公开(公告)号：US4399699A

公开(公告)日：1983-08-23

申请号：US169677

申请日：1980-07-17

申请人： Takeshi Fujishiro

发明人： Takeshi Fujishiro

IPC分类号： G01F23/26 ,  G08B21/00

CPC分类号： G01F23/263 ,  G01F23/266

摘要： An electrostatic type fuel measuring device comprises a pair of oppositely arranged electrodes separated by insulating spacers immersed in liquid fuel in a tank so that a variation of the electrostatic capacity between the electrodes due to a variation in the liquid fuel level is detected electrically and the fuel amount is measured and indicated.

摘要翻译： 一种静电式燃料测量装置，包括一对相对布置的电极，该电极由浸在液体燃料中的绝缘垫片隔开，以使电极中的液体燃料液位的变化导致电极之间的静电电容变化，并且燃料 测量和指示量。

公开(公告)号：US4304652A

公开(公告)日：1981-12-08

申请号：US157183

申请日：1980-06-06

申请人： Masao Chiba ,  Takeshi Fujishiro

发明人： Masao Chiba ,  Takeshi Fujishiro

IPC分类号： F02D41/14 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/416 ,  G01N27/58

CPC分类号： G01N27/4071 ,  G01N27/4065

摘要： A device having a probe of the oxygen concentration cell type to be disposed in a combustion gas to detect actual air/fuel ratio values of an air-fuel mixture subjected to combustion. The probe has a gas impermeable layer of a solid electrolyte such as zirconia, a porous reference electrode layer made of a catalytic material such as platinum and formed on the solid electrolyte layer, a porous gas-diffusion layer covering the reference electrode layer and a porous and noncatalytic measurement electrode layer formed on the solid electrolyte layer so as to be spaced from the reference electrode layer. A DC power supply is connected to the probe to force a constant current of an adequate intensity to flow through the solid electrolyte layer between the two electrode layers. Depending on the direction of the current flow, an output voltage of this device becomes indicative of air/fuel ratio values above or below the stoichiometric air/fuel ratio.

摘要翻译： 具有氧气浓度单元型探针的装置，其设置在燃烧气体中，以检测经受燃烧的空气 - 燃料混合物的实际空气/燃料比值。 探针具有诸如氧化锆的固体电解质的不透气层，由铂等催化材料制成的多孔参比电极层，形成在固体电解质层上，覆盖参比电极层的多孔气体扩散层和多孔气体扩散层 以及形成在固体电解质层上以与参考电极层间隔开的非催化测量电极层。 直流电源连接到探针，以迫使足够强度的恒定电流流过两个电极层之间的固体电解质层。 取决于电流的方向，该装置的输出电压表示空气/燃料比值高于或低于理论空燃比。

公开(公告)号：US4298573A

公开(公告)日：1981-11-03

申请号：US150059

申请日：1980-05-15

申请人： Takeshi Fujishiro

发明人： Takeshi Fujishiro

IPC分类号： G01N27/12 ,  G01N27/16 ,  G01N27/407 ,  G01N27/409 ,  G01N27/416 ,  G01N27/417 ,  G01N27/419 ,  G01N33/22 ,  G01N27/46

CPC分类号： G01N27/4071 ,  G01N27/417 ,  Y10T436/208339

摘要： A device suitable for use in engine exhaust gas to detect actual air/fuel ratio of air-fuel mixture supplied to the engine. The probe of the device has three electrodes. An oxygen ion conductive solid electrolyte occupies a space between the first and second electrodes, and a porous layer of similar solid electrolyte occupies a space between the second and third electrodes such that exhaust gas directly contacts the first and third electrodes and also contacts the second electrode through the porous solid electrolyte layer. At least one of the first and second electrodes, particularly the second, is made of a catalytic material, and the first and second electrodes serve as output terminals of the probe. Preferably the second and third electrodes are connected to a DC power supply to force a current to flow through the porous solid electrolyte layer to control oxygen partial pressure at the second electrode surface. By selectively determining catalysis of the first and second electrodes and/or the direction or intensity of the current, air/fuel ratios above, below and equal to a stoichiometric ratio can be detected.

