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Internal combustion engine having dual EGR loops (dedicated EGR loop and low pressure EGR loop) and dual cylinder intake ports

机译:具有双EGR回路(专用EGR回路和低压EGR回路)和双气缸进气口的内燃机

摘要

A dual EGR loop exhaust gas recirculation (EGR) system for an internal combustion engine. The engine has both a dedicated EGR loop and a low pressure EGR loop. This means that one or more engine cylinders is operable as a dedicated EGR cylinder, such that all of its exhaust is recirculated via the dedicated EGR loop. The other cylinders are operable as main cylinders having two intake ports, such that each main cylinder may receive a mixture of fresh air and dedicated EGR through one intake port and a mixture of fresh air and low pressure EGR through the other intake port. A control unit controls this dual loop EGR system to either provide EGR only from the dedicated EGR loop or to also provide additional EGR from the low pressure EGR loop.
机译:用于内燃机的双EGR回路排气再循环(EGR)系统。发动机同时具有专用EGR回路和低压EGR回路。这意味着一个或多个发动机汽缸可作为专用EGR汽缸运行,因此其所有排气都通过专用EGR回路再循环。其他汽缸可作为具有两个进气口的主汽缸操作,从而每个主汽缸可通过一个进气口接收新鲜空气和专用EGR的混合物,并通过另一个进气口接收新鲜空气和低压EGR的混合物。控制单元控制该双回路EGR系统以仅从专用EGR回路提供EGR或从低压EGR回路提供附加的EGR。

著录项

  • 公开/公告号US9200599B2

    专利类型

  • 公开/公告日2015-12-01

    原文格式PDF

  • 申请/专利权人 SOUTHWEST RESEARCH INSTITUTE;

    申请/专利号US201313862797

  • 发明设计人 RAPHAEL GUKELBERGER;JESS W. GINGRICH;

    申请日2013-04-15

  • 分类号F02B47/08;F02M25/07;

  • 国家 US

  • 入库时间 2022-08-21 14:28:32

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