Exhaust gas purification device
    1.
    发明授权
    Exhaust gas purification device 有权
    废气净化装置

    公开(公告)号:US08122708B2

    公开(公告)日:2012-02-28

    申请号:US12093171

    申请日:2006-10-19

    IPC分类号: F01N3/00

    摘要: An exhaust gas purification device having a DPF provided in an exhaust system of an internal combustion engine. The device has one or more sound pressure measurement means for measuring exhaust sound pressure and calculation means for calculating the amount of PM accumulation based on the exhaust sound pressure measured. On the upstream side of the DPF are arranged exhaust gas temperature measurement means and exhaust gas temperature raising means. The exhaust gas temperature raising means is activated when the amount of PM accumulation calculated by the calculation means is higher than a preset default and at the same time when the exhaust gas temperature measured by the exhaust temperature measurement means is lower than a lower limit of a temperature region in which the DPF can be regenerated.

    摘要翻译: 一种排气净化装置,其具有设置在内燃机的排气系统中的DPF。 该装置具有用于测量排气声压的一个或多个声压测量装置和用于基于测量的排气声压来计算PM累积量的计算装置。 在DPF的上游侧布置排气温度测量装置和废气升温装置。 当由计算装置计算的PM累积量高于预设的默认值时,排气温度升高装置被激活,并且当排气温度测量装置测量的废气温度低于下限 DPF可再生的温度区域。

    Exhaust Gas Purification Device
    2.
    发明申请
    Exhaust Gas Purification Device 有权
    废气净化装置

    公开(公告)号:US20090151325A1

    公开(公告)日:2009-06-18

    申请号:US12093171

    申请日:2006-10-19

    IPC分类号: F01N11/00

    摘要: An exhaust gas purification device (101, 102, 103) having a DPF (33) provided in an exhaust system (30) of an internal combustion engine. The device has one or more sound pressure measurement means (8F, 8R) for measuring exhaust sound pressure and calculation means (10) for calculating the amount of PM accumulation based on the exhaust sound pressure measured. On the upstream side of the DPF (33) are arranged exhaust gas temperature measurement means (36) and exhaust gas temperature raising means (34). The exhaust gas temperature raising means (34) is activated when the amount of PM accumulation calculated by the calculation means (10) is higher than a preset default and at the same time when the exhaust gas temperature measured by the exhaust temperature measurement means (36) is lower than a lower limit of a temperature region in which the DPF (33) can be regenerated.

    摘要翻译: 具有设置在内燃机的排气系统(30)中的DPF(33)的废气净化装置(101,102,103)。 该装置具有用于测量排气声压的一个或多个声压测量装置(8F,8R)和用于基于测量的排气声压来计算PM累积量的计算装置(10)。 在DPF(33)的上游侧配置排气温度测定单元(36)和排气升温单元(34)。 当由计算装置(10)计算出的PM累积量高于预先设定的缺省值时,排气温度升高装置(34)被激活,同时当排气温度测量装置(36 )低于可以再生DPF(33)的温度区域的下限。

    Fuel injection valve for diesel engine
    6.
    发明申请
    Fuel injection valve for diesel engine 审中-公开
    柴油机燃油喷射阀

    公开(公告)号:US20050120995A1

    公开(公告)日:2005-06-09

    申请号:US10502343

    申请日:2002-12-24

    摘要: A diesel engine including a shallow-dish type combustion chamber on the top face of a piston. A fuel injection valve projects toward the combustion chamber, where a plurality of first nozzle holes are arranged in the same circumference of the fuel injection valve. A plurality of second nozzle holes having a diameter smaller than that of the first nozzle holes are provided in a circular side wall of the fuel injection valve, the circular side wall locating opposite to the tip part of the valve with respect to the first nozzle holes. The first nozzle holes and the second nozzle holes are staggered so that the sprays of the fuel ejected from the first nozzle holes and the second nozzle holes do no cross one another.

    摘要翻译: 一种柴油发动机,其包括活塞顶面上的浅盘型燃烧室。 燃料喷射阀朝向燃烧室突出,其中多个第一喷嘴孔布置在燃料喷射阀的同一圆周上。 在燃料喷射阀的圆形侧壁中设置有直径小于第一喷嘴孔直径的多个第二喷嘴孔,与第一喷嘴孔的顶端部相对的圆形侧壁 。 第一喷嘴孔和第二喷嘴孔交错,使得从第一喷嘴孔和第二喷嘴孔喷出的燃料喷雾不互相交叉。

    Engine
    8.
    发明申请
    Engine 有权
    发动机

    公开(公告)号:US20100198484A1

    公开(公告)日:2010-08-05

    申请号:US12665530

    申请日:2008-07-25

    IPC分类号: F02D41/30

    摘要: The purpose of the present invention is to provide an engine having a revision means which regulates rotation speed of each of cylinders while reflecting specific unevenness of rotation of each of the cylinders. With regard to an engine 2 having a plurality of cylinders wherein opening timing of each of injectors 3 can be controlled respectively, comprising an individual standard rotation speed output unit 30 which outputs individual standard rotation speed Nstdi of each of the cylinders following fuel injection of the corresponding injector 3 when all the injectors 3 are in normal state, an engine rotation speed sensor 6 which detects individual actual rotation speed Ni of each of the cylinders following the fuel injection of the corresponding injector 3, and a revision amount calculation unit 50 which calculates revision amount of fuel injection amount to each of the cylinders from the corresponding injector 3 based on difference between the individual standard rotation speed Nstdi stored in the individual standard rotation speed output unit 30 and the individual actual rotation speed Ni calculated by the engine rotation speed sensor 6.

