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    • 1. 发明申请
    • ELECTRICALLY HEATED CATALYST
    • 电加热催化剂
    • US20130183205A1
    • 2013-07-18
    • US13515374
    • 2012-01-12
    • Mamoru YoshiokaYoshiharu Saito
    • Mamoru YoshiokaYoshiharu Saito
    • B01J19/00
    • F01N3/2026F01N3/2864Y02T10/26
    • Electricity is suppressed from flowing through a case of an electrically heated catalyst. For this purpose, the case for accommodating a heat generating element includes a tubular portion which is formed in parallel to a central axis, an inlet portion which is provided on the upstream side from the tubular portion and which has an inner diameter smaller than that of the tubular portion, an inclined portion which connects the tubular portion and the inlet portion, and an introducing portion which extends from a connected portion between the inlet portion and the inclined portion toward inside of the case and which is curved so that a center of curvature is positioned at the outside; and an inner tube interposed by a mat for supporting the heat generating element includes a tubular portion which is formed in parallel to a central axis, and an inclined portion which is provided on the upstream side from the tubular portion, which has inner diameters that are decreased on the more upstream side, and which is curved.
    • 抑制电流流过电加热催化剂的壳体。 为此,用于容纳发热元件的壳体包括平行于中心轴线形成的管状部分,入口部分设置在从管状部分的上游侧并且内径小于 管状部分,连接管状部分和入口部分的倾斜部分以及从入口部分和倾斜部分之间的连接部分朝向壳体内侧延伸并且弯曲的引导部分,使得曲率中心 位于外面; 并且用于支撑发热元件的垫插入的内管包括平行于中心轴线形成的管状部分和设置在管状部分的上游侧的倾斜部分,其内径为 在更上游侧减少,并且是弯曲的。
    • 2. 发明授权
    • Electrically heated catalyst
    • 电加热催化剂
    • US08741224B2
    • 2014-06-03
    • US13515374
    • 2012-01-12
    • Mamoru YoshiokaYoshiharu Saito
    • Mamoru YoshiokaYoshiharu Saito
    • B01D50/00
    • F01N3/2026F01N3/2864Y02T10/26
    • Electricity is suppressed from flowing through a case of an electrically heated catalyst. For this purpose, the case for accommodating a heat generating element includes a tubular portion which is formed in parallel to a central axis, an inlet portion which is provided on the upstream side from the tubular portion and which has an inner diameter smaller than that of the tubular portion , an inclined portion which connects the tubular portion and the inlet portion, and an introducing portion which extends from a connected portion between the inlet portion and the inclined portion toward inside of the case and which is curved so that a center of curvature is positioned at the outside; and an inner tube interposed by a mat for supporting the heat generating element includes a tubular portion which is formed in parallel to a central axis, and an inclined portion which is provided on the upstream side from the tubular portion, which has inner diameters that are decreased on the more upstream side, and which is curved.
    • 抑制电流流过电加热催化剂的壳体。 为此,用于容纳发热元件的壳体包括平行于中心轴线形成的管状部分,入口部分设置在从管状部分的上游侧并且内径小于 管状部分,连接管状部分和入口部分的倾斜部分以及从入口部分和倾斜部分之间的连接部分朝向壳体内侧延伸并且弯曲的引导部分,使得曲率中心 位于外面; 并且用于支撑发热元件的垫插入的内管包括平行于中心轴线形成的管状部分和设置在管状部分的上游侧的倾斜部分,其内径为 在更上游侧减少,并且是弯曲的。
    • 4. 发明授权
    • Electrically heated catalyst
    • 电加热催化剂
    • US09121322B2
    • 2015-09-01
    • US13695532
    • 2010-08-31
    • Takashi WatanabeMamoru Yoshioka
    • Takashi WatanabeMamoru Yoshioka
    • B01D50/00F01N3/20
    • F01N3/2026F01N3/2013F01N3/2871Y02T10/26
    • The present invention is intended to suppress a decrease in insulation resistance between electrodes and a case in an electrically heated catalyst (EHC). The EHC according to the present invention is provided with a heat generation element that is electrically energized to generate heat thereby to heat a catalyst, a case that receives a heat generation element therein, an insulating member that is arranged between the heat generation element and the case for insulating electricity, electrodes that are connected to the heat generation element through an electrode chamber which is a space located between an inner wall surface of the case and an outer peripheral surface of the heat generation element, and a communication passage that makes communication between a portion of an exhaust system of the internal combustion engine, which is other than a portion thereof in which the electrically heated catalyst is arranged, and the electrode chamber.
