EGR Rate Control For Internal Combustion Engine With Dual Exhaust-Ported Cylinders
    3.
    发明申请
    EGR Rate Control For Internal Combustion Engine With Dual Exhaust-Ported Cylinders 有权
    具有双排气口气缸的内燃机的EGR率控制

    公开(公告)号:US20140190458A1

    公开(公告)日:2014-07-10

    申请号:US13736271

    申请日:2013-01-08

    IPC分类号: F02M25/07 F02B47/08

    摘要: A method of using exhaust gas recirculation (EGR) in an internal combustion engine. At least two of the cylinders are “dual exhaust-ported cylinders” having two exhaust ports. For each of these cylinders, one of the exhaust ports is connected to the EGR loop and the other of the exhaust ports is connected to the main exhaust line. These cylinders are controlled such that one exhaust port is open and the other exhaust port is closed during each engine cycle, and are operated, on a cycle-by-cycle basis so that all of the exhaust produced by a cylinder may be delivered to the EGR loop at any cycle. The number of cylinders operating as EGR cylinders per engine cycle is in response to a desired EGR rate.

    摘要翻译: 一种在内燃机中使用废气再循环(EGR)的方法。 至少两个气缸是具有两个排气口的“双排气筒”。 对于这些气缸中的每一个,排气口中的一个连接到EGR回路,另一个排气口连接到主排气管。 这些气缸被控制成使得一个排气口打开,另一个排气口在每个发动机循环期间关闭,并且逐个循环地操作,使得由气缸产生的所有废气可以被输送到 EGR循环在任何循环。 每个发动机循环作为EGR气缸工作的气缸数是响应于期望的EGR率。

    Dedicated EGR control strategy for improved EGR distribution and engine performance
    4.
    发明授权
    Dedicated EGR control strategy for improved EGR distribution and engine performance 有权
    专用EGR控制策略,用于改善EGR分配和发动机性能

    公开(公告)号:US08944034B2

    公开(公告)日:2015-02-03

    申请号:US13025901

    申请日:2011-02-11

    IPC分类号: F02B47/08 F02M25/07 F02B27/02

    摘要: The present disclosure relates to methods, apparatuses and systems to manage exhaust gas expelled from cylinders of an internal combustion engine. An exemplary system may comprise at least one cylinder of the engine configured to operate as a dedicated exhaust gas recirculation (EGR) cylinder, and wherein substantially all exhaust gas expelled from the dedicated EGR cylinder is recirculated to an intake system of the engine. In one embodiment, the system may include a flow restrictor configured and arranged to restrict a flow of the recirculated exhaust gas to the dedicated EGR cylinder without restricting a flow of the recirculated exhaust gas to the remaining cylinders of the engine. In another embodiment, exhaust gas may be expelled from the dedicated EGR cylinder in pulsations, and the intake system may be configured to reduce an amplitude of the pulsations of the exhaust gas expelled from the dedicated EGR cylinder.

    摘要翻译: 本公开涉及用于管理从内燃机的气缸排出的废气的方法,装置和系统。 示例性系统可以包括被配置为作为专用废气再循环(EGR)气缸操作的发动机的至少一个气缸,并且其中从专用EGR气缸排出的基本上所有排气再循环到发动机的进气系统。 在一个实施例中,系统可以包括限流器,其被配置和布置成将再循环废气的流量限制到专用EGR气缸,而不限制再循环废气流向发动机的剩余气缸。 在另一个实施例中,废气可以脉动地从专用EGR气缸排出,并且进气系统可以被配置为减小从专用EGR气缸排出的废气的脉动的幅度。

    Ignition and Knock Tolerance in Internal Combustion Engine by Controlling EGR Composition
    5.
    发明申请
    Ignition and Knock Tolerance in Internal Combustion Engine by Controlling EGR Composition 有权
    通过控制EGR组分对内燃机的点火和耐压

    公开(公告)号:US20140196702A1

    公开(公告)日:2014-07-17

    申请号:US13742627

    申请日:2013-01-16

    IPC分类号: F02B47/08

    摘要: A method for improving ignition of a spark ignited internal combustion engine by controlling the composition of recirculated exhaust gas. It is assumed that the engine has a spark ignition system and an exhaust gas recirculation (EGR) loop such that at least one of the combustion cylinders is an EGR cylinder that generates an EGR stream carried by the EGR loop. Thus, the combustion charge is a mixture of air, fuel and recirculated exhaust. A first step is receiving combustibility data representing the current ignitability of the charge. It is then determined whether the energy of the ignition system is sufficient to ignite the charge. If not, the amount of hydrogen in the EGR stream is increased, which increases the ignitability of the charge.

