公开(公告)号：US5544639A

公开(公告)日：1996-08-13

申请号：US298585

申请日：1994-08-30

申请人： Hirofumi Shouda ,  Yoshihiko Hirata ,  Katsuhiko Kawai ,  Toshio Kondo ,  Hiroshi Haraguchi

发明人： Hirofumi Shouda ,  Yoshihiko Hirata ,  Katsuhiko Kawai ,  Toshio Kondo ,  Hiroshi Haraguchi

IPC分类号： F01N9/00 ,  F02D41/14 ,  F02D41/24 ,  F02D41/00

CPC分类号： F01N9/005 ,  F02D41/1401 ,  F02D41/1446 ,  F02D41/28 ,  F02D2041/1415 ,  F02D2041/1423 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2041/1434 ,  Y02T10/47

摘要： A temperature projecting system includes a temperature sensor for monitoring a temperature of an objective portion where the temperature changes depending on an engine operating condition. The temperature projecting system projects an actual temperature of the objective portion based on the monitored temperature but free of a first-order lag of the temperature sensor. A temperature control system includes the temperature projecting system. The temperature control system derives a correction amount for a basic control amount of an actuator based on a difference between the projected actual temperature and a target temperature. The basic control amount is corrected by the correction amount to derive a corrected control amount which controls the engine operating condition and thus the temperature of the objective portion.

摘要翻译： 温度投影系统包括温度传感器，用于监视温度根据发动机工作状态而变化的目标部分的温度。 温度投影系统基于所监视的温度来投影物镜部分的实际温度，但没有温度传感器的一阶滞后。 温度控制系统包括温度投影系统。 温度控制系统根据投影实际温度和目标温度之间的差异，得出致动器的基本控制量的校正量。 通过校正量来校正基本控制量，从而导出控制发动机工作状态和因此目标部分的温度的校正控制量。

公开(公告)号：US5313395A

公开(公告)日：1994-05-17

申请号：US752655

申请日：1991-10-24

申请人： Katsuhiko Kawai ,  Tasunori Kato ,  Katsuhiko Nakabayashi ,  Shigenori Isomura ,  Hisashi Iida ,  Toshio Kondo

发明人： Katsuhiko Kawai ,  Tasunori Kato ,  Katsuhiko Nakabayashi ,  Shigenori Isomura ,  Hisashi Iida ,  Toshio Kondo

IPC分类号： F02D31/00 ,  F02D41/08 ,  F02D41/14 ,  F02D41/16 ,  G06F15/20

CPC分类号： F02D41/16 ,  F02D31/005 ,  F02D41/083 ,  F02D41/1401 ,  F02D2041/1415 ,  F02D2041/1431 ,  F02D2041/1433

摘要： The digital control unit of the present invention relates to improvements in what is called recent control, and more particularly relates to the idle rotating speed control unit of an internal combustion engine in which the idle rotating speed can be quickly converged to the target rotating speed in the case where a load given from the outside varies. Especially, when the value of the state variable is reversely calculated from the state in which open loop control is conducted, the initial value can be accurately determined.

摘要翻译： PCT No.PCT / JP90 / 01684第 371日期1991年10月24日 102（e）日期1991年10月24日PCT 1990年12月25日PCT公布。 WO91 / 10057 PCT出版物 日本1991年7月11日。本发明的数字控制单元涉及所谓的近期控制的改进，更具体地涉及一种内燃机的怠速转速控制单元，其中怠速转速可以快速 在从外部施加的载荷变化的情况下，会聚到目标转速。 特别地，当从进行开环控制的状态反向计算状态变量的值时，可以准确地确定初始值。

