Turbocharged engine control operation with adjustable compressor bypass
A turbocharger and engine technology, applied in engine control, machine/engine, engine components, etc., can solve problems such as turbocharger damage, affecting air-fuel ratio, affecting engine combustion stability, etc.
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[0015] Engine 10 may include a turbocharger 160 having a compressor 162 that may receive intake air from air filter 42 and discharge charge air into intake passage 44 . Compressor 162 may be connected to turbine 164 by a shaft that transmits motion of turbine 164 to compressor 162 . Compressor 162 may be fluidly connected to recirculation loop 168 , which may bypass the compressor delivering flow from air filter 42 to intake passage 44 . The recirculation loop 168 may include a bypass valve 166 . Bypass valve 166 may be controlled by controller 12 to control the recirculated air flow rate between the compressor outlet and the compressor inlet.
[0016] Turbine 164 may include a variable geometry turbine, wherein the geometry of the turbine may be adjusted by controller 12 during engine operation. Alternatively or additionally, an adjustable wastegate 150 may be used to allow controller 12 to adjust the amount of exhaust gas bypassing the turbine based on engine operating con...
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