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93 条记录 (耗时 0.052 秒)

    Exhaust purification system of internal combustion engine
    71.
    发明授权
    Exhaust purification system of internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号：US09494072B2

    公开(公告)日：2016-11-15

    申请号：US14116502

    申请日：2013-02-20

    申请人： Kenji Sakurai ,  Kohei Yoshida ,  Yuki Bisaiji ,  Shigeki Nakayama

    发明人： Kenji Sakurai ,  Kohei Yoshida ,  Yuki Bisaiji ,  Shigeki Nakayama

    IPC分类号： F01N3/00 ,  F01N9/00 ,  F02D41/00 ,  F01N3/10 ,  F02D41/02 ,  F02D41/14 ,  F01N3/08

    CPC分类号： F01N9/00 ,  F01N3/0842 ,  F01N3/101 ,  F01N2510/0684 ,  F01N2900/08 ,  F02D41/0052 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0806 ,  F02D2200/0814 ,  Y02T10/22

    摘要： A three way catalyst and an NOx storage catalyst are arranged in an engine exhaust passage. In an engine low load operating region, a combustion is performed under a lean air-fuel ratio, and when NOx should be released from the NOx storage catalyst, the air-fuel ratio in a combustion chamber is made rich. In an engine medium load operating region, the base air-fuel ratio is made lower as compared with the engine low load operating region, and the air-fuel ratio in the combustion chamber is made rich at a shorter period as compared with the engine low load operating region. When the operating state of the engine is switched from the engine low load operating region to the engine medium load operating region, the air-fuel ratio in the combustion chamber is temporarily made rich, and the degree of richness of the air-fuel ratio at this time is stepwise lowered.

    摘要翻译： 在发动机排气通道中布置有三元催化剂和NOx储存催化剂。 在发动机低负荷运转区域中，在稀空燃比下进行燃烧，当从NOx吸留催化剂释放NOx时，燃烧室内的空燃比变浓。 在发动机中负荷运转区域中，与发动机低负荷运转区域相比基本空燃比变低，与发动机低位相比，燃烧室中的空燃比较短 负载工作区域。 当发动机的运转状态从发动机低负荷运转区域切换到发动机中负荷运转区域时，燃烧室内的空燃比暂时变浓，空燃比的丰富度在 这一次逐步降低。

    PARTICULATE FILTER
    78.
    发明申请
    PARTICULATE FILTER 有权
    颗粒过滤器

    公开(公告)号：US20150059321A1

    公开(公告)日：2015-03-05

    申请号：US14388315

    申请日：2012-03-30

    申请人： Shigeki Nakayama ,  Hiromasa Nishioka ,  Daichi Imai ,  Hiroshi Otsuki

    发明人： Shigeki Nakayama ,  Hiromasa Nishioka ,  Daichi Imai ,  Hiroshi Otsuki

    IPC分类号： F01N3/035 ,  F01N3/022

    CPC分类号： F01N3/035 ,  B01D46/2429 ,  B01D2046/2437 ,  F01N3/022 ,  F01N3/0222 ,  F01N3/0232 ,  F01N3/103 ,  F01N2330/06 ,  F01N2330/60 ,  F01N2510/0682

    摘要： An object of the invention is to suppress deposition of ash in a wall-flow particulate filter while curtailing drops in a trapping rate of PM. To attain the above object, the invention provides a wall-flow particulate filter delimited by porous partition walls having pores of a size that allows ash and ash aggregates to pass therethrough. In the filter, a coat layer having pores smaller than the pores of the partition walls is provided, at a region of the partition walls, from an upstream end thereof up to a position before a downstream end thereof.

    摘要翻译： 本发明的一个目的是抑制灰尘沉积在壁流微粒过滤器中，同时降低PM的捕获速率。 为了实现上述目的，本发明提供一种由多孔分隔壁界定的壁流微粒过滤器，其具有允许灰分和灰分聚集体通过的尺寸的孔。 在过滤器中，在分隔壁的一个区域，从其上游端到其下游端之前的位置设置有比分隔壁的孔小的孔的涂层。