公开(公告)号：US06712053B2

公开(公告)日：2004-03-30

申请号：US10229284

申请日：2002-08-28

申请人： Kazuo Kobayashi ,  Hiroshi Haraguchi ,  Toshio Kondo ,  Sumiko Kohira

发明人： Kazuo Kobayashi ,  Hiroshi Haraguchi ,  Toshio Kondo ,  Sumiko Kohira

IPC分类号： F02D4100

CPC分类号： F02D41/0052 ,  F02D23/02 ,  F02D41/0072 ,  F02D41/1458 ,  F02D2200/0402 ,  F02M26/05 ,  F02M26/10 ,  Y02T10/144 ,  Y02T10/47

摘要： An O2 amount in the intake air is determined based on a fresh air and an EGR gas. A consumed O2 amount is determined with a command injection amount Qr. Then, the consumed O2 amount is subtracted from the O2 amount in the intake air to obtain an exhaust O2 amount. An exhaust O2 concentration is estimated based on the exhaust O2 amount. According to the invention, the system is not affected by a delay for the exhaust gas to reach an O2 sensor and a delay of the chemical reaction in the O2 sensor. Therefore, the exhaust O2 concentration can be highly precisely estimated compare to the case in which the exhaust O2 concentration is detected by the O2 sensor.

摘要翻译： 基于新鲜空气和EGR气体来确定进气中的O2量。 用指令喷射量Qr确定消耗的O2量。 然后，从进气中的O 2量中减去消耗的O 2量，以获得排气O 2量。 基于排气O 2量估计排气O 2浓度。 根据本发明，该系统不受排气到达O2传感器的延迟和O2传感器中的化学反应的延迟的影响。 因此，与O2传感器检测到排气O2浓度的情况相比，可以高精度地估计排气O 2浓度。

公开(公告)号：US5090199A

公开(公告)日：1992-02-25

申请号：US626829

申请日：1990-12-13

申请人： Kenji Ikuta ,  Toshio Kondo ,  Hiroshi Haraguchi

发明人： Kenji Ikuta ,  Toshio Kondo ,  Hiroshi Haraguchi

IPC分类号： F02D41/04 ,  F02D41/14

CPC分类号： F02D41/1401 ,  F02D41/1441 ,  F02D41/1479 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/1433 ,  F02D41/1456

摘要： An air-fuel ratio control apparatus for an engine for controlling a fuel injection amount so that an air-fuel ratio of a mixture gas which is supplied to the engine is set to a stoichiometric air-fuel ratio is disclosed. The apparatus has a first oxygen concentration sensor on the upstream side of a catalyst arranged in an exhaust pipe of the engine and a second oxygen concentration sensor on the downstream side, respectively. The first sensor gives to the apparatus a first linear detection signal for the air-fuel ratio of the mixture gas. The second sensor gives to the apparatus a second detection signal indicating whether the air-fuel ratio of the mixture gas is rich or lean for the stoichiometric air-fuel ratio. A target air-fuel ratio is set in accordance with the second detection signal and the first detection signal and the target air-fuel ratio are compared, thereby controlling a fuel injection amount. Thus, a deviation between the actual air-fuel ratio and the first detection signal can be accurately corrected and the air-fuel ratio can be accurately controlled to a value in a region where a high purification factor of the catalyst is derived.

摘要翻译： 公开了一种用于控制燃料喷射量的发动机的空燃比控制装置，使得供给发动机的混合气体的空燃比被设定为理论空燃比。 该装置在布置在发动机的排气管中的催化剂的上游侧具有第一氧浓度传感器，在下游侧具有第二氧浓度传感器。 第一传感器向装置提供混合气体的空燃比的第一线性检测信号。 第二传感器给予装置第二检测信号，其指示混合气体的空燃比对于化学计量空燃比是富还是贫。 根据第二检测信号设定目标空燃比，并比较第一检测信号和目标空燃比，由此控制燃料喷射量。 因此，可以精确地校正实际空燃比与第一检测信号之间的偏差，并且可以将空燃比精确地控制为导致催化剂的净化系数高的区域的值。

