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    Exhaust emission control system and method for internal combustion engines
    3.
    发明授权
    Exhaust emission control system and method for internal combustion engines 失效
    内燃机废气排放控制系统及方法

    公开(公告)号：US06911184B1

    公开(公告)日：2005-06-28

    申请号：US10110223

    申请日：2000-10-16

    申请人： Shinichi Matsunaga ,  Shuichi Kubo ,  Motohisa Saiki

    发明人： Shinichi Matsunaga ,  Shuichi Kubo ,  Motohisa Saiki

    IPC分类号： B01D53/94 ,  F01N3/08 ,  F02D41/02 ,  F02D41/14 ,  G05D7/00 ,  B01D53/34 ,  F01N3/10 ,  G05D11/00

    CPC分类号： F01N3/0842 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0871 ,  F02D41/0275 ,  F02D41/1475 ,  F02D2200/0806 ,  F02D2250/36 ,  Y02T10/24

    摘要： An NOx storage-and-reduction type catalyst is used which exhibits a saturated NOx storage amount of 5 g or more as NO2 with respect to 1 liter of a catalyst volume at 500° C., and rich spiking is controlled so that an actual NOx storage amount of the NOx storage-and-reduction type catalyst becomes 50% or less of the saturated NOx storage amount.Since the saturated NOx storage amount is large, the NOx storage amount is large even when it is 50% or less, it is possible to prolong intervals of the rich spiking. Then, since NOx storage component stores NOx preferentially into the sites which are likely to store and release NOx, a reduction efficiency is high. Therefore, while prolonging the intervals of the rich spiking and sustaining an effect of mileage improvement, it is possible to improve the reduction efficiency of NOx.

    摘要翻译： 使用NO 2 X 3存储和还原型催化剂，其表现出5g或更高的饱和的NO x X存储量为NO 2 2与 相对于在500℃下的催化剂体积为1升，并且控制丰富的尖峰，使得实施的NO x x存储和还原的储存量 型催化剂成为饱和的NO x x存储量的50％以下。 由于饱和的NO x X存储量大，所以即使在50％以下时，NO X存储量也很大，因此可以延长丰富的峰值的间隔 。 然后，由于NO x x存储部件优先将NO SUB优先存储到可能存储和释放NO x x的位置，所以还原效率高 。 因此，虽然延长了丰富的飙升的间隔并维持了里程改善的效果，但是可以提高NO x x的降低效率。

    NITRIDE SEMICONDUCTOR CRYSTAL AND PRODUCTION PROCESS THEREOF
    5.
    发明申请
    NITRIDE SEMICONDUCTOR CRYSTAL AND PRODUCTION PROCESS THEREOF 审中-公开
    氮化物半导体晶体及其生产工艺

    公开(公告)号：US20120112320A1

    公开(公告)日：2012-05-10

    申请号：US13309138

    申请日：2011-12-01

    申请人： Shuichi KUBO ,  Kenji Shimoyama ,  Kazumasa Kiyomi ,  Kenji Fujito ,  Yutaka Mikawa

    发明人： Shuichi KUBO ,  Kenji Shimoyama ,  Kazumasa Kiyomi ,  Kenji Fujito ,  Yutaka Mikawa

    IPC分类号： H01L29/20 ,  C30B25/02 ,  C30B25/18 ,  C30B23/02

    CPC分类号： C30B25/20 ,  C23C16/303 ,  C30B25/18 ,  C30B29/403 ,  H01L21/0237 ,  H01L21/02433 ,  H01L21/0254 ,  H01L21/02609

    摘要： A production process for a nitride semiconductor crystal, comprising growing a semiconductor layer on a seed substrate to obtain a nitride semiconductor crystal, wherein the seed substrate comprises a plurality of seed substrates made of the same material, at least one of the plurality of seed substrates differs in the off-angle from the other seed substrates, and a single semiconductor layer is grown by disposing the plurality of seed substrates in a semiconductor crystal production apparatus, such that when the single semiconductor layer is grown on the plurality of seed substrates, the off-angle distribution in the single semiconductor layer becomes smaller than the off-angle distribution in the plurality of seed substrates.

