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1. 发明授权

US06286483B1 Fuel injector with actuation pressure delay device 有权
标题翻译：具有致动压力延迟装置的燃油喷射器
公开(公告)号：US06286483B1
公开(公告)日：2001-09-11
申请号：US09553002
申请日：2000-04-19
申请人： Ning Lei , Xilin Yang , John F. Thuente
发明人： Ning Lei , Xilin Yang , John F. Thuente
IPC分类号： F02M700
CPC分类号： F02M57/026 , F02M57/025 , F02M59/105
摘要： A fuel injector including a delay device, the fuel injector having an electric controller for controlling the flow of a high pressure actuating fluid responsive to initiation and cessation of a pulse width command, the pulse width command defining the duration of an injection event, and an intensifier being in fluid communication with the controller, the intensifier being translatable to increase the pressure of a volume of fuel for injection into the combustion chamber of an engine; the delay device includes an apparatus, shiftable between a first disposition and a second disposition over a certain period of time after initiation of the pulse width command, the period of time effecting a delay in initiation of fuel injection after initiation of the pulse width command. In one embodiment, a bias against shifting the apparatus from said first disposition to the second disposition is effected by the actuating fluid to reduce variations in the delay period under variable actuating pressure conditions. A method of stabilizing fuel injection events, includes the steps of sending a pulse width command to a controller to define an injection event, the controller porting an actuating fluid to affect an intensifier responsive to reception of the pulse width command, and interposing a delay in the actuating fluid affecting the intensifier.
摘要翻译：一种燃料喷射器，包括延迟装置，燃料喷射器具有电控制器，用于响应于脉冲宽度指令的启动和停止来控制高压致动流体的流动，脉冲宽度命令限定喷射事件的持续时间，以及增压器与控制器流体连通，增压器可平移以增加用于喷射到发动机的燃烧室中的一定体积燃料的压力; 该延迟装置包括在开始脉冲宽度指令之后的特定时间段内可在第一布置和第二布置之间移位的装置，这是在开始脉冲宽度指令之后实现燃料喷射启动延迟的时间段。在一个实施例中，通过致动流体来实现将装置从所述第一布置移动到第二布置的偏压，以减小可变致动压力条件下的延迟周期的变化。一种稳定燃料喷射事件的方法包括以下步骤：向控制器发送脉冲宽度命令以限定喷射事件，控制器响应于脉冲宽度命令的接收而使致动流体移动以影响增强器，并且将延迟致动流体影响增压器。

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