Fuel injection system for internal combustion engine
    1.
    发明授权
    Fuel injection system for internal combustion engine 有权
    内燃机燃油喷射系统

    公开(公告)号:US08670916B2

    公开(公告)日:2014-03-11

    申请号:US13398873

    申请日:2012-02-17

    IPC分类号: F02M37/02 F02M37/06

    摘要: A fuel injection system for an internal combustion engine is provided which works to correct the pressure of fuel, as measured by a pressure sensor, using a pressure change corresponding to a change in quantity of the fuel in a common rail within a pressure change compensating time Tp to determine a pump discharge pressure Ptop. This compensates for an error in determining the pump discharge pressure Ptop which arises from propagation of the pressure of fuel from a pump to the pressure sensor. The pressure change compensating time Tp is the sum of a time T1 elapsed between sampling the output of the pressure sensor before a calculation start time when the pump discharge pressure is to start to be calculated and the calculation start time and a time T2 required for the pressure to transmit from the outlet of the pump to the pressure sensor.

    摘要翻译: 提供了一种用于内燃机的燃料喷射系统,其用于通过压力传感器使用在压力变化补偿时间内对应于共轨中的燃料量的变化的压力变化来校正燃料的压力 Tp确定泵排出压力Ptop。 这补偿了确定从泵到压力传感器的燃料压力传播引起的泵排出压力Ptop的误差。 压力变化补偿时间Tp是在计算开始泵排出压力的计算开始时刻之前对压力传感器的输出进行采样之间经过的时间T1与计算开始时间之间的时间和与 从泵的出口传递到压力传感器的压力。

    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气排放控制装置

    公开(公告)号:US20090288396A1

    公开(公告)日:2009-11-26

    申请号:US12465958

    申请日:2009-05-14

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

    摘要: An exhaust emission control device is used for an engine and is applied to an exhaust gas purifying system. The system has an NOx catalyst disposed in an exhaust passage of the engine to promote selective purification of NOx in exhaust gas performed by ammonia, which is a reducing agent for reducing NOx, and a reducing agent adding device for adding the reducing agent to an upstream side of the catalyst in a flow direction of exhaust gas. The device includes a catalyst temperature detecting device for detecting temperature of the catalyst, a reaction ratio calculating device for calculating a reaction ratio, which is a ratio of a reaction amount of ammonia to a reaction amount of NOx in the catalyst, based on the temperature of the catalyst, and an ammonia consumed amount calculating device for calculating a consumed amount of ammonia in the catalyst based on the reaction ratio

    摘要翻译: 废气排放控制装置用于发动机,并被应用于废气净化系统。 该系统具有设置在发动机的排气通道中的NOx催化剂,以促进由作为还原NOx的还原剂的氨进行的废气中的NOx的选择性净化,以及用于将还原剂添加到上游的还原剂添加装置 在废气的流动方向上的催化剂侧。 该装置包括用于检测催化剂的温度的催化剂温度检测装置,用于计算反应比的反应比计算装置,其是氨的反应量与催化剂中的NOx的反应量的比例,基于温度 以及氨消耗量计算装置,用于根据反应比计算催化剂中氨的消耗量

    Exhaust gas purifying device for internal combustion engine
    5.
    发明授权
    Exhaust gas purifying device for internal combustion engine 有权
    内燃机废气净化装置

    公开(公告)号:US08418438B2

    公开(公告)日:2013-04-16

    申请号:US12758999

    申请日:2010-04-13

    IPC分类号: F01N3/00

    摘要: An exhaust gas purifying system for a diesel engine has an ECU, a passage of exhaust gas, a unit having SCR catalyst, a NOx sensor placed at a downstream side of the unit, and a urea water adding valve placed at an upstream side of the unit. The SCR catalyst in the unit selectively adsorbs ammonia, and selectively purifies NOx contained in an exhaust gas emitted from the diesel engine by the adsorbed ammonia. The ECU changes the urea water adding amount, and performs abnormality diagnosis based on the detection result of the NOx sensor while changing an adding amount of the urea water. The ECU uses a first condition to indicate the presence of an excess NOx amount in the exhaust gas, and a second condition to indicate there is no error cause by the ammonia adsorption on the SCR catalyst.

