Control method and apparatus for use in an alcohol fueled internal combustion engine
    5.
    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。

    Multiple capillary fuel injector for an internal combustion engine
    8.
    发明授权
    Multiple capillary fuel injector for an internal combustion engine 有权
    用于内燃机的多毛细管燃油喷射器

    公开(公告)号:US07357124B2

    公开(公告)日:2008-04-15

    申请号:US10975269

    申请日:2004-10-28

    IPC分类号: F02B51/00

    摘要: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes a plurality of capillary flow passages, each of the plurality of capillary flow passages having an inlet end and an outlet end; a heat source arranged along each of the plurality of capillary flow passages, the heat source operable to heat the liquid fuel in each of the plurality of capillary flow passages 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 each outlet end of the plurality of capillary flow passages; and a valve for metering substantially vaporized fuel to the internal combustion engine, the valve located proximate to each outlet end of the plurality of capillary flow passages. 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。 燃料喷射器包括多个毛细管流动通道,多个毛细管流动通道中的每一个具有入口端和出口端; 沿着所述多个毛细管流动通道中的每一个布置的热源,所述热源可操作以将所述多个毛细管流动通道中的每一个中的液体燃料加热至足以将其至少一部分从液体状态改变为蒸气的水平 并且从多个毛细管流动通道的每个出口端输送基本上蒸发的燃料流; 以及用于向内燃机计量基本上蒸发的燃料的阀,该阀位于多个毛细管流动通道的每个出口端附近。 燃油喷射器有效地减少内燃机的冷启动和预热排放。

    Capillary heating control and fault detection system and methodology for fuel system in an internal combustion engine
    9.
    发明授权
    Capillary heating control and fault detection system and methodology for fuel system in an internal combustion engine 有权
    内燃机燃油系统的毛细管加热控制和故障检测系统及方法

    公开(公告)号:US07032576B2

    公开(公告)日:2006-04-25

    申请号:US10410957

    申请日:2003-04-10

    IPC分类号: F02B33/00

    摘要: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine. The fuel system of the present invention also provides fault detection capabilities with respect to malfunctions within the capillary flow passage.

    摘要翻译: 一种用于内燃机的燃料系统包括多个燃料喷射器,每个喷射器包括至少一个毛细管流动通道,该至少一个毛细管流动通道具有一个入口端和一个出口端, 至少一个毛细管流动通道,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到足以将其至少一部分从液态转换成蒸气状态的水平,以及用于计量燃料的阀 所述内燃机,控制器,用于控制提供给所述多个燃料喷射器中的每一个的热源的功率以实现预定的目标温度;用于确定发动机空气流的传感器;以及用于测量指示度的值的传感器 的内燃机的发动机预热。 本发明的燃料系统还提供关于毛细管流动通道内的故障的故障检测能力。