Exhaust gas purification system for internal combustion engine
    11.
    发明授权
    Exhaust gas purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US08418446B2

    公开(公告)日:2013-04-16

    申请号:US12740250

    申请日:2008-11-11

    摘要: Disclosed is a technology that enables better reduction of NOx stored in an NOx catalyst in an exhaust gas purification system for an internal combustion engine. When NOx stored in an NOx catalyst is to be reduced, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to a target air-fuel ratio by decreasing the air-fuel ratio of the exhaust gas discharged from the internal combustion engine. In doing so, if the temperature of the NOx catalyst is not lower than a specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while bringing the combustion state into low temperature combustion. On the other hand, if the temperature of the NOx catalyst is lower than the specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while decreasing the quantity of EGR gas in a cylinder so that the amount of generated smoke is kept within an allowable range.

    摘要翻译: 公开了一种能够更好地还原内燃机的排气净化系统中的NOx催化剂中存储的NOx的技术。 当减少NOx吸收剂中存储的NOx时,通过降低从内燃部排出的废气的空燃比,将NOx催化剂周围的环境气体的空燃比降低到目标空燃比 发动机。 在这样做时,如果NOx催化剂的温度不低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时使燃烧状态进入低温燃烧 。 另一方面,如果NOx催化剂的温度低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时减少EGR气体的量 使得产生的烟雾量保持在容许范围内。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    15.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20100229536A1

    公开(公告)日:2010-09-16

    申请号:US12740250

    申请日:2008-11-11

    IPC分类号: F02M25/06 F01N3/10

    摘要: Disclosed is a technology that enables better reduction of NOx stored in an NOx catalyst in an exhaust gas purification system for an internal combustion engine. When NOx stored in an NOx catalyst is to be reduced, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to a target air-fuel ratio by decreasing the air-fuel ratio of the exhaust gas discharged from the internal combustion engine. In doing so, if the temperature of the NOx catalyst is not lower than a specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while bringing the combustion state into low temperature combustion. On the other hand, if the temperature of the NOx catalyst is lower than the specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while decreasing the quantity of EGR gas in a cylinder so that the amount of generated smoke is kept within an allowable range.

    摘要翻译: 公开了一种能够更好地还原内燃机的排气净化系统中的NOx催化剂中存储的NOx的技术。 当减少NOx吸收剂中存储的NOx时,通过降低从内燃部排出的废气的空燃比,将NOx催化剂周围的环境气体的空燃比降低到目标空燃比 发动机。 在这样做时,如果NOx催化剂的温度不低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时使燃烧状态进入低温燃烧 。 另一方面,如果NOx催化剂的温度低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时减少EGR气体的量 使得产生的烟雾量保持在容许范围内。

    Exhaust Gas Purification Apparatus Regeneration System of Internal Combustion Engine
    16.
    发明申请
    Exhaust Gas Purification Apparatus Regeneration System of Internal Combustion Engine 有权
    内燃机废气净化装置再生系统

    公开(公告)号:US20080307773A1

    公开(公告)日:2008-12-18

    申请号:US11794483

    申请日:2006-01-16

    申请人: Tomoyuki Kogo

    发明人: Tomoyuki Kogo

    IPC分类号: F01N9/00

    摘要: There is provided a technology that enables, in an exhaust gas purification apparatus regeneration system of an internal combustion engine, to prevent the remaining fuel quantity from decreasing to an unduly small quantity during execution of regeneration control for regenerating the exhaust gas purification ability of the exhaust gas purification apparatus by supplying fuel to the exhaust gas purification apparatus. The system of the invention has command device capable of being operated by a driver for sending a regeneration execution command to cause regeneration control execution device to execute the regeneration control and notification device for notifying the driver to prompt the driver to send the regeneration execution command to the regeneration control execution device through the command device. Time of notification by said notification device is controlled so that it is prevented that the regeneration execution command is sent to said regeneration control execution device by said command device while notification is given to the driver by said notification device and the quantity of remaining fuel becomes equal to or lower than a specified remaining quantity during execution of the regeneration control executed in response to the regeneration execution command.

    摘要翻译: 提供了一种在内燃机的废气净化装置再生系统中能够在执行用于再生废气的排气净化能力的再生控制的过程中使剩余燃料量减少到不适当的技术 通过向废气净化装置供给燃料的气体净化装置。 本发明的系统具有能够由驾驶员操作的命令装置,用于发送再生执行命令,以使再生控制执行装置执行再生控制和通知装置,用于通知驾驶员提示驾驶员将再生执行命令发送到 再生控制执行装置通过指令装置。 控制由所述通知装置通知的时间,从而防止由所述指令装置将所述再生执行命令发送到所述再生控制执行装置,同时所述通知装置向驾驶员发出通知,剩余燃料量变为相等 在执行根据再生执行命令而执行的再生控制的执行期间,达到或低于指定的剩余量。

    Control apparatus and control method for internal combustion engine
    18.
    发明授权
    Control apparatus and control method for internal combustion engine 有权
    内燃机控制装置及控制方法

    公开(公告)号:US08315777B2

    公开(公告)日:2012-11-20

    申请号:US12668743

    申请日:2008-08-06

    IPC分类号: B60T7/12

    摘要: A control apparatus for an internal combustion engine (10) includes intake valve control means (50). The internal combustion engine (10) includes a variable intake valve operating mechanism (66) that changes a valve opening characteristic of an intake valve (64), and rich combustion is performed in the internal combustion engine (10) to control an exhaust gas purification catalyst (24) disposed in an exhaust passage (18). The intake valve control means (50) controls the valve opening characteristic of the intake valve (64) to increase a flow rate of intake air in an early stage of an intake stroke when the rich combustion is performed, as compared to when non-rich combustion is performed.

    摘要翻译: 一种用于内燃机(10)的控制装置,包括进气阀控制装置(50)。 内燃机(10)包括改变进气门(64)的开阀特性的可变进气门操作机构(66),并且在内燃机(10)中进行丰富燃烧以控制排气净化 设置在排气通道(18)中的催化剂(24)。 当进行浓燃烧时,进气阀控制装置(50)控制进气门(64)的开阀特性,以增加进气冲程早期进气的流量,与不富 进行燃烧。