘要翻译： 一种火花塞，包括：圆柱形金属壳; 设置在所述金属壳的内孔中的圆柱形绝缘体; 中心电极，设置在所述绝缘体的前端侧内孔中; 以及接地电极，其一端接合到所述金属壳的前端侧，并且具有与所述中心电极形成火花放电间隙的另一端面，其中所述接地电极包括含有0.5至1.5wt。 ％的Si，0.5〜1.5wt。 Al的百分比为0.02〜1.0重量％ Ti，V，Zr，Nb和Hf中的至少一种的0.03％，0.03〜0.09wt。 ％的C和95.5wt。 ％以上的Ni，在20℃下的电阻率为25μΩ·cm以上。

公开(公告)号：US3939577A

公开(公告)日：1976-02-24

申请号：US444046

申请日：1974-02-20

申请人： Kozo Amano

发明人： Kozo Amano

IPC分类号： G09B19/22

CPC分类号： G09B19/22

摘要： A practice board for contract bridge games is disclosed wherein one embodiment includes a rectangular sheet and another embodiment includes a circular sheet, each of which have indicia marked thereon and arranged in accordance with a predetermined contract bridge game, the indicia including four sets of first indicia showing the cards of each player's hand and being arranged such that one of the cards of each of the player's hands is eliminated each trick, second indicia showing cards to be played by each player on respective tricks, the first and second indicia being arranged in rows, trick by trick, representing 13 tricks, four sets of third indicia each of which shows bids by the corresponding player at respective rounds of bidding in a row, and two sets of fourth indicia each of which shows the number of tricks won by the corresponding partnership on the preceding tricks; cover member overlying the sheet and being provided with apertures formed therein corresponding to the indicia on the sheet and through which the indicia on each single trick can be seen, the apertures consisting of first, second, third and fourth sets of indicia on the sheet, the sheet being slidably mounted to slide or rotate relative to the cover at the end of each trick.

摘要翻译： 公开了一种用于合同桥梁游戏的练习板，其中一个实施例包括矩形片，另一个实施例包括圆形片，其中每个都具有标记并且根据预定的合约桥游戏布置的标记，该标记包括四组第一标记 显示每个玩家的手的牌，并被布置成使得每个玩家的手中的每个牌中的一张牌被淘汰，第二标记显示每个玩家在相应技巧上要玩的牌，第一和第二标记排列成行 伎俩，代表13个技巧，四组第三个标记，每一个都显示相应的玩家在连续的各轮投标中的出价，以及两组第四个标记，其中每个都显示了相应的玩家数量 以前的技巧合作; 覆盖件覆盖在片材上并且具有形成在其中的孔对应于片材上的标记，并且通过该孔可以看到在每个单个把手上的标记，由片材上的第一，第二，第三和第四组标记组成的孔， 该片可滑动地安装成在每个窍门结束时相对于盖滑动或旋转。