公开(公告)号：US20140076291A1

公开(公告)日：2014-03-20

申请号：US14115472

申请日：2012-07-30

申请人： Hoi Ching Wong

发明人： Hoi Ching Wong

IPC分类号： F02M25/07

CPC分类号： F02M26/13 ,  F02B1/12 ,  F02B29/0406 ,  F02D19/0647 ,  F02D19/081 ,  F02D19/105 ,  F02D35/025 ,  F02D41/0007 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/0057 ,  F02D41/3047 ,  F02D41/405 ,  F02M21/0239 ,  F02M21/042 ,  F02M26/27 ,  F02M26/28 ,  Y02T10/128 ,  Y02T10/144 ,  Y02T10/36 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/47

摘要： A method of fueling an internal combustion engine including operating the internal combustion engine in a dual-fuel mode in which the engine is fueled by a pre-mixed charge of fresh air, recirculated exhaust gases, gaseous fuel as primary fuel and early injected liquid fuel as a secondary fuel, ignited by a late injected pilot fuel to provide low temperature combustion. The method further includes adjusting EGR and/or fresh airflow to the engine to maintain peak in-cylinder temperature in a desired range, preferably between 1500 K and 2000 K. EGR preferably is controlled to obtain a desired in-cylinder O2 mole fraction, and fresh airflow preferably is controlled to obtain a desired fresh air lambda.

摘要翻译： 一种燃烧内燃机的方法，包括以双燃料模式操作内燃机，其中发动机通过新鲜空气，再循环废气，气体燃料作为主要燃料和早期注入的液体燃料的预混合装料来燃料 作为二次燃料，被晚期喷射的引燃燃料点燃以提供低温燃烧。 该方法还包括调节发动机的EGR和/或新鲜气流以将缸内温度保持在期望范围内，优选地在1500K和2000K之间。EGR优选地被控制以获得期望的缸内O2摩尔分数，以及 新鲜气流优选地被控制以获得所需的新鲜空气λ。

公开(公告)号：US20110213545A1

公开(公告)日：2011-09-01

申请号：US13034946

申请日：2011-02-25

申请人： Robert Oaten ,  Hoi Ching Wong

发明人： Robert Oaten ,  Hoi Ching Wong

IPC分类号： F02D41/30 ,  F02D45/00

CPC分类号： F02D41/02 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/105 ,  F02D41/0025 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/266 ,  F02D41/28 ,  F02D41/401 ,  F02D2250/12 ,  Y02T10/36 ,  Y02T10/44

摘要： The timing of a controlled event is advanced or retarded in an IC engine by emulating the engine speed and position signal pattern prior to transmission of that signal pattern to an output such as a fuel injector. In a multi-controller engine in which a second controller is controlled at least in part by signals delivered by first controller, the signal preferably is emulated in the first controller prior to transmission to the second engine controller in order to allow the shifting of a timing of a controlled event without direct data transfer from the second controller to the first controller. The technique is particularly well-suited for controlling diesel fuel injection in a dual fuel or other multi-fuel engine. In this case, the first controller must be a dual fuel controller and the second controller may be a diesel controller.

摘要翻译： 通过在将该信号图案发送到诸如燃料喷射器的输出之前模拟发动机速度和位置信号模式，IC引擎中的受控事件的定时被提前或延迟。 在其中第二控制器至少部分地由第一控制器传送的信号控制的多控制器引擎中，在传输到第二发动机控制器之前，该信号优选地在第一控制器中被仿真，以允许定时 没有从第二控制器到第一控制器的直接数据传送的受控事件。 该技术特别适用于控制双燃料或其他多燃料发动机中的柴油燃料喷射。 在这种情况下，第一控制器必须是双燃料控制器，而第二控制器可以是柴油控制器。

公开(公告)号：US07282185B2

公开(公告)日：2007-10-16

申请号：US10105571

申请日：2002-03-26

申请人： Harold L. Harris

发明人： Harold L. Harris

IPC分类号： B01D53/34 ,  F01N3/28

CPC分类号： B01D53/9454 ,  F01N1/084 ,  F01N3/2885 ,  F01N2470/10 ,  Y02T10/22

摘要： Apparatus for controlling emissions from an internal combustion engine including an enclosed housing one end of which is provided with an inlet and the other end an outlet. A coaxial tubular member extends from the inlet into the housing. A catalytic cell surrounds the tubular member and separates two chambers, a first surrounding the tubular member near the inlet and the other on the opposite side of the catalytic cell. Exhaust gases from the internal combustion engine flow through the tubular member, expanding into the other chamber, then through the catalytic cell for conversion of nitrogen oxides, carbon monoxide and unburned hydrocarbons to less noxious components, expanding into the first chamber for eventual discharge through the outlet.

