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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。
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公开(公告)号：US20080173074A1
公开(公告)日：2008-07-24
申请号：US12013820
申请日：2008-01-14
IPC分类号： G01N25/02
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： 液体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; 和通电终止单元。 通电终止单元响应于过度升温判定单元的判断，在状态检测元件发生过度的温度上升之前，终止在检测期间结束之前通电单元对发热电阻的通电。
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公开(公告)号：US20070110618A1
公开(公告)日：2007-05-17
申请号：US11594764
申请日：2006-11-09
申请人： Takeo Sasanuma , Yoshikuni Sato
发明人： Takeo Sasanuma , Yoshikuni Sato
IPC分类号： G01N33/00
CPC分类号： G01N25/18 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2610/02 , F01N2610/10 , F01N2900/1814 , F01N2900/1818 , Y02T10/24 , Y02T10/47
摘要： A liquid state detecting apparatus including a detecting element having a heating resistor which generates heat when energized and being disposed in a liquid container for containing a liquid, the apparatus calculating a first difference between a first corresponding value corresponding to a first resistance of the heating resistor acquired after energization of the heating resistor is started and a second corresponding value corresponding to a second resistance of the heating resistor acquired after the heating resistor is energized for a predetermined detection time and obtaining a first concentration of a particular component included in the liquid, the first concentration being associated with the first difference, the apparatus including: an abnormality determination unit, a determination concentration acquiring unit, a concentration difference calculation unit, and a static state determination unit, all as defined herein.
摘要翻译： 一种液体状态检测装置，包括具有加热电阻器的检测元件，所述加热电阻器在通电时产生热量并且设置在用于容纳液体的液体容器中，所述装置计算对应于所述加热电阻器的第一电阻的第一对应值 开始加热电阻器的通电后获取的第一对应值，并且在加热电阻器通电预定的检测时间之后获得对应于加热电阻器的第二电阻的第二对应值，并获得包括在液体中的特定成分的第一浓度， 所述第一浓度与所述第一差异相关联，所述装置包括：异常确定单元，确定浓度获取单元，浓度差计算单元和静态状态确定单元，全部如本文所定义。
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公开(公告)号：US20070113625A1
公开(公告)日：2007-05-24
申请号：US11594887
申请日：2006-11-09
申请人： Takeo Sasanuma , Yoshikuni Sato
发明人： Takeo Sasanuma , Yoshikuni Sato
CPC分类号： F01N3/2066 , F01N2560/021 , F01N2610/1406 , G01N25/20 , Y02T10/24
摘要： A liquid state detecting apparatus including a detecting element which outputs a signal associated with a concentration of a particular component of a liquid contained in a liquid container; an abnormality determination unit which determines whether or not the liquid is in a particular abnormal state based on the output signal of the detecting element, a level detecting part which outputs a signal according to a level of the liquid contained in the liquid container; and a static state determination unit which determines whether or not the liquid in the liquid container is in a static state based on the output signal from the level detecting part, wherein the determination made by the static state determination unit is reflected in the determination made by the abnormality determination unit.
摘要翻译： 一种液体状态检测装置，包括：检测元件，其输出与容纳在液体容器中的液体的特定成分的浓度相关联的信号; 异常判定单元，其基于检测元件的输出信号来判定液体是否处于特定异常状态;电平检测部，其根据容纳在液体容器中的液体的液位输出信号; 以及静止状态判定单元，其基于来自所述电平检测部的输出信号来判定所述液体容器内的液体是否处于静止状态，其中，由所述静止状态判定单元进行的判定反映在由 异常判定单元。
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公开(公告)号：US08558441B2
公开(公告)日：2013-10-15
申请号：US12749656
申请日：2010-03-30
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug including a wire-wound resistor for restraining the radiation of noise while allowing application of a sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition. The wire-wound resistor having an inductance of 1 μH to 100 μH inclusive and a resistance of 1Ω or less, and is provided on at least one of a center electrode and a ground electrode. The wire-wound resistor restrains current which is generated by the influence of stray capacitance present in the plasma jet ignition plug, thereby reducing noise.
