Control method of EGR system of engine
    3.
    发明授权
    Control method of EGR system of engine 失效
    发动机EGR系统控制方法

    公开(公告)号:US06868329B2

    公开(公告)日:2005-03-15

    申请号:US10686351

    申请日:2003-10-14

    摘要: A control method of an EGR system of an engine capable of effectively performing an EGR control at a time of rapid acceleration. For this purpose, an intake air flow rate of the engine is obtained, and from a target EGR valve opening degree and a difference in pressure in front of and behind the EGR valve, a virtual EGR gas flow rate is arithmetically operated. A virtual EGR rate is obtained from the intake air flow rate, the fuel flow rate and the virtual EGR gas flow rate, and a difference from or a ratio to a target EGR rate obtained from the engine speed and the fuel flow rate is obtained. A command EGR valve opening degree is obtained from an EGR valve opening degree correction coefficient obtained from the difference or the ratio, and the target EGR valve opening degree, whereby the EGR vale is driven.

    摘要翻译: 一种能够在快速加速时有效地进行EGR控制的发动机的EGR系统的控制方法。 为此,获得发动机的进气流量,并且从目标EGR阀开度和EGR阀前后的压力差中算出虚拟EGR气体流量。 从进气流量,燃料流量和虚拟EGR气体流量获得虚拟EGR率,并且获得与从发动机转速和燃料流量获得的与目标EGR率的差值或比率。 从根据差值或比率获得的EGR阀开度校正系数和目标EGR阀开度获得指令EGR阀开度,由此EGR阀被驱动。

    Piping structure of fuel injection pipes for engine
    4.
    发明授权
    Piping structure of fuel injection pipes for engine 有权
    发动机燃油喷管配管结构

    公开(公告)号:US07047942B2

    公开(公告)日:2006-05-23

    申请号:US10806328

    申请日:2004-03-23

    IPC分类号: F02M55/00

    摘要: Cylinder heads (100a to 100f are respectively provided with fuel injectors (101a to 101f). Each of the fuel injectors (101a to 101f) is connected to each of joints (105a to 105f) in a common rail (105) extending linearly through fuel injection pipes (103a to 103f). In this example, it can be achieved to allow all the fuel injection pipes (103a to 103f) to have the same length by crossing the injection pipes (103b, 103c, 103d and 103e) to connect. With this configuration, it is possible to reduce the irregularities in the amount of fuel injection and to enhance the engine performance.

    摘要翻译: 气缸盖(100a〜100f)分别设有燃料喷射器(101a〜101f),每个燃料喷射器(101a〜101f)以共同的方式与各接头(105a〜105f)连接 轨道(105)通过燃料喷射管(103a至103f)线性延伸,在该示例中,可以实现所有燃料喷射管(103a至103f)通过穿过喷射管 (103b,103c,103d和103e)连接,通过该结构,能够减少燃料喷射量的不均匀性,提高发动机性能。

    EXHAUST GAS TREATMENT UNIT
    6.
    发明申请
    EXHAUST GAS TREATMENT UNIT 有权
    排气处理单元

    公开(公告)号:US20140290781A1

    公开(公告)日:2014-10-02

    申请号:US14112122

    申请日:2013-03-29

    IPC分类号: F16L3/08

    摘要: An exhaust gas treatment unit includes an exhaust gas treatment device, a bracket and a connecting pipe. The exhaust gas treatment device is mounted on a bracket. The connecting pipe is connected to the exhaust gas treatment device. The connecting pipe directs exhaust gas to the exhaust gas treatment device. The connecting pipe may include a supporting portion and a pipe portion, with the supporting portion supporting the bracket and the pipe portion being integrated with the supporting portion. Alternatively, the exhaust gas treatment unit may further include a supporting member having a supporting portion supporting the bracket and a pipe portion integrated with the supporting portion, with the pipe portion connected to the connecting pipe.

    摘要翻译: 废气处理单元包括废气处理装置,支架和连接管。 废气处理装置安装在支架上。 连接管连接到废气处理装置。 连接管将废气引导到废气处理装置。 连接管可以包括支撑部分和管部分,其中支撑部分支撑支架,并且管部分与支撑部分一体化。 或者,废气处理单元还可以包括支撑构件,其具有支撑支架的支撑部和与支撑部一体的管部,管部连接到连接管。