    摘要翻译: 一种通过控制再循环废气的组成来改善火花点火内燃机点火的方法。 假设发动机具有火花点火系统和排气再循环(EGR)回路,使得至少一个燃烧气缸是产生由EGR回路承载的EGR流的EGR气缸。 因此,燃烧装料是空气,燃料和再循环排气的混合物。 第一步是接收表示电荷的当前可燃性的可燃性数据。 然后确定点火系统的能量是否足以点燃电荷。 如果不是,则EGR流中的氢的量增加,这增加了电荷的可点燃性。

    EGR Control in Engine Equipped With Cylinders Having Dual Exhaust Valves
    6.
    发明申请
    EGR Control in Engine Equipped With Cylinders Having Dual Exhaust Valves 有权
    具有双排气阀的发动机的EGR控制

    公开(公告)号:US20140069082A1

    公开(公告)日:2014-03-13

    申请号:US13614966

    申请日:2012-09-13

    IPC分类号: F02M25/07 F01N3/10 F02B47/08

    摘要: A method and system for controlling recirculated exhaust gas composition and quantity provided to an internal combustion engine, which has one or more separately controllable combustion cylinders, a main exhaust line and an exhaust gas recirculation (EGR) loop. A first exhaust valve is connected to the main exhaust line, and a second exhaust valve is connected to the EGR loop. The operation of the exhaust valves is controlled such that exhaust does not flow through both exhaust valves at the same time. Control of the exhaust valves is coordinated with the main fueling event used to control the exhaust composition exiting each valve for every cylinder on every cycle. During each engine cycle, a post-combustion fuel injection event is also used to add fuel to the exhaust in-cylinder, which flows only through the second (EGR) exhaust valve.

    摘要翻译: 用于控制提供给具有一个或多个可单独控制的燃烧气缸,主排气管线和排气再循环(EGR)循环的内燃机的再循环废气组成和量的方法和系统。 第一排气阀连接到主排气管,并且第二排气阀连接到EGR回路。 控制排气阀的操作使得排气不会同时流过两个排气门。 排气阀的控制与用于控制每个循环中每个气缸排出组合物的排气组成的主要燃料事件协调。 在每个发动机循环期间,还使用后燃料燃料喷射事件来向仅流过第二(EGR)排气阀的缸内排气添加燃料。

    EGR distributor apparatus for dedicated EGR configuration
    7.
    发明授权
    EGR distributor apparatus for dedicated EGR configuration 有权
    用于专用EGR配置的EGR分配器装置

    公开(公告)号:US08561599B2

    公开(公告)日:2013-10-22

    申请号:US13025912

    申请日:2011-02-11

    IPC分类号: F02M25/07

    摘要: The present disclosure relates to methods, apparatuses and systems to manage exhaust gas expelled from an internal combustion engine. More particularly, the present disclosure provides an exhaust gas recirculation apparatus to distribute recirculated exhaust gas in an air stream to be introduced to an internal combustion engine, with the apparatus comprising an intake passage defined by a wall structure, the wall structure including a plurality of apertures therein configured to distribute recirculated exhaust gas into the intake passage.

    摘要翻译: 本公开涉及用于管理从内燃机排出的废气的方法,装置和系统。 更具体地,本公开提供了一种排气再循环装置,以将再循环废气分配到待引入内燃机的空气流中,该装置包括由壁结构限定的进气通道,该壁结构包括多个 其中构造成将再循环废气分配到进气通道中的孔。