公开(公告)号：US06729122B2

公开(公告)日：2004-05-04

申请号：US10235887

申请日：2002-09-06

申请人： Norihito Watanabe ,  Kenji Abe ,  Yasuyuki Miyahara ,  Masao Komine ,  Kenichi Ohmori ,  Tadashi Sato ,  Takashi Haga

发明人： Norihito Watanabe ,  Kenji Abe ,  Yasuyuki Miyahara ,  Masao Komine ,  Kenichi Ohmori ,  Tadashi Sato ,  Takashi Haga

IPC分类号： F02M2506

CPC分类号： F01N3/0814 ,  F01N3/0835 ,  F01N3/0878 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2370/04 ,  F02M26/15 ,  Y02T10/22

摘要： An exhaust gas purification system of internal combustion engine having a branch pipe coupled to the exhaust pipe through a flange and having a first cylindrical case constituting a bypass exhaust gas passage and a second cylindrical case constituting a main exhaust gas passage, whose flow are switched by a switch-over valve by selectively connecting the exhaust pipe to the main exhaust gas passage or the bypass exhaust gas passage, and an adsorbent installed in the bypass exhaust gas passage for adsorbing unburned components of the exhaust gas. The unburned exhaust gas components are recirculated to the air intake system through an EGR pipe. In the system, an inlet of the EGR pipe is formed integrally with the branch pipe flange, thereby enabling to prevent increase in fabrication step and cost and further to facilitate maintenance. Moreover, the first cylindrical case is made displace relative to the second cylindrical case. This can prevent the deformation due to the thermal stress which could occur when they are different in temperature.

摘要翻译： 一种内燃机的废气净化系统，其具有通过凸缘与排气管连接的分支管，具有构成旁通废气通道的第一圆筒形壳体和构成主排气通道的第二圆筒形壳体，其流动由 通过选择性地将排气管连接到主排气通道或旁通废气通道的切换阀以及安装在旁路排气通道中用于吸附排气的未燃烧部件的吸附剂。 未燃烧的废气组分通过EGR管再循环到进气系统。 在该系统中，EGR管的入口与分支管法兰一体地形成，从而能够防止制造步骤和成本的增加，并且进一步便于维护。 此外，使第一圆柱形壳体相对于第二圆柱形壳体移位。 这可以防止由于在温度不同时可能发生的热应力引起的变形。

公开(公告)号：US06769247B2

公开(公告)日：2004-08-03

申请号：US10231476

申请日：2002-08-30

申请人： Norihito Watanabe ,  Yasuyuki Miyahara ,  Tadashi Sato ,  Masao Komine ,  Kenichi Ohmori ,  Kenji Abe ,  Tetsuo Endo

发明人： Norihito Watanabe ,  Yasuyuki Miyahara ,  Tadashi Sato ,  Masao Komine ,  Kenichi Ohmori ,  Kenji Abe ,  Tetsuo Endo

IPC分类号： F01N700

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F02D9/04

摘要： An exhaust gas valve device in an internal combustion engine, including a first bearing member mounted between a valve shaft and a valve body with one end of the valve shaft turnably fitted into the first bearing member, a second bearing member mounted between the valve shaft and the valve body with the other end of the valve shaft turnably passed through the second bearing member, and an actuator connected to the other end of the valve shaft protruding from the second bearing member. The valve body, the valve shaft and the first and second bearing members are formed of metal materials having equivalent thermal expansion coefficients; the first and second bearing members are press-fitted into said valve body; and a skin of a graphite-based solid lubricant is formed on a surface of the valve shaft in regions corresponding to the first and second bearing members. The concentricity accuracy of the pair of bearing members supporting the opposite ends of the valve shaft is enhanced, while avoiding an increase in the number of parts, thereby preventing the generation of noise and reducing the friction.

摘要翻译： 一种内燃机中的排气阀装置，包括安装在阀轴和阀体之间的第一轴承构件，阀体的一端可转动地装配在第一轴承构件中，第二轴承构件安装在阀轴和 阀体的另一端可旋转地穿过第二轴承构件，以及连接到从第二轴承构件突出的阀轴的另一端的致动器。 阀体，阀轴以及第一和第二轴承部件由具有等效的热膨胀系数的金属材料形成; 第一和第二轴承构件压配合到所述阀体中; 并且在对应于第一和第二轴承构件的区域中的阀轴的表面上形成石墨基固体润滑剂的表皮。 支撑阀轴的相对端的一对支承构件的同心度精度得到提高，同时避免了零件数量的增加，从而防止产生噪音并降低了摩擦。

公开(公告)号：US06772586B2

公开(公告)日：2004-08-10

申请号：US10310945

申请日：2002-12-06

申请人： Yasuyuki Miyahara ,  Kenichi Ohmori ,  Norihito Watanabe ,  Masao Komine ,  Kenji Abe

