公开(公告)号：US08490389B2

公开(公告)日：2013-07-23

申请号：US13047129

申请日：2011-03-14

Applicant: Masakazu Yano ,  Kiminobu Hirata ,  Nobuhiko Masaki

Inventor： Masakazu Yano ,  Kiminobu Hirata ,  Nobuhiko Masaki

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F01N3/36 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2610/08 ,  F01N2610/14 ,  Y02T10/24

Abstract: In an exhaust gas purification apparatus for an engine includes a bubble generation device, the bubble generation device for mixing nano-sized to micro-sized bubbles into a liquid reducing agent or a precursor thereof injection-supplied from an injection nozzle is disposed in a reducing agent supply system running from a reducing agent tank to the injection nozzle. When the liquid reducing agent or the precursor thereof is injection-supplied from the injection nozzle, the liquid reducing agent or the precursor thereof is divided by bubbles, and the bubbles are radically inflated and burst by a pressure change and a temperature change at the time of injection-supplying, so that microparticulation of the liquid reducing agent or the precursor thereof is facilitated.

Abstract translation: 在用于发动机的废气净化装置中，包括气泡生成装置，将从纳米尺寸的微小气泡混合成液体还原剂的气泡生成装置或其从注射喷嘴注入的前体配置在还原 代理商供应系统从还原剂罐运行到喷嘴。 当液体还原剂或其前体从注射喷嘴注入时，液体还原剂或其前体被气泡分开，并且气泡由于当时的压力变化和温度变化而发生膨胀和爆裂 的注入供给，使得液体还原剂或其前体的微粒化变得容易。

公开(公告)号：US08028516B2

公开(公告)日：2011-10-04

申请号：US12390164

申请日：2009-02-20

Applicant: Kouji Masuda ,  Kiminobu Hirata ,  Nobuhiko Masaki

Inventor： Kouji Masuda ,  Kiminobu Hirata ,  Nobuhiko Masaki

IPC: F01N3/00

CPC classification number: F01N3/208 ,  F01N3/103 ,  F01N3/2013 ,  F01N3/2066 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2470/18 ,  F01N2550/05 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2900/08 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: In order to suppress deposition of constituent of a reducing agent (dissolved matter) in an exhaust passage of an engine enhancing an elimination rate of NOx even when temperature of an exhaust emission from the engine is low, an exhaust emission purifying apparatus is provided with an electro-generative-heat carrier provided on an upstream side of an injection nozzle that supplies the reducing agent into the exhaust emission on upstream side of a reduction catalyst in an exhaust pipe, the exhaust emission being heated to a temperature equal to or higher than a melting point of the dissolved matter whereby deposition of the dissolved matter on an inner wall surface of the exhaust pipe is suppressed to effectively use the supplied reducing agent for catalytic reduction reaction, even when the exhaust emission temperature is lower than the melting point of the dissolved matter of the reducing agent.

Abstract translation: 为了抑制即使在来自发动机的排气的温度低的情况下也能够提高NOx的消除率的发动机的排气通路中的还原剂（溶解物质）的成分的沉积，所以排气净化装置具备 设置在喷射喷嘴的上游侧的电生热载体，其将还原剂供给到排气管中的还原催化剂的上游侧的废气排放中，将排气排放加热至等于或高于 溶解物的熔点，由此抑制溶解物在排气管的内壁面上的沉积，即使排气排出温度低于溶解的熔点，也能有效地利用供给的还原剂进行催化还原反应 还原剂的物质。

公开(公告)号：US07849674B2

公开(公告)日：2010-12-14

申请号：US10572558

申请日：2004-09-02

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

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

IPC: F01N3/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070092413A1

公开(公告)日：2007-04-26

申请号：US10572573

申请日：2004-09-17

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

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

IPC: B01D50/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070079601A1

公开(公告)日：2007-04-12

申请号：US10576720

申请日：2004-09-13

Applicant: Kiminobu Hirata ,  Takehiro Esaka

Inventor： Kiminobu Hirata ,  Takehiro Esaka

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F01N11/00 ,  F01N3/2066 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/10 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/1493 ,  F01N2900/0422 ,  F02B37/00 ,  F02D41/1495 ,  F02D41/22 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/40 ,  Y02T10/47

Abstract: When an abnormality occurred in a SCR device is detected, the output of an engine is restricted. To this end, in one embodiment, at the time of an abnormality occurrence, a map adopted for calculating a fuel injection quantity is switched from that for a normal time (S407). Further, as the abnormality to be detected, the clogging of an injection nozzle, the dilution of urea water stored in a tank, or the like is adopted.

