Quad layer passage variable geometry turbine for turbochargers in exhaust gas recirculation engines
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United States of America Patent
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Nov 15, 2016
Grant Date -
Jan 7, 2016
app pub date -
Jul 2, 2014
filing date -
Jul 2, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A variable geometry turbine for turbochargers in exhaust gas recirculation engines incorporates a turbine housing having an exhaust inlet with a first side receiving exhaust from cylinders having exhaust gas recirculation (EGR) and a second side receiving exhaust from non-EGR cylinders. The first side has a first EGR-driving passage and a second EGR-driving passage and the second side having a first non-EGR-driving passage and a second non-EGR-driving passage. A first control valve is associated with the second EGR-driving passage and a second control valve is associated with the second non-EGR-driving passage. A controller is adapted to control the first and second control valves.
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