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公开(公告)号：US20110162619A1
公开(公告)日：2011-07-07
申请号：US12901624
申请日：2010-10-11
IPC分类号： F02M39/00
CPC分类号： F02M55/025 , F01N5/02 , F01P2037/02 , F01P2060/10 , F02B2075/125 , F02D41/047 , F02D41/068 , F02D2041/389 , F02M31/125 , F02M31/16 , F02M53/02 , Y02T10/123 , Y02T10/126
摘要： It has been found that direct-injection gasoline engines emit particulate matter during the first 500 seconds of operation due to fuel impacting combustion chamber surfaces. To largely overcome the fuel penetrating to surfaces in the combustion chamber, the fuel may be heated. In one embodiment, engine coolant that is heated in the water jacket portions nearest exhaust ducts is provided directly to a tube in physical contact with the fuel rail.In some embodiments, the tube is provided with an electric heating element. If the coolant pump is turned off at the initial portions of a cold start, the electric heater raises the temperature of the fuel in the fuel rail. After engine coolant temperature raises, water, warm coolant is provided to the tube proximate the fuel rail and the heater is turned off.
摘要翻译： 已经发现，由于燃料冲击燃烧室表面，直接喷射汽油发动机在操作的前500秒内发射颗粒物质。 为了在很大程度上克服燃烧室内燃料渗透的燃料，可以加热燃料。 在一个实施例中，在最靠近排气管道的水套部分中被加热的发动机冷却剂直接设置在与燃料轨道物理接触的管道上。 在一些实施例中，管设有电加热元件。 如果在冷启动的初始部分关闭冷却剂泵，则电加热器升高燃料轨道中的燃料的温度。 发动机冷却液温度升高后，靠近燃油轨道的管道上提供水，温暖的冷却液，加热器关闭。
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12.发明申请公开(公告)号：US20110132291A1
公开(公告)日：2011-06-09
申请号：US12631034
申请日：2009-12-04
IPC分类号： F01P7/14
CPC分类号： F01P7/167 , F01P2050/24 , F01P2060/08
摘要： Various systems and methods are described for a cooling system coupled to an engine in a vehicle. One example method comprises, during engine off, operating an auxiliary pump to flow coolant through a heater core; and, during engine running, operating an engine pump to flow coolant through the heater core and radiator, and selectively operating the auxiliary pump to assist flow through the heater core based on operating conditions.
摘要翻译： 描述了与车辆中的发动机相连的冷却系统的各种系统和方法。 一个示例性方法包括在发动机关闭期间操作辅助泵以使冷却剂流过加热器芯; 并且在发动机运行期间，操作发动机泵以使冷却剂流过加热器芯和散热器，并且基于操作条件选择性地操作辅助泵以辅助流过加热器芯。
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公开(公告)号：US07933711B1
公开(公告)日：2011-04-26
申请号：US12692455
申请日：2010-01-22
CPC分类号： F02D41/008 , F02D41/042 , F02D41/065 , F02D41/1475 , F02D2200/0406 , F02D2200/703 , F02N11/0855 , F02P5/1502 , Y02T10/46
摘要： Methods and systems are provided for expediting engine spin-down in an engine that is shutdown during engine idle-stop conditions and restarted during restart conditions. In one example, the method comprises, during an automatic engine idle-stop, turning off spark, operating a first cylinder with a rich ratio of air to injected fuel richer than a rich flammability limit, operating a second cylinder with a lean ratio of air to injected fuel leaner than a lean flammability limit, and mixing un-combusted exhaust from the first and second cylinders with exhaust, the exhaust mixture being substantially stoichiometric.
摘要翻译： 提供了方法和系统，用于在发动机怠速停止条件期间关闭的发动机中加速发动机转速并在再起动条件下重新起动。 在一个示例中，该方法包括在自动发动机怠速停止期间关闭火花，以较丰富的空气比率操作第一气缸，使喷射的燃料比富燃的燃烧极限更浓，操作具有空气比的空气比的第二气缸 将燃料比稀燃燃料极限稀释，并将来自第一和第二气缸的未燃烧排气与排气混合，排气混合物基本上是化学计量的。
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公开(公告)号：US20110005504A1
公开(公告)日：2011-01-13
申请号：US12498754
申请日：2009-07-07
IPC分类号： F02D41/00
CPC分类号： F02D41/064 , F02D41/0007 , F02M25/12
摘要： Various systems and methods are described for controlling an engine with a turbocharger in a vehicle. One example method comprises, under selected operating conditions, generating an oxidant rich component from engine intake air, storing the oxidant rich component of the intake air, and, under subsequent cold start conditions, injecting an amount of the stored oxidant rich component to the engine.
