REDUCING AGENT SUPPLYING DEVICE
    1.
    发明公开
    REDUCING AGENT SUPPLYING DEVICE 有权
    减少剂供应装置

    公开(公告)号:EP2998532A3

    公开(公告)日:2016-03-30

    申请号:EP15184973.4

    申请日:2015-09-14

    申请人: DENSO CORPORATION

    摘要: A reducing agent supplying device includes reaction container (20), ozone generator (30), air pump (30p), ozone-containing air pipe (26), compressed air pipe (25), switching device (25v, 26v), and switching controller (41 a). The reaction container defines a reaction chamber (20a) in which reducing agent is reformed. The ozone generator generates ozone from oxygen in air, being supplied by the air pump. Ozone-containing air flows through the ozone-containing air pipe toward the reaction chamber. A portion of compressed air flows through the compressed air pipe toward the reaction chamber. The switching device switches between an air pump mode, in which the ozone-containing air is supplied into the reaction chamber, and a supercharging mode, in which the compressed air is supplied into the reaction chamber. The switching controller controls the switching device based on a temperature of the reducing catalyst and an exhaust pressure in the exhaust passage.

    摘要翻译: (20),臭氧发生器(30),空气泵(30p),含臭氧空气管(26),压缩空气管(25),开关装置(25v,26v)以及开关装置 控制器(41a)。 反应容器限定其中还原剂被重整的反应室(20a)。 臭氧发生器由空气中的氧气产生臭氧,由空气泵供应。 含臭氧的空气通过含臭氧的空气管流向反应室。 一部分压缩空气通过压缩空气管流向反应室。 切换装置在向反应室内供给含有臭氧的空气的空气泵模式和向反应室内供给压缩空气的增压模式之间进行切换。 切换控制器基于还原催化剂的温度和排气通道中的排气压力来控制开关装置。

    REDUCING AGENT SUPPLYING DEVICE
    3.
    发明公开
    REDUCING AGENT SUPPLYING DEVICE 有权
    REDUKTIONSMITTELVERSORGUNGSVORRICHTUNG

    公开(公告)号:EP2975231A1

    公开(公告)日:2016-01-20

    申请号:EP15175783.8

    申请日:2015-07-08

    申请人: DENSO CORPORATION

    IPC分类号: F01N3/08 F01N3/36 F01N13/00

    摘要: A reducing agent supplying device is for a fuel combustion system that includes a NOx purifying device (15) with a reducing catalyst arranged in an exhaust passage (10ex) to purify NOx contained in exhaust gas of an internal combustion engine (10). The reducing agent supplying device supplies a reducing agent into the exhaust passage (10ex) at a position upstream of the NOx purifying device (15). The reducing agent supplying device includes an air pipe (23), a vaporizing container (25), an injector (70), a heating member (30, 40) and a mixing plate (50). The air pipe defines an air passage (23b) therein. The vaporizing container (25) defines a vaporizing chamber (25a) therein that branches off from the air passage (23b). The vaporizing chamber (25a) is connected to the air pipe (23). The injector (70) injects liquid hydrocarbon compound as a reducing agent. The heating member (30, 40) is disposed in the vaporizing chamber (25a). The heating member (30, 40) heats and vaporizes the reducing agent injected from the injector (70). The mixing plate (50) is connected to the heating member (30, 40). The mixing plate extends from the vaporizing chamber (25a) into the air passage (23b).

    摘要翻译: 还原剂供给装置用于燃料燃烧系统,其包括具有排气通道(10ex)中的还原催化剂的NOx净化装置(15),以净化内燃机(10)的废气中所含的NOx。 还原剂供给装置在NOx净化装置(15)的上游侧的位置向排气通路(10ex)供给还原剂。 还原剂供给装置包括空气管(23),蒸发容器(25),喷射器(70),加热构件(30,40)和混合板(50)。 空气管在其中限定空气通道(23b)。 蒸发容器(25)在其中限定了从空气通道(23b)分支的蒸发室(25a)。 蒸发室(25a)连接到空气管(23)。 喷射器(70)注入液态烃化合物作为还原剂。 加热构件(30,40)设置在蒸发室(25a)中。 加热构件(30,40)加热并蒸发从喷射器(70)喷射的还原剂。 混合板(50)连接到加热构件(30,40)。 混合板从蒸发室(25a)延伸到空气通道(23b)中。

