Dual mode EGR valve
    3.
    发明授权
    Dual mode EGR valve 有权
    双模式EGR阀

    公开(公告)号:US06964270B2

    公开(公告)日:2005-11-15

    申请号:US10637361

    申请日:2003-08-08

    IPC分类号: F02M25/07

    摘要: A preferred embodiment EGR valve permits exhaust gas to be induced into the intake line downstream of the compressor, while minimizing the need to reduce the size of the turbocharger. The preferred embodiment EGR valve exploits variations around the mean pressure in the EGR passage created by the engine cycle by selectively opening when the pressure in the EGR valve exceeds the pressure in the intake line. Thus, exhaust gas is recirculated even when the engine is running near torque peak. The preferred embodiment EGR valve also exploits the higher mean pressure in the exhaust line relative to the intake line at higher engine speeds by remaining open, in order to minimize the energy consumed in opening and closing the EGR valve.

    摘要翻译: 优选的实施方案EGR阀允许排气被吸入到压缩机下游的进气管路中,同时最小化减小涡轮增压器尺寸的需要。 EGR阀利用在发动机循环所产生的EGR通路中的平均压力周围的变化,当EGR阀中的压力超过进气管线中的压力时,选择性地打开EGR阀。 因此,即使当发动机在扭矩峰值附近运行时,废气也被再循环。 在优选实施例中,EGR阀还通过保持打开来利用在较高发动机转速下相对于进气管线的排气管线中较高的平均压力,以便最小化打开和关闭EGR阀时消耗的能量。

    Effervescent injector for diesel engines
    4.
    发明授权
    Effervescent injector for diesel engines 失效
    用于柴油发动机的泡腾喷射器

    公开(公告)号:US5884611A

    公开(公告)日:1999-03-23

    申请号:US949755

    申请日:1997-10-14

    摘要: An effervescent fuel injector, particularly one suitable for diesel and direct injection engine applications, which is capable of injecting, particularly intermittently, an atomized fuel spray with droplets of a size in the range of 5-6 micron SMD without requiring high pressures is achieved in a preferred embodiment effervescent fuel injector of the valve covered orifice (VCO) type having primary and secondary nozzle valves which remain closed when the control valve is not actuated, but which open one or two sets of nozzle orifices depending on fuel volume requirements. A three-way, on-off control valve is used to trigger commencement of the supply of gas via a control valve simultaneously with opening of at least some of the nozzle orifices. Gas and fuel are mixed in a mixing chamber located upstream of the nozzle valves in a manner creating a gas-fuel aeration, and as the aeration is sprayed from the nozzle orifices, the gas expands rapidly breaking the fuel into fine droplets.

    摘要翻译: 一种泡腾式燃料喷射器,特别适用于柴油和直接喷射发动机应用的喷嘴,其能够特别间歇地喷射尺寸在5-6微米SMD范围内的液滴的雾化燃料喷雾而不需要高压,实现在 具有主喷嘴阀和辅助喷嘴阀的阀盖孔(VCO)的优选实施例泡腾式燃料喷射器,当控制阀未被致动时保持关闭,而根据燃料量要求打开一组或​​两组喷嘴孔。 三通开关控制阀用于通过控制阀同时打开至少一些喷嘴孔来启动气体的供给。 气体和燃料以形成气体燃料通气的方式在喷嘴阀的上游的混合室中混合,并且当喷嘴从喷嘴孔喷射时,气体迅速膨胀,将燃料分解成细小液滴。

    Real-time mass flow measurement
    5.
    发明授权
    Real-time mass flow measurement 失效
    实时质量流量测量

    公开(公告)号:US06367316B1

    公开(公告)日:2002-04-09

    申请号:US09058869

    申请日:1998-04-13

    IPC分类号: G01M1500

    摘要: A real-time mass flow measurement system that accurately measures fuel mass delivered to each cylinder per stroke of an injection pump or a fuel injector in an internal combustion engine. In accordance with preferred embodiment of the present invention, the mass flow measurement system and method includes a fuel measuring device that measures fuel delivered by one of the plurality of fuel injectors or fuel pumps. The preferred embodiment also includes a fuel transfer circuit for directing fuel flow to the fuel measuring device and a plurality of fuel diverting devices positioned along the fuel transfer circuit for diverting fuel flow from the plurality of fuel injectors or pumps into the fuel transfer circuit and a fuel routing device positioned along the fuel transfer circuit for routing the diverted fuel flow to either the fuel measuring device or a fuel drain. The mass flow measurement system further includes a data acquisition system including a digital computer and a flow controller for controlling the fuel routing device. The digital computer includes a software program for receiving operator input data, controlling the fuel diverting devices and obtaining measurement data from the precision bore cylinder. The flow controller includes discrete logic components for generating signals to control the fuel routing valve thereby providing consistent timing control.

