公开(公告)号：US20140223903A1

公开(公告)日：2014-08-14

申请号：US13869323

申请日：2013-04-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward J. Keating

IPC: F02M25/07

CPC classification number: F02M26/19 ,  F02M26/43 ,  Y02T10/121

Abstract: An engine assembly includes an intake assembly, an internal combustion engine defining a plurality of cylinders and configured to combust a fuel and produce exhaust gas, and an exhaust assembly in fluid communication with a first subset of the plurality of cylinders. Each of the plurality of cylinders are provided in fluid communication with the intake assembly. The exhaust assembly is provided in fluid communication with a first subset of the plurality of cylinders, and a dedicated exhaust gas recirculation system in fluid communication with both a second subset of the plurality of cylinders and with the intake assembly. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the second subset of the plurality of cylinders to the intake assembly. Finally, the engine assembly includes a turbocharger having a variable geometry turbine in fluid communication with the exhaust assembly.

Abstract translation: 发动机组件包括进气组件，限定多个气缸并被配置为燃烧燃料并产生废气的内燃机，以及与所述多个气缸的第一子系统流体连通的排气组件。 多个气缸中的每一个与进气组件流体连通地设置。 排气组件设置成与多个气缸的第一子系统流体连通，以及与多个气缸的第二子系统和进气组件流体连通的专用废气再循环系统。 专用排气再循环系统被配置为将所有废气从多个气缸的第二子集路由到进气组件。 最后，发动机组件包括具有与排气组件流体连通的可变几何涡轮机的涡轮增压器。