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    Device for purifying exhaust gas of internal combustion engine
    4.
    发明授权
    Device for purifying exhaust gas of internal combustion engine 失效
    内燃机废气净化装置

    公开(公告)号：US5902557A

    公开(公告)日：1999-05-11

    申请号：US776679

    申请日：1997-04-15

    申请人： Kouki Yotsuya ,  Takuzou Kako ,  Shogo Konya ,  Yuuji Nakashima ,  Kouji Yoshizaki ,  Kazuhiro Sakurai ,  Masahiko Ogai

    发明人： Kouki Yotsuya ,  Takuzou Kako ,  Shogo Konya ,  Yuuji Nakashima ,  Kouji Yoshizaki ,  Kazuhiro Sakurai ,  Masahiko Ogai

    IPC分类号： B01J35/00 ,  B01J35/04 ,  F01N3/20 ,  F01N3/28 ,  F01N13/02 ,  F01N3/10

    CPC分类号： F01N3/2842 ,  B01J35/0033 ,  B01J35/04 ,  F01N13/0097 ,  F01N3/2026 ,  F01N3/281 ,  F01N2260/18 ,  F01N2330/04 ,  F01N2330/06 ,  Y02T10/26

    摘要： In an electrically heated catalyst support, when necessary, reinforcing layers are formed on the inner circumference and the outer circumference of a honeycomb body. On an end surface of the honeycomb body on the downstream side of exhaust gas, there are provided a plurality of insulating ceramic bars on the outer circumferential layer and/or the inner circumferential layer in such a manner that the insulating ceramic bars cross a non-reinforcing layer of the honeycomb body. End portions of the ceramic bars are held on the reinforcing layer by pins or a ring-shaped holding member joined to an external metallic cylinder. Due to the foregoing arrangement, telescoping of the honeycomb body in the direction of gas flow and damage of the metallic foil can be prevented without obstructing the generation of heat when electricity is supplied. Accordingly, durability of the catalyst support can be remarkably enhanced.

    摘要翻译： PCT No.PCT / JP96 / 01474 Sec。 371日期1997年04月15日 102（e）日期1997年4月15日PCT提交1996年5月30日PCT公布。 出版物WO96 / 38657 日期1996年5月12日在电加热催化剂载体中，必要时在蜂窝体的内周和外周形成增强层。 在废气下游侧的蜂窝体的端面上，在外周层和/或内周层上设置有多个绝缘陶瓷棒，绝缘陶瓷棒与非绝缘陶瓷棒交叉， 蜂窝体的增强层。 陶瓷棒的端部通过销或连接到外部金属圆筒的环形保持构件保持在加强层上。 由于上述的布置，可以防止蜂窝体在气流方向的伸缩和金属箔的损坏，而不会在供电时阻碍产生热量。 因此，可显着提高催化剂载体的耐久性。

    Electrically heated catalytic converter for an engine
    5.
    发明授权
    Electrically heated catalytic converter for an engine 失效
    用于发动机的电加热催化转化器

    公开(公告)号：US5573731A

    公开(公告)日：1996-11-12

    申请号：US449325

    申请日：1995-05-24

    申请人： Kouji Yoshizaki ,  Masahiko Ogai ,  Takuzou Kako ,  Yuuji Nakajima ,  Kenji Fujino ,  Kazunori Itoh ,  Shohgo Konya ,  Keiji Sato

    发明人： Kouji Yoshizaki ,  Masahiko Ogai ,  Takuzou Kako ,  Yuuji Nakajima ,  Kenji Fujino ,  Kazunori Itoh ,  Shohgo Konya ,  Keiji Sato