Abstract translation: 当检测到SCR装置发生异常时，发动机的输出受到限制。 为此，在一个实施例中，在异常发生时，将用于计算燃料喷射量的图用于正常时间（S 407）。 此外，作为要检测的异常，采用喷嘴的堵塞，储存在罐中的尿素水的稀释等。

公开(公告)号：US08011176B2

公开(公告)日：2011-09-06

申请号：US11495636

申请日：2006-07-31

Applicant: Kiminobu Hirata ,  Nobuhiko Masaki ,  Hisashi Akagawa ,  Yuji Yajima

Inventor： Kiminobu Hirata ,  Nobuhiko Masaki ,  Hisashi Akagawa ,  Yuji Yajima

IPC: F01N3/00

CPC classification number: F01N3/2066 ,  B01D53/9409 ,  F01N3/206 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1453 ,  F01N2610/1466 ,  F01N2610/1486 ,  F01N2900/1811 ,  F01N2900/1818 ,  Y02T10/24

Abstract: In an exhaust emission purifying apparatus for an internal combustion engine, for adding a reducing agent for NOx to the exhaust gas to thereby purify NOx in the exhaust gas, the mixing of the reducing agent injected by an injection nozzle with the exhaust gas is accelerated. To this end, in the apparatus of the present invention, the injection nozzle for the urea water is disposed to be opposite to the flow of the exhaust gas, or to face upward in a vertical direction.

Abstract translation: 在用于内燃机的排气净化装置中，为了将排气中的NOx添加到废气中，为了净化排气中的NOx，能够加速由喷嘴喷射的还原剂与废气的混合。 为此，在本发明的装置中，尿素水的注入喷嘴配置成与排气的流动相反，或者在垂直方向上面向上。

公开(公告)号：US07975470B2

公开(公告)日：2011-07-12

申请号：US11880858

申请日：2007-07-23

Applicant: Kiminobu Hirata ,  Nobuhiko Masaki ,  Masakazu Yano

Inventor： Kiminobu Hirata ,  Nobuhiko Masaki ,  Masakazu Yano

IPC: F01N3/00

CPC classification number: F01N11/00 ,  B01D53/9431 ,  B01D2251/20 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2900/0418 ,  F01N2900/08 ,  F01N2900/102 ,  F01N2900/1812 ,  F01N2900/1814 ,  F01N2900/1824 ,  Y02C20/10 ,  Y02T10/47

Abstract: In relation to an exhaust gas purification system that mixes a liquid reducing agent with air and injection-supplies this mixture into an exhaust gas flowing on an upstream side of a reduction catalyst (20) to thereby effect reduction purification of NOx in exhaust gas, a technical attention is directed to the relation of respective elements of; the travel distance, the fuel consumption, the air consumption, or the running time and the like, and the liquid reducing agent consumption, to constitute a configuration such that a continual monitor as to whether the injection condition of liquid reducing agent is normal or abnormal is executed by judging whether or not the amount of liquid reducing agent consumed for a predetermined travel distance, a predetermined fuel consumption, a predetermined air consumption, or a predetermined running time, is within a predetermined range.

Abstract translation: 关于将液体还原剂与空气混合并将该混合物注入到在还原催化剂（20）的上游侧流动的排气的排气净化系统，从而进行废气中的NOx的还原净化， 技术上的注意力是针对各自元素的关系; 行驶距离，燃料消耗量，空气消耗量或运行时间等以及液体还原剂消耗量，构成对连续监视液体还原剂的注入状态是正常还是异常的结构 通过判断在预定行驶距离，预定燃料消耗，预定空气消耗或预定运行时间消耗的液体还原剂的量是否在预定范围内来执行。

公开(公告)号：US20110154808A1

公开(公告)日：2011-06-30

申请号：US13041672

申请日：2011-03-07

Applicant: Kiminobu HIRATA ,  Nobuhiko MASAKI ,  Masakazu YANO

Inventor： Kiminobu HIRATA ,  Nobuhiko MASAKI ,  Masakazu YANO

IPC: F01N3/035

CPC classification number: F01N3/0821 ,  B01D53/9431 ,  B01D53/944 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2251/21 ,  F01N3/023 ,  F01N3/029 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2510/02 ,  F01N2610/02 ,  Y02T10/24

