Exhaust catalyst system
    15.
    发明授权
    Exhaust catalyst system 有权
    排气催化剂体系

    公开(公告)号:US07743606B2

    公开(公告)日:2010-06-29

    申请号:US10992254

    申请日:2004-11-18

    IPC分类号: F01N3/00

    摘要: A catalyst system that may regenerate while removing pollutants from an exhaust gas of an engine. The system may have a converter with multiple segments of chambers. At least one of the chambers may be regenerated while the remaining chambers are removing pollutants from the exhaust. The chambers may be rotated in turn for one-at-a-time regeneration. More than one chamber may be regenerated at a time to remove collected pollutants. The system may have plumbing and valves, and possibly mechanical movement of the chambers, within the system to effect the changing of a chamber for regeneration. The chambers connected to the exhaust may be in series or parallel. A particulate matter filter may be connected to the system, and it also may be regenerated to remove collected matter.

    摘要翻译: 一种催化剂体系,其可以在从发动机的废气中除去污染物的同时再生。 该系统可以具有具有多个腔室段的转换器。 至少一个室可以再生,而其余室从废气中除去污染物。 这些腔室可以依次旋转一次一次再生。 一次可以再生一个以上的室,以去除所收集的污染物。 系统可能在系统内具有管道和阀以及可能的腔室的机械运动,以实现用于再生的室的改变。 与排气连接的室可以串联或并联。 颗粒物过滤器可以连接到系统,并且还可以再生以除去收集的物质。

    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE
    18.
    发明申请
    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
    用于内燃机的排气净化装置

    公开(公告)号:US20100043410A1

    公开(公告)日:2010-02-25

    申请号:US12525092

    申请日:2008-01-30

    IPC分类号: F01N3/08

    摘要: An object of the present invention, in an internal combustion engine equipped with a moisture adsorbent and a NOx adsorbent in series in order from the upstream side of an exhaust passage, is to provide an exhaust gas purifying apparatus for the internal combustion engine which can successfully prevent an adsorption capability of NOx from being inhibited by moisture and is capable of maintaining the NOx adsorption capability of the NOx adsorbent adequately. A main exhaust passage 14 through which exhaust gas exhausted from an internal combustion engine 10 flows is provided. A bypass passage 20 bypassing the main exhaust passage 14 is provided. A moisture adsorbent 24 and a NOx adsorbent 28 are provided in the bypass passage 20 in series in order from a side closer to the upstream connecting portion 20a. A switching valve 22 is controlled to prevent the exhaust gas from flowing into the NOx adsorbent 28 when it is judged that the desorption of the moisture from the moisture adsorbent 24 is started.

    摘要翻译: 本发明的目的在于,在从排气通道的上游侧依次配置有吸湿剂和NOx吸附剂的内燃机中,为了能够成功地提供内燃机的废气净化装置 防止NO x的吸附能力被水分抑制,能够充分地维持NOx吸附剂的NOx吸附能力。 提供从内燃机10排出的排气流过的主排气通路14。 旁路通路20设置有旁通主排气通路14。 旁通通路20中的水分吸附剂24和NOx吸附剂28从靠近上游连接部20a的一侧依次串联设置。 控制切换阀22,以防止从水分吸附剂24开始对水分的解吸开始时废气流入NOx吸附剂28。

    CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
    19.
    发明申请
    CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE 失效
    内燃机的控制装置

    公开(公告)号:US20100037595A1

    公开(公告)日:2010-02-18

    申请号:US12532846

    申请日:2008-03-14

    IPC分类号: F02D43/00 F01N3/10 F01N3/00

    摘要: The control device of the internal combustion engine appropriately controls plural exhaust valves to effectively perform sulfur poisoning recovery in an exhaust gas purifying catalyst. The control device controls the internal combustion engine which performs lean burn. The exhaust system of the internal combustion engine includes: first exhaust valves and second exhaust valves provided in each of the plural cylinders; a first exhaust passage communicating with the first exhaust valves; a second exhaust passage communicating with the second exhaust valves; a first exhaust gas purifying catalyst provided at least one of the first exhaust passage and the second exhaust passage; and a second exhaust gas purifying catalyst provided on an exhaust passage downstream of a junction of the first exhaust passage and the second exhaust passage. The control means controls the exhaust valves such that an effect of rich combustion occurs more to the second exhaust gas purifying catalyst than to the first exhaust gas purifying catalyst, when performing rich combustion. By this, the consumption of the exhaust gas in the first exhaust gas purifying catalyst can be suppressed, and the temperature of the second exhaust gas purifying catalyst can be effectively risen. Therefore, the sulfur poisoning recovery and the like can be effectively performed.

