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    Exhaust emission purifying apparatus for engine
    1.
    发明授权
    Exhaust emission purifying apparatus for engine 有权
    发动机排气净化装置

    公开(公告)号：US07849674B2

    公开(公告)日：2010-12-14

    申请号：US10572558

    申请日：2004-09-02

    申请人： Kouji Masuda ,  Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    发明人： Kouji Masuda ,  Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N3/105 ,  F01N3/106 ,  F01N3/206 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1486 ,  Y02T10/24 ,  Y02T10/47

    摘要： A NOx reduction catalyst and an ammonia slip oxidation catalyst are disposed in an exhaust system in this order, and also, an electric fan is disposed on piping which communicates an upper space of a storage tank storing therein a reducing agent with the exhaust upstream of the NOx reduction catalyst. Then, when the temperature of the ammonia slip oxidation catalyst reaches or exceeds the temperature for activating a catalyst thereof, the electric fan is operated for a predetermined period of time, so that the gas (ammonia series gas) in the upper space of the storage tank is forcibly discharged to the upstream side of the NOx reduction catalyst. Further, a discharge-forcing device, such as an electric fan or the like, forcibly discharging the gas in the upper space of the storage tank, an adsorbing device temporarily adsorbing thereto the forcibly discharged gas and an oxidation catalyst oxidizing the gas desorbed from the adsorbing device, may be disposed to the storage tank in this order.

    摘要翻译： 在排气系统中依次配置NOx还原催化剂和氨滑移式氧化催化剂，并且还将电风扇设置在将储存有还原剂的储罐的上部空间连通到上游的排气管 NOx还原催化剂。 然后，当氨滑动氧化催化剂的温度达到或超过其催化剂的活化温度时，电风扇运转预定的时间，使得储存器的上部空间中的气体（氨气系列气体） 罐被强制排出到NOx还原催化剂的上游侧。 此外，诸如电动风扇等的放电装置强制地排出储罐上部空间中的气体，临时吸附到强制排出气体的吸附装置和氧化从所述储存罐解吸的气体的氧化催化剂 吸附装置可以按顺序设置在储罐上。

    Engine exhaust emission purification apparatus
    2.
    发明申请
    Engine exhaust emission purification apparatus 有权
    发动机废气净化装置

    公开(公告)号：US20070092413A1

    公开(公告)日：2007-04-26

    申请号：US10572573

    申请日：2004-09-17

    申请人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    发明人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    IPC分类号： B01D50/00

    CPC分类号： F01N3/208 ,  F01N2240/02 ,  F01N2240/16 ,  F01N2260/024 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1486 ,  F01N2900/1811 ,  F01P2060/16 ,  F01P2060/18 ,  Y02T10/24

    摘要： An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even If precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.

    摘要翻译： 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置，其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点，并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂的供给系统不会发生，甚至如果沉淀出来 发生腐蚀物质，溶解物本身被熔化，以防止喷嘴的注入孔被堵塞。

    Engine exhaust emission purification apparatus
    3.
    发明授权
    Engine exhaust emission purification apparatus 有权
    发动机废气净化装置

    公开(公告)号：US08209958B2

    公开(公告)日：2012-07-03

    申请号：US12388419

    申请日：2009-02-18

    申请人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    发明人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N2240/02 ,  F01N2240/16 ,  F01N2260/024 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1486 ,  F01N2900/1811 ,  F01P2060/16 ,  F01P2060/18 ,  Y02T10/24

    摘要： An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even if precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.

    摘要翻译： 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置，其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点，并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂供应系统不会发生，即使是沉淀 发生腐蚀物质，溶解物本身被熔化，以防止喷嘴的注入孔被堵塞。

    Engine exhaust emission purification apparatus
    4.
    发明授权
    Engine exhaust emission purification apparatus 有权
    发动机废气净化装置

    公开(公告)号：US07614213B2

    公开(公告)日：2009-11-10

    申请号：US10572573

    申请日：2004-09-17

    申请人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    发明人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N2240/02 ,  F01N2240/16 ,  F01N2260/024 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1486 ,  F01N2900/1811 ,  F01P2060/16 ,  F01P2060/18 ,  Y02T10/24

    摘要： An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even If precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.

