Exhaust gas purifying apparatus for an internal combustion engine and a method for controlling same apparatus
    3.
    发明授权

    公开(公告)号:US08087236B2

    公开(公告)日:2012-01-03

    申请号:US11992756

    申请日:2006-10-16

    IPC分类号: F01N3/00

    摘要: An exhaust gas purifying system for an internal combustion engine includes a first exhaust passage (22a) and a second exhaust passage (22b) into which an exhaust passage (21) of the internal combustion engine is bifurcated. NOx storage reduction catalysts (23a, 23b) and particulate filters (24a, 24b) are provided in each of the exhaust passages (22a, 22b). Fuel is supplied from a fuel valve (32) when NOx is to be released from the NOx storage reduction catalysts (23a, 23b). At a timing when the supplied fuel attaches to the NOx storage reduction catalysts (23a, 23b), one of exhaust control valves, for example, a first exhaust control valve (26a) is temporarily closed so as to keep the air-fuel ratio of exhaust gas rich. When NOx is released from the NOx storage reduction catalysts (23a, 23b) next time, a second exhaust control valve (26b) is temporarily closed after the fuel is supplied.

    摘要翻译: 一种用于内燃机的排气净化系统包括:内燃机的排气通道(21)被分叉的第一排气通道(22a)和第二排气通道(22b)。 在每个排气通道(22a,22b)中设置有NOx储存还原催化剂(23a,23b)和颗粒过滤器(24a,24b)。 当NOx从NOx储存还原催化剂(23a,23b)释放时,从燃料阀(32)供给燃料。 在供给的燃料附着在NOx存储还原催化剂(23a,23b)的时刻,排气控制阀(例如第一排气控制阀26a)中的一个暂时关闭,以保持空燃比 废气丰富。 当下一次从NOx储存还原催化剂(23a,23b)释放NOx时,在供给燃料之后,第二排气控制阀26b暂时关闭。

    Power source system of internal combustion engine
    5.
    发明授权
    Power source system of internal combustion engine 有权
    内燃机动力源系统

    公开(公告)号:US08151555B2

    公开(公告)日:2012-04-10

    申请号:US12304399

    申请日:2007-07-12

    IPC分类号: F01N3/00 F01N3/10

    摘要: Provided is a technology enabling a temperature of an exhaust gas purifying device to rise more surely by operating an electric heater for a catalyst attached with the electric heater more steadily without exerting an excessive load on a battery. Included are the battery and the electric heater operating upon being supplied with electric power from the battery and heating an occlusion-reduction type NOx catalyst, wherein it is predicted, from a point that a SOx occluded quantity into the occlusion-reduction type NOx catalyst is equal to or larger than S1, that a SOx poisoning recovery process will be executed in near future (S102), and a charging level of the battery is increased (S106) by raising a voltage of power generation of an alternator (S103).

    摘要翻译: 通过对电动加热器的电加热器进行更加稳定的操作,能够更加可靠地升高排气净化装置的温度,而不会对电池施加过大的负荷。 包括电池和电加热器,其从电池供电并加热阻塞还原型NOx催化剂,其中预测可以从将SO x封入量减少到吸留还原型NOx催化剂中的点为 等于或大于S1,将在不久的将来执行SOx中毒恢复处理(S102),并且通过提高交流发电机的发电电压来增加电池的充电水平(S106)(S103)。

    POWER SOURCE SYSTEM OF INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    POWER SOURCE SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机动力源系统

    公开(公告)号:US20090293465A1

    公开(公告)日:2009-12-03

    申请号:US12304399

    申请日:2007-07-12

    IPC分类号: F01N5/02 H02J7/00

    摘要: Provided is a technology enabling a temperature of an exhaust gas purifying device to rise more surely by operating an electric heater for a catalyst attached with the electric heater more steadily without exerting an excessive load on a battery. Included are the battery and the electric heater operating upon being supplied with electric power from the battery and heating an occlusion-reduction type NOx catalyst, wherein it is predicted, from a point that a SOx occluded quantity into the occlusion-reduction type NOx catalyst is equal to or larger than S1, that a SOx poisoning recovery process will be executed in near future (S102), and a charging level of the battery is increased (S106) by raising a voltage of power generation of an alternator (S103).

