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公开(公告)号：US4222355A
公开(公告)日：1980-09-16
申请号：US958722
申请日：1978-11-08
申请人： Tatsumi Yamasaki , Isamu Ota , Yutaka Hasegawa , Heisuke Yamamoto , Noriaki Kawai , Toshihito Abe
发明人： Tatsumi Yamasaki , Isamu Ota , Yutaka Hasegawa , Heisuke Yamamoto , Noriaki Kawai , Toshihito Abe
摘要： Disclosed herein is an internal combustion engine provided with an exhaust gas recirculation system of so-called back pressure control type. The exhaust gas recirculation system is provided with a vacuum line connecting a so-called EGR port with a vacuum operated flow control valve, and a modulator valve having a control chamber selectively opened to the vacuum line in response to the pressure of recirculated exhaust gas for controlling vacuum signal level of the flow control valve. The control chamber of the modulator is connected to another vacuum signal port located slightly above the EGR port.
摘要翻译： 本发明公开了一种具有所谓背压控制型排气再循环系统的内燃机。 排气再循环系统设置有将所谓的EGR端口与真空操作的流量控制阀连接的真空管线，以及调节阀，其具有响应于再循环废气的压力而选择性地打开到真空管线的控制室， 控制流量控制阀的真空信号电平。 调制器的控制室连接到位于EGR端口稍稍上方的另一个真空信号端口。
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公开(公告)号：US4222357A
公开(公告)日：1980-09-16
申请号：US962929
申请日：1978-11-22
申请人： Isamu Ota , Toshihito Abe
发明人： Isamu Ota , Toshihito Abe
CPC分类号： F02M26/56
摘要： Disclosed herein is a back pressure control type EGR system for an internal combustion engine, wherein a vacuum modulator has an air introducing chamber which is selectively opened, in accordance with the pressure of recirculated exhaust gas, to a vacuum line connecting an EGR port with a vacuum operated flow control valve. The air introducing chamber is further connected to another vacuum port formed slightly above the EGR port via another vacuum line. Switching valve devices responsive to the temperature of the engine are located on the vacuum lines for stopping the EGR operation when the engine is cold.
摘要翻译： 本文公开了一种用于内燃机的背压控制型EGR系统，其中真空调节器具有根据再循环废气的压力选择性地打开的空气引入室，连接到将EGR端口与 真空操作流量控制阀。 空气引入室还通过另一个真空管线连接到略微形成在EGR端口上方的另一个真空端口。 当发动机冷时，响应于发动机温度的切换阀装置位于真空管线上，用于停止EGR操作。
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