摘要翻译： 适用于发动机废气的装置，用于检测供给发动机的空气 - 燃料混合物的实际空气/燃料比。 器件的探针有三个电极。 氧离子导电固体电解质占据第一和第二电极之间的空间，并且类似固体电解质的多孔层占据第二和第三电极之间的空间，使得废气直接接触第一和第三电极并且还接触第二电极 通过多孔固体电解质层。 第一和第二电极，特别是第二电极中的至少一个由催化材料制成，并且第一和第二电极用作探针的输出端。 优选地，第二和第三电极连接到DC电源以迫使电流流过多孔固体电解质层以控制第二电极表面处的氧分压。 通过选择性地确定第一和第二电极的催化作用和/或电流的方向或强度，可以检测高于，低于和等于化学计量比的空气/燃料比。

公开(公告)号：US4142482A

公开(公告)日：1979-03-06

申请号：US767133

申请日：1977-02-09

申请人： Masaharu Asano ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Nobuzi Manaka ,  Mituhiko Ezoe

发明人： Masaharu Asano ,  Takeshi Fujishiro ,  Shigeo Aono ,  Akio Hosaka ,  Nobuzi Manaka ,  Mituhiko Ezoe

IPC分类号： F02D41/14 ,  F02B3/08 ,  F01N3/08 ,  F02M7/12

CPC分类号： F02D41/1479 ,  F02D41/1456

摘要： Emission control apparatus for internal combustion engines is provided with a sensor for detecting the concentration of a particular exhaust composition in the emissions from the engine. A signal indicating the deviation of the mixture ratio from a controlled point is generated by comparing the output from the sensor with a reference level, the signal being modified in amplitude according to a predetermined control characteristic and used to regulate the air-fuel mixture ratio at the desired control point. The varying magnitude of the sensed concentration is smoothed into a signal of slowly varying magnitude which is used to control the reference level so that error introduced into the deviation indicating signal due to the change with time in the output performance of the exhaust composition sensor is self-compensated. A level sensor is provided to detect when the reference level reaches an end of the control range to change the operating mode of the engine from closed-loop to open-loop mode.

摘要翻译： 用于内燃机的排放控制装置设置有用于检测来自发动机的排放物中的特定排气组合物的浓度的传感器。 通过将传感器的输出与基准电平进行比较，产生混合比与受控点的偏差的信号，该信号根据预定的控制特性在幅度上进行改变，并用于调节空气 - 燃料混合比在 所需的控制点。 感测浓度的变化幅度被平滑化成缓慢变化幅度的信号，其用于控制​​参考电平，使得由于排气组成传感器的输出性能随时间变化而引入到偏差指示信号中的误差是自身的 补偿。 提供了一个液位传感器来检测参考电平何时达到控制范围的结束，以将发动机的运行模式从闭环模式转换到开环模式。

公开(公告)号：US4141813A

公开(公告)日：1979-02-27

申请号：US769350

申请日：1977-02-16

申请人： Toru Kita ,  Takeshi Fujishiro

发明人： Toru Kita ,  Takeshi Fujishiro

IPC分类号： G01N27/409 ,  G01N27/16 ,  G01N27/403 ,  G01N27/407 ,  G01N27/46

CPC分类号： G01N27/407 ,  G01N27/4078

摘要： A solid electrolyte tube closed at one end and two porous electrode layers respectively coated on the outer and inner surfaces of the electrolyte tube constitute a known oxygen concentration cell. A tubular metal shell encloses the electrolyte tube partly such that a closed end portion of the tube protrudes from the shell and that the outer electrode coating is locally in contact with the inside of the shell. To protect the open end of the electrolyte tube against splashing of water during use without interrupting the admission of atmospheric air as a reference gas into the inside of the electrolyte tube, a tubular cap member of a metal is coaxially fixed to and electrically connected at its one end to the shell at one end portion surrounding the open end of the electrolyte tube, and a cross-sectionally circular plug of an insulating material is coaxially and tightly received in and fixed to the cap member to occupy an end portion, contiguous to the free end, of the interior of the cap member. This plug has two axial bores which respectively allow two cable wires of the sensor to tightly pass therethrough and an air-admitting passage formed therein independently of these two bores in such an arrangement and cross-sectional area that unpressurized water does not pass therethrough from the atmosphere to the unoccupied portion of the interior of the cap member.