摘要翻译： 用于控制来自内燃机的排放物的装置，包括封闭的壳体，其一端设有入口，另一端设有出口。 同轴管状构件从入口延伸到壳体中。 催化单元围绕管状构件并分离两个腔室，首先围绕入口附近的管状构件和在催化室的相对侧上的另一个室。 来自内燃机的废气流过管状构件，膨胀到另一个室中，然后通过催化池，用于将氮氧化物，一氧化碳和未燃碳氢化合物转化成较少的有害成分，扩展到第一室以最终通过 出口。

公开(公告)号：US08527186B2

公开(公告)日：2013-09-03

申请号：US12877487

申请日：2010-09-08

申请人： Hoi Ching Wong ,  Madhusudhan Chellappa ,  Carlos Gamez

发明人： Hoi Ching Wong ,  Madhusudhan Chellappa ,  Carlos Gamez

IPC分类号： F02D41/14 ,  G06F19/00

CPC分类号： F02D41/0027 ,  F02D19/027 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/105 ,  F02D41/1402 ,  F02D41/1454 ,  F02D41/1458 ,  F02D2041/1432 ,  Y02T10/32 ,  Y02T10/36

摘要： A computer-implemented method is used to correct deviations between a predicted gas excess air ratio and a calculated excess air ratio in a dual fuel engine or other gas fueled compression ignition engine. The method includes determining gas excess air ratio for the engine based at least in part on at least one detected current operating parameter and calculating a predicted exhaust gas oxygen concentration engine based on the predicted gas excess air ratio. A time based filtered predicted exhaust gas oxygen concentration value may then be calculated and compared to a time-based filtered measured exhaust gas oxygen concentration value. The resultant oxygen concentration deviation value may be used to generate a corrected predicted gas excess air ratio.

摘要翻译： 使用计算机实现的方法来校正双燃料发动机或其它气体燃料压缩点火发动机中预测的气体过量空气比和计算的过量空气比之间的偏差。 该方法包括至少部分地基于至少一个检测到的当前操作参数来确定发动机的气体过量空气比，并且基于预测的气体过量空气比计算预测排气氧浓度发动机。 然后可以计算基于时间的过滤的预测废气氧浓度值，并将其与基于时间的过滤的测量废气氧浓度值进行比较。 所得到的氧浓度偏差值可用于产生经校正的预测气体过量空气比。

公开(公告)号：US20100332106A1

公开(公告)日：2010-12-30

申请号：US12494889

申请日：2009-06-30

申请人： Marc Vanderslice ,  Greg Wiedemeier

发明人： Marc Vanderslice ,  Greg Wiedemeier

IPC分类号： F02D41/04 ,  F02B17/00 ,  F02B3/00 ,  F02M43/00

CPC分类号： F02D19/0631 ,  F02D19/061 ,  F02D19/066 ,  F02D19/081 ,  F02D19/105 ,  F02M21/0239 ,  F02M21/042 ,  Y02T10/32 ,  Y02T10/36

摘要： A method of transitioning between operating modes in a multimode engine including a diesel-only mode and a diesel pilot, gas mode includes first terminating or initiating the supply of a gaseous fuel, depending on whether the system is transitioning to or from the pilot mode, and thereafter decreasing or increasing the diesel fuel supply quantity. Liquid fuel supply quantity is preferably altered in steps rather than discretely in order to avoid exceeding the lean limit of gas lambda. The number of steps and the percentage decrease or increase in each step preferably varies based at least in part on prevailing speed and load conditions.

摘要翻译： 一种在包括仅柴油模式和柴油导向器的多模式发动机中的操作模式之间转换的方法，气体模式包括首先终止或启动气体燃料的供应，这取决于系统是否正在转向或来自先导模式， 然后减少或增加柴油燃料供应量。 液体燃料供给量优选以阶梯而不是离散地改变，以避免超过气体λ的稀薄限度。 优选地，至少部分地基于当前的速度和负载条件来改变每个步骤中的步骤数量和百分比减少或增加。

