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    • 4. 发明申请
    • STATIC MIXER FOR MIXING UREA AQUEOUS SOLUTION AND ENGINE EXHAUST GAS
    • 用于混合尿素水溶液和发动机排气的静态混合器
    • US20130104531A1
    • 2013-05-02
    • US13808759
    • 2011-07-07
    • Young Jin ChoJi Woong Park
    • Young Jin ChoJi Woong Park
    • F01N3/24
    • F01N3/24B01F3/04049B01F5/0473B01F5/0616B01F5/0618F01N3/2066F01N2240/20F01N2610/02
    • The present disclosure relates to a static mixer for mixing a urea solution and engine exhaust gas. The static mixer includes: an external tube including one end portion connected to an exhaust manifold of a diesel engine, the other end portion connected to an SCR (Selective Catalytic Reduction), and a part with which a urea solution injection adaptor is provided; an internal tube installed inside the external tube so as to have a constant gap between at least a part of an outer wall surface and an inner wall surface of the external tube; and a channel unit comprising a plurality of guiding channels provided inside the internal tube in a longitudinal direction, and having an inlet portion facing a lower end portion of the urea solution injector adaptor. The present disclosure may make the exhaust gas and the urea solution before passing through the SCR pass through the inlet portion and the plurality of guiding channels of the channel unit to form fine and even mixed gas, thereby largely decreasing an amount of nitride oxide (NOx) discharged to the air by improving a catalytic reduction reaction ratio in the SCR.
    • 本公开涉及一种用于混合尿素溶液和发动机废气的静态混合器。 静态混合器包括:外管,其包括连接到柴油发动机的排气歧管的一个端部,与SCR(选择性催化还原)连接的另一端部分和设置有尿素溶液注入适配器的部分; 内管,其安装在所述外管的内部,以便在外壁表面的至少一部分和所述外管的内壁表面之间具有恒定的间隙; 以及通道单元,其包括沿纵向设置在所述内管内部的多个引导通道,并且具有面向所述尿素溶液注射器适配器的下端部的入口部。 本公开可以使排气和尿素溶液在通过SCR之前通过入口部分和通道单元的多个引导通道,以形成精细且均匀的混合气体,从而大大减少氮氧化物(NOx )通过提高SCR中的催化还原反应比而排放到空气中。
    • 7. 发明申请
    • Ice making unit and refrigerator having the same
    • 制冰单元和冰箱具有相同的功能
    • US20090178431A1
    • 2009-07-16
    • US12314452
    • 2008-12-10
    • Young Jin Cho
    • Young Jin Cho
    • F25C1/10
    • F25C1/04F25C5/06F25C2305/022F25C2400/06F25C2400/10
    • An ice making unit and a refrigerator having the same are disclosed. The refrigerator includes an ice making unit to make ice pieces. The ice making unit includes a plurality of ice making trays to form ice pieces, a lever part connected to the ice making trays to simultaneously rotate the ice making trays, and a stopper to prevent one of a pair of rotating shafts of each of the ice making trays from being rotated at a predetermined angle or more so that the ice making trays get twisted when the ice making trays are rotated. Accordingly, ice pieces can be separated from the ice making trays by operation of a single lever.
    • 公开了制冰单元和具有该制冰单元的冰箱。 冰箱包括制冰单元,制作冰块。 制冰单元包括多个用于形成冰块的制冰托盘,连接到制冰托盘以同时旋转制冰托盘的杆部分,以及用于防止每个冰的一对旋转轴中的一个的塞子 使托盘以预定角度或更大的角度旋转,使得当制冰托盘旋转时制冰托盘扭曲。 因此,冰块可以通过单个操作杆的操作与制冰盘分离。
    • 9. 发明授权
    • Micro actuator and ink jet printer head manufactured using the same
    • 微型致动器和使用其制造的喷墨打印头
    • US06530652B1
    • 2003-03-11
    • US09336333
    • 1999-06-18
    • Il KimYoung Jin Cho
    • Il KimYoung Jin Cho
    • B41J2045
    • H01L41/0973B41J2202/03B41J2202/11
    • Disclosed is a micro actuator and an ink jet printer head manufactured using the same. The micro actuator comprises a substrate having a space part which is integrally defined in the substrate and is opened only at a lower end thereof; a first piezoelectric element formed on the substrate in a first area which is arranged above the space part and actuated when voltage is applied thereto; a second piezoelectric element formed on the substrate in a second area which is not arranged above the space part and not actuated even when voltage is applied thereto; and an upper electrode formed on the first piezoelectric element; whereby rigidity of an entire structure is elevated and panel vibration is reduced, by the second piezoelectric element.
    • 公开了一种使用其制造的微致动器和喷墨打印机头。 微型致动器包括具有空间部分的基板,该空间部分一体地限定在基板中,仅在其下端处打开; 第一压电元件,其形成在所述基板上的第一区域中,所述第一区域布置在所述空间部分上方并且当施加电压时被致动; 第二压电元件,形成在第二区域中的第二区域上,该第二区域未布置在空间部分上方,并且即使施加电压也不被致动; 以及形成在所述第一压电元件上的上电极; 由此,通过第二压电元件,整体结构的刚性提高,面板振动减小。