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    • 5. 发明专利
    • Exhaust gas recirculation device for internal combustion engine
    • 用于内燃机的排气回收装置
    • JP2008196306A
    • 2008-08-28
    • JP2007029063
    • 2007-02-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • SATO YASUOHORIKOSHI OSAMUTAKADA TOMOYUKIITO HIROKAZUITOU HISANORI
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an internal combustion engine changing a position where EGR gas is unevenly distributed, depending on operational statuses of the internal combustion engine. SOLUTION: In the exhaust gas recirculation device, the EGR gas is led into a swirl generating port 12. A lower layer part 18b which generates a tangential flow St flowing to a tangential direction of an inner circumferential surface of the cylinder 2 in the process of leading air into the cylinder 2, and a higher layer part 18b which generates a swirl flow Sr flowing to a direction of a center line CL while swirling in a surface intersecting with the center line CL in the process of leading the air into the cylinder 2 are formed in the same port, and they are adjacent to each other. Two regulating valves 51, 52 are operated depending on the operational statuses of the internal combustion engine 1, so that an EGR gas amount into the lower layer part 18b and an EGR gas amount led into the upper layer part 18a are respectively controlled, and the distribution of the amounts are changed. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种根据内燃机的运行状态改变EGR气体不均匀分布的位置的内燃机的废气再循环装置。 解决方案:在排气再循环装置中,EGR气体被引导到涡流生成口12中。下层部分18b产生切向气流St流向圆筒2的内圆周表面的切线方向, 引导空气进入气缸2的过程,以及在将空气引导到过程中产生旋转流量Sr的高层部分18b,其产生在与中心线CL相交的表面中旋转的中心线CL的方向 气缸2形成在相同的端口中,并且彼此相邻。 两个调节阀51,52根据内燃机1的运转状态进行动作,分别控制进入下层部18b的EGR气体量和导入上层部18a的EGR气体量, 金额的分配发生变化。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Intake port for internal combustion engine
    • 内燃机入口
    • JP2007297988A
    • 2007-11-15
    • JP2006127352
    • 2006-05-01
    • Toyota Motor Corpトヨタ自動車株式会社
    • ENDO GENSHIROSATO YASUOITOU HISANORIHORIKOSHI OSAMUTAKADA TOMOYUKIITO HIROKAZU
    • F02B31/02F02F1/42
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To simultaneously secure a strong swirl and high filling efficiency. SOLUTION: A partition wall 17 for vertically partitioning inside of an intake air inflow passage part 8 is arranged inside the intake air inflow passage part 8 of an intake port 4, and an upper flow passage Y and a lower flow passage X are formed above and below the partition wall 17, respectively. A lower flow flowing inside the lower flow passage X passes through an intake valve opening region Z at the time of opening of an intake valve 6 and flows into the peripheral direction of a combustion chamber 3, so as to generate a swirl. An upper flow flowing inside the upper flow passage Y passes through a spiral part 7 and flows into the combustion chamber 3. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:同时确保强烈的漩涡和高填充效率。 解决方案:在进气口4的吸入空气流入通道部分8的内部,配置有用于在吸入空气流入通道部分8内部垂直分隔的分隔壁17,上流路Y和下流路X分别为 分别形成在分隔壁17的上方和下方。 在下流路X内流动的下流在进气阀6打开时通过进气阀开口区域Z,流入燃烧室3的周向,从而产生涡流。 在上流道Y内流动的上流通过螺旋部分7并流入燃烧室3.版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Intake device for internal combustion engine
    • 内燃机装置
    • JP2007162516A
    • 2007-06-28
    • JP2005356855
    • 2005-12-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • ITOU HISANORISATO YASUOHORIKOSHI OSAMUTAKADA TOMOYUKIITO HIROKAZU
    • F02F1/42F02B31/02
    • Y02T10/146
    • PROBLEM TO BE SOLVED: To provide an intake device for an internal combustion engine capable of intensifying swirl formed in a cylinder by two ports while inhibiting interference of flows of adjoining two intake ports.
      SOLUTION: Two adjoining intake ports 4, 5 provided on a same cylinder 2 of the internal combustion engine 1 are constructed as helical ports respectively, and form swirl in the cylinder head 2. A guiding part 41 constructed to swell out of a curve of a helical part 4b and extending along a circumference direction of an opening part 4a with gradually reducing distance to the opening part 4a to guide part of intake air into the cylinder toward a tangent direction of the cylinder 2 is provided on an inner circumference wall of the helical part 4b of the intake port arranged in a downstream side in a flow direction of swirl Fsw of the two intake ports 4, 5.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于内燃机的进气装置,其能够通过两个端口增强气缸中形成的涡流,同时抑制相邻两个进气口的流动的干扰。 解决方案:设置在内燃机1的同一汽缸2上的两个邻接的进气口4,5被分别构造成螺旋口,并在汽缸盖2内形成涡流。构造成从汽缸盖2内膨胀的引导部分41 螺旋部分4b的曲线,并且沿着开口部分4a的圆周方向延伸,并且与开口部分4a的距离逐渐减小,以将进入气缸的一部分朝向圆筒2的切线方向引导到圆筒2的内周壁上 位于两个进气口4,5的旋流Fsw的流动方向的下游侧的进气口的螺旋部分4b。版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Premixture compression ignition internal combustion engine
    • 高压压缩点火内燃机
    • JP2005146960A
    • 2005-06-09
    • JP2003384156
    • 2003-11-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOYAMA TAKASHIKITANO YASUSHIITOU HISANORIHASEGAWA AKIRAMISAWA SEITARO
    • F02M25/07F02D13/02F02D21/08F02D41/00F02D41/30F02D41/40
    • F02D41/006F02D41/0065F02D41/3035F02D41/3064F02D41/402Y02T10/47
    • PROBLEM TO BE SOLVED: To make it possible to supply, as quickly as possible, to cylinders an EGR gas of an appropriate volume depending on a combustion state after switching between premixture combustion and normal combustion when the switching is performed depending on a driving state of an internal combustion engine in a premixture compression ignition internal combustion engine.
      SOLUTION: In the premixture compression ignition internal combustion engine for performing premixture combustion, with respect to an external EGR gas volume supplied into the cylinders via an EGR device, a gas flow supplied into the cylinders via the EGR device is regulated so as to become a predetermined EGR gas volume depending on the driving state after the switching during a prescribed period near the changeovers of the combustion states. Besides, when the external EGR gas volume reaches below the EGR gas volume to be supplied to the cylinders during the prescribed period, part of a combustion gas is supplied to the cylinders as an internal EGR gas by regulating opening and closing characteristics of intake and exhaust valves, thus allowing the shortfall to be covered.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了尽可能快地将根据燃烧状态切换的预定燃烧和正常燃烧之间的适当体积的EGR气体尽可能快地供应到根据 预混合压缩点火式内燃机中的内燃机的驱动状态。 解决方案:在用于进行预混合燃烧的预混合压燃式内燃机中,相对于通过EGR装置供应到气缸的外部EGR气体体积,通过EGR装置供应到气缸中的气流被调节为 根据在燃烧状态的切换附近的规定期间内的切换后的驱动状态成为规定的EGR气体量。 此外,当在规定时间内外部EGR气体体积达到要提供给气缸的EGR气体体积以下时,通过调节进气和排气的开闭特性,将一部分燃烧气体作为内部EGR气体供给至气缸 阀门,从而允许缺口被覆盖。 版权所有(C)2005,JPO&NCIPI