公开(公告)号：US08528531B2

公开(公告)日：2013-09-10

申请号：US13201751

申请日：2010-02-18

申请人： Daisuke Nakano ,  Yoshikuni Sato ,  Hiroyuki Kameda ,  Naofumi Yamamura ,  Daisuke Kasahara

发明人： Daisuke Nakano ,  Yoshikuni Sato ,  Hiroyuki Kameda ,  Naofumi Yamamura ,  Daisuke Kasahara

IPC分类号： H01T15/00 ,  H01T13/54 ,  F02P3/01

CPC分类号： F02P9/007

摘要： A current of sufficient size to form plasma at ignition of a plasma jet ignition plug flows to a spark discharge gap while suppressing noise occurrence.There is provided an ignition apparatus of a plasma jet ignition plug, which includes a resistor R1, with one end connected to a diode D1 disposed between the plasma jet ignition plug 100 and a high-voltage generation circuit 210 and with the other end electrically connected to a center electrode 40 of the plasma jet ignition plug 100, and a capacitor C1, with one end connected to the center electrode 40 of the plasma jet ignition plug 100 and with the other end grounded.

摘要翻译： 在等离子喷射火花塞点火时形成等离子体的足够尺寸的电流在抑制噪声发生的同时流到火花放电间隙。 提供了一种等离子喷射火花塞的点火装置，其包括电阻器R1，其一端连接到设置在等离子体喷射火花塞100和高压发生电路210之间的二极管D1，另一端电连接 到等离子体喷射火花塞100的中心电极40和电容器C1，其一端连接到等离子体喷射火花塞100的中心电极40，另一端接地。

公开(公告)号：US08288929B2

公开(公告)日：2012-10-16

申请号：US12521206

申请日：2008-04-17

申请人： Kenji Nunome ,  Yoshikuni Sato

发明人： Kenji Nunome ,  Yoshikuni Sato

IPC分类号： H01T13/20

CPC分类号： H01T13/32 ,  C22C5/04 ,  H01T13/39

摘要： A spark plug comprising a center electrode, a first noble metal tip joined to the center electrode, an insulator, a metallic shell, a ground electrode joined to the metallic shell and including an outer layer and an inner layer, and a second noble metal tip joined to the ground electrode by way of a melted portion, wherein in a cross section of the ground electrode, the protrusion height A of the second noble metal tip is 0.4mm or more, the ground electrode includes a substantially flat joining surface to which the second noble metal tip is joined and an outwardly curved surface, the inner layer has at the joining surface side a substantially flat surface or recessed surface, and the minimum distance F between the melted portion and the inner layer is 0.1mm or more.

摘要翻译： 一种火花塞，包括中心电极，连接到中心电极的第一贵金属电极头，绝缘体，金属壳体，与金属壳体接合并包括外层和内层的接地电极和第二贵金属电极头 通过熔融部分接合到接地电极，其中在接地电极的横截面中，第二贵金属电极头的突出高度A为0.4mm以上，接地电极包括基本平坦的接合面， 第二贵金属端头接合并向外弯曲的表面，内层在接合表面侧具有基本平坦的表面或凹陷表面，并且熔化部分和内层之间的最小距离F为0.1mm以上。

公开(公告)号：US08198790B2

公开(公告)日：2012-06-12

申请号：US13076835

申请日：2011-03-31

申请人： Hiroyuki Kameda ,  Yoshikuni Sato ,  Daisuke Nakano ,  Naofumi Yamamura ,  Daisuke Kasahara

发明人： Hiroyuki Kameda ,  Yoshikuni Sato ,  Daisuke Nakano ,  Naofumi Yamamura ,  Daisuke Kasahara

IPC分类号： H01T13/20

CPC分类号： H01T13/50 ,  H01T13/39

摘要： A plasma jet ignition plug having high ignition performance and high durability. The plasma jet ignition plug comprises a center electrode wherein at least a front end portion including a front end surface of the center electrode contains an oxide of at least one of the rare earth elements in a total amount of 0.5% by mass to 10% by mass inclusive and tungsten (W) in an amount of 90% by mass or greater, or contains iridium (Ir) in an amount of 0.3% by mass to 3% by mass inclusive and W in an amount of 97% by mass or greater.

