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    • 1. 发明专利
    • Fuel reforming device for engine
    • 发动机燃油改造装置
    • JP2013029088A
    • 2013-02-07
    • JP2011167125
    • 2011-07-29
    • Nissan Motor Co Ltd日産自動車株式会社
    • ASHIDA KOICHITERACHI ATSUSHISHINJO TAKASHIMAEDA YOJI
    • F02M27/02B01D53/86F02D19/08F02M25/07
    • Y02T10/121Y02T10/126
    • PROBLEM TO BE SOLVED: To provide a device in which degradation of a reforming catalyst can be suppressed.SOLUTION: A fuel reforming device includes: a first port (3A) opened to a combustion chamber (2) to introduce new air; an intake valve (5A) for opening and closing the first port (3A); a first fuel supply device (31) capable of supplying fuel to the first port (3A); a second port (3B) opened to the combustion chamber (2) to introduce gas containing moisture; the reforming catalyst (7) disposed in the second port (3B) to reform fuel to hydrogen; a second fuel supply device (32) capable of supplying fuel to the reforming catalyst (7); and a reforming valve (5B) for opening and closing the second port (3B). In the fuel reformer, the reforming valve (5B) is opened, during an expansion stroke or an exhaust stroke, to cause combustion gas to blow back to the second port (3B) to heat the reforming catalyst (7), and fuel is supplied from the second fuel supply device (32) to the heated reforming catalyst (7).
    • 解决的问题:提供可以抑制重整催化剂的降解的装置。 解决方案:燃料重整装置包括:向燃烧室(2)开口以引入新空气的第一端口(3A) 用于打开和关闭第一端口(3A)的进气门(5A); 能够向第一端口(3A)供给燃料的第一燃料供给装置(31); 向燃烧室(2)开口以引入含有水分的气体的第二端口(3B) 所述重整催化剂(7)设置在所述第二端口(3B)中以将燃料转化为氢; 能够向所述重整催化剂(7)供给燃料的第二燃料供给装置(32)。 和用于打开和关闭第二端口(3B)的重整阀(5B)。 在燃料重整器中,在膨胀冲程或排气冲程期间,重整阀(5B)打开以使燃烧气体回吹到第二端口(3B)以加热重整催化剂(7),并且供应燃料 从第二燃料供给装置(32)到加热的重整催化剂(7)。 版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Control device and control method for engine
    • 发动机控制装置及控制方法
    • JP2014125980A
    • 2014-07-07
    • JP2012283622
    • 2012-12-26
    • Nissan Motor Co Ltd日産自動車株式会社
    • MAEDA YOJISHINJO TAKASHIASHIDA KOICHI
    • F02D21/08F02D19/02F02D43/00F02D45/00F02M25/07F02M27/02F02P3/045
    • Y02T10/121Y02T10/32
    • PROBLEM TO BE SOLVED: To provide a control device that enables driving at a high EGR rate without deteriorating a combustion state to improve fuel economy, even in a case where there is deviation in an amount and timing in which EGR gas and a combustion activation component flow into a combustion chamber.SOLUTION: A control device includes: an EGR passage 8 for reflowing part of exhaust to an intake pipe 2; an EGR valve 9 capable of adjusting an amount of EGR gas flowing in the EGR passage 8; EGR gas amount control means 21 for controlling an amount of EGR pas flowing in the EGR valve 9 in an EGR region; hydrogen supply means 31 for supplying hydrogen to a combustion chamber in the EGR region; combustion start timing/ignition energy control means 21 for controlling combustion start timing or ignition energy in the combustion chamber according to an amount of EGR gas supplied to the combustion chamber and an amount of hydrogen supplied to the combustion chamber.