摘要翻译： 描述了用于在车辆中控制具有涡轮增压器的发动机的各种系统和方法。 一个示例性方法包括在选择的操作条件下，从发动机进气中产生富含氧化剂的组分，储存进气的富含氧化剂的组分，并且在随后的冷启动条件下，将一定量的存储的富氧组分注入发动机 。
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公开(公告)号：US20100300413A1
公开(公告)日：2010-12-02
申请号：US12472225
申请日：2009-05-26
CPC分类号： F02D9/12 , F02B29/0406 , F02D41/0032 , F02D41/005 , F02D41/0065 , F02D2041/141 , F02M25/089 , F02M26/19 , F02M26/23 , F02M26/47 , F02M35/10118 , F02M35/10222 , Y02T10/47
摘要： Systems and methods for an engine are described. In one example, a system may include a variable venturi coupled in an intake of the engine; an exhaust gas recirculation system having an exhaust gas recirculation flow path, the exhaust gas recirculation flow path coupled to the variable venturi; and a vacuum-utilizing device or system coupled to the variable venturi. In another example, a method may include coordinating adjustment of an exhaust gas recirculation valve coupled to the exhaust gas recirculation system, a fuel vapor purging valve coupled to the fuel vapor purging system, and the variable venturi in response to operating conditions.
摘要翻译： 描述发动机的系统和方法。 在一个示例中，系统可以包括耦合在发动机的入口中的可变文氏管; 排气再循环系统，其具有废气再循环流动路径，所述废气再循环流动路径连接到所述可变文丘里管; 以及耦合到可变文氏管的真空利用装置或系统。 在另一个实例中，一种方法可以包括：联结到排气再循环系统的排气再循环阀，与燃料蒸气净化系统相连的燃料蒸气清洗阀和响应于操作条件的可变文氏管的协调调节。
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公开(公告)号：US20100275880A1
公开(公告)日：2010-11-04
申请号：US12833714
申请日：2010-07-09
IPC分类号： F02M57/02
CPC分类号： F02D41/3845 , F02B1/12 , F02D41/042 , F02D41/22 , F02D2041/224 , F02D2041/225 , F02M63/022
摘要： A method for operation of a fuel delivery system in an internal combustion engine including a lower pressure pump, a higher pressure pump fluidly coupled downstream of the lower pressure pump, and a fuel rail fluidly coupled downstream of the high pressure pump. The method including initiating a mitigating action based on a fuel rail pressure response, the fuel rail pressure response occurring after an engine shut-down, where the mitigating action includes disabling vehicle operation if fuel rail pressure drops below a threshold value after activation of one of the pumps, the activation occurring before a subsequent engine start, the subsequent engine start occurring after the engine shut-down, and where the mitigating action includes adjusting operation of one of the pumps during the subsequent engine start if fuel rail pressure achieves at least the threshold value after or during the activation.
摘要翻译： 一种用于在内燃机中操作燃料输送系统的方法，所述内燃机包括下压力泵，低压泵下游流体耦合的较高压力泵以及流体耦合在高压泵下游的燃料轨。 该方法包括基于燃料轨压力响应启动减轻作用，在发动机关闭之后发生的燃料轨压力响应，其中减轻动作包括如果燃料轨压力在激活以下之一之后燃料轨压力低于阈值则禁止车辆操作 泵，在随后的发动机启动之前发生的激活，在发动机关闭之后发生后续的发动机起动，并且其中减轻动作包括在随后的发动机起动期间调节其中一个泵的操作，如果燃料轨道压力达到至少 激活之后或期间的阈值。
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公开(公告)号：US07762234B2
公开(公告)日：2010-07-27
申请号：US12107285
申请日：2008-04-22
CPC分类号： F02D41/3845 , F02B1/12 , F02D41/042 , F02D41/22 , F02D2041/224 , F02D2041/225 , F02M63/022
摘要： A method for operation of a fuel delivery system in an internal combustion engine including a lower pressure pump, a higher pressure pump fluidly coupled downstream of the lower pressure pump, and a fuel rail fluidly coupled downstream of the high pressure pump. The method including initiating a mitigating action based on a fuel rail pressure response, the fuel rail pressure response occurring after an engine shut-down, where the mitigating action includes disabling vehicle operation if fuel rail pressure drops below a threshold value after activation of one of the pumps, the activation occurring before a subsequent engine start, the subsequent engine start occurring after the engine shut-down, and where the mitigating action includes adjusting operation of one of the pumps during the subsequent engine start if fuel rail pressure achieves at least the threshold value after or during the activation.
