-
公开(公告)号：US20140237991A1
公开(公告)日：2014-08-28
申请号：US14345926
申请日：2012-11-06
IPC分类号： F01N13/08
CPC分类号： F01N13/08 , F01N13/00 , F01N13/008 , F01N13/10 , F01N2260/16 , F01N2470/20 , F01N2470/30 , F02D13/0261 , F02D35/00 , F02D41/1439 , F02D41/1454 , Y02T10/18
摘要： An exhaust apparatus for a multi-cylinder engine which is capable of suppressing deterioration in ejector effect with a simple configuration comprises: a plurality of independent exhaust ducts each having an upstream end connected to an exhaust port of one cylinder or exhaust ports of two or more cylinders which are non-successive in terms of exhaust order; and a merged portion configured to allow exhaust gas passing through each of the independent exhaust ducts to flow thereinto and formed to be gradually reduced in diameter toward a downstream side in an exhaust gas flow direction. The independent exhaust ducts are connected to an upstream end of the merged portion in such a manner that downstream ends thereof are bundled together. An O2 sensor is provided in the merged portion or a portion of an exhaust duct line downstream of the merged portion, to partially block an exhaust gas flow passage.
摘要翻译： 一种能够以简单的结构抑制喷射器效果的劣化的多气缸发动机的排气装置，其特征在于，具有：多个独立的排气管，其各自具有与一个气缸的排气口连接的上游侧或两个以上的排气口 在排气顺序上不连续的气缸; 以及被配置为允许通过每个独立排气管道的废气流入其中并且形成为在废气流动方向上朝向下游侧逐渐减小的合流部分。 独立的排气管以其下游端捆扎在一起的方式连接到合流部的上游端。 在合流部的下游侧的合流部或排气管路的一部分设置有O2传感器，以部分地阻止排气流路。
-
公开(公告)号：US09255503B2
公开(公告)日：2016-02-09
申请号：US14346940
申请日：2012-11-27
发明人： Takamasa Matsumoto , Mitsuo Nakamura , Mikihito Fujii , Nobuhiro Soumiyou , Shunki Okazaki , Yoshito Wakabayashi
IPC分类号： F01N13/10 , F01N3/00 , F01N5/00 , F01N13/02 , F02B27/04 , F02D13/02 , F02B27/00 , F01N13/18 , F01N13/00 , F01N3/28
CPC分类号： F01N3/00 , F01N3/2892 , F01N5/00 , F01N13/0093 , F01N13/02 , F01N13/10 , F01N13/1805 , F01N2240/20 , F01N2260/06 , F01N2260/14 , F01N2340/02 , F01N2470/20 , F01N2470/30 , F01N2900/08 , F02B27/00 , F02B27/04 , F02D13/02 , F02D13/0261 , Y02T10/146 , Y02T10/16 , Y02T10/18
摘要： An exhaust device includes a plurality of independent exhaust passages connected to an exhaust port of one cylinder or a plurality of cylinders that are non-sequential in exhaust order, and a mixing pipe into which exhaust that has passed through the respective independent exhaust passages flows. The downstream ends of the respective independent exhaust passages are connected in a bundled form to the upstream end of the mixing pipe. A cavity expansion chamber is disposed in an exhaust passage downstream from the mixing pipe. The cavity expansion chamber is disposed in a position (at a distance L2) such that, in the intermediate speed range, a negative pressure wave generated due to an exhaust pressure wave generated by opening an exhaust valve being reflected by the cavity expansion chamber reaches the exhaust port during an overlap period of the exhaust valve and an intake valve of the cylinder.
