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1. 发明授权

US6112520A Exhaust gas purifying system for internal combustion engine 失效
标题翻译：内燃机排气净化系统
公开(公告)号：US6112520A
公开(公告)日：2000-09-05
申请号：US146139
申请日：1998-09-03
申请人： Hideo Kaiho , Noriyuki Kishi , Shinichi Kikuchi , Tatsuya Okayama
发明人： Hideo Kaiho , Noriyuki Kishi , Shinichi Kikuchi , Tatsuya Okayama
IPC分类号： F01N3/10 , B01D53/50 , B01D53/81 , B01D53/94 , B01J23/40 , F01N3/08 , F01N3/20 , F01N3/24 , F01N9/00 , F01N13/02
CPC分类号： F01N3/0835 , F01N13/009 , F01N3/0814 , F01N3/2013 , F01N2370/04 , Y02T10/22 , Y02T10/26
摘要： In an exhaust system of the internal combustion engine, there are provided, in this order from upstream, a three-way catalyst, an adsorbent-catalyst containing at least zeolite in its composition and capable of absorbing hydrocarbons, an electrically heated catalyst containing at least platinum in its composition, and a catalyst containing at least palladium in its composition. The electrically heated catalyst can effectively purify low boiling-point HC of paraffinic hydrocarbon which has been desorbed from the adsorbent-catalyst after about 20 seconds from the start of the engine. On the other hand, the catalyst can effectively purify high boiling-point HC of aromatic hydrocarbon which has been desorbed from the adsorbent-catalyst after about 80 seconds from the start of the engine. When the catalyst is an electrically heated catalyst, it is energized after the energization of the other electrically heated catalyst is ended and the supply of electric power can hence be minimized.
摘要翻译：在内燃机的排气系统中，从上游开始依次提供三元催化剂，至少含有沸石组成并能够吸收烃的吸附剂催化剂，至少含有电催化剂其组成中的铂，以及其组成中至少含有钯的催化剂。电加热的催化剂可以有效地净化从发动机启动约20秒后从吸附剂催化剂脱附的链烷烃的低沸点HC。另一方面，催化剂可以有效地净化从发动机开始起约80秒后从吸附剂催化剂脱附的芳烃的高沸点HC。当催化剂是电加热的催化剂时，在另一个电加热的催化剂的通电结束之后，其被激励，因此可以使电力的供应最小化。

2. 发明授权

US6155044A Exhaust gas purifying system for internal combustion engine 失效
标题翻译：内燃机排气净化系统
公开(公告)号：US6155044A
公开(公告)日：2000-12-05
申请号：US146552
申请日：1998-09-03
申请人： Hideo Kaiho , Noriyuki Kishi , Shinichi Kikuchi , Mitsuo Wakabayashi
发明人： Hideo Kaiho , Noriyuki Kishi , Shinichi Kikuchi , Mitsuo Wakabayashi
IPC分类号： B01D53/86 , F01N1/08 , F01N3/02 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/24 , F01N13/08 , F01N3/00
CPC分类号： F01N3/055 , F01N1/08 , F01N13/009 , F01N3/0814 , F01N3/2013 , F01N11/00 , Y02T10/22 , Y02T10/26
摘要： It is an object of the present invention to provide an exhaust gas purifying system for an internal combustion engine in which the rise of the temperature of an HC adsorbent is adequately retarded to improve the purification of HC at the start of the engine.In an exhaust system of the internal combustion engine, there are provided a three-way catalyst provided in the downstream side of an exhaust manifold, an adsorbent-catalyst provided under the floor of an automotive vehicle and containing at least zeolite in its composition, and a catalyst provided in the downstream side of the adsorbent-catalyst. In particular, the heat capacity of an exhaust gas passage which connects between the three-way catalyst and the adsorbent-catalyst is increased greater than the heat capacity of the exhaust manifold. More particularly, the thickness of a wall of the exhaust gas passage is greater than that of the exhaust manifold. A substrate, a partition, or a muffler is provided across the exhaust gas passage. The exhaust tube in the exhaust gas passage has at least an inner side or an outer side thereof shaped to a convex and concave configuration.
摘要翻译：本发明的目的是提供一种用于内燃机的排气净化系统，其中HC吸附剂的温度升高被充分地延迟以改善在发动机起动时HC的净化。在内燃机的排气系统中，设置有设置在排气歧管的下游侧的三元催化剂，设置在机动车辆的底板下方的吸附催化剂，并且至少在其组成中含有沸石，提供在吸附剂 - 催化剂的下游侧的催化剂。特别地，连接在三元催化剂和吸附剂 - 催化剂之间的废气通道的热容量比排气歧管的热容增加。更具体地，排气通道的壁的厚度大于排气歧管的壁厚。在废气通道两端设置基板，隔板或消音器。废气通道中的排气管至少具有形成为凸形和凹形构造的内侧或外侧。

3. 发明授权

US5953912A Exhaust manifold of a multi-cylinder internal combustion engine 失效
标题翻译：多缸内燃机的排气歧管
公开(公告)号：US5953912A
公开(公告)日：1999-09-21
申请号：US925066
申请日：1997-09-08
申请人： Hideo Kaiho , Kouichi Fujimori , Hiroshi Hashimoto , Takashi Komatsuda , Kazuo Ishii
发明人： Hideo Kaiho , Kouichi Fujimori , Hiroshi Hashimoto , Takashi Komatsuda , Kazuo Ishii
IPC分类号： F01N3/02 , F01N13/10 , F01N7/10
CPC分类号： F01N13/102 , F01N2310/14 , F01N3/02
摘要： A heat-insulating, light and vibration-proof exhaust manifold for a multi-cylinder internal combustion engine is provided. The exhaust manifold comprises an upper stream flange, a lower stream flange, four manifold pipes at an upper stream, a manifold chamber (gathering section) at a lower stream and a manifold case of a plate metal covering the manifold pipes and the manifold chamber. The manifold pipes have upper stream ends to be connected to exhaust ports of the internal combustion engine through the upper stream flange and lower stream ends gathering in the manifold chamber. Upper stream ends of the manifold pipes and the manifold case are welded to the upper stream flange, and lower stream ends of the manifold chamber and the manifold case are welded to the lower stream flange. The manifold pipe and the manifold chamber can slide relatively at a slide portion which is maintained by pressing the manifold chamber and the manifold case against the manifold pipe.
摘要翻译：提供了一种用于多缸内燃机的隔热，防光和防振的排气歧管。排气歧管包括上流法兰，下流法兰，上流中的四个歧管管，下流处的歧管腔（聚集部）和覆盖歧管管和歧管腔的板金属的歧管壳。歧管具有通过上流法兰连接到内燃机的排气口的上流端，并且聚集在歧管腔中的下流端。歧管和歧管外壳的上游端部焊接到上流法兰上，并且歧管腔室和歧管壳体的下游端部焊接到下流法兰上。歧管管道和歧管腔室可以在通过将歧管腔室和歧管壳体压靠在歧管管道上而保持的滑动部分处相对滑动。

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