公开(公告)号：US5003955A

公开(公告)日：1991-04-02

申请号：US463438

申请日：1990-01-11

申请人： Hiroshi Haraguchi ,  Hiroshi Tamura ,  Katuhiko Kodama ,  Toshio Kondo

发明人： Hiroshi Haraguchi ,  Hiroshi Tamura ,  Katuhiko Kodama ,  Toshio Kondo

IPC分类号： F02B75/02 ,  F02D41/14 ,  F02D41/24

CPC分类号： F02D41/2445 ,  F02D41/2454 ,  F02D41/248 ,  F02B2075/027

摘要： A method of controlling the air fuel ratio in internal combustion, engines, comprising the steps of: updating first learning terms at a first learning speed in response to a signal from the air-fuel-ratio sensor and respectively storing them in a reloadable memory device, the first learning terms being provided for respective different ranges corresponding to different engine temperature and related to factors causing variation in air-fuel ratio in such a manner that the air-fuel-ratio variate of the variation varies depending upon the engine temperature; updating second learning terms at a second learning speed which is higher than the first learning speed in response to a signal from the air-fuel-ratio sensor and storing them in the reloadable memory device, the second learning terms being related to factors causing variation in air-fuel ratio in such a manner that the air-fuel-ratio variate of the variation varies in a substantially uniform manner with respect to the engine temperature; and determining the transient learning value on the basis of the first learning terms dependent on the engine temperature and stored in the memory device and of the second learning terms stored in the memory device, and correcting the transient correction value in accordance with the transient learning value thus determined.

公开(公告)号：US5154053A

公开(公告)日：1992-10-13

申请号：US690825

申请日：1991-04-26

申请人： Kazumi Ishida ,  Hiroshi Haraguchi ,  Toshio Kondo

发明人： Kazumi Ishida ,  Hiroshi Haraguchi ,  Toshio Kondo

IPC分类号： F02B1/04 ,  F02D19/02 ,  F02D41/14 ,  F02M21/02

CPC分类号： F02D41/1441 ,  F01N2240/20 ,  F02B1/04

摘要： An air-fuel ratio control apparatus in which an air-fuel ratio of a mixture gas supplied to an engine, especially, a gas engine, is controlled in accordance with an output signal of each of oxygen concentration sensors disposed in upper and lower streams of an exhaust gas catalyzer of the engine. The output signal of the oxygen concentration sensor disposed on the upper stream side of the catalyzer is provided as one input signal of an air-fuel ratio control unit and the output signal of the oxygen concentration sensor disposed on the lower stream side of the catalyzer is provided as an input signal of an output signal correction amount determination unit, respectively. A mixing member for mixing an exhaust gas is disposed in an upper stream of each oxygen concentration sensor to detect the concentration of oxygen in the exhaust gas which is well mixed. The air-fuel ratio control unit controls an air-fuel ratio of a mixture gas in accordance with the output signal of the oxygen concentration sensor disposed on the upper stream side of the catalyzer and an output signal correction amount which is an output signal of the output signal correction amount determination unit. Since the exhaust gas is sufficiently mixed by the mixing member, variations of a measured value caused by the attachment position of each oxygen concentration sensor ar eliminated, thereby making it possible to control the air-fuel ratio of the mixture gas to a value close to a theoretical air-fuel ratio with a satisfactory precision.

摘要翻译： 一种空燃比控制装置，其中，根据设置在上游和下游的各个氧浓度传感器的输出信号来控制供应到发动机，特别是燃气发动机的混合气体的空燃比 发动机的废气催化器。 设置在催化剂的上游侧的氧浓度传感器的输出信号被设置为空燃比控制单元的一个输入信号，并且设置在催化器的下游侧的氧浓度传感器的输出信号为 分别作为输出信号校正量确定单元的输入信号提供。 在每个氧浓度传感器的上游设置有用于混合排气的混合部件，以检测排出气体中的氧气的浓度。 空燃比控制单元根据设置在催化剂的上游侧的氧浓度传感器的输出信号和作为输出信号的输出信号的输出信号校正量来控制混合气体的空燃比 输出信号校正量确定单元。 由于废气通过混合部件充分混合，消除了由每个氧浓度传感器ar的安装位置引起的测量值的变化，从而可以将混合气体的空燃比控制在接近于 理论空燃比具有令人满意的精度。