摘要翻译： 一种等离子喷射火花塞，其包括用于抑制噪声辐射的绕线电阻器，同时允许在点火时施加足够大的电流以产生等离子体到火花放电间隙。 所述绕线电阻体的电感为1〜100μH，电阻为10meg以下，并且设置在中心电极和接地电极中的至少一方。 绕线电阻器抑制由等离子喷射火花塞中存在的杂散电容的影响而产生的电流，从而降低噪声。
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公开(公告)号：US08196557B2
公开(公告)日：2012-06-12
申请号：US13038442
申请日：2011-03-02
摘要： A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL1, a center electrode inserted into the axial hole, and a ground electrode disposed frontward of the front end of the insulator. The insulator has a cavity defined by the wall surface of the axial hole and the front end surface of the center electrode and opens frontward. The ground electrode has a through hole for establishing communication between the cavity and an ambient atmosphere. A front end portion of the center electrode is formed into a taper portion whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion is smaller than the diameter of the through hole. The cavity has a substantially constant diameter with respect to the direction of the axis CL1.
摘要翻译： 一种等离子体火花塞，包括具有沿轴线CL1的方向延伸穿过的轴向孔的绝缘体，插入到轴向孔中的中心电极和设置在绝缘体前端的接地电极。 绝缘体具有由轴孔的壁面和中心电极的前端面形成的空腔，向前开口。 接地电极具有用于在空腔和周围环境之间建立连通的通孔。 中心电极的前端部形成为直径在轴线CL1的方向上向前减小的锥形部。 锥形部分的前端的外径小于通孔的直径。 空腔相对于轴线CL1的方向具有基本恒定的直径。
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27.发明申请公开(公告)号：US20120013262A1
公开(公告)日：2012-01-19
申请号：US13176988
申请日：2011-07-06
IPC分类号： F02P3/09
摘要： An ignition apparatus for an ignition plug which uses a positive polarity power supply, which can cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and which can adjust the timing of supply of electric energy to the ignition plug and the timing of charging of capacitors. The ignition apparatus is adapted to cause the ignition plug to generate spark discharge while using its center electrode as a negative electrode, and includes a positive power supply, and energy supply units. Each energy supply unit includes a capacitor connected at one end to the power supply and connected at the other end to the ignition plug; a switching unit for charging; and a switching unit for energy supply.
摘要翻译： 一种使用正极性电源的火花塞点火装置，其可以使火花塞在使用其中心电极作为负极时产生火花放电，并且可以调节向火花塞供电的时间 和电容充电的时间。 点火装置适于使火花塞在使用其中心电极作为负极时产生火花放电，并且包括正电源和能量供应单元。 每个能量供应单元包括在一端连接到电源并且在另一端连接到火花塞的电容器; 用于充电的开关单元; 以及用于能量供应的开关单元。
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公开(公告)号：US20110221327A1
公开(公告)日：2011-09-15
申请号：US13038442
申请日：2011-03-02
IPC分类号： H01T13/20
摘要： A plasma jet ignition plug including an insulator having an axial hole extending therethrough in the direction of an axis CL1, a center electrode inserted into the axial hole, and a ground electrode disposed frontward of the front end of the insulator. The insulator has a cavity defined by the wall surface of the axial hole and the front end surface of the center electrode and opens frontward. The ground electrode has a through hole for establishing communication between the cavity and an ambient atmosphere. A front end portion of the center electrode is formed into a taper portion whose diameter reduces frontward in the direction of the axis CL1. The outside diameter of a front end of the taper portion is smaller than the diameter of the through hole. The cavity has a substantially constant diameter with respect to the direction of the axis CL1.
