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1. 发明专利

JP2013160169A Intake and exhaust apparatus of multi-cylinder engine 有权
标题翻译：多缸发动机的进气和排气装置
公开(公告)号：JP2013160169A
公开(公告)日：2013-08-19
申请号：JP2012023976
申请日：2012-02-07
申请人： Mazda Motor Corp , マツダ株式会社
发明人： WAKABAYASHI YOSHITO
IPC分类号： F02B27/00 , F02B27/04
CPC分类号： F02D13/0261 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide an intake and exhaust apparatus of a multi-cylinder engine suppressed in a drop of volumetric efficiency through each rotation range from an engine low speed range up to a high speed range.SOLUTION: In an engine low speed range, an exhaust system is adjusted and cylinders are scavenged by an ejector effect to improve volumetric efficiency, that is, torque as a result. In a middle speed range, a pipe length, a pipe diameter or capacity of an intake system from an air cleaner 3e to an intake port 17 is adjusted and intake air is supercharged by an intake resonance effect to improve volumetric efficiency, that is, torque as a result. In a high speed range, the length of an independent intake passage 3 is adjusted and intake air is supercharged by an intake inertia effect to improve volumetric efficiency, that is, torque as a result.
摘要翻译：要解决的问题：提供一种多缸发动机的进气排气装置，其通过从发动机低速范围到高速范围的每个旋转范围抑制体积效率的下降。解决方案：在发动机低速范围，调节排气系统，并通过喷射器效应清除气缸，以提高体积效率，即转矩。在中速范围中，调节从空气滤清器3e到进气口17的进气系统的管道长度，管道直径或容量，并通过进气共振效应对进气进行增压，以提高容积效率，即扭矩结果是。在高速范围内，通过进气惯性效应来调节独立进气通道3的长度，并且进气通过增压来提高容积效率，即转矩。

2. 发明专利

JP2013113224A Exhaust device for multi-cylinder engine 有权
标题翻译：多缸发动机排气装置
公开(公告)号：JP2013113224A
公开(公告)日：2013-06-10
申请号：JP2011260600
申请日：2011-11-29
申请人： Mazda Motor Corp , マツダ株式会社
发明人： MATSUMOTO TAKAMASA , NAKAMURA MITSUO , FUJII MOTOKIMI , SOMEI NOBUHIRO , OKAZAKI TOSHIKI , WAKABAYASHI YOSHITO
IPC分类号： F02D13/02 , F01N5/00 , F01N13/02 , F01N13/10 , F02B27/04
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： PROBLEM TO BE SOLVED: To provide an exhaust device for a multi-cylinder engine in which volumetric efficiency can be suppressed from being dropped in a middle-speed range.SOLUTION: An exhaust device includes: a plurality of independent exhaust passages 52 connected to an exhaust port 18 of one cylinder 12 or of each of a plurality of cylinders 12 of which the exhaust turns are not continued; and a mixing pipe 50 in which exhaust gas passing through the independent exhaust passages 52 flows. The independent exhaust passages 52 are connected to an upstream end of the mixing pipe 50 while bundling their downstream ends. A cavity enlargement chamber 8 is disposed in the exhaust passage at the downstream side rather than the mixing pipe 50. The cavity enlargement chamber 8 is disposed at a position (distance L2) where a negative pressure wave reaches the exhaust port 18 while overlapping an exhaust valve 20 and an intake valve of a present cylinder 12, the negative pressure wave being generated by reflecting in the cavity enlargement chamber 8 a pressure wave of exhaust gas generated by opening the exhaust valve 20 in a middle-speed range.
摘要翻译：要解决的问题：提供一种可以抑制体积效率在中速范围内下降的多气缸发动机的排气装置。解决方案：排气装置包括：多个独立的排气通道52，其连接到一个气缸12的排气口18或多个气缸12中的每一个，排气匝不连续; 以及混合管50，其中通过独立排气通道52的废气流动。独立排气通道52与混合管50的上游端连接，同时捆扎其下游端。空腔扩大室8设置在下游侧而不是混合管50的排气通道中。空腔扩大室8设置在负压波到达排气口18同时重叠排气口的位置（距离L2）阀20和当前气缸12的进气阀，负压波是通过在空腔扩大室8中反应在中速范围内打开排气门20而产生的排气压力波而产生的。版权所有（C）2013，JPO＆INPIT

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