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    • 81. 发明专利
    • Exhaust recirculation device for internal combustion engine
    • 用于内燃机的排气再循环装置
    • JP2007291974A
    • 2007-11-08
    • JP2006121674
    • 2006-04-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAGAE MASAHIRO
    • F02D21/08F02B37/00F02B37/12F02B37/24F02D23/00F02M25/07
    • F02D41/0055F01N3/035F01N11/007F02B37/24F02D9/04F02D41/0007F02D41/0052F02D41/12F02D41/123F02D41/126F02M26/05F02M26/06F02M26/10F02M26/15F02M26/24F02M26/37F02M26/60Y02T10/144Y02T10/47
    • PROBLEM TO BE SOLVED: To provide a technique quickly accelerating a vehicle while suppressing emission of NO x just after transition from the deceleration or fuel cut to the acceleration, in an exhaust recirculation device for an internal combustion engine. SOLUTION: The exhaust recirculation device includes a variable displacement turbocharger having a turbine at an exhaust passage and a compressor at an intake passage and adjusts a passage cross-sectional area of exhaust by opening of nozzle vanes, comprises: a low-pressure EGR passage connecting the exhaust passage downstream of the turbine with an intake passage upstream of the compressor to recirculate part of exhaust from the internal combustion engine into the intake passage; EGR means S102, S104 during deceleration making EGR gas flow in the low-pressure EGR passage during the deceleration of the vehicle or the fuel cut of the internal combustion engine; and a supercharging means S105 adjusting the opening of the nozzle vanes to make pressure in the intake passage reach target pressure. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种快速加速车辆的技术,同时抑制在从减速或燃料切换到加速之后的NO x 的发射,在用于内部的排气再循环装置 内燃机。 解决方案:排气再循环装置包括在排气通道处具有涡轮机的可变排量涡轮增压器和在进气通道处的压缩机,并且通过打开喷嘴叶片来调节排气通道横截面积,包括:低压 EGR通路将涡轮下游的排气通道与压缩机上游的进气通道连接,以使来自内燃机的排气的一部分再循环到进气通道中; EGR装置S102,S104,在减速期间使EGR气体在车辆减速或内燃机的燃料切断期间在低压EGR通路中流动; 并且调节喷嘴叶片的开口以使进气通道中的压力达到目标压力的增压装置S105。 版权所有(C)2008,JPO&INPIT
    • 82. 发明专利
    • Egr system for two stage supercharged engine
    • 两级超级发动机EGR系统
    • JP2007100628A
    • 2007-04-19
    • JP2005293213
    • 2005-10-06
    • Isuzu Motors Ltdいすゞ自動車株式会社
    • NITTA JUNICHIRO
    • F02D21/08F02B37/00F02B37/013F02D23/00F02M25/07
    • F02B37/127F02B29/0406F02B37/013F02B37/16F02B37/18F02D23/00F02D41/0065F02M26/08F02M26/24F02M26/38Y02T10/144
    • PROBLEM TO BE SOLVED: To provide an EGR system for a two stage supercharged engine not accompanied by deterioration of supercharging even at high EGR rate in an EGR system of the two stage supercharged engine provided with a high pressure stage turbocharger and a low pressure stage turbocharger. SOLUTION: This system is provided with a first EGR path 11 going from an exhaust path 4 between a high pressure stage turbine 6t and a low pressure stage turbine 5t to an intake path 3 between a low pressure stage compressor 5c and a high pressure stage compressor 6c, a second EGR path 14 going from an exhaust path 4 between an internal combustion engine main body 2 and the high pressure stage turbine 6t to the intake path 3 between the low pressure stage compressor 5c and the high pressure stage compressor 6c, a third EGR path 17 going from the exhaust path 4 between the internal combustion engine main body 2 and the high pressure stage turbine 6t to the intake path 3 between the high pressure stage compressor 6c and the internal combustion engine man body 2, and an EGR control device performing EGR with selecting each EGR path 11, 14, 17. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了在具有高压级涡轮增压器和低压级涡轮增压器的两级增压发动机的EGR系统中即使在高EGR率下也不伴随着增压劣化的二级增压发动机的EGR系统 压力级涡轮增压器。 解决方案:该系统设置有从高压级涡轮机6t和低压级涡轮机5t之间的排气路径4到低压级压缩机5c和高压级涡轮机5t之间的进气通路3的第一EGR通路11 压缩级压缩机6c,从内燃机主体2和高压级涡轮6t之间的排气路径4到低压级压缩机5c与高压级压缩机6c之间的进气路径3的第二EGR通路14 ,从内燃机主体2和高压级涡轮机6t之间的排气路径4到达高压级压缩机6c和内燃机人体2之间的进气路径3的第三EGR通路17,以及 EGR控制装置通过选择每个EGR通路11,14,17进行EGR。(C)2007,JPO&INPIT
    • 83. 发明专利
    • Multiple cylinder engine
    • 多缸发动机
    • JP2007064099A
    • 2007-03-15
    • JP2005251319
    • 2005-08-31
    • Nissan Diesel Motor Co Ltd日産ディーゼル工業株式会社