发明人： Yasuyuki Miyahara ,  Kenichi Ohmori ,  Norihito Watanabe ,  Masao Komine ,  Kenji Abe

IPC分类号： F01N300

CPC分类号： F02D41/222 ,  F02D2200/0418 ,  Y02T10/40

摘要： A humidity sensor is disposed near an HC adsorbent in an exhaust system of an internal combustion engine. After the internal combustion engine is shut off, it is detected whether or not the humidity sensor has failed based on the value of the humidity detected by the humidity sensor when the detected value of the humidity is substantially constant, by determining whether or not the detected value of the humidity falls in a range between upper and lower limit thresholds that are set depending on the temperature near the HC adsorbent. It is stably and easily detected whether or not the humidity sensor disposed near the HC adsorbent in the exhaust system of the internal combustion engine has failed.

摘要翻译： 湿度传感器设置在内燃机的排气系统中的HC吸附剂附近。 在关闭内燃机之后，通过确定检测到的湿度传感器是否检测到的湿度传感器的湿度基本上恒定时，基于湿度传感器检测到的湿度的值，检测出湿度传感器是否发生故障 湿度值落在根据HC吸附剂附近的温度设定的上限和下限阈值之间的范围内。 能够稳定且容易地检测设置在内燃机的排气系统中的HC吸附剂附近的湿度传感器是否发生故障。

公开(公告)号：US06641303B2

公开(公告)日：2003-11-04

申请号：US10231241

申请日：2002-08-30

申请人： Hideharu Yamazaki ,  Tadashi Sato ,  Takashi Haga ,  Yasuyuki Miyahara ,  Masaki Ueno ,  Kei Machida

发明人： Hideharu Yamazaki ,  Tadashi Sato ,  Takashi Haga ,  Yasuyuki Miyahara ,  Masaki Ueno ,  Kei Machida

IPC分类号： G01K1300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/2053 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2900/0422 ,  F02D41/1444 ,  F02D41/1456 ,  F02D41/1494 ,  F02D41/222 ,  F02D2200/0418 ,  G01N27/121 ,  Y02T10/40 ,  Y02T10/47

摘要： There is provided a temperature control system for a humidity sensor, which is capable of eliminating impurities attached to a sensor element of the sensor efficiently and sufficiently while preventing the sensor element from being cracked due to heat generated by a heater in a state of condensation formed thereon, and suppressing attachment of impurities to the sensor element, thereby making it possible to preserve an excellent detection accuracy of the humidity sensor. The temperature control system controls the temperature of the sensor element of the humidity sensor arranged in an exhaust pipe for detecting humidity within the exhaust pipe. A heater heats the sensor element. The temperature of the sensor element is detected. When the detected temperature of the sensor element is higher than a predetermined temperature, said heater is operated.

摘要翻译： 提供了一种用于湿度传感器的温度控制系统，其能够有效且充分地消除附着在传感器元件上的杂质，同时防止传感器元件由于在冷凝状态下由加热器产生的热而破裂 并且抑制杂质与传感器元件的附着，从而能够保持湿度传感器的良好的检测精度。 温度控制系统控制布置在用于检测排气管内的湿度的排气管中的湿度传感器的传感器元件的温度。 加热器加热传感器元件。 检测传感器元件的温度。 当传感器元件的检测温度高于预定温度时，操作所述加热器。

公开(公告)号：US06581370B2

公开(公告)日：2003-06-24

申请号：US09985764

申请日：2001-11-06

申请人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Takashi Haga ,  Tadashi Sato ,  Yasuyuki Miyahara

发明人： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Takashi Haga ,  Tadashi Sato ,  Yasuyuki Miyahara

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0878 ,  F01N11/00 ,  F01N2550/06 ,  F01N2560/028 ,  F02D41/1439 ,  F02D41/1441 ,  F02D41/222 ,  F02D2200/0418 ,  G01N33/007 ,  Y02T10/20 ,  Y02T10/40 ,  Y02T10/47

摘要： A failure determination device that detects the humidity of exhaust gases from an internal combustion engine and a control system for an exhaust passage changeover valve, which can switch the changeover valve with appropriate timing, thereby enabling sufficient purification of exhaust gases. An operating condition of the engine is detected. Based on the detected operating condition of the engine, it is determined whether the engine is in an operating condition in which failure determination of the humidity sensor can be executed. It is determined whether the humidity sensor has failed, based on a result of detection by the humidity sensor, when it has been judged that the failure determination of the humidity sensor can be executed.