    • 要解决的问题:为了提供一种能够以高EGR率驱动而不劣化燃烧状态以提高燃料经济性的控制装置,即使在EGR气体和燃烧活化组分的量和时间有偏差的情况下 流入燃烧室。解决方案:控制装置包括:EGR通道8,用于将排气的一部分回流到进气管2; EGR阀9,其能够调节在EGR通路8中流动的EGR气体的量; EGR气体量控制装置21,用于控制在EGR区域中在EGR阀9中流动的EGR气体的量; 用于向EGR区域中的燃烧室供给氢的氢供给装置31; 燃烧开始正时/点火能量控制装置21,用于根据供应到燃烧室的EGR气体的量和向燃烧室供应的氢气量来控制燃烧室中的燃烧开始正时或点燃能量。
    • 5. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2014101771A
    • 2014-06-05
    • JP2012252845
    • 2012-11-19
    • Nissan Motor Co Ltd日産自動車株式会社
    • ASHIDA KOICHIHOTTA ISAMU
    • F02M27/02C01B3/38F02M25/07
    • Y02T10/121Y02T10/126
    • PROBLEM TO BE SOLVED: To regenerate fuel reforming performance of a fuel reforming catalyst interposed in an EGR passage.SOLUTION: When regeneration processing of a fuel reforming catalyst 16 is determined to be necessary (S1), a first regeneration mode (S6) is executed for supplying air to the fuel reforming catalyst by opening an EGR control valve when the fuel reforming catalyst is at a predetermined temperature or more (S2), and during a predetermined fuel cut operation time (S3) for stopping fuel supply to an internal combustion engine 1. Then, when the regeneration of the fuel reforming catalyst is not sufficient in the first regeneration mode (S8), regeneration of the fuel reforming catalyst 16 by a second regeneration mode is executed (S14). In the second regeneration mode, air is introduced by opening the EGR control valve during the fuel cut operation, and fuel for reform is injected from a fuel for reform injection valve 14.
    • 要解决的问题:为了再生燃料重整催化剂的燃料重整性能而重新设置在EGR通路中。解决方案:当确定燃料重整催化剂16的再生处理是必要的(S1)时,执行第一再生模式(S6) 用于当燃料重整催化剂处于预定温度或更高(S2)时打开EGR控制阀,并且在用于停止燃料供应到内燃机的预定燃料切断操作时间(S3)期间向燃料重整催化剂供应空气 然后,当在第一再生模式中燃料重整催化剂的再生不充分时(S8),执行第二再生模式的燃料重整催化剂16的再生(S14)。 在第二再生模式中,在燃料切断动作期间,通过打开EGR控制阀来引入空气,从改质喷射阀14的燃料喷射改质燃料。
    • 6. 发明专利
    • Reformed gas recirculation device
    • 改造气体回收装置
    • JP2013007336A
    • 2013-01-10
    • JP2011140856
    • 2011-06-24
    • Nissan Motor Co Ltd日産自動車株式会社
    • TERACHI ATSUSHIASHIDA KOICHI
    • F02M27/02B01D53/94F01N3/20F01N3/24F02D13/02F02D19/08F02D21/08F02M25/07
    • Y02T10/121Y02T10/126
    • PROBLEM TO BE SOLVED: To provide a reformed gas recirculation device capable of properly controlling a temperature of a reforming catalyst and stably supplying reformed gas.SOLUTION: In a reformed gas recirculation device 100 recirculating reformed gas into an intake system comprises: a first exhaust passage 31; a second exhaust passage 32 merging with the first exhaust passage 31; an exhaust purifying unit 40 provided at the first exhaust passage 31; a fuel supply part 53 supplying fuel into the second exhaust passage 32; an exhaust reforming unit 50 having a purification catalyst capable of purifying exhaust and a reforming catalyst capable of generating reformed gas from the exhaust flowing through the second exhaust passage 32 and the fuel supplied from the fuel supply part 53; a communication passage 55 branching from the second exhaust passage 32 downstream of the exhaust reforming unit 50 and communicating with the intake system; a regulation valve 54 capable of regulating a flow rate of the exhaust flowing in the second exhaust passage 32; a switching valve 56 capable of switching a gas passage of the second exhaust passage 32 to the first exhaust passage 31 side or the communication passage 55 side; and a control part 60 controlling the regulation valve 54 and the switching valve 56.
