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    • 4. 发明授权
    • Device for purifying exhaust gas of an internal combustion engine
    • 一种用于净化内燃机废气的装置
    • US09145810B2
    • 2015-09-29
    • US13141253
    • 2010-01-08
    • Yuki BisaijiKoichiro FukudaKazuhiro Itoh
    • Yuki BisaijiKoichiro FukudaKazuhiro Itoh
    • F01N3/00F01N3/36F01N3/20F01N13/02F01N3/035
    • F01N3/36F01N3/035F01N3/208F01N13/02F01N2470/18F01N2610/00F01N2610/1453Y02T10/24
    • To homogeneously diffuse, in the exhaust gas, an additive that is fed into a device for purifying exhaust gas of an internal combustion engine. An upstream device for purifying exhaust gas and a downstream device for purifying exhaust gas are connected together through an exhaust pipe having a sectional area smaller than that of the upstream device for purifying exhaust gas and that of the downstream device for purifying exhaust gas, a connection passage portion is provided to connect the exhaust outlet of a catalyst in the upstream device for purifying exhaust gas to the exhaust pipe, the connection passage portion being so formed that the center axis of the upstream device for purifying exhaust gas in the direction in which the exhaust gas flows is not aligned with the center axis of the exhaust pipe in the direction in which the exhaust gas flows, injection means is arranged in the connection passage portion to inject the additive into the exhaust passage so that the additive arrives at the opposing wall surface of the connection passage portion.
    • 为了在排气中均匀地扩散被添加到用于净化内燃机的废气的装置中的添加剂。 用于净化废气的上游装置和用于净化废气的下游装置通过排气管连接在一起,该排气管的截面积小于用于净化废气的上游装置的排气管和排气净化的下游装置, 设置通路部,将用于净化废气的上游装置中的催化剂的排气口与排气管连接,连接通路部分形成为使排气净化的上游装置的中心轴线沿着 废气流不与废气流动方向上的排气管的中心轴对准,喷射装置设置在连接通道部分中,以将添加剂注入排气通道,使得添加剂到达相对的壁 连接通道部分的表面。
    • 5. 发明申请
    • EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    • 用于内燃机的排气净化装置
    • US20140216015A1
    • 2014-08-07
    • US14240527
    • 2011-08-25
    • Kazuhiro ItohShinya Hirota
    • Kazuhiro ItohShinya Hirota
    • F01N3/18
    • F01N3/18B01F3/04049B01F5/0268B01F5/0618B01F2005/0639F01N3/0814F01N3/2066F01N3/208F01N3/2892F01N2240/20F01N2610/02Y02T10/24
    • The present invention resides in an exhaust gas purification apparatus for an internal combustion engine, comprising an exhaust gas purification catalyst which is arranged in an exhaust gas passage of the internal combustion engine for a reducing agent added from a reducing agent addition valve, the reducing agent addition valve which adds the reducing agent to an exhaust gas allowed to flow upstream from the exhaust gas purification catalyst, and a dispersion member which disperses the reducing agent added from the reducing agent addition valve, wherein a task or object thereof is to form fine particles of the reducing agent and improve the dispersibility while suppressing the increase in the exhaust resistance caused by the dispersion member to be small. In order to solve the task or achieve the object, in the present invention, the dispersion member is arranged only on a flight route of a coarse reducing agent which is included in the reducing agent added from the reducing agent addition valve and which has relatively large particle diameters.
    • 本发明在于一种内燃机的废气净化装置,其特征在于,包括排气净化催化剂,所述排气净化催化剂配置在从还原剂添加阀添加的还原剂的内燃机的排气通路中,所述还原剂 将还原剂添加到允许从排气净化催化剂上游流动的排气的添加阀和分散部件,其分散从还原剂添加阀添加的还原剂,其中任务或目的是形成细颗粒 的还原剂,并且在抑制由分散构件引起的排气阻力增加的同时提高分散性。 为了解决任务或达成目的,在本发明中,分散部件仅配置在包含在从还原剂添加阀添加的还原剂中并且相对较大的粗还原剂的飞行路线上 粒径。