    摘要翻译: 一种实时的质量流量测量系统,其精确地测量在内燃机中的喷射泵或燃料喷射器的每行程输送到每个气缸的燃料质量。 根据本发明的优选实施例,质量流量测量系统和方法包括测量由多个燃料喷射器或燃料泵之一输送的燃料的燃料测量装置。 优选实施例还包括用于将燃料流引导到燃料测量装置的燃料传递电路和沿着燃料传输电路定位的多个燃料转向装置,用于将燃料流从多个燃料喷射器或泵转向燃料传输回路,以及 燃料路由装置沿着燃料传输电路定位,用于将转向的燃料流路由到燃料测量装置或燃料排放口。 质量流量测量系统还包括数据采集系统,其包括数字计算机和用于控制燃料路由设备的流量控制器。 数字计算机包括用于接收操作者输入数据的软件程序,控制燃料转向装置并从精密孔筒获得测量数据。 流量控制器包括用于产生信号以控制燃料路由阀的分立逻辑部件,从而提供一致的时序控制。

    Internal combustion engine producing low emissions
    6.
    发明授权
    Internal combustion engine producing low emissions 有权
    内燃机产生低排放

    公开(公告)号:US07210448B2

    公开(公告)日:2007-05-01

    申请号:US11227420

    申请日:2005-09-16

    IPC分类号: F02B3/06 F02B31/00 F02F3/26

    摘要: An engine is provided which includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process minimizing NOx emissions and particulates. The combustion chamber includes one or more of the following: a spray angle relative to an inner bowl floor angle; a vertical distance from the tip of the piston bowl to the injection orifices; a number of injection orifices; a swirl ratio; a vertical distance from the injection orifices to an inner face of the cylinder head; a radius of curvature of an outer bowl section; chamfer with dimensional parameters; and a transition radius.

    摘要翻译: 提供了一种发动机,其包括各种精确的配置参数,包括燃烧室特征的尺寸,形状和/或相对定位,从而产生最小化NOx排放物和微粒的燃烧过程。 燃烧室包括以下中的一个或多个:相对于内碗底板角度的喷射角度; 从活塞碗顶端到注射孔的垂直距离; 一些注射孔; 漩涡比例 从喷射孔到气缸盖的内表面的垂直距离; 外碗部分的曲率半径; 倒角与尺寸参数; 和过渡半径。

    Internal combustion engine producing low emissions
    7.
    发明授权
    Internal combustion engine producing low emissions 有权
    内燃机产生低排放

    公开(公告)号:US06966294B2

    公开(公告)日:2005-11-22

    申请号:US10814332

    申请日:2004-04-01

    摘要: An engine is provided which includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process minimizing NOx emissions and particulates. The combustion chamber includes a spray angle relative to an inner bowl floor angle that maximizes the amount of fuel in contact with the inner bowl, in combination with one or more of the following: a vertical distance from the tip of the piston bowl to the injection orifices; a number of injection orifices; a swirl ratio; a vertical distance from the injection orifices to an inner face of the cylinder head; a distance from the piston top surface to the cylinder head; a radius of curvature of an outer bowl section; a radius of curvature at an edge of the piston bowl; a ratio of the piston bowl diameter to the cylinder diameter; and the cylinder diameter.

    摘要翻译: 提供了一种发动机,其包括各种精确的配置参数,包括燃烧室特征的尺寸,形状和/或相对定位,从而产生最小化NOx排放物和微粒的燃烧过程。 燃烧室包括相对于内碗底板角度的喷射角度,其使与内碗接触的燃料量最大化,结合以下一个或多个:从活塞碗的顶端到喷射器的垂直距离 孔; 一些注射孔; 漩涡比例 从喷射孔到气缸盖的内表面的垂直距离; 从活塞顶面到气缸盖的距离; 外碗部分的曲率半径; 活塞碗边缘的曲率半径; 活塞碗直径与气缸直径的比值; 和气缸直径。

    Internal combustion engine producing low emissions
    8.
    发明授权
    Internal combustion engine producing low emissions 有权
    内燃机产生低排放

    公开(公告)号:US06732703B2

    公开(公告)日:2004-05-11

    申请号:US10166051

    申请日:2002-06-11

    IPC分类号: F02B306

    摘要: An engine is provided which includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process minimizing NOx emissions and particulates. The combustion chamber includes a spray angle relative to an inner bowl floor angle that maximizes the amount of fuel in contact with the inner bowl, in combination with one or more of the following: a vertical distance from the tip of the piston bowl to the injection orifices; a number of injection orifices; a swirl ratio; a vertical distance from the injection orifices to an inner face of the cylinder head; a distance from the piston top surface to the cylinder head; a radius of curvature of an outer bowl section; a radius of curvature at an edge of the piston bowl; a ratio of the piston bowl diameter to the cylinder diameter; and the cylinder diameter.

    摘要翻译: 提供了一种发动机,其包括各种精确的配置参数,包括燃烧室特征的尺寸,形状和/或相对定位,从而产生最小化NOx排放物和微粒的燃烧过程。 燃烧室包括相对于内碗底板角度的喷射角度,其使与内碗接触的燃料量最大化,结合以下一个或多个:从活塞碗的顶端到喷射器的垂直距离 孔; 一些注射孔; 漩涡比例 从喷射孔到气缸盖的内表面的垂直距离; 从活塞顶面到气缸盖的距离; 外碗部分的曲率半径; 活塞碗边缘的曲率半径; 活塞碗直径与气缸直径的比值; 和气缸直径。