    • 解决问题的方案:提供能够适当地控制重整催化剂的温度并稳定地供给重整气体的重整气体再循环装置。 解决方案:在重整气体再循环装置100中,将重整气体再循环到进气系统中包括:第一排气通道31; 与第一排气通道31合并的第二排气通道32; 设置在第一排气通路31的排气净化单元40; 向第二排气通路32供给燃料的燃料供给部53; 具有能够净化废气的净化催化剂的排气重整单元50和能够从流过第二排气通道32的排气和从燃料供给部53供给的燃料产生重整气体的重整催化剂; 连通路55,其从排气重整单元50的下游侧的第二排气通路32分支,与进气系统连通; 调节阀54,其能够调节在第二排气通路32中流动的排气的流量; 切换阀56,其能够将第二排气通路32的气体通路切换到第一排气通路31侧或连通路55侧; 控制部分60控制调节阀54和切换阀56.版权所有:(C)2013,JPO&INPIT
    • 7. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2011047341A
    • 2011-03-10
    • JP2009197657
    • 2009-08-28
    • Nissan Motor Co Ltd日産自動車株式会社
    • NAGAMINE MORIHIROASHIDA KOICHIKAKUHO AKIHIKO
    • F02M61/08F02D41/02F02D41/04F02M61/18F02M63/00
    • PROBLEM TO BE SOLVED: To reduce an unburned fuel loss and improve fuel economy, by preventing fuel spray from adhering to the upper inner wall surface of a pent roof-shaped combustion chamber.
      SOLUTION: An outwardly-opening fuel injection valve 19 is so configured that the angle formed between the visible outline of the side of the upper inner wall surface and a cylinder axis, of the fuel spray injected toward the intake-side inclined surface 9 and exhaust-side inclined surface 11 of wall surfaces forming the combustion chamber 6, formed on a cylinder head 3, is smaller than the angle formed between the visible outline of the side of the upper inner wall surface and the cylinder axis, of the fuel spray injected along the ridge line 12 of the combustion chamber 6. The fuel spray from the fuel injection valve 19 is prevented from being brought into contact with the upper inner wall surface 7 of the pent roof-shaped combustion chamber 6, no rebound to the output of the internal combustion engine occurs, the unburned fuel loss is reduced, and the fuel economy is improved.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过防止燃料喷雾附着在顶盖式燃烧室的上部内壁面上,减少未燃燃料损失并提高燃油经济性。 解决方案:向外开口的燃料喷射阀19被构造成使得在朝向吸气侧倾斜表面喷射的燃料喷雾之间形成的在上内壁表面的侧面的可见轮廓与气缸轴线之间形成的角度 9和形成在气缸盖3上的形成燃烧室6的壁面的排气侧倾斜面11比在上内壁面侧面与气缸轴线的可视轮廓之间形成的角度小 燃料喷雾沿着燃烧室6的脊线12喷射。来自燃料喷射阀19的燃料喷雾被防止与顶盖式燃烧室6的上内壁表面7接触,不会反弹到 发生内燃机的输出,燃料损失减少,燃料经济性提高。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Compression ignition internal combustion engine
    • 压缩点火内燃机
    • JP2010121572A
    • 2010-06-03
    • JP2008297444
    • 2008-11-21
    • Nissan Motor Co Ltd日産自動車株式会社
    • KAKUHO AKIHIKOASHIDA KOICHISHINJO TAKASHI
    • F02B3/06F02B15/00F02B23/02F02B23/06F02B31/00F02D41/04F02D43/00F02M61/14
    • Y02T10/12Y02T10/125Y02T10/146
    • PROBLEM TO BE SOLVED: To achieve secure ignition in a low load region and suppression of combustion noise in a high load region by making distribution of octane numbers of fuel in a combustion chamber 4 suitable for an engine operation state. SOLUTION: Two fuel valves are arranged in a center of an upper part of the combustion chamber 4, and conic sprays are different in spray angles. A high octane number fuel F1 has a narrow spray angle, and is sprayed into a cavity 17 of a piston 3 in the latter half of the compression stroke in