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1. 发明授权

US09551248B2 Method and apparatus to recover exhaust gas recirculation coolers 有权
标题翻译：回收废气再循环冷却器的方法和装置
公开(公告)号：US09551248B2
公开(公告)日：2017-01-24
申请号：US13926059
申请日：2013-06-25
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Alok Warey , Patrick G. Szymkowicz , Sandro R. Balestrino , Richard C. Peterson
IPC分类号： F01N3/08
CPC分类号： F01N3/08 , F02M26/05 , F02M26/28 , F02M26/35
摘要： An apparatus for mitigating fouling within a heat exchanger device includes an internal combustion engine and an external exhaust gas recirculation (EGR) circuit. The internal combustion engine is fluidly coupled to an intake gas manifold upstream of the engine and an exhaust gas manifold downstream of the engine. The EGR circuit is fluidly coupled to the exhaust gas manifold at a first end and is configured to selectively route back exhaust gas flow as EGR flow into the intake gas manifold at a second end. The EGR circuit includes the heat exchanger device for cooling the EGR flow prior to entering the intake manifold and a surface deposit removing device configured to remove surface deposit build-up from within the heat exchanger device when the surface deposit removing device is activated.
摘要翻译：用于减轻热交换器装置内的结垢的装置包括内燃机和外部排气再循环（EGR）电路。内燃机流体地联接到发动机上游的进气歧管和发动机下游的排气歧管。 EGR电路在第一端处流体地联接到排气歧管，并且被配置为在第二端将EGR流选择性地回送到进气歧管中作为EGR流。 EGR回路包括用于在进入进气歧管之前冷却EGR流的热交换器装置和当表面沉积物去除装置被激活时构造成从热交换器装置内去除表面沉积物积聚的表面沉积物去除装置。

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