Abstract: A DPF disposed in an exhaust passage of a diesel engine is coated with a selective reducing catalyst, for selectively reducing and purifying NOx by using a reducing agent, and a thin film, having fine pores of size for allowing passage of the NOx and preventing passage of PM, in this order. In regeneration treatment of a DPF, the thin film prevents direct transmission of combustion heat of the PM to the selective reducing catalyst and suppresses a temperature rise of the selective reducing catalyst to thereby suppress deterioration of an active component.

Abstract translation: 设置在柴油发动机的排气通道中的DPF涂覆有选择性还原催化剂，用于通过使用还原剂选择性还原和净化NOx，以及具有细孔尺寸以允许NOx通过并防止通过的薄膜 的PM，按顺序。 在DPF的再生处理中，薄膜防止了PM的燃烧热直接传递到选择还原催化剂，抑制了选择还原催化剂的升温，从而抑制了有效成分的劣化。

公开(公告)号：US07784273B2

公开(公告)日：2010-08-31

申请号：US11643710

申请日：2006-12-22

Applicant: Isamu Kanaya ,  Koutarou Honda ,  Tomoko Amemiya ,  Kiminobu Hirata ,  Nobuhiko Masaki ,  Shinya Obana ,  Daisuke Shirai ,  Hitoshi Hiramoto ,  Naobumi Yamada

Inventor： Isamu Kanaya ,  Koutarou Honda ,  Tomoko Amemiya ,  Kiminobu Hirata ,  Nobuhiko Masaki ,  Shinya Obana ,  Daisuke Shirai ,  Hitoshi Hiramoto ,  Naobumi Yamada

IPC: F01N3/00

CPC classification number: F01N3/206 ,  B01D53/9431 ,  B01D2251/2067 ,  B01F3/04049 ,  B01F5/0451 ,  B01F5/0616 ,  B01F5/0646 ,  B01F5/0653 ,  F01N3/2066 ,  F01N3/2892 ,  F01N13/009 ,  F01N2240/20 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02T10/24

Abstract: An exhaust emission purifying apparatus has a NOx reduction catalytic converter in an exhaust passage of an engine, for purifying nitrogen oxides in the exhaust gas by reduction with urea aqueous solution; an injection nozzle injecting the urea solution toward an exhaust upstream side of the converter in the exhaust passage; and fins disposed on an exhaust upstream side of an injection position of the urea solution in the injection nozzle, for generating a spiral swirling flow of the gas swirling about a center corresponding to the central axis of an exhaust pipe. The swirling flow generated in the exhaust gas prior to the injection-supply of the urea aqueous solution promotes mixing of the solution with the gas to thereby promote the hydrolysis of the urea solution. And the exhaust gas and ammonia generated from the urea solution are uniformly mixed together.

Abstract translation: 排气净化装置在发动机的排气通路中具有NOx还原催化转化器，用尿素水溶液还原来净化废气中的氮氧化物; 喷射喷嘴，在所述排气通路中朝向所述转换器的排气上游侧喷射所述尿素溶液; 以及翅片，其设置在所述喷射喷嘴中的所述尿素溶液的喷射位置的排气上游侧，用于产生围绕与排气管的中心轴对应的中心旋转的气体的螺旋旋转流。 在尿素水溶液的注入供给之前在排气中产生的涡流促进溶液与气体的混合，从而促进尿素溶液的水解。 将由尿素溶液产生的废气和氨均匀地混合在一起。

公开(公告)号：US07584604B2

公开(公告)日：2009-09-08

申请号：US10572545

申请日：2004-09-02

Applicant: Nobuhiko Masaki ,  Kiminobu Hirata ,  Hiroki Ueno

Inventor： Nobuhiko Masaki ,  Kiminobu Hirata ,  Hiroki Ueno

IPC: F01N3/00

CPC classification number: F01N3/2066 ,  B01F3/04049 ,  B01F5/045 ,  B01F5/0466 ,  F01N2610/1453 ,  Y02T10/24

Abstract: 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.

Abstract translation: 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。