摘要翻译： 在一端封闭的固体电解质管和分别涂覆在电解质管的外表面和内表面上的两个多孔电极层构成已知的氧浓度电池。 管状金属壳部分包围电解质管，使得管的封闭端部从外壳突出，并且外电极涂层局部地与外壳接触。 为了保护电解液管的开口端，在使用过程中不会中断溅水，而不会中断将大气作为参考气体进入电解液管的内部，金属管状盖件同时固定在其上并与之电连接 在围绕电解质管的开口端的一个端部处的壳体的一端，并且绝缘材料的横截面圆形的塞子同轴地并且紧密地容纳在盖构件中并固定到盖构件上，以占据端部， 帽部件内部的自由端。 该插头具有两个轴向孔，其分别允许传感器的两个电缆线紧密地通过，并且独立于这两个孔形成的空气进入通道在这样的布置和横截面积中，使得未加压的水不从其中穿过 气氛到盖构件的内部的未占用部分。

公开(公告)号：US4105524A

公开(公告)日：1978-08-08

申请号：US742698

申请日：1976-11-17

申请人： Takeshi Fujishiro ,  Kiyoshi Wazawa ,  Takeshi Oguro

发明人： Takeshi Fujishiro ,  Kiyoshi Wazawa ,  Takeshi Oguro

IPC分类号： G01N27/407 ,  G01N27/416 ,  G01N27/46

CPC分类号： G01N27/4073

摘要： A sensor mainly intended for use in an engine exhaust system and constituted of a hollow and bottomless cylinder of a solid oxygen-ion electrolyte such as a ZrO.sub.2 -CaO system. A pair of porous and conductive films are respectively deposited on the outer and inner surfaces of the cylinder and a pair of conductor members are fixed to the cylinder. One of the conductor members covers hermetically one end of the cylinder while the other is fixed to the opposite end region of the cylinder and bored such that the interior space of the cylinder communicates with an exterior atmosphere exclusively through the bore and such that the cylinder can be entirely held in a heated gas subject to the measurement when the sensor is attached to a vessel containing the heated gas therein. The cylinder of solid electrolyte may be made up of either a single piece or a plurality of identical pieces hermetically joined to one another in an axial direction, wherein the conductive films of each piece are connected in series with ones of the adjoining piece.

公开(公告)号：US4098653A

公开(公告)日：1978-07-04

申请号：US771780

申请日：1977-02-24

申请人： Toru Kita ,  Takeshi Fujishiro

发明人： Toru Kita ,  Takeshi Fujishiro

IPC分类号： G01N27/409 ,  G01N27/403 ,  G01N27/407 ,  G01N27/46

CPC分类号： G01N27/4077

摘要： An oxygen sensor particularly useful for detecting oxygen concentration in exhaust gas of internal combustion engine is principally made up of a solid electrolyte tube which is closed at one end, anode and cathode electrode layers respectively formed on the outer and inner surfaces of the electrolyte tube and a tubular metal shell which tightly receives therein the electrolyte tube, leaving a closed end portion of the electrolyte tube protruded from the shell. To protect the protruded portion of the electrolyte tube against a direct exposure to a high velocity hot gas stream to be measured and a collision with any external article, without obstructing a rapid and uniform heating of the electrolyte tube by the gas stream, a hood in the shape of a cylindrical tube with a closed end is fixed at its open end portion to the shell to enclose therein the closed end portion of the electrolyte tube. The hood has a single gas inlet aperture formed in the side wall to extend axially of the hood and open against the gas stream and at least one gas outlet aperture formed in the side wall circumferentially at approximately 180.degree. from the inlet aperture. The total area of the outlet aperture is smaller than the area of the inlet aperture.

