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1. 发明申请

US20160281633A1 INTAKE DEVICE OF ENGINE 有权
标题翻译：发动机装置
公开(公告)号：US20160281633A1
公开(公告)日：2016-09-29
申请号：US15074034
申请日：2016-03-18
申请人： Mazda Motor Corporation
发明人： Yasushi Nakahara , Yoshitaka Wada , Yohei Suzuki , Yuki Nabetani
IPC分类号： F02F1/42 , F02F1/24 , F02M35/10
CPC分类号： F02F1/4235 , F02B23/105 , F02B31/085 , F02B37/00 , F02B2023/106 , F02B2075/125 , F02B2275/48 , Y02T10/123 , Y02T10/125 , Y02T10/144 , Y02T10/146
摘要： An intake device of an engine having cylinders is provided. The intake device includes a cylinder head formed with two intake ports per cylinder, and a forced induction system. One of the two intake ports is designed to have a smaller passage cross-sectional area at a throat portion thereof than that of the other intake port, and to cause a strength of a tumble flow strength of intake air formed within a combustion chamber to be stronger when a flow of the intake air into the combustion chamber is assumed to be caused only from the one of the two intake ports, than only from the other intake port. A tumble ratio of the intake air flow within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced and flows into the combustion chamber from the two intake ports.
摘要翻译：提供具有气缸的发动机的进气装置。进气装置包括：每缸气缸形成有两个进气口的气缸盖，以及强制感应系统。两个进气口中的一个被设计成在其喉部处具有比其他进气口更小的通道横截面面积，并且使得形成在燃烧室内的进气的滚筒流动强度的强度为假设进入燃烧室的进气的流动仅仅来自两个进气口中的一个而不是仅从另一个进气口引起的情况更强。当进气被强制诱导并从两个进气口流入燃烧室时，燃烧室内的进气流量的转速为预定值或更大。

2. 发明授权

US09797336B2 Intake device of engine 有权
公开(公告)号：US09797336B2
公开(公告)日：2017-10-24
申请号：US15074034
申请日：2016-03-18
申请人： Mazda Motor Corporation
发明人： Yasushi Nakahara , Yoshitaka Wada , Yohei Suzuki , Yuki Nabetani
IPC分类号： F02F1/42 , F02B23/10 , F02B31/08 , F02B37/00 , F02B75/12
CPC分类号： F02F1/4235 , F02B23/105 , F02B31/085 , F02B37/00 , F02B2023/106 , F02B2075/125 , F02B2275/48 , Y02T10/123 , Y02T10/125 , Y02T10/144 , Y02T10/146
摘要： An intake device of an engine having cylinders is provided. The intake device includes a cylinder head formed with two intake ports per cylinder, and a forced induction system. One of the two intake ports is designed to have a smaller passage cross-sectional area at a throat portion thereof than that of the other intake port, and to cause a strength of a tumble flow strength of intake air formed within a combustion chamber to be stronger when a flow of the intake air into the combustion chamber is assumed to be caused only from the one of the two intake ports, than only from the other intake port. A tumble ratio of the intake air flow within the combustion chamber is a predetermined value or greater when the intake air is forcibly induced and flows into the combustion chamber from the two intake ports.

3. 发明授权

US09388770B2 Exhaust gas recirculation system for engine 有权
标题翻译：发动机废气再循环系统
公开(公告)号：US09388770B2
公开(公告)日：2016-07-12
申请号：US14052424
申请日：2013-10-11
申请人： MAZDA MOTOR CORPORATION
发明人： Shuhei Tsujita , Einosuke Suekuni , Junji Umemura , Yuki Nabetani
IPC分类号： F02B33/44 , F02M25/07 , F02D23/00 , F02B37/00
CPC分类号： F02M26/44 , F02B37/00 , F02D23/00 , Y02T10/121 , Y02T10/144
摘要： Disclosed is an exhaust gas recirculation system for an engine (1), wherein at least a downstream sub-region of a region of an exhaust passage (33) upstream of a turbine wheel (52) is divided into two sub-passages (R1, R2) by a partition wall (20a, 30a) extending along an exhaust gas flow direction. A high-speed sub-passage (R2) in the two sub-passages (R1, R2) is equipped with an openable-closable exhaust variable valve (23). The exhaust variable valve (23) is configured to be controlled to open the high-speed sub-passage (R2) when an engine speed is equal to or greater than a reference speed, and close the high-speed sub-passage (R2) when the engine speed is less than the reference speed. An inlet (60a) of an EGR passage (60) on the side of the exhaust passage (33) is opened to the high-speed sub-passage (R2) at a position downstream of the exhaust variable valve (23).
摘要翻译：公开了一种用于发动机（1）的排气再循环系统，其中在涡轮机叶轮（52）上游的排气通道（33）的区域的至少下游子区域被分成两个子通道（R1， R2）通过沿排气流动方向延伸的分隔壁（20a，30a）。两个子通路（R1，R2）中的高速子通路（R2）配备有可开闭的排气可变阀（23）。当发动机转速等于或大于参考速度时，排气可变阀（23）被构造成被控制以打开高速子通道（R2），并且关闭高速子通道（R2）当发动机转速低于参考速度时。在排气可变阀（23）的下游侧的位置，在排气通路（33）侧的EGR通路（60）的入口（60a）向高速副通路（R2）开放。

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