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公开(公告)号:US11454198B2
公开(公告)日:2022-09-27
申请号:US17034092
申请日:2020-09-28
摘要: Methods and systems are provided for to methods and systems for distributing exhaust gas to a turbine, a turbocharger bypass, and an exhaust gas recirculation (EGR) line via a valve. In one example, a method may include selectively flowing exhaust gas, via a valve coupled to an exhaust passage, to one or more of an exhaust gas recirculation (EGR) passage, an exhaust turbine, and an exhaust catalyst via a bypass passage without flowing through the exhaust turbine based on engine operating conditions.
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公开(公告)号:US20220099052A1
公开(公告)日:2022-03-31
申请号:US17034092
申请日:2020-09-28
摘要: Methods and systems are provided for to methods and systems for distributing exhaust gas to a turbine, a turbocharger bypass, and an exhaust gas recirculation (EGR) line via a valve. In one example, a method may include selectively flowing exhaust gas, via a valve coupled to an exhaust passage, to one or more of an exhaust gas recirculation (EGR) passage, an exhaust turbine, and an exhaust catalyst via a bypass passage without flowing through the exhaust turbine based on engine operating conditions.
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公开(公告)号:US11480122B1
公开(公告)日:2022-10-25
申请号:US17303212
申请日:2021-05-24
发明人: Jason Brian Martz , Christopher Cundy , Daniel William Kantrow , Eric Matthew Kurtz , Daniel Joseph Styles , Sathish Atluri , Clayton Mikush , Joshua Zachary Fried
IPC分类号: F02D41/38 , F02D41/02 , F02B75/02 , F01L13/00 , F02D41/06 , F01L13/08 , F01N13/10 , F02D41/00
摘要: Methods and systems are provided for cylinder deactivation to reduce tailpipe emissions and increase exhaust temperature. In one example, a method may include operating a first set of cylinders in a first combustion cycle over modified eight strokes and a second set of cylinders in a second combustion cycle over modified four strokes. Each cylinder in the first set of cylinders may be selectively deactivated via a variable displacement engine (VDE) mechanism while each cylinder in the second set of cylinders may be selectively deactivated via an active decompression technology (ADT) mechanism.
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