摘要翻译： 一种用于在内燃机中操作燃料输送系统的方法，所述内燃机包括下压力泵，低压泵下游流体耦合的较高压力泵以及流体耦合在高压泵下游的燃料轨。 该方法包括基于燃料轨压力响应启动减轻作用，在发动机关闭之后发生的燃料轨压力响应，其中减轻动作包括如果燃料轨压力在激活以下之一之后燃料轨压力低于阈值则禁止车辆操作 泵，在随后的发动机启动之前发生的激活，在发动机关闭之后发生后续的发动机起动，并且其中减轻动作包括在随后的发动机起动期间调节其中一个泵的操作，如果燃料轨道压力达到至少 激活之后或期间的阈值。
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公开(公告)号：US20100170470A1
公开(公告)日：2010-07-08
申请号：US12348191
申请日：2009-01-02
IPC分类号： F02B3/00
CPC分类号： F02D41/20 , F02B2275/16 , F02D19/061 , F02D19/0615 , F02D19/0628 , F02D19/0647 , F02D19/0692 , F02D41/0025 , Y02T10/123 , Y02T10/36
摘要： A fuel delivery system for an engine and a method of its operation are described. The fuel delivery system includes a first fuel injector for delivering a first fuel to a cylinder of the engine; a second fuel injector for delivering a second fuel to the cylinder; an electrical relay system disposed between a first electrical potential and each of the first and second fuel injectors; an electronic driver disposed between a second electrical potential and each of the first and second fuel injectors; and a control module. The control module is configured to switch the electrical relay system between first and second positions to select one of the first and second fuels, respectively. The electronic driver is closed by the control module to deliver the selected one of the first or second fuel to the first cylinder via a respective one of the first or second fuel injectors.
摘要翻译： 描述了用于发动机的燃料输送系统及其操作方法。 燃料输送系统包括用于将第一燃料输送到发动机气缸的第一燃料喷射器; 用于将第二燃料输送到气缸的第二燃料喷射器; 设置在第一电位与第一和第二燃料喷射器中的每一个之间的继电器系统; 设置在第二电位与第一和第二燃料喷射器中的每一个之间的电子驱动器; 和控制模块。 控制模块被配置为在第一和第二位置之间切换继电器系统以分别选择第一和第二燃料中的一个。 电子驱动器被控制模块封闭，以通过第一或第二燃料喷射器中的相应一个将所选择的第一或第二燃料中的一个输送到第一气缸。
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公开(公告)号：US20100024770A1
公开(公告)日：2010-02-04
申请号：US12184056
申请日：2008-07-31
CPC分类号： F02M37/0088 , F02D19/12 , F02M37/0064
摘要： A fuel delivery system for a multi-fuel internal combustion engine and an approach for operating the fuel delivery system are provided. The fuel delivery system can be operated in two or more different fuel delivery modes according to operating conditions of the engine or fuel delivery system. A first example mode can be performed to concurrently deliver two or more fuels to the engine. A second example mode can be performed to transfer fuel from a first fuel storage tank to a second fuel storage tank. A third example mode can be performed to supply a fuel from a first fuel storage tank to at least two fuel injectors of each cylinder of the engine. In some embodiments, the various modes of operation may be selected by varying a fuel pressure that is provided by the fuel delivery system.
摘要翻译： 提供了一种用于多燃料内燃机的燃料输送系统和用于操作燃料输送系统的方法。 燃料输送系统可以根据发动机或燃料输送系统的操作条件在两种或更多种不同的燃料输送模式下操作。 可以执行第一示例模式以将两种或更多种燃料同时传送到发动机。 可以执行第二示例模式以将燃料从第一燃料储存箱转移到第二燃料储存箱。 可以执行第三示例模式以将燃料从第一燃料储存箱提供给发动机的每个气缸的至少两个燃料喷射器。 在一些实施例中，可以通过改变由燃料输送系统提供的燃料压力来选择各种操作模式。
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公开(公告)号：US07640916B2
公开(公告)日：2010-01-05
申请号：US12021498
申请日：2008-01-29
CPC分类号： F02D33/003 , F02B2075/125 , F02D13/0253 , F02D41/3082 , F02D2041/389 , F02M37/0058 , F02M37/10 , F02M55/04 , F02M59/102 , F02M63/028 , Y02T10/123
摘要： An economical method for controlling a lift pump operating as part of a direct injection fuel system is described. According to the method, the lift pump is operated at efficient operating conditions and then stopped until additional fuel is requested.
摘要翻译： 描述了用于控制作为直接喷射燃料系统的一部分操作的提升泵的经济方法。 根据该方法，提升泵在有效的操作条件下操作，然后停止，直到需要额外的燃料。
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