公开(公告)号：US5251438A

公开(公告)日：1993-10-12

申请号：US916268

申请日：1992-07-21

申请人： Kazumi Ishida ,  Hiroshi Haraguchi ,  Toshio Kondo

发明人： Kazumi Ishida ,  Hiroshi Haraguchi ,  Toshio Kondo

IPC分类号： F02B1/04 ,  F02D41/14 ,  F01N3/20

CPC分类号： F02D41/1441 ,  F01N2240/20 ,  F02B1/04

摘要： An air-fuel ratio feedback control apparatus for a gas engine. A mixer mixes intake air and a fuel gas. A subsidiary supply path supplies at least one of the intake air and the fuel gas downstream of the mixer. Oxygen concentration sensors detect a concentration of oxygen in an exhaust gas; and operation condition detectors detect operating conditions of the gas engine. A basic amount setting unit sets a basic amount of at least one of the intake air and the fuel gas supplied through the subsidiary supply path. A correction amount setting unit sets a correction amount proportional to a total fuel gas supply rate, and a control amount setting unit for setting a control amount of at least one of the intake air and the fuel gas supplied through the subsidiary supply path by adding the basic amount and the correction amount together, whereby the air-fuel ratio of the gas engine can be controlled at a desired value even when a bypass supply ratio of the fuel gas varies.

摘要翻译： 一种用于燃气发动机的空燃比反馈控制装置。 混合器混合进气和燃气。 辅助供应路径在混合器下游供应进气和燃料气体中的至少一个。 氧浓度传感器检测废气中的氧浓度; 并且操作条件检测器检测燃气发动机的运行状况。 基本量设定单元设定通过辅助供给路径供给的吸入空气和燃料气体中的至少一个的基本量。 校正量设定单元设定与总燃料气体供给量成比例的校正量，以及控制量设定单元，用于设定通过辅助供给路径供给的吸入空气和燃料气体中的至少一个的控制量， 基本量和校正量，由此即使当燃料气体的旁路供应比变化时，也可以将气体发动机的空燃比控制在期望值。

公开(公告)号：US06401798B1

公开(公告)日：2002-06-11

申请号：US09456654

申请日：1999-12-08

申请人： Toshio Kondo

发明人： Toshio Kondo

IPC分类号： B02C1912

CPC分类号： B22C5/10 ,  Y10S241/10

摘要： A molding sand reclaiming apparatus comprising an agitation tank which is provided with a fluidized bed at the inner bottom thereof and also provided with a charging port for used sand and a discharging port for reclaimed sand on the side wall thereof, a rotating shaft driven by a driving source disposed in the agitation tank; a rotating drum which is driven by the rotating shaft to agitate used sand charged into the agitation tank and peel off extraneous matters on the used sand; a classification tank which communicates with the upper part of the agitation tank via a regulating plate and is provided with a dust collecting port; and an air pressure source to fluidize the used sand charged on the fluidized bed in the agitation tank and classify, in the classification tank, the used sand into two parts of the extraneous matters peeled off by the rotating drum and the reclaimed sand, wherein scattering holes for scattering the used sand are formed in a cylinder portion constituting outside of the rotating drum.

