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公开(公告)号：US20110214643A1
公开(公告)日：2011-09-08
申请号：US13019058
申请日：2011-02-01
摘要： This disclosure relates a system for heating fuel supplied by a common rail fuel supply to an internal combustion engine. The system includes a high pressure fuel line, plural fuel injectors connected in series along the high pressure fuel line in the common rail, and a continuous low pressure passage including a heat exchanging portion in close proximity to the high pressure fuel line. A heated fluid source is operative to fluidly communicate with the continuous low pressure passage and circulate heated fluid to heat fuel present in the high pressure fuel line prior to, and during a cold start operation of the internal combustion engine. Other embodiments relate to a method of providing fuel to an internal combustion engine that includes sensing the temperature of fuel supplied to a fuel system and determining whether the sensed fuel temperature is greater than a predetermined value. The method includes circulating heated fluid in a continuous low pressure circuit to heat fuel present in a high pressure fuel line if the sensed fuel temperature is less than or equal to a predetermined value, and evacuating fluid for heating fuel from a portion of the continuous low pressure passage and fluidly connecting the evacuated portion of the continuous low pressure passage to a fuel leakage detection device if the sensed fuel temperature is greater than the predetermined value.
摘要翻译： 本公开涉及一种用于将由共轨燃料供应供应的燃料加热到内燃机的系统。 该系统包括高压燃料管线，沿着共轨中的高压燃料管路串联连接的多个燃料喷射器，以及包括紧邻高压燃料管线的热交换部分的连续低压通路。 加热的流体源可操作以与连续的低压通道流体连通并且循环加热的流体以在内燃机的冷起动操作之前和期间加热存在于高压燃料管路中的燃料。 其他实施例涉及向内燃机提供燃料的方法，其包括感测供应给燃料系统的燃料的温度并确定所检测的燃料温度是否大于预定值。 该方法包括在连续的低压回路中循环加热的流体以加热存在于高压燃料管线中的燃料，如果检测到的燃料温度小于或等于预定值，以及排出用于从连续低温部分加热燃料的流体 如果检测到的燃料温度大于预定值，则将连续低压通道的抽空部分流体连接到燃料泄漏检测装置。
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公开(公告)号：US08733324B2
公开(公告)日：2014-05-27
申请号：US13019058
申请日：2011-02-01
摘要： This disclosure relates a system for heating fuel supplied by a common rail fuel supply to an internal combustion engine. The system includes a high pressure fuel line, plural fuel injectors connected in series along the high pressure fuel line in the common rail, and a continuous low pressure passage including a heat exchanging portion in close proximity to the high pressure fuel line. A heated fluid source is operative to fluidly communicate with the continuous low pressure passage and circulate heated fluid to heat fuel present in the high pressure fuel line prior to, and during a cold start operation of the internal combustion engine. Other embodiments relate to a method of providing fuel to an internal combustion engine that includes sensing the temperature of fuel supplied to a fuel system and determining whether the sensed fuel temperature is greater than a predetermined value. The method includes circulating heated fluid in a continuous low pressure circuit to heat fuel present in a high pressure fuel line if the sensed fuel temperature is less than or equal to a predetermined value, and evacuating fluid for heating fuel from a portion of the continuous low pressure passage and fluidly connecting the evacuated portion of the continuous low pressure passage to a fuel leakage detection device if the sensed fuel temperature is greater than the predetermined value.
摘要翻译： 本公开涉及一种用于将由共轨燃料供应供应的燃料加热到内燃机的系统。 该系统包括高压燃料管线，沿着共轨中的高压燃料管路串联连接的多个燃料喷射器，以及包括紧邻高压燃料管线的热交换部分的连续低压通路。 加热的流体源可操作以与连续的低压通道流体连通并且循环加热的流体以在内燃机的冷起动操作之前和期间加热存在于高压燃料管路中的燃料。 其他实施例涉及向内燃机提供燃料的方法，其包括感测供应给燃料系统的燃料的温度并确定所检测的燃料温度是否大于预定值。 该方法包括在连续的低压回路中循环加热的流体以加热存在于高压燃料管线中的燃料，如果检测到的燃料温度小于或等于预定值，以及排出用于从连续低温部分加热燃料的流体 如果检测到的燃料温度大于预定值，则将连续低压通道的抽空部分流体连接到燃料泄漏检测装置。
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3.发明授权
公开(公告)号：US5268842A
公开(公告)日：1993-12-07
申请号：US620782
申请日：1990-12-03
CPC分类号： F02D41/34 , F02D41/2422 , F02D41/2445 , F02B3/06 , F02D41/2416 , Y02T10/44
摘要： A control system for controlling fueling and/or timing of a fuel injector in an internal combustion engine. Fuel injection is controlled based upon the recent operating history of the engine. In particular, the difference between the instantaneous speed and the average speed over a previous predetermined period are compared and the difference is utilized in determining a control variable which in turn can be used for selecting fueling and/or timing values. The difference between the instantaneous fueling and the average fueling over a predetermined period can also be used in selecting the control variable. The fuel injector fueling and/or timing is determined utilizing fueling and/or timing values from at least two maps, with the control variable determining the proportions of the timing/fueling valves to be utilized in determining commanded timing/fueling. The control variable may also be set to a fixed value under certain conditions such as during operation on a governor, or where the operator selects an override function.
摘要翻译： 一种用于控制内燃机中的燃料喷射器的燃料加注和/或定时的控制系统。 基于发动机的最近运行历史来控制燃油喷射。 特别地，比较在先前预定时段内的瞬时速度和平均速度之间的差异，并且将差值用于确定控制变量，而控制变量又可用于选择加油和/或定时值。 在预定时间段内瞬时燃料供给和平均燃料供给之间的差异也可用于选择控制变量。 使用来自至少两个地图的加油和/或定时值确定燃料喷射器加油和/或定时，其中控制变量确定要用于确定所命令的定时/加油的定时/加油阀的比例。 控制变量也可以在某些条件下被设置为固定值，例如在调速器上的操作期间，或者操作者选择超控功能时。
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