    摘要翻译： 一种氮化物半导体晶体的生产方法，包括在籽晶基底上生长半导体层以获得氮化物半导体晶体，其中种子基底包括由相同材料制成的多个晶种基底，多个晶种基底中的至少一个 与其他种子基板的偏角不同，并且通过将多个种子基板设置在半导体晶体制造装置中而生长单个半导体层，使得当在多个种子基板上生长单个半导体层时， 单个半导体层中的偏角分布变得小于多个种子基板中的偏角分布。

    Soot Generation Amount Estimation Apparatus For Internal Combustion Engine
    6.
    发明申请
    Soot Generation Amount Estimation Apparatus For Internal Combustion Engine 有权
    用于内燃机的烟尘发生量估计装置

    公开(公告)号：US20100058832A1

    公开(公告)日：2010-03-11

    申请号：US11792665

    申请日：2006-07-13

    申请人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

    发明人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

    IPC分类号： G01N7/00

    CPC分类号： F02D41/029 ,  F01N9/002 ,  F02B29/0406 ,  F02B37/00 ,  F02D35/025 ,  F02D41/0065 ,  F02D41/1455 ,  F02D41/1467 ,  F02D2041/0017 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/602 ,  F02M26/05 ,  F02M26/23 ,  F02M26/46 ,  Y02T10/47

    摘要： A soot generation amount estimation apparatus obtains a generation speed of a precursor of soot (accordingly, the concentration of the precursor) in consideration of formation of the precursor from fuel, thermal decomposition of the formed precursor, and formation of soot from the formed precursor, and estimates a generation speed of soot (accordingly, the concentration of soot (the generation amount of soot)) in consideration of formation of soot from the precursor, which depends on the concentration of the precursor, and oxidation of the formed soot. The apparatus employs a reaction model in which the reaction process in which soot is generated from fuel is divided into two steps; i.e., a reaction process in which a precursor is generated from fuel and a reaction process in which soot is generated from the precursor. Thus, phenomena, such as a “delay in soot generation” in the reaction process in which soot is generated from fuel, can be accurately simulated.

    摘要翻译： 烟炱发生量估计装置考虑到来自燃料的前体的形成，所形成的前体的热分解和来自所形成的前体的烟灰的形成，获得烟炱前体的生成速度（相应地，前体的浓度） 考虑到来自前体的烟灰的形成（其取决于前体的浓度）和形成的烟灰的氧化，估计烟灰的产生速度（因此，烟灰的浓度（烟灰的产生量））。 该装置采用反应模型，其中从燃料产生烟灰的反应过程分为两个步骤; 即其中从燃料产生前体的反应过程和从前体产生烟灰的反应过程。 因此，可以精确地模拟在燃料中产生烟灰的反应过程中的“烟灰产生的延迟”等现象。

    Exhaust gas purification device for an internal combustion engine
    7.
    发明授权
    Exhaust gas purification device for an internal combustion engine 有权
    内燃机用废气净化装置

    公开(公告)号：US06499294B1

    公开(公告)日：2002-12-31

    申请号：US09399287

    申请日：1999-09-17

    申请人： Kenji Katoh ,  Takaaki Itou ,  Hiroshi Tanaka ,  Shuichi Kubo ,  Yoshiyuki Mandokoro ,  Masahiro Taki

    发明人： Kenji Katoh ,  Takaaki Itou ,  Hiroshi Tanaka ,  Shuichi Kubo ,  Yoshiyuki Mandokoro ,  Masahiro Taki

    IPC分类号： F01N310

    CPC分类号： F01N3/0864 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N2250/12 ,  F01N2510/00 ,  F01N2510/06 ,  F01N2570/16 ,  F02D41/0275 ,  Y02T10/22 ,  Y02T10/24