摘要翻译： 一种成型砂回收装置，包括：搅拌槽，其内底设有流化床，并且在其侧壁上设置有用于砂的加料口和再生砂的排出口，旋转轴由 驱动源设置在搅拌槽中; 由旋转轴驱动的旋转滚筒，搅拌填充到搅拌槽中的用过的砂子，并剥离用过的砂子上的外来物质; 分级罐，其经由调节板与搅拌槽的上部连通并设置有集尘口; 以及空气压力源，用于使填充在搅拌槽中的流化床上的废砂流化，并且在分级罐中将二手砂分为两部分由旋转鼓和再生砂剥离的外来物质，其中散射 用于散布用过的砂的孔形成在构成旋转滚筒外部的圆筒部中。

公开(公告)号：US06367453B1

公开(公告)日：2002-04-09

申请号：US09703714

申请日：2000-11-02

申请人： Toshihiko Igashira ,  Shuichi Matsumoto ,  Yoshihiro Narahara ,  Masatoshi Kuroyanagi ,  Toshio Kondo

发明人： Toshihiko Igashira ,  Shuichi Matsumoto ,  Yoshihiro Narahara ,  Masatoshi Kuroyanagi ,  Toshio Kondo

IPC分类号： F02M3704

CPC分类号： F02M47/06 ,  F02M47/027 ,  F02M63/0026 ,  F02M63/0036 ,  F02M63/004 ,  F02M63/0045

摘要： In a fuel infection valve, a valve chamber of a three ways valve is selectively communicated to drain and high pressure conduits and also communicated, via a main orifice, to a control chamber for controlling valve opening and closing operations of a nozzle needle. The control chamber may be communicated via the main orifice and the valve chamber to the drain conduit or the high pressure conduit, when a valve body is driven by a piezo actuator to open or close the drain conduit and close or open the high pressure conduit. The control chamber is always communicated via a sub orifice to the high pressure conduit without bypassing the three ways valve. Accordingly, hydraulic pressure in the control chamber is slowly decreased at a valve opening time and is rapidly increased at a valve closing time so that a lift characteristic of the nozzle needle is improved.

摘要翻译： 在燃料感应阀中，三通阀的阀室选择性地连通到排水管和高压管道，并且还经由主孔口连通到用于控制喷嘴针的阀门打开和关闭操作的控制室。 当阀体由压电致动器驱动以打开或关闭排水管道并关闭或打开高压管道时，控制室可以经由主孔口和阀室连通到排水管道或高压管道。 控制室总是经由子孔连接到高压管道而不绕过三通阀。 因此，控制室中的液压在阀打开时缓慢降低，并且在关阀时快速增加，从而提高喷嘴针的提升特性。

公开(公告)号：US5393386A

公开(公告)日：1995-02-28

申请号：US168049

申请日：1993-12-15

申请人： Tetsuo Aoyama ,  Toshio Kondo ,  Yasushi Sugawara ,  Masahiro Miyake

发明人： Tetsuo Aoyama ,  Toshio Kondo ,  Yasushi Sugawara ,  Masahiro Miyake

IPC分类号： C07C209/68 ,  C07C211/63 ,  C25B3/00 ,  C25B3/02

CPC分类号： C07C209/68 ,  C07C211/63 ,  C25B3/00

摘要： The present invention-provides a method for preparing a high-purity aqueous quaternary ammonium hydroxide solution, and there is here disclosed this method for preparing the high-purity aqueous quaternary ammonium hydroxide solution which comprises reacting a quaternary ammonium organic acid salt with hydrogen peroxide, oxygen or an oxygen-containing gas in the presence of a platinum group metal catalyst to produce a quaternary ammonium inorganic acid salt, and then electrolyzing this inorganic acid salt by the use of an electrolytic tank having a cation exchange membrane.

摘要翻译： 本发明提供一种制备高纯度氢氧化季铵水溶液的方法，其中公开了这种制备高纯度季铵氢氧化铵溶液的方法，该方法包括使季铵有机酸盐与过氧化氢反应， 氧或含氧气体在铂族金属催化剂的存在下反应生成季铵无机酸盐，然后通过使用具有阳离子交换膜的电解槽电解该无机酸盐。