    IPC分类号： F01N3/20 ,  F01N3/28

    CPC分类号： F01N3/281 ,  F01N3/2026 ,  F01N2330/02 ,  F01N2330/04 ,  Y02T10/26 ,  Y10T428/1234 ,  Y10T428/12347

    摘要： The electrically heated catalytic converter of the present invention includes a catalyst substrate, which is formed as a scroll-like cylindrical laminated assembly. The assembly is formed by laminating a thin corrugated and plain metal sheets and winding the metal sheets together around a center electrode. The outermost layer of the laminated assembly is connected to an outer electrode. The corrugated metal sheet has an insulating coating made of an alumina, and the plain metal sheet is uninsulated. Local conductive connections form between the thin metal sheets by soldering strips of zirconium solder foils between the layers of the thin metal sheets. Since zirconium has a larger reducing capability than aluminum, the alumina in the insulating coating is reduced by zirconium and precipitates at the local conductive connections. Therefore, the plain and corrugated metal sheet are electrically connected to each other at the local conductive connections. The solder foils in the respective layers are arranged in a configuration where a strip of solder foil in one layer overlaps with strips of solder foils in adjoining layers only at its ends, and does not overlap with strips of solder foils in the adjacent layers when viewed radially. Since the solder foils overlap only by a small area, electric current flowing through the local conductive connections concentrates in the overlap area and produces hot spots. The overall resistance of the electric paths can be adjusted by varying the solder strip length.

    摘要翻译： 本发明的电加热催化转化器包括形成为涡旋状圆柱形层压组件的催化剂基材。 该组件通过层叠薄的波纹状和平坦的金属片并将金属片绕在中心电极周围形成。 层叠组件的最外层与外部电极连接。 波纹金属片具有由氧化铝制成的绝缘涂层，并且平板金属片未绝缘。 通过在薄金属片的层之间焊接锆焊料箔片，在薄金属片之间形成局部导电连接。 由于锆具有比铝更大的还原能力，绝缘涂层中的氧化铝被锆还原，并在局部导电连接处沉淀。 因此，平坦且波纹状的金属片在局部导电连接处彼此电连接。 各层中的焊料箔布置成其中一层中的焊料箔条仅在其端部与相邻层中的焊料条带重叠的构造，并且在观察时不与相邻层中的焊料条带重叠 径向地 由于焊锡箔仅重叠小面积，流过局部导电连接的电流集中在重叠区域并产生热点。 可以通过改变焊料条长度来调整电路的整体电阻。

    Device for purifying exhaust gas of engine
    6.
    发明授权
    Device for purifying exhaust gas of engine 有权
    发动机排气净化装置

    公开(公告)号：US6014859A

    公开(公告)日：2000-01-18

    申请号：US136766

    申请日：1998-08-19

    申请人： Kouji Yoshizaki ,  Takaaki Itou

    发明人： Kouji Yoshizaki ,  Takaaki Itou

    IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/22 ,  F01N3/24 ,  F01N3/30 ,  F01N13/02 ,  F01N13/04 ,  F02D41/02 ,  F02D41/34 ,  F02D41/36 ,  F01N3/00

    CPC分类号： F01N3/222 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/2053 ,  F01N3/22 ,  F02D41/027 ,  F02D41/028 ,  F01N2570/04 ,  F01N3/30 ,  Y02T10/22

    摘要： An engine has a plurality of the cylinders. The cylinders are divided into a first cylinder group and a second cylinder group, and each cylinder group is connected, via a corresponding branch exhaust passage, to a common interconnecting exhaust passage. In the interconnecting exhaust passage, an exhaust gas purifying catalyst is arranged. The air-fuel ratio of the exhaust gas of the first cylinder group is made lean to feed oxygen to the exhaust gas purifying catalyst, and the air-fuel ratio of the second cylinder group is made rich to feed fuel for heating to the exhaust gas purifying catalyst, so that the oxygen and the fuel for heating react with each other to heat the exhaust gas purifying catalyst to reactivate the exhaust gas purifying catalyst when the reactivation of the exhaust gas purifying catalyst is must be performed. In each branch exhaust passage, a start catalyst is arranged.

    摘要翻译： 发动机具有多个气缸。 气缸分为第一气缸组和第二气缸组，并且每个气缸组经由相应的分支排气通道连接到共同的互连排气通道。 在相互连接的排气通道中布置排气净化催化剂。 第一气缸组的排气的空燃比被稀薄以向排气净化催化剂供给氧，并且第二气缸组的空燃比变浓以供给用于加热到废气的燃料 使得氧气和加热燃料相互反应以加热废气净化催化剂，以便在必须执行废气净化催化剂的再活化时重新激活废气净化催化剂。 在每个分支排气通道中，布置起始催化剂。

    Power supply control system for an electrically heated catalytic converter
    8.
    发明授权
    Power supply control system for an electrically heated catalytic converter 失效
    电加热催化转化器的电源控制系统

