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    • 22. 发明专利
    • Exhaust gas recirculation device of multi-cylinder engine
    • 多缸发动机排气回收装置
    • JP2013241864A
    • 2013-12-05
    • JP2012114629
    • 2012-05-18
    • Mazda Motor Corpマツダ株式会社
    • KOGA TATSUYA
    • F02M25/07F02B7/02F02B23/10
    • F02M25/07F02M26/22F02M26/44Y02T10/121
    • PROBLEM TO BE SOLVED: To suppress fluctuation of EGR amounts introduced each of cylinders while making it possible to adjust the EGR amounts with excellent responsibility by opening control of an EGR valve.SOLUTION: An exhaust gas recirculation device 40 includes an EGR pipe 41, an EGR manifold 45 branching from the EGR pipe 41, and an EGR valve 43 for adjusting an EGR gas amount. The EGR manifold 45 has a common EGR passage 46 having a single pipe portion 46a and branched pipe portions 46b1, 46b2 and communicating to intake ports 8 of a plurality of cylinders 2A, 2D not continuous in combustion order, and independent EGR passages 47, 48 communicating to the intake ports 8 of specific cylinders 2A, 2D. Each shape of the common EGR passage 46 and independent EGR passages 47, 48 is set so that the volume of a communicating path in the EGR manifold 45 connecting an arbitrary cylinder with a cylinder where combustion is performed subsequently thereto has the same volume for any cylinder combination having the adjacent combustion order.
    • 要解决的问题:为了抑制引入每个气缸的EGR量的波动,同时通过打开EGR阀的控制能够以优异的责任调节EGR量。解决方案:排气再循环装置40包括EGR管41, 从EGR管41分支的EGR集管45和用于调节EGR气体量的EGR阀43。 EGR歧管45具有共同的EGR通路46,其具有单个管部分46a和分支管部分46b1,46b2,并且连通到燃烧阶段不连续的多个气缸2A,2D的进气口8和独立的EGR通道47,48 与特定气缸2A,2D的进气口8相通。 公共EGR通道46和独立的EGR通道47,48的每个形状被设定为使得连接任意气缸的EGR集管45中的连通路径的体积随后进行燃烧的气缸具有相同的体积 组合具有相邻的燃烧顺序。
    • 23. 发明专利
    • Exhaust heat exchanging device
    • 排气换热装置
    • JP2012132394A
    • 2012-07-12
    • JP2010286472
    • 2010-12-22
    • Denso Corp株式会社デンソー
    • NISHIYAMA YUKITAKAWATANABE HARUHIKOHAYASHI TAKAYUKI
    • F02M25/07
    • F02M25/07F02B29/0443F02M26/26F02M26/32Y02T10/146
    • PROBLEM TO BE SOLVED: To provide an exhaust heat exchanging device that can prevent cooling water from boiling due to a dead water area while suppressing the supercooling of exhaust air.SOLUTION: The exhaust heat exchanging device includes: an inflow part 130 provided at one end of a casing 120 to permit a cooling medium to flow into a cooling medium passage 121; a first discharge part 140 provided at the other end of the casing 120 to discharge the cooling medium from the cooling medium passage 121; a second discharge part 150 provided at the one end of the casing 120 at a position opposing the inflow part 130, for discharging the cooling medium from the cooling medium passage 121, and the downstream of which joins the downstream of the first discharge part 140; and a flow volume adjustment part 170A for permitting the cooling medium to be discharged from the first discharge part 140 and the second discharge part 150 at all times, and for adjusting the ratio of the flow volumes of the cooling medium discharged from the first discharge part 140 and the second discharge part 150 in response to the operating state of an internal combustion engine 10.
    • 解决的问题:提供一种排气热交换装置,其能够防止冷却水由于死水区域而沸腾,同时抑制排气的过冷。 排气热交换装置包括:流入部130,其设置在壳体120的一端,以允许冷却介质流入冷却介质通道121; 第一排出部140,其设置在壳体120的另一端,以将冷却介质从冷却介质通道121排出; 第二排出部分150,其设置在壳体120的一端处于与流入部分130相对的位置,用于从冷却介质通道121排出冷却介质,并且其下游连接在第一排出部分140的下游; 以及流量调整部170A,用于一直允许冷却介质从第一排出部140和第二排出部150排出,并且用于调节从第一排出部排出的冷却介质的流量比 140和第二排出部分150响应于内燃机10的运行状态。版权所有(C)2012,JPO&INPIT