    摘要翻译: 用于柴油发动机的排气净化系统具有ECU,废气通道,具有SCR催化剂的单元,位于该单元下游侧的NOx传感器,以及放置在该单元的上游侧的尿素水添加阀 单元。 该单元中的SCR催化剂选择性地吸附氨,并且通过吸附的氨选择性地净化从柴油发动机排放的废气中所含的NOx。 ECU改变尿素水添加量,并且在改变尿素水的添加量的同时,基于NOx传感器的检测结果进行异常诊断。 ECU使用第一条件来指示废气中存在过量的NOx量,并且指示不存在SCR催化剂上的氨吸附引起的误差的第二条件。

    Exhaust emission control device for internal combustion
    6.
    发明授权
    Exhaust emission control device for internal combustion 有权
    内燃废气排放控制装置

    公开(公告)号:US08209966B2

    公开(公告)日:2012-07-03

    申请号:US12465958

    申请日:2009-05-14

    IPC分类号: F01N3/00

    摘要: An exhaust emission control device is used for an engine and is applied to an exhaust gas purifying system. The system has an NOx catalyst disposed in an exhaust passage of the engine to promote selective purification of NOx in exhaust gas performed by ammonia, which is a reducing agent for reducing NOx, and a reducing agent adding device for adding the reducing agent to an upstream side of the catalyst in a flow direction of exhaust gas. The device includes a catalyst temperature detecting device for detecting temperature of the catalyst, a reaction ratio calculating device for calculating a reaction ratio, which is a ratio of a reaction amount of ammonia to a reaction amount of NOx in the catalyst, based on the temperature of the catalyst, and an ammonia consumed amount calculating device for calculating a consumed amount of ammonia in the catalyst based on the reaction ratio.

    摘要翻译: 废气排放控制装置用于发动机,并被应用于废气净化系统。 该系统具有设置在发动机的排气通道中的NOx催化剂,以促进由作为还原NOx的还原剂的氨进行的废气中的NOx的选择性净化,以及用于将还原剂添加到上游的还原剂添加装置 在废气的流动方向上的催化剂侧。 该装置包括用于检测催化剂的温度的催化剂温度检测装置,用于计算反应比的反应比计算装置,其是氨的反应量与催化剂中的NOx的反应量的比例,基于温度 以及氨消耗量计算装置,用于根据反应比计算催化剂中氨的消耗量。

    Exhaust gas purification device of internal combustion engine
    7.
    发明授权
    Exhaust gas purification device of internal combustion engine 有权
    内燃机废气净化装置

    公开(公告)号:US08176730B2

    公开(公告)日:2012-05-15

    申请号:US12476563

    申请日:2009-06-02

    IPC分类号: F01N3/00

    摘要: An SCR catalyst is provided in an exhaust pipe of an engine and a urea solution addition valve is provided upstream of the SCR catalyst in the exhaust pipe. An ECU calculates ammonia adsorption quantity of the SCR catalyst and controls urea solution addition quantity, which is added by the urea solution addition valve, based on the ammonia adsorption quantity. The ECU obtains temperature of the SCR catalyst or temperature information correlated with the temperature through measurement or estimation. The ECU switches an execution mode of the urea solution addition control based on the catalyst temperature or the temperature information. Thus, reducing agent addition control can be performed suitably and eventually NOx purification in a NOx catalyst (i.e., SCR catalyst) can be performed suitably.

    摘要翻译: 在发动机的排气管中设置SCR催化剂,在排气管中的SCR催化剂的上游设置有尿素溶液添加阀。 ECU计算SCR催化剂的氨吸附量,并根据氨吸附量控制尿素溶液添加阀添加的尿素溶液添加量。 ECU通过测量或估计获得SCR催化剂的温度或与温度相关的温度信息。 ECU根据催化剂温度或温度信息切换尿素溶液添加控制的执行模式。 因此,可以适当地进行还原剂添加控制,并且可以适当地进行NOx催化剂(即SCR催化剂)的NOx净化。

    Toners for developing electrostatic image
    10.
    发明授权
    Toners for developing electrostatic image 失效
    用于静电图像显影的调色剂

    公开(公告)号:US5591556A

    公开(公告)日:1997-01-07

    申请号:US356575

    申请日:1994-12-15

    IPC分类号: G03G9/08 G03G9/087

    CPC分类号: G03G9/0825 G03G9/0819

    摘要: A toner for developing an electrostatic image comprises primary colored resin particles having a mean particle size of 0.6 to 10 microns which have been agglomerated to form secondary particles having a particle size of 1.2 to 20 microns. The primary colored resin particles are formed from fine elementary particles comprised of one or more polymers and a colorant. Thus, the toner can be economically prepared, is excellent in resolution, does not cause much fogging or scattering, and is excellent in fixability and image density.

    摘要翻译: 用于显影静电图像的调色剂包括平均粒度为0.6至10微米的初级着色树脂颗粒,其已经聚集以形成粒径为1.2至20微米的二次颗粒。 原色树脂颗粒由由一种或多种聚合物和着色剂组成的细小元素颗粒形成。 因此,调色剂可以经济地制备,分辨率优异,不会引起很大的起雾或散射,并且定影性和图像密度优异。