    摘要翻译: 本发明的目的是提供一种具有修正装置的发动机,该修正装置调节每个气缸的转速,同时反映每个气缸的特定的旋转不均匀性。 关于具有多个气缸的发动机2,其中可以分别控制每个喷射器3的打开正时,包括单独的标准转速输出单元30,其输出燃料喷射后的每个气缸的单独的标准转速Nstdi 当所有喷射器3处于正常状态时,对应的喷射器3,检测相应喷射器3的燃料喷射后的各气缸的各个实际转速Ni的发动机转速传感器6,以及修正量计算部50 根据存储在各个标准转速输出部30中的各个标准转速Nstdi与由发动机转速传感器算出的个别实际转速Ni的差,来自相应的喷射器3的各气缸的燃料喷射量的修正量 6。

    Engine
    9.
    发明授权
    Engine 有权
    发动机

    公开(公告)号:US08494752B2

    公开(公告)日:2013-07-23

    申请号:US12665530

    申请日:2008-07-25

    摘要: The purpose of the present invention is to provide an engine having a revision means which regulates rotation speed of each of cylinders while reflecting specific unevenness of rotation of each of the cylinders. With regard to an engine 2 having a plurality of cylinders wherein opening timing of each of injectors 3 can be controlled respectively, comprising an individual standard rotation speed output unit 30 which outputs individual standard rotation speed Nstdi of each of the cylinders following fuel injection of the corresponding injector 3 when all the injectors 3 are in normal state, an engine rotation speed sensor 6 which detects individual actual rotation speed Ni of each of the cylinders following the fuel injection of the corresponding injector 3, and a revision amount calculation unit 50 which calculates revision amount of fuel injection amount to each of the cylinders from the corresponding injector 3 based on difference between the individual standard rotation speed Nstdi stored in the individual standard rotation speed output unit 30 and the individual actual rotation speed Ni calculated by the engine rotation speed sensor 6.

    摘要翻译: 本发明的目的是提供一种具有修正装置的发动机,该修正装置调节每个气缸的转速,同时反映每个气缸的特定的旋转不均匀性。 关于具有多个气缸的发动机2,其中可以分别控制每个喷射器3的打开正时,包括单独的标准转速输出单元30,其输出燃料喷射后的每个气缸的各个标准转速Nstdi 当所有喷射器3处于正常状态时,对应的喷射器3,检测相应喷射器3的燃料喷射后的各气缸的各个实际转速Ni的发动机转速传感器6,以及修正量计算部50 根据存储在各个标准转速输出部30中的各个标准转速Nstdi与由发动机转速传感器算出的个别实际转速Ni的差,来自相应的喷射器3的各气缸的燃料喷射量的修正量 6。

    Engine
    10.
    发明授权
    Engine 有权
    发动机

    公开(公告)号:US08126638B2

    公开(公告)日:2012-02-28

    申请号:US12665527

    申请日:2008-07-25

    IPC分类号: F02D41/22

    摘要: In an engine which may show a behavior where an engine speed is not always minimized after compression top dead center of a cylinder in which poor fuel injection occurred, the cylinder in which poor fuel injection occurred is detected. A common rail diesel engine (1) includes a individual reference number-of-revolutions output unit (30) for outputting the individual reference number of revolutions Nstdi of each cylinder corresponding to each injector (3) incident to fuel injection thereof, an engine speed sensor (6) for calculating the individual actual number of revolutions Ni of each cylinder corresponding to each injector (3) incident to fuel injection thereof, and fuel injection failure detection means for judging a cylinder temporarily judged as poor fuel injection as a cylinder of poor fuel injection when the plus and minus by a contrast arithmetic operation unit (80) coincide entirely in each cylinder and the absolute value |ΔNi′| of the difference in number of revolutions at the time of forced stop means is entirely above the absolute value |ΔNi| of the difference in the number of revolutions at the time of temporary judgment means.

    摘要翻译: 在可能显示发动机转速并不总是最小化的气缸的发动机中,其中发生不良燃料喷射的气缸的压缩上止点之后,检测出发生不良燃料喷射的气缸。 共轨柴油发动机(1)包括单独的参考转数输出单元(30),用于输出对应于其入射到其燃料喷射的每个喷射器(3)的每个气缸的各个参考转数Nstdi,发动机转速 传感器(6),用于计算对应于其燃料喷射入射的每个喷射器(3)的每个气缸的个别实际转数Ni;以及燃料喷射故障检测装置,用于判断暂时判断为不良燃料喷射的气缸为不良气缸 燃料喷射,当对比度运算单元(80)的正数和负数完全在每个气缸中重合时,绝对值| | Dgr; Ni'| 在强制停止装置时的转数差异完全高于绝对值| | Dgr; Ni | 在临时判断手段时的转数差异。