公开(公告)号：US5983872A

公开(公告)日：1999-11-16

申请号：US946421

申请日：1997-10-07

申请人： Takeshi Ito ,  Tosiharu Hanajima

发明人： Takeshi Ito ,  Tosiharu Hanajima

IPC分类号： F02B27/02 ,  F02B29/00 ,  F02B29/02 ,  F02D21/08 ,  F02F1/42 ,  F02M25/07 ,  F02M35/10 ,  F02M47/08

CPC分类号： F02D21/08 ,  F02B27/0215 ,  F02B27/0236 ,  F02B27/0294 ,  F02B29/00 ,  F02F1/4214 ,  F02M26/01 ,  F02M26/63 ,  Y02T10/146

摘要： An intake system for an engine is disclosed. The intake system is arranged to selectively provide exhaust gas recirculation for improving emission quality. The engine has at least one combustion chamber and an exhaust valve controlled exhaust passage leading from the combustion chamber for routing exhaust therefrom. The intake system includes an intake passage leading to the combustion chamber, an intake valve arranged to control the flow of air into the combustion chamber and a throttle valve positioned in the intake passage upstream of the intake valve. A mechanism is provided for changing the volume of the intake passage between the throttle valve and intake valve for selectively inducing exhaust gas recirculation during an opening overlap of the exhaust and intake valves.

摘要翻译： 公开了一种用于发动机的进气系统。 进气系统被布置成选择性地提供废气再循环以改善排放质量。 发动机具有至少一个燃烧室和从燃烧室引导的排气门控制的排气通道，用于从其排出废气。 进气系统包括通向燃烧室的进气通道，设置成控制进入燃烧室的空气流的进气阀和位于进气门上游的进气通道中的节流阀。 提供一种用于改变节流阀和进气门之间的进气通道的体积的机构，用于在排气和进气门的打开重叠期间选择性地引起排气再循环。