the low load region and the intermediate load region. A low octane number fuel F2 has a wide spray angle, and the compression ignition timing thereof is controlled by the injection timing, and is sprayed in the timing not interfering with the high octane number fuel F1 colliding with the cavity 17 in the low load region, and is sprayed in the timing interfering with the high octane number fuel F1 ascended from the cavity 17 in the intermediate load region, and a part thereof is mixed, and fuel having an intermediate octane number is obtained. In the high load region, the high octane number fuel is injected in the intake stroke, and is mixed with the low octane number fuel F2 injected later. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过使燃烧室中的燃料的辛烷值分配适合于发动机运转状态,在低负荷区域中实现可靠的点火并抑制高负载区域的燃烧噪声。 解决方案:在燃烧室4的上部的中心设置有两个燃料阀,并且喷射角度不同。 高辛烷值燃料F1具有窄的喷射角度,并且在低负载区域和中间负载区域中的压缩行程的后半部分中喷射到活塞3的空腔17中。 低辛烷值燃料F2具有宽的喷射角度,并且其压燃点火正时由喷射正时控制,并且在不干扰低辛烷值燃料F1与低负荷区域中的空腔17相撞的时刻喷射 并且在与中间载荷区域中的空腔17上升的高辛烷值燃料F1相对的时刻喷雾,其一部分混合,得到具有中间辛烷值的燃料。 在高负荷区域中,在进气冲程中喷射高辛烷值燃料,并与稍后喷射的低辛烷值燃料F2混合。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Sub-chamber type internal combustion engine
    • 分舱式内燃机
    • JP2007255370A
    • 2007-10-04
    • JP2006083152
    • 2006-03-24
    • Nissan Motor Co Ltd日産自動車株式会社
    • ASHIDA KOICHINODA TORUKURODA MASASHI
    • F02B19/12F02B19/10F02P5/15F02P15/08
    • F02B19/12F02B23/101Y02T10/125
    • PROBLEM TO BE SOLVED: To provide a sub-chamber type internal combustion engine capable of generating a torch flame having an optimum intensity according to an operating condition.
      SOLUTION: The sub-chamber type internal combustion engine comprises: a main chamber 4 serving as a main combustion chamber; a sub-chamber 12 provided adjacent to the main chamber 4 and having a smaller volume than the main chamber 4; a nozzle 12a provided on a wall of the sub-chamber 12 and serving as a communication path for communicating between the main chamber 4 and the sub-chamber 12; and a sub-chamber ignition unit 13 capable of setting any ignition timing in the sub-chamber 12. The sub-chamber type internal combustion engine further comprises: a main chamber ignition unit 14 capable of setting any ignition timing in the main chamber 4; and an ignition timing control unit 16 for controlling ignition timing of the sub-chamber ignition unit 13 and the main chamber ignition unit 14. According to an operating condition, a control is executed by the ignition timing control unit 16 so that the main chamber ignition unit 14 first ignites the main chamber 4, and then, the sub-chamber ignition unit 13 ignites the sub-chamber 12.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够根据操作条件产生具有最佳强度的割炬火焰的子室型内燃机。 解决方案:副室型内燃机包括:主室4,用作主燃烧室; 与主室4相邻并且具有比主室4小的体积的子室12; 设置在副室12的壁上,用作连通主室4与副室12的连通路的喷嘴12a; 以及能够在副室12中设定点火正时的副室点火单元13.副室型内燃机还包括:主室点火单元14,其能够设定主室4中的点火正时; 以及用于控制副室点火单元13和主室点火单元14的点火正时的点火正时控制单元16.根据操作状态,点火正时控制单元16执行控制,使得主室点火 单元14首先点燃主室4,然后,子室点火单元13点燃子室12.版权所有(C)2008,JPO&INPIT