摘要翻译： 具有高点火性能和高耐久性的等离子体喷射式火花塞。 等离子喷射火花塞包括中心电极，其中至少包括中心电极的前端表面的前端部分含有至少一种稀土元素的氧化物，总量为0.5质量％至10质量％ 质量含量和90质量％以上的钨（W），或者含有0.3质量％〜3质量％的铱（Ir）和97质量％以上的W 。

公开(公告)号：US08122764B2

公开(公告)日：2012-02-28

申请号：US12651735

申请日：2010-01-04

申请人： Yoshikuni Sato ,  Takashi Yamamoto ,  Takeo Sasanuma ,  Yuki Mizuno

发明人： Yoshikuni Sato ,  Takashi Yamamoto ,  Takeo Sasanuma ,  Yuki Mizuno

IPC分类号： G01F23/26

CPC分类号： G01F23/268

摘要： A sensor for detecting a state of liquid contained in a container comprising an outer tubular electrode made of an electrically conductive material, an inner electrode made of an electrically conductive material and disposed concentrically within the outer tubular electrode, a base end support member supporting base end portions of the outer tubular electrode and the inner electrode in a way as to provide insulation therebetween, and a leading end support member elastically supporting a leading end portion of the inner electrode on an inside of a leading end portion of the outer tubular electrode.

摘要翻译： 一种用于检测包含在由导电材料制成的外管状电极的容器中的液体状态的传感器，由导电材料制成并且同心地设置在外管状电极内的内电极，基端支撑件支撑基端 外管状电极和内电极的部分以提供绝缘的方式，以及前端支撑构件，其在外管状电极的前端部的内侧上弹性地支撑内电极的前端部。

公开(公告)号：US08047172B2

公开(公告)日：2011-11-01

申请号：US12366094

申请日：2009-02-05

申请人： Toru Nakamura ,  Yuichi Yamada ,  Iwao Kunitomo ,  Yoshikuni Sato ,  Daisuke Nakano

发明人： Toru Nakamura ,  Yuichi Yamada ,  Iwao Kunitomo ,  Yoshikuni Sato ,  Daisuke Nakano

IPC分类号： F02P21/04 ,  F02P23/00

CPC分类号： H01T13/50 ,  H01T13/32

摘要： A plasma jet ignition plug capable of inhibiting occurrence of channeling while reducing removal of energy of plasma through a ground electrode at the time of emission of plasma. A ground electrode of a plasma jet ignition plug projects inward from a front end face of a metallic shell toward an opening end of a cavity which is open at a front end face of an insulator. A projecting distal end which forms a spark discharge gap between the same and a center electrode within a cavity is located inward, with respect to a diametral direction P orthogonal to an axis O, of a position which is located 0.5 mm radially outward from the opening end of the cavity.

摘要翻译： 一种等离子喷射火花塞，其能够抑制发射通道，同时在发射等离子体时减少通过接地电极去除等离子体的能量。 等离子喷射火花塞的接地电极从金属壳的前端面朝向在绝缘体的前端面开口的空腔的开口端向内突出。 在腔内形成火花放电间隙的突出的远端相对于与轴线O垂直的直径方向P位于距开口径向向外0.5mm的位置的内侧 腔的末端。

公开(公告)号：US20110254429A1

公开(公告)日：2011-10-20

申请号：US12998934

申请日：2009-12-22

申请人： Hiroyuki Kameda ,  Yoshikuni Sato ,  Daisuke Nakano ,  Naofumi Yamamura ,  Daisuke Kasahara

发明人： Hiroyuki Kameda ,  Yoshikuni Sato ,  Daisuke Nakano ,  Naofumi Yamamura ,  Daisuke Kasahara

IPC分类号： H01T13/20

CPC分类号： H01T13/50

摘要： A plasma jet spark plug capable of preventing a channeling progress and having excellent heat conduction. The plasma jet spark plug comprised of: a ceramic insulator having a small diameter portion which assumes a linear shape in an axial direction, and a center electrode has an outer diameter increasing in the order of a frontmost portion, a step portion, a front end portion and a body portion.