    摘要翻译: 内燃机的控制装置适当地控制多个排气阀,以有效地进行排气净化催化剂中的硫中毒回收。 控制装置控制进行稀燃的内燃机。 内燃机的排气系统包括:设置在多个气缸中的第一排气阀和第二排气阀; 与所述第一排气阀连通的第一排气通路; 与第二排气阀连通的第二排气通道; 第一废气净化催化剂,其设置有第一排气通道和第二排气通道中的至少一个; 以及第二排气净化催化剂,其设置在第一排气通路和第二排气通路的接合处下游的排气通路上。 当进行丰富的燃烧时,控制装置控制排气门,使得与第一排气净化催化剂相比,富燃的作用比第二废气净化催化剂更多。 由此,能够抑制第一排气净化催化剂中的排气的消耗,能够有效地提高第二排气净化催化剂的温度。 因此,能够有效地进行硫中毒回收等。

    Exhaust gas purification apparatus and exhaust gas purification method for internal combustion engine
    20.
    发明授权
    Exhaust gas purification apparatus and exhaust gas purification method for internal combustion engine 失效
    内燃机废气净化装置及排气净化方法

    公开(公告)号:US07640728B2

    公开(公告)日:2010-01-05

    申请号:US11666292

    申请日:2005-11-02

    IPC分类号: F01N3/00

    摘要: In an exhaust gas purification apparatus for an internal combustion engine (1) equipped with independent exhaust passages (2a, 2b) provided one for each cylinder group (1a, 1b) with a catalyst (3a, 3b) having a NOx trapping ability being arranged in each exhaust passage, the present invention is intended to provide a technique that can independently control the flow rates of exhaust gases flowing into the respective catalysts. To this end, the exhaust gas purification apparatus according to the present invention provides a communication passage (4) connecting mutually portions of said exhaust passages (2a, 2b) at upstream of said catalysts (3a, 3b), an upstream side switching valve (5) openning and closing said upstream side communication passage (4), a plurality of flow rate regulation valves (6a, 6b) being arranged at downstream of connecting portions of said exhaust passages with said upstream side communication passage, respectively, and a control section (9) controlling said upstream side switching valve (5) and said respective flow rate regulation valves (6a, 6b) in accordance with the states of said respective catalysts (3a, 3b). When the NOx trapping ability of one of the plurality of catalysts (3a, 3b) is regenerated, the control section (9) opens the upstream side switching valve (5), fully closes one flow rate regulation valve (6a, 6b) in one of the exhaust passages (2a, 2b) in which the one catalyst (3a, 3b) is arranged, and operates a reducing agent addition valve (7a, 7b) in such a manner that the reducing agent arrives at the one catalyst (3a, 3b) when the actual degree of opening of the one flow rate regulation valve (6a, 6b) becomes fully closed.

    摘要翻译: 在具有排气通道(2a,2b)的内燃机(1)的排气净化装置中,所述排气净化装置具备排气通路(2a,2b) 在每个排气通道中,本发明旨在提供一种能够独立地控制流入各催化剂的废气的流量的技术。 为此,根据本发明的排气净化装置,在所述催化剂(3a,3b)的上游设置有连通路(4),连通路(4)将上述排气通路(2a,2b)的上游侧的上游侧切换阀( 5)打开和关闭所述上游侧连通通道(4),多个流量调节阀(6a,6b)分别布置在所述排气通道与所述上游侧连通通道的连接部分的下游,控制部分 (9)根据所述各催化剂(3a,3b)的状态控制所述上游侧切换阀(5)和所述各流量调节阀(6a,6b)。 当多个催化剂(3a,3b)之一的NOx捕集能力再生时,控制部(9)打开上游侧切换阀(5),将一个流量调节阀(6a,6b)全部关闭, 的排气通道(2a,2b),其中布置有一个催化剂(3a,3b),并且以使还原剂到达一个催化剂(3a,3b)的方式操作还原剂添加阀(7a,7b) 3b)当一个流量调节阀(6a,6b)的实际开度达到完全关闭时。