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8 条记录 (耗时 0.023 秒)

    SCR muffler
    4.
    发明授权
    SCR muffler 有权
    SCR消声器

    公开(公告)号：US07562521B2

    公开(公告)日：2009-07-21

    申请号：US10588203

    申请日：2005-02-02

    申请人： Daisuke Shirai ,  Naobumi Yamada ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    发明人： Daisuke Shirai ,  Naobumi Yamada ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/2066 ,  B01D53/9409 ,  F01N2240/20 ,  F01N2570/14 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02T10/24

    摘要： The flow of exhaust gas flowing through the SCR muffler becomes good, thus improving the efficiency of purging nitrogen oxide (NOx) contained in exhaust gas. Further, vibrations that are caused by vibrations of the vehicle, exhaust gas, and the like, to which a reducing agent, etc., supplying nozzle is subject, are suppressed or reduced, thus improving the efficiency of an SCR catalyst purging nitrogen oxide (NOx) and the durability of the reducing agent, etc., supplying nozzle. The SCR muffler comprises an SCR catalyst 1 for selectively reducing and purging nitrogen oxide (NOx) contained in exhaust gas; an exhaust pipe 2 that allows the exhaust gas to flow into the SCR catalyst; and a reducing agent, etc., supplying means 3 that supplies a reducing agent or a reducing agent precursor to the exhaust gas. A plate 4 having air holes 5 which disperse and make a flow of the exhaust gas uniform is provided downstream of the reducing agent, etc., supplying means and upstream of the SCR catalyst. The air holes 5 are arranged in only an area greater in diameter than the exhaust pipe and in a staggered fashion so as to form concentric circles. Further, the reducing agent, etc., supplying nozzle 30 as the means 3 is inserted through a plate 40 having air holes 5, and the plate is held in the exhaust pipe.

    摘要翻译： 流过SCR消声器的废气流变得良好，从而提高排气中所含的氮氧化物（NOx）的净化效率。 此外，抑制或减少由供给喷嘴的还原剂等对车辆，废气等的振动引起的振动的振动，提高SCR催化剂的净化氮氧化物的效率（ NOx）和还原剂的耐久性等。 SCR消声器包括SCR催化剂1，用于选择性地还原和净化废气中所含的氮氧化物（NOx）; 排气管2，其使废气流入SCR催化剂; 还原剂等，向排气供给还原剂或还原剂前体的供给单元3。 在还原剂等的供给装置和SCR催化剂的上游的下游设有具有分散并使排气流动均匀的气孔5的板4。 气孔5仅布置在比排气管更直径的区域中，并且以交错方式布置以形成同心圆。 此外，作为装置3的供给喷嘴30的还原剂等通过具有气孔5的板40插入，并且板被保持在排气管中。

    Scr muffler
    5.
    发明申请
    Scr muffler 有权
    Scr消声器

    公开(公告)号：US20070169467A1

    公开(公告)日：2007-07-26

    申请号：US10588203

    申请日：2005-02-02

    申请人： Daisuke Shirai ,  Naobumi Yamada ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    发明人： Daisuke Shirai ,  Naobumi Yamada ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/2066 ,  B01D53/9409 ,  F01N2240/20 ,  F01N2570/14 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02T10/24

    摘要： The flow of exhaust gas flowing through the SCR muffler becomes good, thus improving the efficiency of purging nitrogen oxide (NOx) contained in exhaust gas. Further, vibrations that are caused by vibrations of the vehicle, exhaust gas, and the like, to which a reducing agent, etc., supplying nozzle is subject, are suppressed or reduced, thus improving the efficiency of an SCR catalyst purging nitrogen oxide (NOx) and the durability of the reducing agent, etc., supplying nozzle. The SCR muffler comprises an SCR catalyst 1 for selectively reducing and purging nitrogen oxide (NOx) contained in exhaust gas; an exhaust pipe 2 that allows the exhaust gas to flow into the SCR catalyst; and a reducing agent, etc., supplying means 3 that supplies a reducing agent or a reducing agent precursor to the exhaust gas. A plate 4 having air holes 5 which disperse and make a flow of the exhaust gas uniform is provided downstream of the reducing agent, etc., supplying means and upstream of the SCR catalyst. The air holes 5 are arranged in only an area greater in diameter than the exhaust pipe and in a staggered fashion so as to form concentric circles. Further, the reducing agent, etc., supplying nozzle 30 as the means 3 is inserted through a plate 40 having air holes 5, and the plate is held in the exhaust pipe.

    摘要翻译： 流过SCR消声器的废气流变得良好，从而提高排气中所含的氮氧化物（NOx）的净化效率。 此外，抑制或减少由供给喷嘴的还原剂等对车辆，废气等的振动引起的振动的振动，提高SCR催化剂的净化氮氧化物的效率（ NOx）和还原剂的耐久性等。 SCR消声器包括SCR催化剂1，用于选择性地还原和净化废气中所含的氮氧化物（NOx）; 排气管2，其使废气流入SCR催化剂; 还原剂等，向排气供给还原剂或还原剂前体的供给单元3。 在还原剂等的供给装置和SCR催化剂的上游的下游设有具有分散并使排气流动均匀的气孔5的板4。 气孔5仅布置在比排气管更直径的区域中，并且以交错方式布置以形成同心圆。 此外，作为装置3的供给喷嘴30的还原剂等通过具有气孔5的板40插入，并且板被保持在排气管中。

    SCR muffler
    8.
    发明申请
    SCR muffler 审中-公开
    SCR消声器

    公开(公告)号：US20070175204A1

    公开(公告)日：2007-08-02

    申请号：US10588980

    申请日：2005-02-02

    申请人： Daisuke Shirai ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    发明人： Daisuke Shirai ,  Hitoshi Hiramoto ,  Isamu Kanaya ,  Hiroki Ueno

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N13/14 ,  B01D53/9431 ,  B01D2251/2062 ,  B01F3/04049 ,  B01F5/0451 ,  B01F5/0659 ,  F01N3/206 ,  F01N2260/08 ,  Y02T10/24

    摘要： An SCR muffler retains the heat of a reducing agent, etc., supplying nozzle and an exhaust pipe, thereby preventing the reduction of the efficiency of an SCR catalyst purging nitrogen oxide (NOx) even at low temperatures and improving the durability of the reducing agent, etc., supplying nozzle. The SCRmuffler comprises an SCRcatalyst 1 for selectively reducing and purging nitrogen oxide (NOx) contained in exhaust gas; an exhaust pipe 2 that allows the exhaust gas to flow into the SCR catalyst; and a reducing agent, etc., supplying nozzle 3 that supplies a reducing agent or a reducing agent precursor to the exhaust gas. The reducing agent, etc., supplying nozzle 3 or the exhaust pipe 2 is of a heat-retaining double pipe structure.

    摘要翻译： SCR消声器保持供给喷嘴和排气管的还原剂等的热量，从而即使在低温下也能够降低SCR催化剂的氮氧化物（NOx）的净化效率，提高还原剂的耐久性 等，供应喷嘴。 SCR消声器包括用于选择性地还原和净化废气中所含的氮氧化物（SCR）的SCR催化剂1; 排气管2，其使废气流入SCR催化剂; 和还原剂等，向排气供给还原剂或还原剂前体的喷嘴3。 供给喷嘴3或排气管2的还原剂等是保温双管结构。