    REDUCING AGENT SUPPLYING DEVICE
    6.
    发明公开
    REDUCING AGENT SUPPLYING DEVICE 有权
    REDUKTIONSMITTELBEREITSTELLUNGSVORRICHTUNG

    公开(公告)号:EP2998532A2

    公开(公告)日:2016-03-23

    申请号:EP15184973.4

    申请日:2015-09-14

    申请人: DENSO CORPORATION

    IPC分类号: F01N3/08 F01N3/20 F01N9/00

    摘要: A reducing agent supplying device includes reaction container (20), ozone generator (30), air pump (30p), ozone-containing air pipe (26), compressed air pipe (25), switching device (25v, 26v), and switching controller (41 a). The reaction container defines a reaction chamber (20a) in which reducing agent is reformed. The ozone generator generates ozone from oxygen in air, being supplied by the air pump. Ozone-containing air flows through the ozone-containing air pipe toward the reaction chamber. A portion of compressed air flows through the compressed air pipe toward the reaction chamber. The switching device switches between an air pump mode, in which the ozone-containing air is supplied into the reaction chamber, and a supercharging mode, in which the compressed air is supplied into the reaction chamber. The switching controller controls the switching device based on a temperature of the reducing catalyst and an exhaust pressure in the exhaust passage.

    摘要翻译: 还原剂供给装置包括反应容器(20),臭氧发生器(30),空气泵(30p),含臭氧的空气管(26),压缩空气管(25),开关装置(25v,26v) 控制器(41a)。 反应容器限定了还原剂重整的反应室(20a)。 臭氧发生器由空气中的氧气产生臭氧,由空气泵供应。 含臭氧的空气流过含臭氧的空气管朝向反应室。 压缩空气的一部分流经压缩空气管道朝向反应室。 开关装置在其中将含臭氧的空气供应到反应室中的空气泵模式与其中将压缩空气供应到反应室中的增压模式之间切换。 开关控制器基于还原催化剂的温度和排气通道中的排气压力控制开关装置。

    REDUCING AGENT SUPPLYING DEVICE
    7.
    发明公开
    REDUCING AGENT SUPPLYING DEVICE 有权
    减少剂供应装置

    公开(公告)号:EP2966274A1

    公开(公告)日:2016-01-13

    申请号:EP15172343.4

    申请日:2015-06-16

    申请人: DENSO CORPORATION

    摘要: A reducing agent supplying device is for a fuel combustion system that includes a NOx purifying device (15) with a reducing catalyst arranged in an exhaust passage (10ex) to purify NOx contained in exhaust gas of an internal combustion engine (10). The reducing agent supplying device supplies a reducing agent into the exhaust passage at a position upstream of the reducing catalyst. The reducing agent supplying device includes a reforming portion (30, 50) and a reformation suppressing portion (S54, S55). The reforming portion (30, 50) reforms the reducing agent by partially oxidizing the reducing agent. When a temperature of the reducing agent is higher than a first specified temperature (T1) that is equal to or higher than an activation temperature of the reducing catalyst (about 400°C), the reformation suppressing portion (S54, S55) (i) suppresses the degree of reformation of the reducing agent in comparison with when a temperature of the reducing agent is lower than the first specified temperature (T1), or (ii) stops the reformation of the reducing agent.

    摘要翻译: 还原剂供给装置用于燃料燃烧系统,该燃料燃烧系统包括布置在排气通道(10ex)中的具有还原催化剂的NOx净化装置(15),以净化内燃机(10)的排气中所含的NOx。 还原剂供应装置在还原催化剂上游的位置处将还原剂供应到排气通道中。 还原剂供应装置包括重整部分(30,50)和重整抑制部分(S54,S55)。 重整部分(30,50)通过部分氧化还原剂重整还原剂。 当还原剂的温度高于等于或高于还原催化剂的活化温度(约400℃)的第一指定温度(T1)时,重整抑制部分(S54,S55)(i) 与还原剂的温度低于第一规定温度(T1)时相比,抑制还原剂的再生的程度,或者(ii)停止还原剂的再生。