    • 本发明旨在抑制电极之间的绝缘电阻降低和电加热催化剂(EHC)中的情况。 根据本发明的EHC具有发电元件,其通电以产生热量,从而加热催化剂,其中容纳发热元件的壳体,布置在发热元件和发热元件之间的绝缘构件 通过电极室连接到发热元件的电极,该电极室是位于壳体的内壁表面和发热元件的外周表面之间的空间,以及连通通道, 内燃机的排气系统的一部分,其不同于其中布置有电加热催化剂的部分,以及电极室。
    • 5. 发明授权
    • Electric heating catalyst
    • 电加热催化剂
    • US09060387B2
    • 2015-06-16
    • US13814676
    • 2010-08-23
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • H05B3/06H05B1/00F01N3/20F01N3/00B01D53/88
    • H05B1/00B01D53/88F01N3/005F01N3/2013F01N2470/24Y02T10/26
    • An object of the invention is to control the penetration of condensed water into an insulation member or a heater element in an electric heating catalyst (EHC). The EHC according to the invention includes a heater element that generates heat by supply of electric current to heat a catalyst, a casing that houses the heater element, an insulation member provided between the heater element and the casing to provide electric insulation, and an electrode connected to the heater element through an electrode chamber, which is a space located between the inner wall surface of the casing and the outer circumferential surface of the heater element. The EHC is further provided with a bypass passage, one end of which is connected to a bottom part of the casing at a position upstream of the upstream end face of the insulation member. The bypass passage bypasses the insulation member.
    • 本发明的一个目的是控制冷凝水渗透到电加热催化剂(EHC)中的绝缘构件或加热元件中。 根据本发明的EHC包括通过供应电流来加热催化剂而产生热量的加热器元件,容纳加热器元件的壳体,设置在加热器元件和壳体之间以提供电绝缘的绝缘部件,以及电极 通过电极室连接到加热器元件,该电极室是位于壳体的内壁表面和加热器元件的外周表面之间的空间。 EHC还设置有旁通通道,其旁边通道在绝缘构件的上游端面的上游位置连接到壳体的底部。 旁通通道绕过绝缘构件。
    • 8. 发明授权
    • Electrically heated catalyst
    • 电加热催化剂
    • US08894942B2
    • 2014-11-25
    • US13821595
    • 2010-09-09
    • Mamoru YoshiokaTakashi Watanabe
    • Mamoru YoshiokaTakashi Watanabe
    • B01D50/00
    • F01N3/2026B01D53/9431B01D53/9454F01N3/2013F01N3/2853F01N3/2871F01N2240/16F01N2330/06F01N2330/10F01N2470/08Y02T10/22Y02T10/26
    • Electricity is suppressed from flowing to a case (4) of an electrically heated catalyst (1). Provision is made for a heat generation element (2) adapted to be electrically energized to generate heat, the case (4) in which the heat generation element (2) is contained, a mat (5) arranged between the heat generation element (2) and the case (4) to insulate electricity and at the same time to support the heat generation element (2), an electrode (6) connected to the heat generation element (2) from outside of the case (4), an insulation part (7) to plug a gap between the case (4) and the electrode (6), an electrode chamber (8) which is a space formed around the electrode (6) at an inner side of the case (4) and at an outer side of the heat generation element (2), and which is formed by providing a gap between the electrode (6) and the mat (5), and a partition part (9) arranged in the electrode chamber (8) at an upstream side of the electrode (6) in a direction of flow of an exhaust gas, in such a manner that the exhaust gas flowing through the interior of the electrode chamber (8) impinges against the partition part (9).