摘要翻译： 一种等离子喷射火花塞，能够防止窜槽进行并具有优异的导热性。 等离子体火花塞包括：具有沿轴向呈直线状的小直径部分的陶瓷绝缘体，中心电极的外径按照最前部，台阶部，前端 部分和主体部分。

公开(公告)号：US07735354B2

公开(公告)日：2010-06-15

申请号：US11653252

申请日：2007-01-16

申请人： Takashi Yamamoto ,  Takeo Sasanuma ,  Yoshikuni Sato

发明人： Takashi Yamamoto ,  Takeo Sasanuma ,  Yoshikuni Sato

IPC分类号： G01N33/00

CPC分类号： G01N25/005 ,  F01N3/206 ,  F01N2610/02 ,  G01F23/268

摘要： A liquid-condition detection sensor (1) including a sensor element (51), at least a portion of which contacts a urea aqueous solution; connection terminals (52) fixedly attached to the sensor element (51); connection cables (53) which electrically communicate with the concentration sensor element (51) via the connection terminals (52); an inner tube (42) which holds the concentration sensor element (51) at a distal end portion (421) by use of a holder member (55) and surrounds a portion of the connection cables (53) and the entire connection terminals (52); and a separator formed from a material having rubberlike elasticity (54) including a terminal-inner-tube-insulating portion (542) which intervenes between the connection terminals (52) and the inner tube (42) to thereby insulate the connection terminals (52) and the inner rube (42) from one another.

摘要翻译： 一种液体状态检测传感器（1），其包括至少一部分与尿素水溶液接触的传感器元件（51） 固定在传感器元件（51）上的连接端子（52）; 连接电缆（53），经由连接端子（52）与浓度传感器元件（51）电连通; 通过使用保持器构件（55）将浓度传感器元件（51）保持在远端部分（421）处并且包围连接电缆（53）的一部分和整个连接端子（52）的内管（42） ）; 以及由具有橡胶弹性的材料（54）形成的隔板，所述隔板包括介于所述连接端子（52）和所述内管（42）之间的端子 - 内管绝缘部分（542），从而使所述连接端子 ）和内部微波（42）。

公开(公告)号：US07637148B2

公开(公告)日：2009-12-29

申请号：US12013820

申请日：2008-01-14

申请人： Takeo Sasanuma ,  Yoshikuni Sato ,  Takashi Yamomoto ,  Hisashi Sasaki

发明人： Takeo Sasanuma ,  Yoshikuni Sato ,  Takashi Yamomoto ,  Hisashi Sasaki

IPC分类号： G01N25/00

CPC分类号： G01F23/247 ,  G01F23/248

摘要： A liquid state detecting sensor includes: a state detecting element including a heating resistor; an energization unit; a first output acquiring unit; a reference acquiring unit; a first calculating unit; a state detecting unit; a second output acquiring unit; a second calculating unit; an excess-temperature-rise determining unit; and an energization terminating unit. The energization termination unit terminates energizing of the heating resistor by the energization unit before the end of a detection time period in response to a determination by the excessive-temperature-rise determining unit that an excessive temperature rise has occurred in the state detecting element.

摘要翻译： 液状态检测传感器包括：状态检测元件，包括加热电阻器; 通电单位; 第一输出获取单元; 参考获取单元; 第一计算单元; 状态检测单元; 第二输出获取单元; 第二计算单元; 过热升温判定单元; 和通电终端单元。 通电终止单元响应于过温度上升判定单元的判定，在状态检测元件发生过度的温度上升之前，终止在检测时间段结束之前的通电单元​​对加热电阻器的通电。

