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21. 发明授权

US5205265A Exhaust gas recirculation system 失效
标题翻译：废气再循环系统
公开(公告)号：US5205265A
公开(公告)日：1993-04-27
申请号：US858999
申请日：1992-03-30
申请人： Kenji Kashiyama , Kazumasa Nomura , Noriyuki Iwata , Naoyuki Yamagata
发明人： Kenji Kashiyama , Kazumasa Nomura , Noriyuki Iwata , Naoyuki Yamagata
IPC分类号： F01M13/00 , F02B75/22 , F02D21/08 , F02M25/06 , F02M25/07
CPC分类号： F02D21/08 , F02M26/03 , F02M26/25 , F02M26/35 , F02M26/36 , F02M26/39 , F02M26/44 , F02B75/22 , F02M2026/002 , F02M25/06 , F02M26/71
摘要： An exhaust gas recirculation system of an engine equipped with a supercharger has an exhaust gas circulation passage for circulating exhaust gas into an intake system from an exhaust system, and a return passage for returning exhaust gas introduced into the exhaust gas circulation passage to the exhaust system. The exhaust gas circulation passage is made available to the exhaust gas when the engine operates within a specified area of engine operating conditions in which supercharging is to be effected. The return passage is made available to the exhaust gas when the engine operates within an area, other than the specified area, of engine operating conditions.
摘要翻译：配备有增压器的发动机的排气再循环系统具有排气循环通路，用于将排气从排气系统循环到进气系统中，以及返回通道，用于将排出气体循环通道中引入的废气返回到排气系统。当发动机在要进行增压的发动机运行条件的指定区域内运行时，废气循环通道可用于废气。当发动机在发动机工作条件以外的指定区域内运行时，返回通道可用于废气。

22. 发明授权

US08671670B2 Exhaust system of multi-cylinder engine 有权
标题翻译：多缸发动机排气系统
公开(公告)号：US08671670B2
公开(公告)日：2014-03-18
申请号：US13049853
申请日：2011-03-16
申请人： Naoyuki Yamagata , Akira Kageyama , Takeshi Nagasawa
发明人： Naoyuki Yamagata , Akira Kageyama , Takeshi Nagasawa
IPC分类号： F01N1/00
CPC分类号： F02D9/04 , F02D13/0203 , Y02T10/18
摘要： Provided is an exhaust system of a multi-cylinder engine capable of increasing the air-intake and thereby increasing the engine output with a simple configuration. The exhaust system is provided with low velocity-side passages 54, high velocity-side passages 53, a low velocity-side collection part 56, a high velocity-side collection part 57, and a flow passage area variable valve 58 capable of changing the flow passage area of the respective high velocity-side passages 53. The relationship of a diameter a1 of a true circle with a same area as the flow passage area of the downstream end of the low velocity-side passages 54, a diameter D1 of a true circle with a same area as the flow passage area of the downstream end of the low velocity-side collection part 56, a diameter a2 of a true circle with a same area as the flow passage area of the downstream end of the high velocity-side passages 53, and a diameter D2 of a true circle with a same area as the flow passage area of the downstream end of the high velocity-side collection part 57 is made to be a1/D1≧a2/D2. In a low velocity region R1, an exhaust valve 20 is opened during the overlap period of an intake valve 19 and the exhaust valve 20 and the flow passage area of the high velocity-side passages 53 is narrowed, and, in a high velocity region R3, the flow passage area of the high velocity-side passages 53 is set to be a maximum area.
摘要翻译：提供了一种能够以简单的结构增加进气量并从而增加发动机输出的多气缸发动机的排气系统。排气系统设有低速侧通路54，高速侧通路53，低速侧收集部56，高速侧收集部57以及流路面积可变阀58，能够改变各个高速侧通路53的流路面积。与低速侧通路54的下游端的流路面积相同面积的真圆的直径a1的关系，具有与低速侧收集部56的下游端的流路面积相同面积的真圆，具有与高速侧收集部56的下游端的流路面积相同面积的真圆的直径a2，侧通道53和具有与高速侧收集部57的下游端的流路面积相同面积的真圆的直径D2为a1 / D1> = a2 / D2。在低速区域R1中，在进气门19和排气门20的重叠期间，排气门20打开，高速侧通路53的流路面积变窄，在高速区域 R3，高速侧通路53的流路面积被设定为最大面积。

23. 发明授权

US5213071A Support structure for cam shafts 失效
标题翻译：凸轮轴的支撑结构
公开(公告)号：US5213071A
公开(公告)日：1993-05-25
申请号：US947638
申请日：1992-09-21
申请人： Noriyuki Iwata , Naoyuki Yamagata , Tatsuya Uesugi , Taiji Matsubara
发明人： Noriyuki Iwata , Naoyuki Yamagata , Tatsuya Uesugi , Taiji Matsubara
IPC分类号： F01L1/04 , F01L1/053 , F01L1/26 , F02F1/24 , F02F1/42
CPC分类号： F01L1/0532 , F01L1/26 , F01L2001/0537 , F02B2275/18 , F02F1/4214 , F02F2001/245 , F02F2007/0063
摘要： The support structure for cam shafts including an intake cam shaft and an exhaust cam shaft, a pair of intake cams per a cylinder formed side by side on the intake cam shaft, a pair of exhaust cams per a cylinder formed side by side on the exhaust cam shaft and having longer interval therebetween than that of the intake cams, a cam cap forming an upper portion of the support structure for the cam shafts and an upper wall portion of a plug hole for inserting the ignition plug, a cam carrier forming a lower portion of the support structure for the cam shafts and a lower wall portion of the plug hole, and fasteners for fastening the cam cap to an engine block. The fasteners are disposed both at longitudinally opposite sides of the pair of intake cams and between the pair of the exhaust cams.
摘要翻译：包括进气凸轮轴和排气凸轮轴的凸轮轴的支撑结构，在进气凸轮轴上并排形成的每个气缸的一对进气凸轮，在排气口上并排形成的一对排气凸轮凸轮轴，并且具有比进气凸轮更长的间隔;形成用于凸轮轴的支撑结构的上部的凸轮盖和用于插入火花塞的插塞孔的上壁部分，形成下部的凸轮架用于凸轮轴的支撑结构的一部分和插塞孔的下壁部分，以及用于将凸轮盖紧固到发动机缸体的紧固件。紧固件都布置在一对进气凸轮的纵向相对侧并且在一对排气凸轮之间。

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