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发明公开
CN103874834A 电加热式催化剂 无效 - 撤回

电加热式催化剂
摘要：
本发明提供电加热式催化剂，抑制电朝电加热式催化剂(1)的壳体(5)流动。该电加热式催化剂(1)具有：因通电而发热的发热体(3)；收纳发热体(3)的壳体(5)；内管(4)，其设置在发热体(3)与壳体(5)之间，并对电进行绝缘；内侧衬垫(62)，其设置在发热体(3)与内管(4)之间；以及外侧衬垫(64)，其设置在内管(4)与壳体(5)之间，其中，内管(4)具有：管状部(42)，其设置在发热体(3)的周围且形成为与该发热体(3)的中心轴平行；以及下游侧倾斜部(43)，其设置在该管状部(42)的下游侧的位置，且越趋向下游侧则内径越小，作为管状部(42)与下游侧倾斜部(43)的边界的下游侧弯曲部(45)设置在外侧衬垫(64)的下游侧端部(64A)附近。
摘要（英）：

The purpose of the present invention is to suppress flow of electricity in a case (5) for an electrically heated catalyst (1). This electrically heated catalyst (1) is provided with: a heating element (3) that generates heat by the flow of electricity; a case (5) that accommodates the heating element (3); an inner tube (4) that is provided between the heating element (3) and the case (5) and insulates electricity; an inside mat (62) provided between the heating element (3) and the inner tube (4); and an outside mat (64) provided between the inner tube (4) and the case (5). The inner tube (4) is provided with a tube shaped part (42) that is provided around the heating element (3) and formed parallel to the center axis (A) of the heating element (3) and a downstream side inclined part (43) that is provided on the downstream side of the tube shaped part (42) and in which the inside diameter becomes smaller toward the downstream side. A downstream side curved part (45), which is the boundary between the tube shaped part (42) and the downstream side inclined part (43), is provided in proximity to a downstream side end part (64A) of the outside mat (64).

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