公开(公告)号：US20090090178A1

公开(公告)日：2009-04-09

申请号：US11994191

申请日：2006-06-30

申请人： Takeo Sasanuma ,  Yoshikuni Sato ,  Takashi Yamamoto

发明人： Takeo Sasanuma ,  Yoshikuni Sato ,  Takashi Yamamoto

IPC分类号： G01F23/00

CPC分类号： G01F23/268 ,  F01N3/206 ,  F01N2610/02 ,  F01N2610/14 ,  G01F23/266

摘要： A liquid state detecting sensor is provided in which a level detecting unit for detecting the level of a liquid and a concentration detecting unit for detecting the concentration of a particular component contained in the liquid are integrated.In a liquid state detecting sensor 100 capable of measuring the level and a urea concentration of a urea aqueous solution, a level detecting unit 70 and a liquid property detecting unit 30 are connected in an insulated state. An outer cylinder electrode 10 and an inner electrode 20 for forming the level detecting unit 70 form a capacitor, and level detection is performed on the basis of the electrostatic capacity which changes in response to the level of the urea aqueous solution which is present therebetween. A holder 120 for holding a ceramic heater 110 is fitted to a leading end portion 21 of the inner electrode 20, and the holder 120 is supported inside a leading end portion 11 of the outer cylinder electrode 10 by a rubber bushing 80. Further, the urea concentration is determined by a liquid property detecting circuit unit of a circuit board 60 by energizing a heat generating resistor pattern provided on the ceramic heater 110 for a fixed time duration and on the basis of a voltage value corresponding to a resistance value of the heat generating resistor pattern obtained at this time.

摘要翻译： 提供一种液体状态检测传感器，其中集成有用于检测液位的电平检测单元和用于检测包含在液体中的特定成分的浓度的浓度检​​测单元。 在能够测量尿素水溶液的水平和尿素浓度的液状态检测传感器100中，电平检测单元70和液体特性检测单元30以绝缘状态连接。 用于形成电平检测单元70的外筒电极10和内电极20形成电容器，并且基于响应于存在于其间的尿素水溶液的水平而变化的静电电容进行电平检测。 用于保持陶瓷加热器110的保持器120装配到内部电极20的前端部21，并且保持器120通过橡胶衬套80被支撑在外部气缸电极10的前端部11内。此外， 尿素浓度由电路板60的液体特性检测电路单元确定，通过对设置在陶瓷加热器110上的发热电阻图案施加一定的持续时间，并且基于对应于热量的电阻值的电压值 产生此时获得的电阻图案。

公开(公告)号：US20080205478A1

公开(公告)日：2008-08-28

申请号：US12016580

申请日：2008-01-18

申请人： Takeo SASANUMA ,  Yoshikuni Sato ,  Akihiro Yoshida

发明人： Takeo SASANUMA ,  Yoshikuni Sato ,  Akihiro Yoshida

IPC分类号： G01N25/18

CPC分类号： G01N27/18 ,  F01N3/2066 ,  F01N11/00 ,  F01N2610/14 ,  F01N2610/148 ,  F01N2900/1818 ,  Y10T436/171538

摘要： A urea sensor includes a detecting portion which, in use, is immersed in a liquid accommodated in a urea solution tank for detecting the thermal conductivity of the liquid to detect whether the liquid accommodated in the urea solution tank is an aqueous urea solution; and an enclosing member enclosing a periphery of the detecting portion and including one or more vents penetrating the enclosing member. At least one of the vents is a lower vent being of a configuration and size such that a first hypothetical circle having a diameter of not less than 3.5 mm can be wholly contained within the lower vent. At least a portion of the lower vent is positioned below the detecting portion when the urea sensor is positioned for installation in the urea solution tank.

摘要翻译： 尿素传感器包括检测部，其在使用中浸渍在容纳在尿素溶液罐中的液体中，用于检测液体的导热性，以检测容纳在尿素溶液罐中的液体是否为尿素水溶液; 以及封闭构件，其围绕所述检测部分的周边并且包括穿过所述封闭构件的一个或多个通气口。 通气口中的至少一个是具有如下构造和尺寸的下通气口，使得具有不小于3.5mm直径的第一假想圆可以完全包含在下通风口内。 当尿素传感器被定位用于安装在尿素溶液箱中时，下部通风口的至少一部分位于检测部分的下方。