    公开(公告)号：US5966931A

    公开(公告)日：1999-10-19

    申请号：US926802

    申请日：1997-09-10

    申请人： Kouji Yoshizaki ,  Kazuhiro Sakurai ,  Masahiko Hibino

    发明人： Kouji Yoshizaki ,  Kazuhiro Sakurai ,  Masahiko Hibino

    IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N13/02 ,  H02J7/00 ,  F01N3/00

    CPC分类号： F01N3/2026 ,  F01N13/009 ,  F01N9/00 ,  Y02T10/26 ,  Y02T10/47

    摘要： In the power supply control system, an electrically heated catalytic converter (EHC) is connected to an alternator output terminal via a switch SW1, and a battery is connected to the alternator via a switch SW2 in parallel with the EHC. A control unit (ECU) for controlling the operation of the switches SW1 and SW2 is provided. When the engine has started, the ECU turns on the SW1 and turns off the SW2 to supply electric power to the EHC directly from the alternator. After the EHC is heated to the activating temperature and starts its catalytic action, the ECU turns on both the switches SW1 and SW2 to supply electric power to the EHC from the battery to maintain the temperature of the EHC. Since the electric power for raising the temperature of the EHC is supplied in the condition where the battery is disconnected from the alternator, the output voltage can be increased to a value higher than a normal output voltage for charging the battery. Therefore, a relatively large electric power can be supplied to the EHC without imposing an excessive load on the battery.

    摘要翻译： 在电源控制系统中，电加热催化转换器（EHC）经由开关SW1连接到交流发电机输出端子，并且电池经由与EHC并联的开关SW2连接到交流发电机。 提供一种用于控制开关SW1和SW2的操作的控制单元（ECU）。 当发动机起动时，ECU打开SW1并关闭SW2，直接从交流发电机向EHC供电。 在EHC被加热到激活温度并开始其催化作用之后，ECU接通开关SW1和SW2，从电池向EHC提供电力以维持EHC的温度。 由于在电池从交流发电机断开的状态下提供用于提高EHC的温度的电力，所以可以将输出电压提高到高于用于对电池充电的正常输出电压的值。 因此，可以向EHC提供相对较大的电力，而不会对电池施加过大的负载。

    Internal combustion engine and method for controlling the internal combustion engine
    10.
    发明授权
    Internal combustion engine and method for controlling the internal combustion engine 失效
    内燃机及内燃机控制方法

    公开(公告)号：US06634345B2

    公开(公告)日：2003-10-21

    申请号：US09853157

    申请日：2001-05-11

    申请人： Kouji Yoshizaki ,  Shizuo Sasaki ,  Masato Gotoh ,  Takekazu Ito

    发明人： Kouji Yoshizaki ,  Shizuo Sasaki ,  Masato Gotoh ,  Takekazu Ito

    IPC分类号： F02M25107

    CPC分类号： F02D41/024 ,  F02B3/06 ,  F02D41/0057 ,  F02D2041/0017 ,  F02D2041/0022 ,  F02M26/05 ,  F02M26/10 ,  F02M26/25 ,  F02M26/28 ,  F02M26/33 ,  F02M26/35 ,  Y02T10/26 ,  Y02T10/47

    摘要： An internal combustion engine has an EGR passage provided with an EGR control valve and a catalyst for purifying the EGR gas. When the internal combustion engine operates in a low-temperature combustion mode in which the amount of EGR gas supplied to a combustion chamber is larger than that of EGR gas with which the amount of soot produced reaches a peak, and almost no soot is produced, a controller reduces an opening amount of the exhaust gas recirculation control valve so as to increase an exhaust gas temperature, and reduces an opening amount of the throttle valve so as to suppress an increase in the amount of the EGR gas, thereby to reduce reductions in the temperature of the EGR gas and the temperature of the catalyst.

    摘要翻译： 内燃机具有设置有EGR控制阀和用于净化EGR气体的催化剂的EGR通路。 当内燃机在供给到燃烧室的EGR气体的量大于产生的烟灰量达到峰值的EGR气体的低温燃烧模式下工作，并且几乎不产生烟灰时， 控制器减少废气再循环控制阀的打开量，从而增加排气温度，并且减小节流阀的打开量，以便抑制EGR气体的量的增加，由此减少 EGR气体的温度和催化剂的温度。