摘要翻译： 一种故障判定装置，其检测来自内燃机的废气的湿度和排气通道切换阀的控制系统，其能够以适当的时刻切换切换阀，从而能够充分净化废气。 检测发动机的运行状态。 基于检测到的发动机的运转状况，判定发动机是否处于能够执行湿度传感器的故障判定的运转状态。 当判断出可以执行湿度传感器的故障判定时，基于湿度传感器的检测结果来确定湿度传感器是否发生故障。

公开(公告)号：US06935099B2

公开(公告)日：2005-08-30

申请号：US10484817

申请日：2002-08-23

申请人： Yasuyuki Miyahara ,  Masahiro Sato ,  Masaki Ueno ,  Kenichi Ohmori

发明人： Yasuyuki Miyahara ,  Masahiro Sato ,  Masaki Ueno ,  Kenichi Ohmori

IPC分类号： F01N3/08 ,  F01N11/00 ,  F01N3/00

CPC分类号： F01N3/0835 ,  F01N3/0807 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2570/12 ,  Y02T10/20 ,  Y02T10/47

摘要： After an engine 1 has started to operate, a state in which a humidity represented by an output of a humidity sensor 19 downstream of a hydrocarbon adsorbent 7 takes a minimum value is sequentially searched for, and a timing at which the humidity changes from the minimum value to a monotonously increasing state is grasped as a timing at which the adsorption of moisture and hydrocarbons by the hydrocarbon adsorbent 7 is saturated. After the engine has started to operate, a parameter representing an integrated amount of moisture given to the hydrocarbon adsorbent 7 by the exhaust gas is sequentially generated, and a deteriorated state of the hydrocarbon adsorbent 7 is evaluated based on the value of the parameter at the timing at which the adsorption is saturated. The deteriorated state of the hydrocarbon absorbent can thus accurately be evaluated by an inexpensive arrangement which employs the humidity sensor 19 disposed downstream of the hydrocarbon adsorbent 7.

摘要翻译： 在发动机1开始运行之后，依次搜索由碳氢化合物吸附剂7下游的湿度传感器19的输出表示的湿度为最小值的状态，以及湿度从最小值变化的时刻 将作为单一增加状态的值作为将烃类吸附剂7吸收水分和烃类饱和的时刻进行掌握。 在发动机开始运转之后，依次产生表示通过废气赋予烃类吸附剂7的一体化的水分量的参数，根据该吸附剂7的参数值，评价烃吸附剂7的劣化状态 吸附饱和的时间。 因此，可以通过使用设置在烃吸附剂7的下游的湿度传感器19的廉价的装置来精确地评价烃类吸收剂的劣化状态。

公开(公告)号：US06799420B2

公开(公告)日：2004-10-05

申请号：US10268975

申请日：2002-10-11

申请人： Masaki Ueno ,  Tetsuo Endo ,  Hideharu Yamazaki ,  Shiro Takakura ,  Kei Machida ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Tetsuo Endo ,  Hideharu Yamazaki ,  Shiro Takakura ,  Kei Machida ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  B01D53/0454 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0878 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/028 ,  Y02T10/47

摘要： A temperature sensor is disposed near an HC adsorbent in an exhaust system of an internal combustion engine. After the internal combustion engine is shut off, a deteriorated state of the HC adsorbent is evaluated based on a value of the humidity detected by a humidity sensor. The deteriorated state of the HC adsorbent is evaluated by comparing the detected value of the humidity with a threshold established depending on the temperature state near the HC adsorbent. In evaluating deteriorated state of the HC adsorbent, a change in the output characteristics of the humidity sensor depending on its temperature state is compensated for.

摘要翻译： 温度传感器设置在内燃机的排气系统内的HC吸附剂附近。 在关闭内燃机之后，基于由湿度传感器检测到的湿度的值来评价HC吸附剂的劣化状态。 通过将检测到的湿度值与根据HC吸附剂附近的温度状态建立的阈值进行比较来评价HC吸附剂的劣化状态。 在评估HC吸附剂的劣化状态时，补偿根据其温度状态的湿度传感器的输出特性的变化。

公开(公告)号：US06820413B2

公开(公告)日：2004-11-23

申请号：US10235815

申请日：2002-09-06

申请人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Yoshihisa Iwaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N2550/03 ,  F02D41/0245 ,  F02D41/1446 ,  F02D41/1495 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02P5/1506 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： A state determining apparatus for an exhaust gas purifier is provided for accurately determining the state of the exhaust gas purifier including an adsorbent for adsorbing hydrocarbons, including a deterioration of the adsorbent, in accordance with an ignition time of an internal combustion engine. The state determining apparatus for an exhaust gas purifier is arranged in an exhaust system of the internal combustion engine for determining the state of the exhaust gas purifier including the adsorbent capable of adsorbing hydrocarbons and moisture in exhaust gas. The state determining apparatus has a humidity sensor arranged at a location downstream of the adsorbent in the exhaust system for detecting the humidity of exhaust gases, and an ECU for determining the state of the adsorbent in accordance with the humidity of exhaust gases detected by the humidity sensor, and the ignition time of the internal combustion engine.