    • NAKAMURA SHUICHIHARADA TOMOYASUHAGIWARA MASAMI
    • F01N13/10F02B37/00F02B37/02F02B37/24F02B39/00F02M25/07
    • F02M26/42F02B29/0406F02M26/05F02M26/24F02M26/38
    • PROBLEM TO BE SOLVED: To limit pumping loss small and sufficiently utilize exhaust gas pulse for external EGR and internal EGR in a multiple cylinder engine provided with an external EGR device 40 re-circulating part of exhaust gas from an exhaust gas passage to an intake air passage or an internal EGR device 50 making exhaust gas flow reversely to a cylinder by opening an exhaust valve during intake stroke. SOLUTION: Exhaust manifolds 23a, 23b are divided to cylinder groups in which exhaust stroke does not overlap. Tapered nozzle shape flow passage parts 26a, 26b are provided right upstream of a merge part of the exhaust manifolds 23a, 23b. The minimum flow passage section area A of the tapered nozzle shape of each flow passage parts 26a, 26b is established as about 25% of the maximum opening area B of an exhaust valve per one cylinder. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了限制泵送损耗,并且在设置有外部EGR装置40的多缸发动机中,将排气的一部分从废气通道重新循环到废气通道的再循环中,将泵浦损耗减小并充分利用外部EGR和内部EGR的排气脉冲 进气通道或内部EGR装置50,通过在进气冲程期间打开排气阀,使排气与气缸相反地流动。 解决方案:排气歧管23a,23b被分成气缸组,其中排气冲程不重叠。 锥形喷嘴形状流路部26a,26b设置在排气歧管23a,23b的合流部的正上方。 每个流路部分26a,26b的锥形喷嘴形状的最小流路截面面积A被建立为每一个气缸的排气门的最大开口面积B的大约25%。 版权所有(C)2007,JPO&INPIT
    • 84. 发明专利
    • V-engine
    • V型发动机
    • JP2007032394A
    • 2007-02-08
    • JP2005216107
    • 2005-07-26
    • Hino Motors Ltd日野自動車株式会社
    • YAMAZAKI TOSHIAKI
    • F02B37/02F02B37/00F02B37/007F02B75/22F02M25/07
    • F02M26/38F02M26/08F02M26/24
    • PROBLEM TO BE SOLVED: To solve a problem of exhaust gas interference in a V-engine and drastically improve turbine efficiency and EGR distribution performance. SOLUTION: Appropriate air cylinders 4 are extracted from air cylinder rows 2 distributed to right and left sides and are halved into two groups, such that constituted cylinder blocks are continued at approximately even intervals without overlapping exhaust strokes. With respect to turbines 9 of a pair of turbochargers 8 arranged in each of the right and left cylinder rows 2, a gathered exhaust system is individually connected in each group. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了解决V型发动机中的废气干扰的问题,并且显着地提高涡轮机的效率和EGR分配性能。 解决方案:将适当的气缸4从分配给左右两侧的气缸排2抽出,并将其分成两组,使得构成的气缸体以大致均匀的间隔连续而不重叠排气冲程。 对于布置在左右两列行2中的一对涡轮增压器8的涡轮9,在各组中分别连接聚集的排气系统。 版权所有(C)2007,JPO&INPIT
    • 86. 发明专利
    • Exhaust gas recirculation device for engine with supercharger
    • 具有超级发动机的发动机排气回收装置
    • JP2005133611A
    • 2005-05-26
    • JP2003369211
    • 2003-10-29
    • Nissan Diesel Motor Co Ltd日産ディーゼル工業株式会社
    • NAKAMURA SHUICHI
    • F02B37/00F02D9/02F02D9/04F02D21/08F02D23/00F02D43/00F02M25/07
    • F02M26/05F02M26/24Y02T10/121Y02T10/144
    • PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation device for an engine with a supercharger capable of obtaining stable exhaust gas recirculation continuously even when there is a time lag in an exhaust stroke and a suction stroke. SOLUTION: In this exhaust gas reflux device for the engine 1 with the supercharger provided with an EGR passage 7 for leading a part of exhaust gas into a suction passage as EGR gas from an exhaust passage 3 and the supercharger 21 for supercharging suction air, a first check valve 13 for preventing back flow of EGR gas is provided in the EGR passage, an EGR reservoir 15 storing EGR gas is provided on the upstream side of the first check valve in the EGR passage, and a second check valve 16 for preventing back flow of EGR gas from the EGR reservoir is provided on the upstream side of the EGR reservoir in the EGR passage. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种具有能够连续获得稳定的废气再循环的增压器的用于发动机的排气再循环装置,即使当排气冲程和吸入冲程有时滞时。 解决方案:在具有增压器的发动机1的排气回流装置中,增压器设置有EGR通路7,用于将排气的一部分引导到来自排气通道3的EGR气体的吸入通道和用于增压抽吸的增压器21 空气中,在EGR通路中设置有用于防止EGR气体回流的第一止回阀13,在EGR通路的第一止回阀的上游侧设置有存储EGR气体的EGR储存器15,第二止回阀16 用于防止来自EGR容器的EGR气体的回流设置在EGR通路中的EGR容器的上游侧。 版权所有(C)2005,JPO&NCIPI