Engine exhaust gas purification device
    12.
    发明授权
    Engine exhaust gas purification device 有权
    发动机废气净化装置

    公开(公告)号:US07716920B2

    公开(公告)日:2010-05-18

    申请号:US11099029

    申请日:2005-04-05

    IPC分类号: F01N3/00

    摘要: The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by burning the particulate matter trapped in the filter B, an EGR valve (8) provided in an EGR passage (7) linking the intake side and exhaust side of the engine 1, an injector (2) for injecting fuel into a cylinder, and control unit (20) for controlling the injector (2) and EGR valve (8). During regeneration of the filter B, the control unit (20) close the EGR valve (8) when fuel injection from the injector (2) is controlled to supply unburned fuel components to the catalyst A, and open the EGR valve (8) when no fuel is injected from the injector (2) upon a request for speed reduction or the like. In so doing, residual unburned fuel components in the EGR passage (7) are scavenged by air.

    摘要翻译: 本发明提供了一种发动机废气净化装置,其特征在于,具备:设置在发动机(1)的排气通路(10)内的用于捕集废气中所含的颗粒物质的过滤器B.催化剂A,用于通过燃烧颗粒物再生过滤器B. 捕集在过滤器B中的物质,设置在连接发动机1的进气侧排气侧的EGR通路(7)中的EGR阀(8),将燃料喷射到气缸中的喷射器(2),以及控制单元 )用于控制喷射器(2)和EGR阀(8)。 在过滤器B再生期间,控制单元(20)关闭EGR阀(8),当喷射器(2)的燃料喷射被控制以向催化剂A供应未燃烧的燃料组分,并且当EGR阀(8) 在减速等要求时,没有燃料从喷射器(2)喷射。 这样做,EGR通路(7)中残留的未燃燃料成分被空气清扫。

    Control method for an exhaust gas purification system and an exhaust gas purification system
    14.
    发明申请
    Control method for an exhaust gas purification system and an exhaust gas purification system 审中-公开
    废气净化系统和废气净化系统的控制方法

    公开(公告)号:US20050217245A1

    公开(公告)日:2005-10-06

    申请号:US11078475

    申请日:2005-03-14

    摘要: The present invention concerns a exhaust gas purification system (1), provided with a continuous regeneration-type DPF device (13) having a filter (13b) for collecting PM in exhaust gas (G), provided in an exhaust gas passage (12) of an internal combustion engine (10) provided with an EGR system, for supplying unburned fuel to exhaust gas (G) flowing in the continuous regeneration-type DPF device (13) during the forced regeneration control for regenerating the filter (13b) by forcibly burning PM collected by the filter (13b), characterized by stopping the recirculation of EGR gas (Ge) to the intake passage (14) side in the EGR system, when unburned fuel is supplied to exhaust gas (G) during the forced regeneration control. This prevents the blocking of EGR passage (15) and the sticking of intake valve and so on, caused by the unburned fuel supplied into exhaust gas (G), during the forced regeneration control of the continuous regeneration-type DPF device (13). And this prevents engine troubles caused by these problems.

    摘要翻译: 本发明涉及一种设置有连续再生型DPF装置(13)的排气净化系统(1),其具有设置在废气通道(12)中的用于收集废气(G)中的PM的过滤器(13b) 设置有EGR系统的内燃机(10),用于在用于再生过滤器(13b)的强制再生控制期间将未燃燃料供应到在连续再生型DPF装置(13)中流动的废气(G) 通过强制燃烧由过滤器(13b)收集的PM,其特征在于,在所述EGR系统中,当在所述EGR系统中将未燃燃料供给到废气(G)时停止EGR气体(Ge)再循环到所述进气通道(14) 强制再生控制。 由此,连续再生型DPF装置(13)的强制再生控制期间,能够防止EGR流路(15)的阻塞和由供给废气(G)的未燃燃料引起的进气阀等的粘附。 这样可以防止这些问题引起的发动机故障。

    Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System
    16.
    发明申请
    Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System 有权
    废气净化系统和废气净化系统的控制方法

