公开(公告)号：US5967113A

公开(公告)日：1999-10-19

申请号：US987051

申请日：1997-12-09

申请人： Katsunori Kaneko ,  Kazunari Kuwabara ,  Toshio Syudo ,  Hiromitsu Ando

发明人： Katsunori Kaneko ,  Kazunari Kuwabara ,  Toshio Syudo ,  Hiromitsu Ando

IPC分类号： F02P5/15 ,  F01N3/20 ,  F01N3/24 ,  F01N3/36 ,  F02B17/00 ,  F02B23/10 ,  F02B75/12 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/30 ,  F02D41/34 ,  F02D41/40 ,  F02D43/00

CPC分类号： F02D41/024 ,  F02B17/005 ,  F02D41/045 ,  F02D41/1446 ,  F02D41/3023 ,  F02D41/402 ,  F01N2430/06 ,  F02B2075/125 ,  F02B2275/18 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/26 ,  Y02T10/44

摘要： An exhaust-gas temperature raising system, installed in an in-cylinder injection type internal combustion engine adapted to spark-ignite fuel injected from a fuel injection valve directly into a combustion chamber, includes an electronic control unit which controls the fuel injection valve to inject the fuel, at a delayed fuel-injection timing in a compression stroke of the engine, in such an amount as to form an overrich air-fuel mixture locally around an ignition plug together with air in the combustion chamber, when the engine is in an operating condition in which an exhaust-gas temperature is required to rise. The electronic control unit controls an engine control parameter so that the fuel injected at the delayed fuel-injection timing and spark-ignited is insufficiently combusted around the ignition plug, and is then mixed with extra oxygen in the combustion chamber so as to be combusted while being affected by a gas flow in the combustion chamber, whereby the exhaust-gas temperature is effectively raised while suppressing the fuel consumption rate to a minimum.

摘要翻译： 安装在缸内喷射型内燃机中的排气升温系统，其适于将从燃料喷射阀喷射的燃料直接燃烧到燃烧室中，包括控制燃料喷射阀喷射的电子控制单元 燃料在发动机的压缩冲程中以延迟的​​燃料喷射正时以这样的量形成，以便当发动机处于燃烧室内时，与燃烧室内的空气一起在火花塞周围局部地形成过多的空气 - 燃料混合物 需要排气温度升高的运行状态。 电子控制单元控制发动机控制参数，使得在延迟燃料喷射正时和火花点火时喷射的燃料在火花塞周围不充分燃烧，然后与燃烧室中的额外氧气混合以便燃烧，同时 受到燃烧室中的气体流动的影响，从而在将燃料消耗率抑制在最小的同时有效地提高废气温度。

公开(公告)号：US5975046A

公开(公告)日：1999-11-02

申请号：US956108

申请日：1997-10-24

申请人： Katsunori Kaneko ,  Kazunari Kuwabara ,  Hiromitsu Ando ,  Toshio Shudo

发明人： Katsunori Kaneko ,  Kazunari Kuwabara ,  Hiromitsu Ando ,  Toshio Shudo

IPC分类号： F01N3/20 ,  F01N3/24 ,  F01N3/36 ,  F01N13/02 ,  F02B17/00 ,  F02B23/10 ,  F02B75/12 ,  F02D37/02 ,  F02D41/02 ,  F02D41/06 ,  F02D41/14 ,  F02D41/30 ,  F02D41/34 ,  F02D41/40 ,  F02D43/00 ,  F02D45/00 ,  F02P5/15 ,  F02P5/153

CPC分类号： F02P5/153 ,  F01N13/0097 ,  F02B17/005 ,  F02D37/02 ,  F02D41/024 ,  F02D41/025 ,  F02D41/1446 ,  F02D41/405 ,  F02P5/1506 ,  F01N2570/14 ,  F01N3/2006 ,  F02B2023/107 ,  F02B2075/125 ,  F02B2275/18 ,  F02B23/104 ,  F02D2041/389 ,  F02D2200/0802 ,  F02D41/3029 ,  F02D41/402 ,  Y02T10/123 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/46

摘要： An exhaust-gas temperature raising system for a spark-ignition, in-cylinder injection type internal combustion engine includes an electronic control unit. In case that the engine is in an operating condition where the exhaust-gas temperature is required to rise, on an occasion of a main-fuel injection in a compression stroke, the electronic control unit controls engine control parameters such as ignition timing and air-fuel ratio to cause a cool-flame-reaction product, which remains in a combustion chamber in a middle stage or a subsequent stage of an expansion stroke, to have a concentration close to an inflammable concentration limit, and then causes an additional fuel to be injected into the combustion chamber from the fuel injection valve in the middle stage or the subsequent stage of the expansion stroke. The cool-flame reaction of the additional fuel quickly occurs, and the concentration of the cool-flame-reaction product exceeds the inflammable concentration limit, so that the additional fuel is enflamed by self-inflammation. The energy produced by the combustion of the additional fuel is effectively utilized for raising in the exhaust-gas temperature.

摘要翻译： 用于火花点火式缸内喷射型内燃机的废气升温系统包括电子控制单元。 在发动机处于需要排气温度的运行状态的情况下，在压缩冲程中的主燃料喷射的情况下，电子控制单元控制发动机控制参数，例如点火正时和空气 - 燃料比使得残留在中间阶段或后续的膨胀冲程阶段的燃烧室中的冷焰反应产物具有接近易燃浓度极限的浓度，然后使另外的燃料成为 在中间阶段或后续阶段的膨胀冲程中，从燃料喷射阀注入燃烧室。 快速发生附加燃料的冷焰反应，并且冷焰反应产物的浓度超过可燃浓度极限，使得额外的燃料通过自身发炎而燃烧。 通过附加燃料的燃烧产生的能量有效地用于提高废气温度。

公开(公告)号：US06622690B2

公开(公告)日：2003-09-23

申请号：US09875900

申请日：2001-06-08

申请人： Hiromitsu Ando ,  Jun Takemura ,  Kazunari Kuwabara ,  Shigeo Yamamoto

发明人： Hiromitsu Ando ,  Jun Takemura ,  Kazunari Kuwabara ,  Shigeo Yamamoto

IPC分类号： F02B1700

CPC分类号： F02D41/3064 ,  F02B1/04 ,  F02B1/12 ,  F02B3/12 ,  F02B69/06 ,  F02B2075/027 ,  F02B2075/125 ,  F02D41/3058 ,  F02D41/38 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/44

摘要： A direct injection type internal combustion engine has an intake and exhaust mechanism for intaking and exhausting air for a predetermined period of time between a second half of a second expansion stroke and a first half of a first compression stroke following the second expansion stroke so that the first compression stroke, a first expansion stroke, a second compression stroke, and the second expansion stroke can be repeated sequentially along with rotation of a crank shaft; and a control device for controlling fuel injection. The control device injects first fuel during the first compression stroke and injects second fuel during the first expansion stroke or the second compression stroke. Therefore, the first fuel executes the first combustion process, and the second fuel is then injected into burnt gases generated in the first combustion process to enable a second combustion process following the first combustion process.