公开(公告)号：US07036482B2

公开(公告)日：2006-05-02

申请号：US10628323

申请日：2003-07-28

申请人： Niels Johannes Beck ,  Kresimir Gebert ,  Hoi-Ching Wong

发明人： Niels Johannes Beck ,  Kresimir Gebert ,  Hoi-Ching Wong

IPC分类号： F02B3/00

CPC分类号： F02B23/0651 ,  F02B1/12 ,  F02B3/06 ,  F02B23/06 ,  F02B23/0603 ,  F02B23/0621 ,  F02B23/0624 ,  F02B23/0672 ,  F02B29/0406 ,  F02B2075/1824 ,  F02D19/061 ,  F02D19/0631 ,  F02D19/0689 ,  F02D19/10 ,  F02D41/0027 ,  F02D41/0047 ,  F02D41/403 ,  F02M26/06 ,  F02M26/10 ,  F02M26/23 ,  F02M26/35 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/36 ,  Y02T10/44

摘要： A liquid primary fuel is ignited by HCCI with the assistance of the early injection of a liquid pilot fuel. Pilot fuel injection and/or ignition are preferably controlled so as to permit the injected pilot fuel to become thoroughly distributed through and mixed with the primary fuel/air charge in the combustion chamber and vaporized prior to ignition. Pilot fuel having a lower autoignition temperature will be ignited by compression ignition, followed by the ignition of the homogeneous mixture of the primary fuel and air. HCCI combustion of the primary fuel is facilitated by 1) selection of the properties of the primary and pilot fuels and 2) obtaining a homogenous mixture of primary fuel and air by injecting primary fuel into the engine's intake air stream in the form of finely atomized droplets having a mean diameter in the micron range.

摘要翻译： 借助于液体先导燃料的早期注入，HCCI点燃了液体主要燃料。 先导燃料喷射和/或点火优选地被控制以便允许喷射的引燃燃料充分地分布在燃烧室中的主要燃料/空气装料中并与其点燃之前汽化。 具有较低自燃温度的先导燃料将通过压缩点火点燃，随后点燃主要燃料和空气的均匀混合物。 主要燃料的HCCI燃烧可以通过以下方式加以实现：1）选择主燃料和先导燃料的性质; 2）通过以主要燃料和空气的精细雾化液滴的形式将主要燃料注入发动机的进气流中获得主要燃料和空气的均匀混合物 具有微米范围内的平均直径。

公开(公告)号：US07913673B2

公开(公告)日：2011-03-29

申请号：US12494889

申请日：2009-06-30

申请人： Marc Vanderslice ,  Greg Wiedemeier

发明人： Marc Vanderslice ,  Greg Wiedemeier

IPC分类号： F02M21/00

CPC分类号： F02D19/0631 ,  F02D19/061 ,  F02D19/066 ,  F02D19/081 ,  F02D19/105 ,  F02M21/0239 ,  F02M21/042 ,  Y02T10/32 ,  Y02T10/36

摘要： A method of transitioning between operating modes in a multimode engine including a diesel-only mode and a diesel pilot, gas mode includes first terminating or initiating the supply of a gaseous fuel, depending on whether the system is transitioning to or from the pilot mode, and thereafter decreasing or increasing the diesel fuel supply quantity. Liquid fuel supply quantity is preferably altered in steps rather than discretely in order to avoid exceeding the lean limit of gas lambda. The number of steps and the percentage decrease or increase in each step preferably varies based at least in part on prevailing speed and load conditions.

摘要翻译： 一种在包括仅柴油模式和柴油导向器的多模式发动机中的操作模式之间转换的方法，气体模式包括首先终止或启动气体燃料的供应，这取决于系统是否正在转向或来自先导模式， 然后减少或增加柴油燃料供应量。 液体燃料供给量优选以阶梯而不是离散地改变，以避免超过气体λ的稀薄限度。 优选地，至少部分地基于当前的速度和负载条件来改变每个步骤中的步骤数量和百分比减少或增加。

公开(公告)号：US08688351B2

公开(公告)日：2014-04-01

申请号：US13034946

申请日：2011-02-25

申请人： Robert Oalen ,  Hoi Ching Wong

发明人： Robert Oalen ,  Hoi Ching Wong

IPC分类号： F02D41/02 ,  F02D41/28 ,  F02D41/00 ,  F02D41/40

CPC分类号： F02D41/02 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/105 ,  F02D41/0025 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/266 ,  F02D41/28 ,  F02D41/401 ,  F02D2250/12 ,  Y02T10/36 ,  Y02T10/44

摘要： The timing of a controlled event is advanced or retarded in an IC engine by emulating the engine speed and position signal pattern prior to transmission of that signal pattern to an output such as a fuel injector. In a multi-controller engine in which a second controller is controlled at least in part by signals delivered by first controller, the signal preferably is emulated in the first controller prior to transmission to the second engine controller in order to allow the shifting of a timing of a controlled event without direct data transfer from the second controller to the first controller. The technique is particularly well-suited for controlling diesel fuel injection in a dual fuel or other multi-fuel engine. In this case, the first controller must be a dual fuel controller and the second controller may be a diesel controller.