    • 抑制电流流向电加热催化剂(1)的壳体(4)。 规定了适用于通电以产生热量的发热元件(2),其中容纳发热元件(2)的壳体(4),布置在发热元件(2)之间的垫(5) )和壳体(4),以隔离电力并同时支撑发热元件(2),从壳体(4)的外部连接到发热元件(2)的电极(6),绝缘体 插入壳体(4)和电极(6)之间的间隙的部分(7),电极室(8),其在壳体(4)的内侧周围形成在电极(6)周围的空间, 通过在电极(6)和垫(5)之间设置间隙而形成的发热元件(2)的外侧,以及配置在电极室(8)内的分隔部(9) 电极(6)的上游侧沿着排气的流动方向,使得流过电极室(8)的内部的废气, 撞击分隔部分(9)。
    • 9. 发明授权
    • Exhaust gas purification apparatus of an internal combustion engine
    • 内燃机废气净化装置
    • US08863498B2
    • 2014-10-21
    • US13122089
    • 2010-07-15
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • Mamoru YoshiokaNoriaki KumagaiNaoya Takagi
    • F01N3/00F01N3/20F01N13/00F01N3/32F01N3/28
    • F01N13/008F01N3/2013F01N3/2026F01N3/2853F01N3/2871F01N3/323F01N2240/16F01N2330/06F01N2470/08Y02T10/26
    • The present invention has for its subject to avoid a situation that condensed water stays around electrode terminals, in an electric heating type exhaust gas purification apparatus which is arranged in an exhaust system of an internal combustion engine. In order to solve this subject, the present invention resides in an exhaust gas purification apparatus of an internal combustion engine which is provided with a catalyst carrier having electrodes, a case in which the catalyst carrier is accommodated, a mat member arranged between the catalyst carrier and the case, a space part extending from the catalyst carrier to the case while passing through the mat member, and electrode terminals accommodated in said space part for supplying electric power to the electrodes of the catalyst carrier, wherein exhaust gas and condensed water are kept from permeating into the space part through the mat member or the catalyst carrier, by the provision of a pressure supply unit which supplies a positive pressure to the space part.
    • 本发明的目的在于避免在布置在内燃机的排气系统中的电加热型废气净化装置中冷凝水停留在电极端子周围的情况。 为了解决这个问题,本发明涉及一种内燃机的排气净化装置,该内燃机的排气净化装置具有电极的催化剂载体,容纳催化剂载体的壳体,配置在催化剂载体 以及壳体,通过垫子部件从催化剂载体延伸到壳体的空间部分,以及容纳在所述空间部分中的用于向催化剂载体的电极供电的电极端子,其中保留有排气和冷凝水 通过设置向空间部供给正压的压力供给单元,通过垫构件或催化剂载体渗入空间部。
    • 10. 发明申请
    • FAILURE DETECTION APPARATUS FOR AN ELECTRICALLY HEATED CATALYST
    • 用于电加热催化剂的故障检测装置
    • US20140292350A1
    • 2014-10-02
    • US14359142
    • 2011-12-20
    • Mamoru Yoshioka
    • Mamoru Yoshioka
    • G01R31/00G01R31/12
    • G01R31/006F01N3/2006F01N3/2013F01N3/2026F01N3/2853F01N9/00F01N11/00F01N2240/16F01N2330/06F01N2550/00F01N2550/22F01N2900/1628G01R31/1263Y02T10/26Y02T10/47
    • The present invention is intended to detect insulation failure of an EHC. In the invention, a heat generation element of the EHC is electrically insulated by an insulating member. Then, a determination as to whether insulation failure has occurred is made based on an insulation resistance value of the insulating member at the time when an amount of water absorption in the insulating member is smaller than a predetermined amount of water absorption and when an amount of PM deposition in the insulating member is smaller than a predetermined amount of PM deposition, a change in the insulation resistance value of the insulating member at the time when the amount of water absorption in the insulating member decreases from an amount equal to or larger than the predetermined amount of water absorption to an amount smaller than the predetermined amount of water absorption, and a change in the insulation resistance value of the insulating member at the time when the amount of PM deposition in the insulating member decreases from an amount equal to or larger than the predetermined amount of PM deposition to an amount smaller than the predetermined amount of PM deposition.
    • 本发明旨在检测EHC的绝缘故障。 在本发明中,EHC的发热元件由绝缘构件电绝缘。 然后,基于绝缘构件的吸水量小于预定吸水量时的绝缘构件的绝缘电阻值,确定是否发生绝缘破坏, 在绝缘构件中的PM沉积小于预定量的PM沉积,绝缘构件的吸水量从绝缘构件的吸水量的等于或大于该量的量的绝缘构件的绝缘电阻值的变化 预定量的吸水量小于预定吸水量的量,以及当绝缘构件中的PM沉积量从等于或等于更大的量减少时绝缘构件的绝缘电阻值的变化 比预定量的PM沉积小于预定量的PM沉积量。