    摘要： A converter containing a NOx absorbing and reducing catalyst is disposed in the exhaust passage of an internal combustion engine. The upstream half portion (portion of the inlet side) of the substrate of the NOx absorbing and reducing catalyst in the converter carries the oxygen storage component that absorbs oxygen in the exhaust gas when the air-fuel ratio of the exhaust gas is lean and releases the absorbed oxygen when the air-fuel ratio of the exhaust gas flowing in is rich in addition to carrying the NOx absorbing and reducing catalyst. After NOx is absorbed by the NOx absorbing and reducing catalyst as a result of operating the engine at a lean air-fuel ratio, the engine is operated at a rich air-fuel ratio, so that NOx is released from the NOx absorbing and reducing catalyst and is purified by reduction. Here, oxygen is released from the oxygen storage component carried by the upstream half portion of the substrate and is reacted with the H2 and CO components in the exhaust gas, so that the temperature of the NOx absorbing and reducing catalyst is raised within short periods of time due to the heat of reaction. Therefore, the catalyst exhibits increased activity and the NOx absorbing and reducing catalyst exhibits improved NOx purification capability.

    摘要翻译： 含有NOx吸收和还原催化剂的转化器设置在内燃机的排气通道中。 转换器中的NOx吸收还原催化剂的基板的上游半部（入口侧的部分）在废气的空燃比稀的时候携带吸收废气中的氧的储氧成分，释放 除了携带NOx吸收还原催化剂之外，当排出的废气的空燃比富含时，吸收的氧也富含。 由于作为发动机以稀薄的空燃比运转，NO x吸收还原催化剂吸收了NOx之后，发动机的空燃比浓度较高，使NO x从NOx吸收还原催化剂 并通过还原进行纯化。 这里，从由基板的上游半部分承载的储氧成分中释放出氧，并与废气中的H 2和CO成分反应，使NOx吸收还原催化剂的温度在短时间内升高 时间由于反应的热量。 因此，催化剂表现出增加的活性，NOx吸收和还原催化剂表现出提高的NOx净化能力。

    Soot generation amount estimation apparatus for internal combustion engine
    10.
    发明授权
    Soot generation amount estimation apparatus for internal combustion engine 有权
    用于内燃机的烟尘产生量估计装置

    公开(公告)号：US07930922B2

    公开(公告)日：2011-04-26

    申请号：US11792665

    申请日：2006-07-13

    申请人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

    发明人： Tomomi Onishi ,  Takao Fukuma ,  Shigeki Nakayama ,  Yoshiki Takatori ,  Shuichi Kubo ,  Satoshi Yamazaki

    IPC分类号： G01N7/00

    CPC分类号： F02D41/029 ,  F01N9/002 ,  F02B29/0406 ,  F02B37/00 ,  F02D35/025 ,  F02D41/0065 ,  F02D41/1455 ,  F02D41/1467 ,  F02D2041/0017 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/602 ,  F02M26/05 ,  F02M26/23 ,  F02M26/46 ,  Y02T10/47

    摘要： A soot generation amount estimation apparatus obtains a generation speed of a precursor of soot (accordingly, the concentration of the precursor) in consideration of formation of the precursor from fuel, thermal decomposition of the formed precursor, and formation of soot from the formed precursor, and estimates a generation speed of soot (accordingly, the concentration of soot (the generation amount of soot)) in consideration of formation of soot from the precursor, which depends on the concentration of the precursor, and oxidation of the formed soot. The apparatus employs a reaction model in which the reaction process in which soot is generated from fuel is divided into two steps; i.e., a reaction process in which a precursor is generated from fuel and a reaction process in which soot is generated from the precursor. Thus, phenomena, such as a “delay in soot generation” in the reaction process in which soot is generated from fuel, can be accurately simulated.

    摘要翻译： 烟炱发生量估计装置考虑到来自燃料的前体的形成，所形成的前体的热分解和来自所形成的前体的烟灰的形成，获得烟炱前体的生成速度（相应地，前体的浓度） 并且考虑到来自前体的烟灰的形成（其取决于前体的浓度）和形成的烟灰的氧化，估计烟灰的产生速度（因此，烟灰的浓度（烟灰的产生量））。 该装置采用反应模型，其中从燃料产生烟灰的反应过程分为两个步骤; 即其中从燃料产生前体的反应过程和从前体产生烟灰的反应过程。 因此，可以精确地模拟在燃料中产生烟灰的反应过程中的“烟灰产生的延迟”等现象。