公开(公告)号：US06829890B2

公开(公告)日：2004-12-14

申请号：US10217729

申请日：2002-08-13

申请人： Xinqun Gui ,  Steven P. Gravante ,  Shouxian Ren ,  Pranab K. Das

发明人： Xinqun Gui ,  Steven P. Gravante ,  Shouxian Ren ,  Pranab K. Das

IPC分类号： F01N300

CPC分类号： F01N3/023 ,  F01N3/035 ,  F01N2430/08 ,  F01N2570/10 ,  F01N2570/14 ,  F02B3/06 ,  F02B29/0406 ,  F02B37/00 ,  F02D41/0007 ,  F02D41/029 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/144

摘要： An engine control system (22) of a diesel engine (20) that powers a motor vehicle processes data in execution of a strategy (FIG. 4) to provide control of both timing and duration of forced regeneration of a diesel particulate filter (42). The overall strategy is a hybrid of model-based and closed-loop control strategies. Redundant elements of the strategy (FIG. 6) determine when forced regeneration is called for. Forced regeneration is initiated by retarding the timing of the start of main fuel injection (100). Fueling is then adjusted (98) both to enhance catalytic action and to make the process transparent to a driver of the vehicle.

摘要翻译： 柴油发动机（20）的发动机控制系统（22），用于对执行策略（图4）进行处理数据的机动车辆进行动力以提供对柴油机微粒过滤器（42）的强制再生的时间和持续时间的控制， 。 总体战略是基于模型和闭环控制策略的混合体。 战略的冗余元素（图6）确定何时需要强制再生。 通过延迟主燃料喷射开始的时间（100）来启动强制再生。 然后调节加油（98）以增强催化作用并使该过程对车辆驾驶员透明。

公开(公告)号：US06732702B2

公开(公告)日：2004-05-11

申请号：US10057545

申请日：2002-01-23

申请人： Zhengbai Liu ,  Xinqun Gui

发明人： Zhengbai Liu ,  Xinqun Gui

IPC分类号： F02F326

CPC分类号： F02B23/0672 ,  F02B3/06 ,  Y02T10/125

摘要： A combustion chamber assembly for use in a diesel engine includes a combustion chamber defined in a crown of a piston, the combustion chamber having a center portion, the center portion being defined at least in part by a portion of a convex sphere, the sphere having a radius and an origin, the origin of the radius lying on a piston central axis and the combustion chamber further having an outwardly radially disposed bottom margin, the bottom margin being defined in part by a portion of an annulus, the annulus having a radius and an origin. The combustion chamber further has a plurality of curved surfaces having smooth transitions between adjacent smooth surfaces, the smooth surfaces including the spherical center portion and the annular bottom margin. A piston incorporating the aforementioned combustion chamber and a method of forming the combustion chamber are further included.

摘要翻译： 用于柴油发动机的燃烧室组件包括限定在活塞顶部的燃烧室，所述燃烧室具有中心部分，所述中心部分至少部分地由凸球的一部分限定，所述球具有 半径和原点，所述半径的原点位于活塞中心轴线上，并且所述燃烧室还具有向外径向设置的底部边缘，所述底部边缘部分地由环的一部分限定，所述环具有半径和 一个起源 燃烧室还具有在相邻的光滑表面之间具有平滑过渡的多个弯曲表面，光滑表面包括球形中心部分和环形底部边缘。 还包括一个结合上述燃烧室的活塞和形成燃烧室的方法。