    公开(公告)号:US20090183494A1

    公开(公告)日:2009-07-23

    申请号:US12227901

    申请日:2007-05-14

    IPC分类号: F01N9/00 F01N3/00 F01N3/10

    摘要: In forced regeneration control of an exhaust gas purification device 12, the number of data for injection control such as the number of meshes of a data map and the number of data maps for multi injection control is decreased while occurrence of torque shock, which is a rapid fluctuation of a generated torque, is avoided. In the forced regeneration control of the exhaust gas purification device 12, when an operation state of an internal combustion engine 10 is a high-load operation state, the normal injection control by stopping the multi injection is carried out and according to a rotation speed Ne and a load Q of the internal combustion engine 10, a region for control is divided into a multi-injection control region Rm, a transition region Rt, and a normal injection control region Rn, and in the transition region Rt, data Ft(i) for injection control obtained by interpolation of data Fml(i) for injection control on the multi-injection control region Rm side and data Fnl(i) for injection control on the normal injection control region Rn side is used.

    摘要翻译: 在废气净化装置12的强制再生控制中,数据图的网格数量和多次喷射控制的数据图的数量等喷射控制数据减少,同时产生作为 避免产生转矩的快速波动。 在排气净化装置12的强制再生控制中,当内燃机10的运转状态为高负荷运转状态时,通过停止多次喷射进行正常喷射控制,并根据转速Ne 和内燃机10的负载Q,将用于控制的区域划分为多喷射控制区域Rm,过渡区域Rt和正常喷射控制区域Rn,并且在过渡区域Rt中,数据Ft(i )用于通过对用于多喷射控制区域Rm侧的喷射控制的数据Fml(i)进行插值获得的喷射控制,并且使用用于喷射控制区域Rn侧的喷射控制的数据Fn1(i)。

    Control method of exhaust gas purification system and exhaust gas purification system
    17.
    发明授权
    Control method of exhaust gas purification system and exhaust gas purification system 有权
    废气净化系统和废气净化系统的控制方法

    公开(公告)号:US08627652B2

    公开(公告)日:2014-01-14

    申请号:US12227901

    申请日:2007-05-14

    IPC分类号: F02B27/04 F01N3/00

    摘要: In forced regeneration control of an exhaust gas purification device a number of data for injection control, such as a number of meshes of a data map and a number of data maps for multi injection control, is decreased while occurrence of torque shock, which is a rapid fluctuation of a generated torque, is avoided. In this forced regeneration control, when an operation state of an internal combustion engine is a high-load operation state, the normal injection control by stopping the multi injection is carried out and, according to a rotation speed and a load of the internal combustion engine, a region for control is divided into a multi-injection control region, a transition region, and a normal injection control region. In the transition region, data for injection control obtained by interpolation of data for injection control on the multi-injection control region side and data for injection control on the normal injection control region side is used.

    摘要翻译: 在排气净化装置的强制再生控制中,在发生扭矩冲击的同时,减少了多个用于喷射控制的数据,例如数据图的网格数和多次喷射控制的数据图的数量, 避免产生转矩的快速波动。 在该强制再生控制中,当内燃机的运转状态为高负荷运转状态时,进行通过停止多次喷射的正常喷射控制,根据内燃机的转速和负荷 ,用于控制的区域被分为多次喷射控制区域,过渡区域和正常喷射控制区域。 在过渡区域中,使用通过对多喷射控制区域侧的喷射控制用数据的内插以及在正常喷射控制区域侧的喷射控制用数据而得到的喷射控制用数据。

    RECOVERY CONTROL SYSTEM
    18.
    发明申请
    RECOVERY CONTROL SYSTEM 有权
    恢复控制系统

    公开(公告)号:US20130186073A1

    公开(公告)日:2013-07-25

    申请号:US13699524

    申请日:2011-05-16

    IPC分类号: F01N11/00

    摘要: A recovery control system that allows a dosing valve to recover from a malfunction to a normal state, or a liquid feed line through which urea solution is fed to recover from clogging to a normal state. An abnormality detector detects an abnormality of the dosing valve and a recovery controller controls a supply module to feed urea solution in the dosing valve back to an urea tank when the abnormality detector detects the abnormality.

    摘要翻译: 一种允许计量阀从故障恢复到正常状态的恢复控制系统或通过其供应尿素溶液以从堵塞恢复到正常状态的液体供给管线。 异常检测器检测计量阀的异常,并且当异常检测器检测到异常时,恢复控制器控制供给模块将计量阀中的尿素溶液送回尿素罐。