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    • 107. 发明授权
    • Electric heating catalyst
    • 电加热催化剂
    • US09371761B2
    • 2016-06-21
    • US13983962
    • 2011-02-10
    • Mamoru Yoshioka
    • Mamoru Yoshioka
    • B01D50/00F01N3/20H05B3/42B01J35/00B01J35/04
    • F01N3/2013B01J35/0033B01J35/04F01N3/10F01N3/2026F01N3/28F01N3/2853F01N2240/16H05B3/42H05B2203/023Y02T10/26
    • The present invention is intended to achieve improvement in an exhaust gas purification rate as well as suppression of breakage or damage of a heater element in an electric heating catalyst (EHC), by causing the heater element to generate heat in a more suitable manner. In an EHC according to the present invention, a pair of surface electrodes (7a) are formed in such a manner that they extend spirally from one end toward the other end of a heater element (3), which is formed into a cylindrical shape, along an outer circumferential surface of the heater element (3), and mutually cross each other while sandwiching the heater element (3) therebetween. Moreover, the width in each of the surface electrodes (7a) in the vicinity of their ends which are in contact with circumferences of end faces of the heater element (3) is enlarged.
    • 本发明旨在通过使加热器元件以更合适的方式产生热量来实现废气净化率的提高以及电加热催化剂(EHC)中的加热元件的破坏或损坏的抑制。 在根据本发明的EHC中,一对表面电极(7a)形成为从形成为圆筒状的加热器元件(3)的一端朝向另一端螺旋状地形成, 沿着加热器元件(3)的外周表面,并且彼此交叉,同时将加热器元件(3)夹在其间。 此外,与加热器元件(3)的端面的周向接触的其端部附近的每个表面电极(7a)中的宽度增大。
    • 108. 发明申请
    • ABNORMALITY DETECTION APPARATUS FOR ELECTRICALLY HEATED CATALYST
    • 电加热催化剂异常检测装置
    • US20150285117A1
    • 2015-10-08
    • US14367551
    • 2011-12-21
    • Mamoru Yoshioka
    • Mamoru Yoshioka
    • F01N3/20F01N11/00G01N27/14
    • F01N3/2013F01N3/2006F01N3/2026F01N3/2853F01N3/2864F01N11/00F01N2550/22F01N2900/0602F01N2900/1404G01N27/14Y02T10/26Y02T10/47
    • Abnormality of an electrically heated catalyst is detected in a more accurate manner. In an abnormality detection apparatus for an electrically heated catalyst which is provided with a heat generation element that is arranged in an exhaust passage of an internal combustion engine, and is electrically energized to generate heat, and an insulation part that provides electrical insulation so that electricity does not flow through the exhaust passage when the heat generation element is electrically energized, provision is made for a determination unit which makes a determination that abnormality has occurred in the electrically heating catalyst, in cases where the heat generation element is electrically energized from before starting of the internal combustion engine, and in cases where a value of an insulation resistance of the insulation part after a predetermined period of time has elapsed from the starting of the internal combustion engine is equal to or less than a threshold value.
    • 以更准确的方式检测电加热催化剂的异常。 在电加热催化剂的异常检测装置中,该异常检测装置具有设置在内燃机的排气通路中并被通电以产生热量的发热元件,以及提供电绝缘的绝缘部件,使得电 当发热元件通电时,在发热元件从起动前被赋能的情况下,对确定电加热催化剂中发生异常的判定单元进行设定,不会流过排气通路 并且在从内燃机的起动经过了预定时间段之后的绝缘部件的绝缘电阻值的值等于或小于阈值的情况下。
    • 109. 发明授权
    • Electric heating catalyst
    • 电加热催化剂
    • US08961884B2
    • 2015-02-24
    • US13980975
    • 2011-02-14
    • Noriaki KumagaiMamoru Yoshioka
    • Noriaki KumagaiMamoru Yoshioka
    • B01D50/00
    • H05B1/00F01N3/20F01N3/2026F01N3/28F01N3/2853F01N3/2871F01N13/14F01N2240/16Y02T10/26
    • The electricity is suppressed from flowing through a case (5) of an electric heating catalyst (1). The electric heating catalyst (1) comprises a heat generating element (3) which generates heat by applying electricity; a case (5) which accommodates the heat generating element (3); an inner tube (4) which is provided between the heat generating element (3) and the case (5); and a mat (6) which is provided between the heat generating element (3) and the inner tube (4) and between the inner tube (4) and the case (5) and which insulates the electricity; wherein the inner tube (4) protrudes from the mat (6) toward an upstream side and a downstream side in a flow direction of an exhaust gas, the inner tube (4) is composed of at least two substances having different thermal conductivities, the substance (42) having the lower thermal conductivity is arranged on an inner side as compared with a surface, and the substance (41) having the higher thermal conductivity is arranged to surround the substance having the lower thermal conductivity.
    • 抑制电流流过电加热催化剂(1)的壳体(5)。 电加热催化剂(1)包括通过施加电力产生热的发热元件(3) 容纳发热元件(3)的壳体(5); 设置在发热元件(3)和壳体(5)之间的内管(4); 和设置在所述发热元件(3)和所述内管(4)之间以及所述内管(4)和所述壳体(5)之间并且使所述电绝缘的垫(6) 其特征在于,所述内管(4)从所述垫(6)朝向排气的流动方向的上游侧和下游侧突出,所述内管(4)由至少两种具有不同导热性的物质构成, 与表面相比,具有较低热传导率的物质(42)布置在内侧,并且具有较高导热性的物质(41)被布置成包围具有较低导热性的物质。
    • 110. 发明授权
    • Electrically heated catalyst
    • 电加热催化剂
    • US08911674B2
    • 2014-12-16
    • US13821919
    • 2010-09-10
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • B01D50/00
    • F01N3/2026B01D53/9431B01D53/9454F01N3/2864F01N2240/16Y02T10/22Y02T10/26
    • The flow of electricity to the case (4) of an electrically heated catalyst (1) is inhibited. The heating element (2), the case (4), and the electrically insulating inner pipe (3) provided between the heating element (2) and the case (4) and inner mats 51 and 52 that are shorter in the direction of the flow of exhaust gases than inner pipe (3) that are provided in a compressed condition between heating element (2) and inner pipe (3), and outer mats 53 and 54 that are shorter in the direction of the flow of exhaust gases than inner pipe (3) that are provided in a compressed condition between inner pipe (3) and case (4) are provided and the load per unit area acting upon inner pipe (3) at the contact surface between inner pipe (3) and outer mats 53 and 54 is larger than the load born per unit area of acting upon the heating element (2) at the contact surface between the inner mats 51 and 52 and heating element (2).
    • 对电加热催化剂(1)的情况(4)的电流被抑制。 设置在加热元件(2)和壳体(4)之间的加热元件(2),壳体(4)和电绝缘内管(3)以及内垫子51和52的方向 排气的流动比在内部管(3)之间设置加热元件(2)和内管(3)之间的压缩状态,外垫53和54在废气流动方向上比内部方向短 设置在内管(3)和外壳(4)之间的压缩状态下的管道(3),并且在内管(3)和外垫之间的接触表面上作用在内管(3)上的每单位面积的载荷 53和54大于在内垫51和52与加热元件(2)之间的接触表面处作用在加热元件(2)上的每单位面积的负载。