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    • 9. 发明授权
    • Fuel injection system for an internal combustion engine
    • 内燃机燃油喷射系统
    • US07798130B2
    • 2010-09-21
    • US11997985
    • 2006-07-31
    • Jeffrey Allen
    • Jeffrey Allen
    • F02M51/06
    • F02D41/2096F02D9/1055F02D41/009F02D41/32F02D41/345F02D41/402F02D2200/0406F02D2400/06F02M26/17F02M51/04F02M51/0603F02M61/047F02M61/08F02M61/165F02M63/0015F02M63/0026F02M69/044Y02T10/44
    • With reference to FIG. 1, the present invention provides an internal combustion engine (10) comprising a variable volume combustion chamber (13); an air intake system (18,20,21) for delivering charge air to the combustion chamber (13); an exhaust system (17) for relaying combusted gas from the combustion chamber (13) to atmosphere; and a fuel injection system (19, 21, 22, 23, 24, 25, 26) for delivering fuel into the charge air for combustion therewith in the combustion chamber (13). The fuel injection system (19,21,22,23,24,25,26) comprises a fuel injector (19) which functions as a positive displacement pump and dispenses an amount of fuel which is fixed for each and every operation of the injector (19); and a controller (23) which controls the operation of the fuel injector (19). In. response to an increasing engine speed and/or load the controller (23) increases in amount the fuel delivered per engine cycle by increasing in number the occasions the fuel injector (19) is operated per engine cycle. In response to a decreasing engine speed and/or load the controller (23) reduces in amount the fuel delivered per engine cycle by reducing in number the occasions the fuel injector (19) is operated per engine cycle.
    • 参考图1。 如图1所示,本发明提供一种包括可变容积燃烧室(13)的内燃机(10)。 用于将增压空气输送到所述燃烧室(13)的进气系统(18,20,21)。 用于将燃烧气体从燃烧室(13)转移到大气的排气系统(17); 以及用于在燃烧室(13)中将燃料输送到用于燃烧的增压空气中的燃料喷射系统(19,21,22,23,24,25,26)。 燃料喷射系统(19,21,22,23,24,25,26)包括燃料喷射器(19),燃料喷射器(19)用作正排量泵并且分配一定量的燃料,该燃料量对于喷射器的每次操作都是固定的 (19); 以及控制燃料喷射器(19)的操作的控制器(23)。 在。 响应于增加的发动机速度和/或负载,控制器(23)通过在每个发动机循环中操作燃料喷射器(19)的情况下增加数量来增加每个发动机循环的燃料量。 响应于发动机转速和/或负载的降低,控制器(23)通过减少每个发动机循环中燃料喷射器(19)的操作次数来减少发动机循环中输送的燃料的量。