摘要翻译： 特别适用于检测内燃机废气中氧浓度的氧传感器主要由在一端封闭的固体电解质管，分别形成在电解质管的外表面和内表面上的阳极和阴极电极层和 管状金属壳，其紧密地容纳电解质管，留下从壳体突出的电解质管的封闭端部。 为了保护电解质管的突出部分免受直接暴露于要测量的高速热气流和与任何外部物品的碰撞，而不阻碍气流快速均匀地加热电解质管，罩 具有封闭端的圆柱形管的形状在其开口端部固定到壳体，以封闭其中电解质管的封闭端部。 罩具有形成在侧壁中的单个气体入口孔，以在罩的轴向延伸并抵靠气流打开，并且在侧壁中形成的至少一个气体出口孔与入口孔大约成180度。 出口孔的总面积小于入口孔的面积。

公开(公告)号：US4076608A

公开(公告)日：1978-02-28

申请号：US739020

申请日：1976-11-04

申请人： Takeshi Fujishiro ,  Toru Kita

发明人： Takeshi Fujishiro ,  Toru Kita

IPC分类号： G01N27/407 ,  G01N27/46

CPC分类号： G01N27/4073 ,  Y10S439/913

摘要： An oxygen sensor comprises an electrolyte which is shaped into a conical tube having a closed end of small diameter and an open end of large diameter. The wall thickness of the electrolyte is gradually decreased toward the closed end from the open end and that of the closed end is 0.3 to 1.0 mm so as to provide a high sensitivity.

摘要翻译： 氧传感器包括电解质，其被成形为具有小直径的封闭端和大直径的开口端的锥形管。 电解质的壁厚从开口端向封闭端逐渐减小，封闭端的壁厚为0.3〜1.0mm，以提供高灵敏度。

公开(公告)号：USD661282S1

公开(公告)日：2012-06-05

申请号：US29406762

申请日：2011-11-18

申请人： Yoshihiro Tatara ,  Takeshi Fujishiro ,  Tetsu Nakayama ,  Takeshi Ishikawa ,  Akihiro Nishiyama

设计人： Yoshihiro Tatara ,  Takeshi Fujishiro ,  Tetsu Nakayama ,  Takeshi Ishikawa ,  Akihiro Nishiyama

公开(公告)号：US07837306B2

公开(公告)日：2010-11-23

申请号：US11605455

申请日：2006-11-29

申请人： Takeshi Fujishiro

发明人： Takeshi Fujishiro

IPC分类号： B41J2/045 ,  B41J2/135

CPC分类号： B41J2/17513 ,  B41J2/1752 ,  B41J2/17523

摘要： A valve unit includes a valve portion arranged in a laminate body operable to open and close a flow passage; a drive portion that generates drive force for driving the valve portion; and a transmission portion arranged between the valve portion and the drive portion for transmitting the drive force of the drive portion to the valve portion. The laminate body includes: a first plate member including the drive portion; and a second plate member including a hole functioning as part of the flow passage; and a third plate member arranged above the second plate member and including a plate spring so as to urge the valve portion to a closing position. The valve portion pivots and inclines about a position in contact with the plate spring based on the drive force from the drive portion.

摘要翻译： 阀单元包括设置在可操作以打开和关闭流动通道的层压体中的阀部分; 产生用于驱动所述阀部的驱动力的驱动部; 以及布置在阀部分和驱动部分之间的传动部分，用于将驱动部分的驱动力传递到阀部分。 层压体包括：包括驱动部分的第一板构件; 以及第二板构件，其包括用作所述流动通道的一部分的孔; 以及第三板构件，其布置在所述第二板构件的上方并且包括板簧，以将所述阀部分推动到关闭位置。 阀部分基于来自驱动部分的驱动力围绕与板簧接触的位置枢转和倾斜。