    摘要翻译： 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置，其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点，并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂的供给系统不会发生，甚至如果沉淀出来 发生腐蚀物质，溶解物本身被熔化，以防止喷嘴的注入孔被堵塞。

    Exhaust gas purification apparatus for engine
    6.
    发明申请
    Exhaust gas purification apparatus for engine 审中-公开
    发动机废气净化装置

    公开(公告)号：US20060248880A1

    公开(公告)日：2006-11-09

    申请号：US11392683

    申请日：2006-03-30

    申请人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    发明人： Kiminobu Hirata ,  Hisashi Akagawa ,  Shuichi Nakamura ,  Hiroki Ueno ,  Ikuo Sakai

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/2066 ,  F01N2510/00 ,  F01N2510/14 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02T10/24

    摘要： An exhaust gas purification apparatus of an engine having a reduction catalytic converter arranged in an engine exhaust gas system, for reducing and purifying nitrogen oxide by a liquid reducing agent, a reducing agent supply device controlling a flow rate of a liquid reducing agent that is supplied to the reduction catalytic converter, depending on engine operating conditions, an injection nozzle secured to the exhaust system via a flange, for injection-supplying the liquid reducing agent into exhaust gas at a position upstream of the reduction catalytic converter, and piping providing a fluid communication between the reducing agent supply device and the injection nozzle. The piping is constructed of a material made of ceramics, or water repellency treatment is applied to the inner wall of at least one of the injection nozzle and the piping.

    摘要翻译： 一种发动机的废气净化装置，具有在发动机排气系统中配置的用于通过液体还原剂还原和净化氮氧化物的还原催化转化器的排气净化装置，控制供给的液体还原剂的流量的还原剂供给装置 至所述还原催化转化器，根据发动机工作条件，经由法兰固定到所述排气系统的注射喷嘴，用于将所述液体还原剂向所述还原催化转化器的上游位置处的废气中注入供给，以及提供流体的管道 还原剂供给装置与喷嘴之间的连通。 管道由陶瓷制成的材料构成，或者对喷嘴和管道中的至少一个的内壁施加防水处理。

    Exhaust gas purification apparatus of engine
    10.
    发明授权
    Exhaust gas purification apparatus of engine 有权
    发动机废气净化装置

    公开(公告)号：US07584604B2

    公开(公告)日：2009-09-08

    申请号：US10572545

    申请日：2004-09-02

    申请人： Nobuhiko Masaki ,  Kiminobu Hirata ,  Hiroki Ueno

    发明人： Nobuhiko Masaki ,  Kiminobu Hirata ,  Hiroki Ueno

    IPC分类号： F01N3/00

    CPC分类号： F01N3/2066 ,  B01F3/04049 ,  B01F5/045 ,  B01F5/0466 ,  F01N2610/1453 ,  Y02T10/24

    摘要： For preventing clogging in an injection nozzle for supplying a reducing agent to exhaust gas flow on an upstream side of a reducing catalyst and for improving the efficiency of NOx purification processing, the injection nozzle 14 has a tip end portion 18 provided with a ring shaped protruding ridge 19 disposed on an outer peripheral surface of an exhaust gas downstream side end portion of the tip end portion 18 that is arranged substantially in parallel with an exhaust gas flow direction A inside an exhaust pipe 13, the ring shaped protruding ridge 19 being provided with injection hole or holes 20 drilled outward from the central axis of the injection nozzle 14, so that the reducing agent is ejected on the exhaust gas upstream side of the reduction catalyst, from the injection holes 20. The injection holes 20 do not directly open on a wide outer peripheral surface of the injection nozzle 14, and then when injection stops, the reducing agent does not become attached to or does not remain around the injection holes 20, or the remaining amount thereof becomes small, so that clogging of the injection holes 20 of the injection nozzle 14 is prevented, and the efficiency of NOx purification processing is improved.

    摘要翻译： 为了防止用于向还原催化剂的上游侧的废气流供给还原剂的喷嘴中的堵塞，并且为了提高NOx净化处理的效率，喷嘴14具有前端部18，其具有环状的突出部 脊部19配置在前端部18的排气下游侧端部的外周面上，该排气管下游侧端部与排气管13内的排气流动方向A大致平行地配置，环状突脊19设置有 从注射喷嘴14的中心轴线向外钻出的喷射孔或孔20，使得还原剂从喷射孔20喷射到还原催化剂的废气上游侧。喷射孔20不直接打开 注射喷嘴14的宽外周面，然后当注射停止时，还原剂不会附着或不附着 n，或者其剩余量变小，从而防止喷嘴14的喷射孔20的堵塞，并且提高NOx净化处理的效率。