摘要翻译： 排气装置包括多个独立的排气通道，其连接到一个气缸的排气口或排气顺序不连续的多个气缸，以及混合管，排气通过各独立的排气通道流动。 各自独立排气通道的下游端以捆扎的形式连接到混合管的上游端。 空腔膨胀室设置在混合管下游的排气通道中。 空腔膨胀室设置在距离L2的位置，使得在中间速度范围内，由于通过打开由腔体膨胀室反射的排气阀而产生的排气压力波而产生的负压波达到 在排气门的重叠期间和气缸的进气门之间排气口。
-
公开(公告)号：US09140173B2
公开(公告)日：2015-09-22
申请号：US14345926
申请日：2012-11-06
CPC分类号： F01N13/08 , F01N13/00 , F01N13/008 , F01N13/10 , F01N2260/16 , F01N2470/20 , F01N2470/30 , F02D13/0261 , F02D35/00 , F02D41/1439 , F02D41/1454 , Y02T10/18
摘要： An exhaust apparatus for a multi-cylinder engine which is capable of suppressing deterioration in ejector effect with a simple configuration comprises: a plurality of independent exhaust ducts each having an upstream end connected to an exhaust port of one cylinder or exhaust ports of two or more cylinders which are non-successive in terms of exhaust order; and a merged portion configured to allow exhaust gas passing through each of the independent exhaust ducts to flow thereinto and formed to be gradually reduced in diameter toward a downstream side in an exhaust gas flow direction. The independent exhaust ducts are connected to an upstream end of the merged portion in such a manner that downstream ends thereof are bundled together. An O2 sensor is provided in the merged portion or a portion of an exhaust duct line downstream of the merged portion, to partially block an exhaust gas flow passage.
摘要翻译： 一种能够以简单的结构抑制喷射器效果的劣化的多气缸发动机的排气装置，其特征在于，具有：多个独立的排气管，其各自具有与一个气缸的排气口连接的上游侧或两个以上的排气口 在排气顺序上不连续的气缸; 以及被配置为允许通过每个独立排气管道的废气流入其中并且形成为在废气流动方向上朝向下游侧逐渐减小的合流部分。 独立的排气管以其下游端捆扎在一起的方式连接到合流部的上游端。 在合流部的下游侧的合流部或排气管路的一部分设置有O2传感器，以部分地阻止排气流路。
-
公开(公告)号：US20140250874A1
公开(公告)日：2014-09-11
申请号：US14346940
申请日：2012-11-27
发明人： Takamasa Matsumoto , Mitsuo Nakamura , Mikihito Fujii , Nobuhiro Soumiyou , Shunki Okazaki , Yoshito Wakabayashi
IPC分类号： F01N3/00
CPC分类号： F01N3/00 , F01N3/2892 , F01N5/00 , F01N13/0093 , F01N13/02 , F01N13/10 , F01N13/1805 , F01N2240/20 , F01N2260/06 , F01N2260/14 , F01N2340/02 , F01N2470/20 , F01N2470/30 , F01N2900/08 , F02B27/00 , F02B27/04 , F02D13/02 , F02D13/0261 , Y02T10/146 , Y02T10/16 , Y02T10/18
摘要： An exhaust device includes a plurality of independent exhaust passages connected to an exhaust port of one cylinder or a plurality of cylinders that are non-sequential in exhaust order, and a mixing pipe into which exhaust that has passed through the respective independent exhaust passages flows. The downstream ends of the respective independent exhaust passages are connected in a bundled form to the upstream end of the mixing pipe. A cavity expansion chamber is disposed in an exhaust passage downstream from the mixing pipe. The cavity expansion chamber is disposed in a position (at a distance L2) such that, in the intermediate speed range, a negative pressure wave generated due to an exhaust pressure wave generated by opening an exhaust valve being reflected by the cavity expansion chamber reaches the exhaust port during an overlap period of the exhaust valve and an intake valve of the cylinder.
摘要翻译： 排气装置包括多个独立的排气通道，其连接到一个气缸的排气口或排气顺序不连续的多个气缸，以及混合管，排气通过各独立的排气通道流动。 各自独立排气通道的下游端以捆扎的形式连接到混合管的上游端。 空腔膨胀室设置在混合管下游的排气通道中。 空腔膨胀室设置在距离L2的位置，使得在中间速度范围内，由于通过打开由腔体膨胀室反射的排气阀而产生的排气压力波而产生的负压波达到 在排气门的重叠期间和气缸的进气门之间排气口。
-
-
-
搜索结果
4 条记录 (耗时 0.022 秒)
