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公开(公告)号：US10598074B2
公开(公告)日：2020-03-24
申请号：US15761206
申请日：2016-11-09
发明人： Jiro Kato , Tatsuya Koga , Shinji Sumi , Haruna Yanagida , Norihisa Murata
摘要： Provided is an exhaust device connected to an engine body. The exhaust device includes a plurality of independent exhaust pipes, each of which has a circular cross section, and which are connected to exhaust ports of cylinders of the engine body; and a mixing pipe having a circular cross section, connected to downstream ends of the independent exhaust pipes, and through which exhaust gas that has passed through the independent exhaust pipes flows in. The independent exhaust pipes are connected to an upstream end of the mixing pipe in such a manner that parts of internal spaces of the circular cross sections overlap each other in a predetermined section from the downstream ends of the independent exhaust pipes toward upstream, and a ratio of overlapping portions of the circular cross sections gradually increases from upstream toward downstream.
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公开(公告)号：US09611777B2
公开(公告)日：2017-04-04
申请号：US14825051
申请日：2015-08-12
发明人： Jiro Kato , Tatsuya Koga , Shinji Sumi , Haruna Yanagida , Norihisa Murata
CPC分类号： F01N13/10 , F01N3/2066 , F01N3/28 , F01N13/141 , Y02A50/2322
摘要： An exhaust device of a multi-cylinder engine which controls local introduction of exhaust gas to a catalyst device and a variation between cylinders of introduction positions of the exhaust gas to the catalyst device is provided. The exhaust device is arranged so that the cylinders extend in a vehicle width direction at a vehicle front part, and an exhaust line is arranged so as to extend rearward from a rear of the engine, wherein, in sequence from an upstream side of an exhaust gas flow, four independent exhaust pipes corresponding to the cylinders, collecting pipes which collect all independent exhaust pipes, and the catalyst device are provided. The single exhaust pipe includes two bending parts and a downstream part thereof is connected so that the exhaust gas is introduced from a direction that is diagonally lateral to an inlet part of the catalyst device.
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公开(公告)号：US20160084139A1
公开(公告)日：2016-03-24
申请号：US14825051
申请日：2015-08-12
发明人： Jiro Kato , Tatsuya Koga , Shinji Sumi , Haruna Yanagida , Norihisa Murata
CPC分类号： F01N13/10 , F01N3/2066 , F01N3/28 , F01N13/141 , Y02A50/2322
摘要： An exhaust device of a multi-cylinder engine which controls local introduction of exhaust gas to a catalyst device and a variation between cylinders of introduction positions of the exhaust gas to the catalyst device is provided. The exhaust device is arranged so that the cylinders extend in a vehicle width direction at a vehicle front part, and an exhaust line is arranged so as to extend rearward from a rear of the engine, wherein, in sequence from an upstream side of an exhaust gas flow, four independent exhaust pipes corresponding to the cylinders, collecting pipes which collect all independent exhaust pipes, and the catalyst device are provided. The single exhaust pipe includes two bending parts and a downstream part thereof is connected so that the exhaust gas is introduced from a direction that is diagonally lateral to an inlet part of the catalyst device.
摘要翻译： 本发明提供一种多气缸发动机的排气装置，其将排气的局部引入催化剂装置以及排气到催化装置的导入位置的气缸之间的变化。 排气装置被配置为使得气缸在车辆前部沿车辆宽度方向延伸，并且排气管线被布置成从发动机的后部向后延伸，其中，从排气的上游侧开始 气流，与气缸对应的四个独立排气管，收集所有独立排气管的收集管，以及催化装置。 单个排气管包括两个弯曲部分，并且其下游部分被连接，使得废气从对于催化剂装置的入口部分的对角线侧方向引入。
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