摘要翻译： 一种等离子体火花塞，包括具有沿轴线CL1的方向延伸穿过的轴向孔的绝缘体，插入到轴向孔中的中心电极和设置在绝缘体前端的接地电极。 绝缘体具有由轴孔的壁面和中心电极的前端面形成的空腔，向前开口。 接地电极具有用于在空腔和周围环境之间建立连通的通孔。 中心电极的前端部形成为直径在轴线CL1的方向上向前减小的锥形部。 锥形部分的前端的外径小于通孔的直径。 空腔相对于轴线CL1的方向具有基本上恒定的直径。
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29.发明申请公开(公告)号：US20090302733A1
公开(公告)日：2009-12-10
申请号：US12474558
申请日：2009-05-29
申请人： Kenji Nunome , Yoshikuni Sato
发明人： Kenji Nunome , Yoshikuni Sato
摘要： A spark plug having a center electrode; an insulator having an axial hole extending in the direction of an axis; a metallic shell; a ground electrode extending from a front end portion of the metallic shell; a center-electrode-side noble metal chip joined to a distal end surface of the center electrode; and a ground-electrode-side noble metal chip joined to a distal end surface of the ground electrode, the ground-electrode-side noble metal chip having a distal end surface facing toward a side surface portion of the center-electrode-side noble metal chip, and the ground electrode being bent at an angle that falls within a range of 120° to 140° inclusive.
摘要翻译： 具有中心电极的火花塞; 具有沿轴线方向延伸的轴向孔的绝缘体; 金属壳; 从所述金属壳的前端部延伸的接地电极; 接合到所述中心电极的远端表面的中心电极侧贵金属芯片; 以及与接地电极的前端面接合的接地电极侧贵金属芯片，所述接地电极侧贵金属芯片具有与中心电极侧贵金属的侧面部相对的前端面 芯片，并且接地电极以包含120°至140°的范围内的角度弯曲。
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30.发明授权公开(公告)号：US06568240B1
公开(公告)日：2003-05-27
申请号：US09480661
申请日：2000-01-11
IPC分类号： G01N2726
CPC分类号： F02D41/1459 , F02D41/0042 , F02D41/0045 , F02D41/144 , F02D41/2441 , F02D41/2474 , F02D2200/0614 , G01N2291/02809
摘要： The present invention provides a method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine, featuring in that before the fuel-vaporized gas purged from the canister enters into the intake manifold whereat the sensor detects the gas concentration of the purged gas, the sensor is adjusted so as to adjust a zero point (or zero output level) of the sensor output. In step 100 of FIG. 7, a judgment is made as to whether the flow rate of air reaches a predetermined level. In step 110, processing for zero-point correction of the gas concentration sensor is performed. Specifically, in a state in which the purge valve 17 is closed, concentration of purge gas is measured by use of the gas concentration sensor 4, and a sensor output S1 at that time is obtained. Subsequently, the sensor output S1 is compared with a correct sensor output S0 in order to obtain a difference &Dgr;S therebetween. Accordingly, during subsequent gas concentration measurement, a value S3 obtained through subtraction of the difference &Dgr;S from an obtained sensor output S2 is used as a correct sensor output. In step 120, a supply amount of purge gas, i.e., a concentration of the purge gas to be supplied is obtained. In subsequent step 130, the purge valve 17 is driven in order to supply purge gas to the intake pipe 2 in a required amount (A%).
摘要翻译： 本发明提供了一种使用气体浓度传感器来精确地控制内燃机中的空燃比的方法和装置，其特征在于在从罐排出的燃料汽化气体进入进气歧管之前，传感器检测到气体 净化气体的浓度，调节传感器以调节传感器输出的零点（或零输出水平）。 在图1的步骤100中 如图7所示，判断空气流量是否达到预定水平。 在步骤110中，进行气体浓度传感器的零点校正处理。 具体地说，在关闭吹扫阀17的状态下，利用气体浓度传感器4测定净化气体的浓度，得到此时的传感器输出S1。 随后，将传感器输出S1与正确的传感器输出S0进行比较，以获得它们之间的差值DELTAS。 因此，在后续的气体浓度测量中，使用通过从获得的传感器输出S2中减去差值DELTAS获得的值S3作为正确的传感器输出。 在步骤120中，获得净化气体的供给量，即所供给的净化气体的浓度。 在随后的步骤130中，驱动排气阀17，以便以所需量（A％）向进气管2供应净化气体。
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