System and method for reducing particulate matter emission in diesel exhaust gas
    1.
    发明授权
    System and method for reducing particulate matter emission in diesel exhaust gas 有权
    减少柴油机废气中颗粒物排放的系统和方法

    公开(公告)号:US08240138B2

    公开(公告)日:2012-08-14

    申请号:US11838299

    申请日:2007-08-14

    摘要: An aftertreatment system is provided for reducing particulate matter emission and chemical emissions in diesel engine exhaust gas. The system includes a diesel particulate filter including a plurality of diesel particulate filter units configured to engage respective cross-sectional regions of the diesel engine exhaust gas including particulate matter. Each diesel particulate filter unit includes a plurality of channels aligned in a flow direction of the diesel engine exhaust gas. The channels are selectively configured with a distinct cross-sectional area density. Additionally, each diesel particulate filter unit includes a plurality of walls separating adjacent channels of the plurality of channels, where the walls have a respective thickness. A plurality of pores are configured to vacate a distinct ratio of the area of the walls.

    摘要翻译: 提供了一种后处理系统,用于减少柴油机废气中的颗粒物排放和化学物质排放。 该系统包括柴油微粒过滤器,其包括多个柴油微粒过滤器单元,其构造成与包括颗粒物质在内的柴油发动机废气的相应横截面区域接合。 每个柴油机微粒过滤器单元包括在柴油发动机废气的流动方向上排列的多个通道。 通道被选择性地配置有不同的横截面积密度。 此外,每个柴油机微粒过滤器单元包括分隔多个通道的相邻通道的多个壁,其中壁具有相应的厚度。 多个孔构造成腾出壁的面积的不同比例。

    METHODS AND SYSTEMS FOR AN ENGINE
    6.
    发明申请
    METHODS AND SYSTEMS FOR AN ENGINE 有权
    发动机的方法和系统

    公开(公告)号:US20130247562A1

    公开(公告)日:2013-09-26

    申请号:US13430215

    申请日:2012-03-26

    IPC分类号: F02B37/18 F02D23/00

    摘要: Various methods and systems are provided for an engine system for a vehicle. In one example, the engine system includes a turbocharger including a turbine, the turbocharger configured to be driven via exhaust gas from an engine during a turbocharger mode and via the exhaust gas from the engine and mechanical output from the engine during a supercharger mode. The engine system further includes a bypass control element to decrease an amount of energy extracted from exhaust flow through the turbine in a regeneration mode of operation and to increase an amount of energy extracted from exhaust flow through the turbine during a non-regeneration mode of operation, and an aftertreatment system disposed downstream of the turbocharger and including a particulate filter.

    摘要翻译: 为车辆的发动机系统提供了各种方法和系统。 在一个示例中,发动机系统包括涡轮增压器,该涡轮增压器包括涡轮机,该涡轮增压器构造成在涡轮增压器模式期间通过来自发动机的排气和来自发动机的排气以及在增压器模式期间来自发动机的机械输出而被驱动。 发动机系统还包括旁路控制元件,以在再生操作模式中减少从通过涡轮机的排气流中提取的能量的量,并且在非再生操作模式期间增加从通过涡轮机的排气流中提取的能量的量 以及设置在涡轮增压器下游并且包括微粒过滤器的后处理系统。

    System, method, and computer software code for improved fuel efficiency emission output, and mission performance of a powered system
    7.
    发明授权
    System, method, and computer software code for improved fuel efficiency emission output, and mission performance of a powered system 有权
    用于提高燃油效率排放输出的系统,方法和计算机软件代码以及动力系统的任务性能

    公开(公告)号:US08494696B2

    公开(公告)日:2013-07-23

    申请号:US13529783

    申请日:2012-06-21

    IPC分类号: G05D1/00

    CPC分类号: B61L3/006

    摘要: A method is provided including determining a first power level required from a diesel powered system. The first power level corresponds to a first proportion of a maximum power. The method also includes determining an emission output for a mission based on the first power level. The method further includes determining a second power level corresponding to a second proportion of the maximum power, wherein alternate use of the second power level and at least one of the first power level or a third power level results in a lower emission output for the mission, with the overall resulting power being proximate the minimum power required. The method also includes automatically controlling operation of the diesel powered system by using the second power level alternately with at least one of the first power level or the third power level.

    摘要翻译: 提供了一种方法,包括确定从柴油动力系统所需的第一功率水平。 第一功率电平对应于最大功率的第一比例。 该方法还包括基于第一功率电平确定任务的发射输出。 该方法还包括确定对应于最大功率的第二比例的第二功率电平,其中第二功率电平和第一功率电平或第三功率电平中的至少一个的替代使用导致用于该任务的较低发射输出 总体结果功率接近所需的最小功率。 该方法还包括通过与第一功率电平或第三功率电平中的至少一个交替地使用第二功率电平来自动控制柴油发动系统的操作。

    System and method for operating a turbo-charged engine

    公开(公告)号:US20070044752A1

    公开(公告)日:2007-03-01

    申请号:US11211981

    申请日:2005-08-25

    IPC分类号: F02B3/00 F02M43/00 G06F7/00

    CPC分类号: F02D41/403 Y02T10/44

    摘要: In certain embodiments, there is provided a method of operating a turbocharged system including injecting a first quantity of fuel into an engine cylinder at a first predetermined time during a second half of a compression stroke before a piston of the engine cylinder reaches top dead center of the compression stroke. The method further includes injecting a second quantity of fuel into the engine cylinder at a second predetermined time after the first predetermined time when the piston is advanced by a predetermined advance value before the piston reaches the top dead center of the compression stroke.