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1. 发明申请

WO2009068976A2 INTAKE MIXTURE INTRODUCING APPARATUS 审中-公开
标题翻译：入口混合物引入装置
公开(公告)号：WO2009068976A2
公开(公告)日：2009-06-04
申请号：PCT/IB2008/003264
申请日：2008-11-28
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , NAKAWATASE, Akira , NAGASAKI, Taketo , WATANABE, Junji
发明人： NAKAWATASE, Akira , NAGASAKI, Taketo , WATANABE, Junji
IPC分类号： F02M25/07
CPC分类号： F02M35/10118 , F02B75/22 , F02M26/19 , F02M26/44 , F02M35/10104 , F02M35/10222 , F02M35/116 , Y02T10/14
摘要： High pressure regions (31H to 35H) and low pressure regions (31L to 34L) are created based on the exhaust gas flow at curves in an EGR pipe (30), thereby enabling the exhaust gas pressure at inlets (21b to 26b) of gas introduction passages (21a to 26a) to be adjusted. Accordingly, regardless of the number of cylinders or whether the lengths of the flow paths of the EGR pipe (30) are the same, the exhaust pressure at the inlets (21b to 26b) of the gas introduction passages (21a to 26a) can be appropriately adjusted so any difference in pressure of exhaust gas introduced into branch pipes (21 to 26) can be reduced. In this way, the EGR rates of the cylinders can be made closer or the same such that stable combustion can be achieved, thus enabling stable engine operation to be maintained. The EGR pipe (30) is arranged weaving closely between the branch pipes (21 to 26) so space efficiency can be improved and a sufficient amount of exhaust gas can be introduced evenly into the cylinders.
摘要翻译：基于EGR管道（30）中的曲线处的废气流量来产生高压区域（31H至35H）和低压区域（31L至34L），由此使废气压力为气体引入通道（21a至26a）的入口（21b至26b）被调节。因此，无论气缸的数量或EGR管道（30）的流路的长度是否相同，气体导入通路（21a〜26a）的入口（21b〜26b）的排气压力都可以适当地调整，因此能够减少导入分支管（21〜26）的排气的压力差。这样，汽缸的EGR率可以更接近或相同，从而可以实现稳定燃烧，从而能够保持稳定的发动机运转。由于EGR管30紧密配置在支管21〜26之间，所以能够提高空间利用率，并且能够将足够量的排气均匀地导入到气缸内。

2. 发明申请

WO2009068976A3 INTAKE MIXTURE INTRODUCING APPARATUS 审中-公开
标题翻译：进口混合介绍设备
公开(公告)号：WO2009068976A3
公开(公告)日：2009-08-06
申请号：PCT/IB2008003264
申请日：2008-11-28
申请人： TOYOTA MOTOR CO LTD , NAKAWATASE AKIRA , NAGASAKI TAKETO , WATANABE JUNJI
发明人： NAKAWATASE AKIRA , NAGASAKI TAKETO , WATANABE JUNJI
IPC分类号： F02M25/07 , F02M35/116
CPC分类号： F02M35/10118 , F02B75/22 , F02M26/19 , F02M26/44 , F02M35/10104 , F02M35/10222 , F02M35/116 , Y02T10/14
摘要： High pressure regions (31H to 35H) and low pressure regions (31L to 34L) are created based on the exhaust gas flow at curves in an EGR pipe (30), thereby enabling the exhaust gas pressure at inlets (21b to 26b) of gas introduction passages (21a to 26a) to be adjusted. Accordingly, regardless of the number of cylinders or whether the lengths of the flow paths of the EGR pipe (30) are the same, the exhaust pressure at the inlets (21b to 26b) of the gas introduction passages (21a to 26a) can be appropriately adjusted so any difference in pressure of exhaust gas introduced into branch pipes (21 to 26) can be reduced. In this way, the EGR rates of the cylinders can be made closer or the same such that stable combustion can be achieved, thus enabling stable engine operation to be maintained. The EGR pipe (30) is arranged weaving closely between the branch pipes (21 to 26) so space efficiency can be improved and a sufficient amount of exhaust gas can be introduced evenly into the cylinders.
摘要翻译：基于EGR管（30）中的曲线处的废气流量，产生高压区域（31H〜35H）和低压区域（31L〜34L），从而能够使气体入口（21b〜26b）的排气压力导入通路（21a〜26a）被调整。因此，无论气缸的数量还是EGR管30的流路长度是否相同，气体导入通路（21a〜26a）的入口（21b〜26b）的排气压力可以是适当地调节，从而可以减少引入分支管（21至26）的废气的压力差。以这种方式，可以使气缸的EGR率更接近或相同，使得可以实现稳定的燃烧，从而能够保持发动机的稳定运行。 EGR管（30）布置在分支管（21至26）之间，因此能够提高空间效率并且可以将足够量的废气均匀地引入到气缸中。

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