    摘要翻译: 通过对电动加热器的电加热器进行更加稳定的操作,能够更加可靠地升高排气净化装置的温度,而不会对电池施加过大的负荷。 包括电池和电加热器,其从电池供电并加热阻塞还原型NOx催化剂,其中预测可以从将SO x封入量减少到吸留还原型NOx催化剂中的点为 等于或大于S1,将在不久的将来执行SOx中毒恢复处理(S102),并且通过提高交流发电机的发电电压来增加电池的充电水平(S106)(S103)。

    Exhaust Gas Purifying Apparatus for an Internal Combustion Engine and a Method for Controlling Same Apparatus
    7.
    发明申请
    Exhaust Gas Purifying Apparatus for an Internal Combustion Engine and a Method for Controlling Same Apparatus 失效
    用于内燃机的废气净化装置和用于控制相同装置的方法

    公开(公告)号:US20090007546A1

    公开(公告)日:2009-01-08

    申请号:US11992756

    申请日:2006-10-16

    IPC分类号: F01N3/20 F01N3/021

    摘要: An exhaust gas purifying system for an internal combustion engine includes a first exhaust passage (22a) and a second exhaust passage (22b) into which an exhaust passage (21) of the internal combustion engine is bifurcated. NOx storage reduction catalysts (23a, 23b) and particulate filters (24a, 24b) are provided in each of the exhaust passages (22a, 22b). Fuel is supplied from a fuel valve (32) when NOx is to be released from the NOx storage reduction catalysts (23a, 23b). At a timing when the supplied fuel attaches to the NOx storage reduction catalysts (23a, 23b), one of exhaust control valves, for example, a first exhaust control valve (26a) is temporarily closed so as to keep the air-fuel ratio of exhaust gas rich. When NOx is released from the NOx storage reduction catalysts (23a, 23b) next time, a second exhaust control valve (26b) is temporarily closed after the fuel is supplied.

    摘要翻译: 一种用于内燃机的废气净化系统,包括内燃机的排气通道(21)分叉的第一排气通道(22a)和第二排气通道(22b)。 在每个排气通道(22a,22b)中设置有NOx储存还原催化剂(23a,23b)和颗粒过滤器(24a,24b)。 当NOx从NOx储存还原催化剂(23a,23b)释放时,从燃料阀(32)供给燃料。 在供给的燃料附着在NOx储存还原催化剂(23a,23b)的时刻,排气控制阀(例如第一排气控制阀26a)中的一个暂时关闭,以保持空燃比 废气丰富。 当下一次从NOx储存还原催化剂(23a,23b)释放NOx时,在供给燃料之后,第二排气控制阀26b暂时关闭。

    Exhaust purification system for internal combustion engine
    10.
    发明授权
    Exhaust purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US07963102B2

    公开(公告)日:2011-06-21

    申请号:US11884128

    申请日:2006-03-09

    IPC分类号: F01N3/00 F01N3/10 F01N3/02

    摘要: The present invention provides a technology enabling regeneration of the purification performance of an exhaust purification device more reliably and more efficiently in an exhaust purification system combining a plurality of branch passages bifurcating from an exhaust passage and an exhaust purification device provided in each branch passage. When regenerating the purification performance of a first exhaust purification device provided in a first branch passage, a second valve provided in a second branch passage is set at a predetermined first intermediate opening and a first valve provided in the first branch passage is fully closed. Fuel is then added from a first fuel addition valve provided in the first branch passage.

    摘要翻译: 本发明提供一种技术,其能够在将排气通道分叉的多个分支通路与设置在各分支通道中的排气净化装置组合的排气净化系统中更可靠,更有效地再生排气净化装置的净化性能。 当再生设置在第一分支通道中的第一排气净化装置的净化性能时,设置在第二分支通道中的第二阀被设定在预定的第一中间开口,并且设置在第一分支通道中的第一阀完全关闭。 然后从设置在第一分支通道中的第一燃料添加阀添加燃料。