摘要翻译： 通过在将该信号图案发送到诸如燃料喷射器的输出之前模拟发动机速度和位置信号模式，IC引擎中的受控事件的定时被提前或延迟。 在其中第二控制器至少部分地由第一控制器传送的信号控制的多控制器引擎中，在传输到第二发动机控制器之前，该信号优选地在第一控制器中被仿真，以允许定时 没有从第二控制器到第一控制器的直接数据传送的受控事件。 该技术特别适用于控制双燃料或其他多燃料发动机中的柴油燃料喷射。 在这种情况下，第一控制器必须是双燃料控制器，而第二控制器可以是柴油控制器。

公开(公告)号：US20120055457A1

公开(公告)日：2012-03-08

申请号：US12877487

申请日：2010-09-08

申请人： Hoi Ching Wong ,  Madhusudhan Chellappa ,  Carlos Gamez

发明人： Hoi Ching Wong ,  Madhusudhan Chellappa ,  Carlos Gamez

IPC分类号： F02D41/00 ,  G06F15/00

CPC分类号： F02D41/0027 ,  F02D19/027 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/105 ,  F02D41/1402 ,  F02D41/1454 ,  F02D41/1458 ,  F02D2041/1432 ,  Y02T10/32 ,  Y02T10/36

摘要： A computer-implemented method is used to correct deviations between a predicted gas excess air ratio and a calculated excess air ratio in a dual fuel engine or other gas fueled compression ignition engine. The method includes determining gas excess air ratio for the engine based at least in part on at least one detected current operating parameter and calculating a predicted exhaust gas oxygen concentration engine based on the predicted gas excess air ratio. A time based filtered predicted exhaust gas oxygen concentration value may then be calculated and compared to a time-based filtered measured exhaust gas oxygen concentration value. The resultant oxygen concentration deviation value may be used to generate a corrected predicted gas excess air ratio.

摘要翻译： 使用计算机实现的方法来校正双燃料发动机或其它气体燃料压缩点火发动机中预测的气体过量空气比和计算的过量空气比之间的偏差。 该方法包括至少部分地基于至少一个检测到的当前操作参数来确定发动机的气体过量空气比，并且基于预测的气体过量空气比计算预测排气氧浓度发动机。 然后可以计算基于时间的过滤的预测废气氧浓度值，并将其与基于时间的过滤的测量废气氧浓度值进行比较。 所得到的氧浓度偏差值可用于产生经校正的预测气体过量空气比。

公开(公告)号：US07270089B2

公开(公告)日：2007-09-18

申请号：US10552894

申请日：2004-06-10

申请人： Hoi Ching Wong

发明人： Hoi Ching Wong

IPC分类号： F02D19/00 ,  F02B7/00 ,  F02M21/00

CPC分类号： F02D19/061 ,  F02D19/105 ,  F02M26/05 ,  F02M26/23 ,  F02M26/35 ,  Y02T10/36

摘要： At least one engine operating parameter other than total fuel energy content is taken into account when transitioning between operating modes in a dual fuel or other multimode engine (20) in order to maintain a smooth transition between modes. The parameter preferably comprises at least one of primary fuel excess air ratio (lambda) and ignition timing and preferably is controlled in addition to total fuel energy content control. Lambda control is especially beneficial because it permits the control system to compensate for the engine's inability to substantially alter the instantaneous air mass in the combustion chamber during the transition period. For instance, during a transition from pilot ignited gaseous fuel mode to diesel mode, the controlled parameter preferably comprises diesel lambda, and the controlling step comprises setting diesel lambda at a relatively high value at the beginning of the transition period and thereafter reducing diesel lambda during the transition period.

摘要翻译： 在双燃料或其他多模式发动机（20）中的工作模式之间转换时，考虑到除总燃料能量含量之外的至少一个发动机操作参数，以便保持模式之间的平滑过渡。 该参数优选地包括初级燃料过量空气比（λ）和点火正时中的至少一个，并且优选地除了总燃料能量含量控制之外被控制。 Lambda控制是特别有益的，因为它允许控制系统补偿发动机不能在过渡期间基本上改变燃烧室中的瞬时空气质量。 例如，在从先导点燃气态燃料模式到柴油模式的过渡期间，受控参数优选地包括柴油λ，并且控制步骤包括在过渡期开始时将柴油λ设定在相对高的值，然后在过渡期开始时减少柴油λ 过渡期。