TURBOCHARGER TURBINE ROTARY BYPASS VALVE PROVIDING WASTE GATE REGULATION AND FULL TURBINE BYPASS FUNCTIONS

A turbocharger includes a three-way rotary turbine bypass valve (TBV) (160) operable to selectively supply exhaust gases to a turbine feed passage (136) leading to a turbine wheel (132), and/or to a bypass passage (137) that bypasses the turbine wheel. The TBV is structured and arranged to close the...

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Bibliographische Detailangaben
Hauptverfasser:	Klement, Jan, Krejci, Jaroslav, Zatko, Miroslav
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL DEVICES FOR VENTING OR AERATING ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A turbocharger includes a three-way rotary turbine bypass valve (TBV) (160) operable to selectively supply exhaust gases to a turbine feed passage (136) leading to a turbine wheel (132), and/or to a bypass passage (137) that bypasses the turbine wheel. The TBV is structured and arranged to close the bypass outlet (B) of the valve when the turbine outlet (T) is fully open, to partially open the bypass passage while the turbine outlet (T) remains fully open, to fully open the bypass passage when the turbine outlet (T) is partially closed, and to fully open the bypass passage when the turbine passage is fully closed. The TBV turns the exhaust gas flows through acute angles between inlet and outlets, mitigating pressure losses through the valve. Leakage to bypass is minimized by a labyrinth seal formed when the valve member closes the bypass outlet.