摘要翻译： 提供一种用于排气净化器的状态确定装置，用于根据内燃机的点火时间精确地确定包括用于吸附烃的吸附剂的废气净化器的状态，包括吸附剂的劣化。 用于排气净化器的状态判定装置设置在内燃机的排气系统中，用于确定包括能够吸附废气中的碳氢化合物和水分的吸附剂的废气净化器的状态。 状态判定装置具有布置在排气系统中用于检测废气湿度的吸附剂下游位置处的湿度传感器，以及用于根据湿度检测到的废气湿度来确定吸附剂的状态的ECU 传感器和内燃机的点火时间。

公开(公告)号：US06792749B2

公开(公告)日：2004-09-21

申请号：US10449393

申请日：2003-06-02

申请人： Masaki Ueno ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

发明人： Masaki Ueno ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/101 ,  F01N3/0878 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2560/028 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  Y02T10/22 ,  Y02T10/47

摘要： An exhaust gas purifying apparatus for an internal combustion engine is provided for switching a switching valve at an optimal timing in accordance with an actual activated state of a catalyzer to achieve an optimal exhaust gas characteristic. The exhaust gas purifying apparatus comprises a catalyzer disposed in an exhaust system of the internal combustion engine, an adsorbent filled in a second passage circumventing a first passage in the exhaust system for adsorbing hydrocarbons within exhaust gases, a switching valve operable to switch between an open position for opening the first passage and a close position for closing the first passage, an ECU for detecting a temperature state of the exhaust system upon start of the internal combustion engine, and calculating the calory of exhaust gases discharged after the start of the internal combustion engine, and a switching valve driver for driving the switching valve to the close position upon start of the internal combustion engine, and driving the switching valve to the open position in accordance with the detected start-time temperature state of the exhaust system, and the calculated post-start exhaust gas calory.

摘要翻译： 提供一种用于内燃机的排气净化装置，用于根据催化器的实际激活状态在最佳定时切换切换阀，以实现最佳废气特性。 排气净化装置包括设置在内燃机的排气系统中的催化剂，填充在围绕排气系统中的第一通道的吸附在排气中的碳氢化合物的第二通道中的吸附剂，可操作以在开放 用于打开第一通道的位置和用于关闭第一通道的关闭位置; ECU，用于在内燃机启动时检测排气系统的温度状态，以及计算在内燃开始之后排出的废气的热量 发动机和用于在内燃机启动时将切换阀驱动到关闭位置的切换阀驱动器，并且根据检测到的排气系统的起动时间温度状态将切换阀驱动到打开位置，并且 计算起动后废气的卡路里。

公开(公告)号：US06923849B2

公开(公告)日：2005-08-02

申请号：US10608156

申请日：2003-06-30

申请人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

发明人： Masaki Ueno ,  Hideharu Yamazaki ,  Shiro Takakura ,  Yasuyuki Miyahara ,  Tetsuo Endo

IPC分类号： F02D45/00 ,  B01D53/04 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24

CPC分类号： B01D53/0454 ,  Y10S55/30

摘要： A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of exhaust gases to accurately determine the state of the hydrocarbon adsorbent, including a deterioration thereof, irrespective of the change in the flow rate of exhaust gases. The hydrocarbon adsorbent state determining apparatus determines the state of a hydrocarbon adsorbent disposed in an exhaust system of an internal combustion engine for adsorbing hydrocarbons and moisture within exhaust gases. The hydrocarbon adsorbent state determining apparatus comprises a downstream humidity sensor for detecting the humidity of exhaust gases which have passed through the hydrocarbon adsorbent, a flow velocity parameter detector for detecting a flow velocity parameter indicative of a flow velocity of the exhaust gases, and an ECU for determining the state of the hydrocarbon adsorbent in accordance with the detected humidity of the exhaust gases and the flow velocity parameter.

摘要翻译： 提供一种烃吸附剂状态确定装置，用于补偿烃吸附剂由于废气流速的变化而吸收水分的能力，从而准确地确定烃吸附剂的状态，包括其劣化，而不管 废气流量的变化。 碳氢化合物吸附剂状态决定装置确定在内燃机的排气系统中设置的用于吸附废气中的碳氢化合物和水分的烃类吸附剂的状态。 碳氢化合物吸附剂状态确定装置包括用于检测通过烃类吸附剂的废气湿度的下游湿度传感器，用于检测表示废气流速的流速参数的流速参数检测器，以及ECU 用于根据检测到的废气湿度和流速参数确定烃类吸附剂的状态。