Low emissions compression ignited engine technology
    1.
    发明授权
    Low emissions compression ignited engine technology 有权
    低排放压缩点火发动机技术

    公开(公告)号:US07198024B2

    公开(公告)日:2007-04-03

    申请号:US11333391

    申请日:2006-01-17

    IPC分类号: F02B1/14

    摘要: A method and apparatus for operating a compression ignition engine having a cylinder wall, a piston, and a head defining a combustion chamber. The method and apparatus includes delivering fuel substantially uniformly into the combustion chamber, the fuel being dispersed throughout the combustion chamber and spaced from the cylinder wall, delivering an oxidant into the combustion chamber sufficient to support combustion at a first predetermined combustion duration, and delivering a diluent into the combustion chamber sufficient to change the first predetermined combustion duration to a second predetermined combustion duration different from the first predetermined combustion duration.

    摘要翻译: 一种用于操作具有气缸壁,活塞和限定燃烧室的头部的压燃式发动机的方法和装置。 该方法和装置包括将燃料基本上均匀地输送到燃烧室中,燃料分散在整个燃烧室中并与气缸壁间隔开,将氧化剂输送到燃烧室中,足以在第一预定燃烧持续时间内支持燃烧, 稀释剂进入燃烧室,足以将第一预定燃烧持续时间改变到与第一预定燃烧持续时间不同的第二预定燃烧持续时间。

    Back pressure valve drive EGR system
    3.
    发明授权
    Back pressure valve drive EGR system 有权
    背压阀驱动EGR系统

    公开(公告)号:US06422217B1

    公开(公告)日:2002-07-23

    申请号:US09740591

    申请日:2000-12-19

    IPC分类号: F02B4708

    摘要: An internal combustion engine exhaust gas recirculation (EGR) system includes an exhaust gas manifold back pressure valve insert assembly which has an exhaust gas recirculation (EGR) conduit interposed between exhaust manifold structure of the engine and atmospheric exhaust structure, and a valve mechanism disposed within the exhaust gas recirculation (EGR) conduit and movable between a fully closed position at which all exhaust gases from the engine pass to atmospheric exhaust through the atmospheric exhaust structure, and a fully opened position at which the valve mechanism partially occludes the atmospheric exhaust structure such that a sufficiently large back pressure is developed with respect to the atmospheric exhaust structure such that exhaust gases are forced through the exhaust gas recirculation (EGR) conduit.

    摘要翻译: 内燃机废气再循环(EGR)系统包括排气歧管背压阀插入组件,其具有置于发动机的排气歧管结构和大气排气结构之间的排气再循环(EGR)管道,以及设置在发动机内部的阀机构 排气再循环(EGR)管道,并且可在所有来自发动机的所有废气通过大气排气结构的大气排气的完全关闭位置和完全打开位置之间移动,所述阀机构部分地封闭大气排气结构, 相对于大气排气结构产生足够大的背压,使得废气被迫通过废气再循环(EGR)导管。

    Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine
    4.
    再颁专利
    Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine 失效
    用于向内燃机的气缸输送多次燃料喷射的方法和装置

    公开(公告)号:USRE40144E1

    公开(公告)日:2008-03-11

    申请号:US11356424

    申请日:2006-02-16

    IPC分类号: F02B3/00 F02B3/02

    摘要: A fuel injection control system and method for delivering multiple fuel injections to a cylinder of an engine during a fuel injection event based upon engine operating conditions, the control system including an electronic controller coupled to an electrically controlled fuel injector, and a plurality of sensors coupled to the controller for inputting certain signals representative of certain engine operating conditions of the engine, the controller being operable to output a fuel injection signal to the fuel injector to deliver a first, a second, and a third fuel shot to the cylinder during a fuel injection event based upon the sensor signals. The controller also delivers each of the multiple fuel injection shots within defined cylinder piston displacement parameters during a particular piston stroke, within defined fuel apportionment limits, and within defined delay limits between each respective fuel shot so as to control exhaust emissions.

    摘要翻译: 一种燃料喷射控制系统和方法,用于在燃料喷射事件期间基于发动机操作条件将多个燃料喷射传递到发动机的气缸,所述控制系统包括耦合到电控燃料喷射器的电子控制器和耦合到 控制器用于输入表示发动机的某些发动机工作条件的某些信号,所述控制器可操作地将燃料喷射信号输出到燃料喷射器,以在燃料期间将第一,第二和第三燃料喷射到气缸中 基于传感器信号的注入事件。 控制器还在特定的活塞冲程内,在确定的燃料分配限度内,并且在每个相应的燃料喷射之间的限定的延迟限度内,将定义的气缸活塞位移参数内的多个燃料喷射射击中的每一个传送到控制废气排放。

    Flow sensor
    9.
    发明授权
    Flow sensor 有权
    流量传感器

    公开(公告)号:US07278411B1

    公开(公告)日:2007-10-09

    申请号:US11398938

    申请日:2006-04-06

    IPC分类号: F02B47/08 F02M25/07

    摘要: An exhaust system for receiving exhaust gas of an engine is provided. The exhaust system comprises a cooler configured to cool at least a portion of exhaust gas, a pressure sensor configured to measure an exhaust pressure drop across the cooler, and a controller configured to determine exhaust flowrate as a function the measured pressure drop across the cooler. Also provided is a method for operating an engine. The method comprises the steps of combusting a fuel and air mixture, exhausting at least some of the combusted fuel and air mixture as exhaust gas to an exhaust system of an engine, cooling at least some of the combusted exhaust gas in a cooler, measuring pressure drop of the exhaust gas across the cooler, and determining a flowrate of the exhaust gas across the cooler as a function of pressure drop.

    摘要翻译: 提供一种用于接收发动机废气的排气系统。 排气系统包括被配置为冷却排气的至少一部分的冷却器,配置成测量冷却器两端的排气压降的压力传感器以及被配置为确定作为测量的冷却器压降的函数的排气流量的控制器。 还提供了一种用于操作发动机的方法。 该方法包括以下步骤:燃烧燃料和空气混合物,将至少部分燃烧的燃料和空气混合物作为排气排放到发动机的排气系统中,在冷却器中冷却至少部分燃烧废气,测量压力 通过冷却器排出废气,并且确定排气通过冷却器的流量作为压降的函数。