Fuel injector for an internal combustion engine
    2.
    发明授权
    Fuel injector for an internal combustion engine 有权
    用于内燃机的燃油喷射器

    公开(公告)号:US06779513B2

    公开(公告)日:2004-08-24

    申请号:US10143250

    申请日:2002-05-10

    IPC分类号: F02M5100

    摘要: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine. Efficient combustion is promoted by forming an aerosol of fine droplet size when the substantially vaporized fuel condenses in air.

    摘要翻译: 一种用于汽化用于内燃机的液体燃料的燃料喷射器。 所述燃料喷射器包括至少一个毛细管流动通道,所述至少一个毛细管流动通道具有入口端和出口端,用于将所述至少一个毛细管流动通道的入口端与所述液体流体连通的流体控制阀 燃料源并且以基本上液体状态引入液体燃料,沿着至少一个毛细管流动通道布置的热源,所述热源可操作以将所述至少一个毛细管流动通道中的液体燃料加热至足以在 其至少一部分从液体状态转移到蒸汽状态,并且从所述至少一个毛细管流动通道的出口端输送基本上蒸发的燃料流,以及用于清洁在设备操作期间形成的沉积物的装置。 燃油喷射器有效地减少内燃机的冷启动和预热排放。 当基本蒸发的燃料在空气中冷凝时,通过形成细小液滴尺寸的气溶胶来促进有效的燃烧。

    Capillary fuel injector with metering valve for an internal combustion engine
    6.
    发明授权
    Capillary fuel injector with metering valve for an internal combustion engine 有权
    带内燃机计量阀的毛细管燃油喷射器

    公开(公告)号:US06820598B2

    公开(公告)日:2004-11-23

    申请号:US10342267

    申请日:2003-01-15

    IPC分类号: F02B5100

    摘要: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and a valve for metering fuel to the internal combustion engine, the valve located proximate to the outlet end of the at least one capillary flow passage, the valve including a low mass member for substantially occluding the stream of fuel to the internal combustion engine; wherein the low mass member for substantially occluding the stream of fuel to the internal combustion engine is formed of a material having low mass and or a low coefficient of thermal conductivity. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.

    摘要翻译: 一种用于汽化用于内燃机的液体燃料的燃料喷射器。 燃料喷射器包括至少一个毛细管流动通道,沿着至少一个毛细管流动通道布置的热源,该热源可操作以将至少一个毛细管流动通道中的液体燃料加热至足以改变至少一个 其部分从液体状态转变为蒸汽状态,并从所述至少一个毛细管流动通道的出口端输送基本上蒸发的燃料流; 以及用于向内燃机计量燃料的阀,所述阀位于所述至少一个毛细管流动通道的出口端附近,所述阀包括用于将所述燃料流基本上封闭到所述内燃机的低质量构件; 其中用于将燃料流基本上封闭到内燃机的低质量构件由具有低质量或低导热系数的材料形成。 燃油喷射器有效地减少内燃机的冷启动和预热排放。

    Control method and apparatus for use in an alcohol fueled internal combustion engine
    8.
    发明授权
    Control method and apparatus for use in an alcohol fueled internal combustion engine 有权
    用于酒精燃料内燃机的控制方法和装置

    公开(公告)号:US07237539B2

    公开(公告)日:2007-07-03

    申请号:US10975304

    申请日:2004-10-28

    IPC分类号: F02D41/06

    摘要: A method for controlling a fuel system of an internal combustion engine. The method is employed with a fuel system having a source of alcohol-containing liquid fuel, at least one fuel injector, a heat source for heating the liquid fuel in the at least one fuel injector, the heat source capable of heating the liquid fuel to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state and a metering valve operable to achieve a range of flow rates characterized by a valve open versus valve closed duty cycle. The method includes the steps of metering a predetermined amount of fuel based on engine operating conditions, controlling power supplied to the heat source of the at least one fuel injector to achieve a target temperature, determining alcohol concentration of the fuel and adjusting the power supplied to the heat source of the at least one fuel injector based on the alcohol concentration determination. A method of determining alcohol concentration and a fuel system for use in an alcohol fueled internal combustion engine is also provided.

    摘要翻译: 一种用于控制内燃机的燃料系统的方法。 该方法与具有含醇液体燃料源的燃料系统一起使用,至少一个燃料喷射器,用于加热至少一个燃料喷射器中的液体燃料的热源,能够加热液体燃料的热源 足以将其至少一部分从液态转化为蒸汽状态的水平和计量阀,其可操作以实现以阀打开与阀关闭占空比为特征的一定范围的流量。 该方法包括以下步骤:基于发动机操作条件计量预定量的燃料,控制提供给至少一个燃料喷射器的热源的功率以达到目标温度,确定燃料的酒精浓度并调节供应给 基于酒精浓度测定的至少一个燃料喷射器的热源。 还提供了一种确定酒精浓度的方法和用于醇燃料内燃机的燃料系统。