Sliding variable-geometry turbocharger with insert in the turbine housing bore

A turbocharger (20) includes a thin-walled insert (70) installed in the bore (44) of the turbine housing. The insert (70) is generally ring-shaped and is radially resilient. The insert can be made of sheet metal formed into a ring shape, and in some embodiments is a split ring. A piston (60) is axia...

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Bibliographische Detailangaben
Hauptverfasser:	BOUVIER, EMMANUEL, ABEL, FRANCIS, MARQUES, MANUEL, BARTHELET, PIERRE, SAUSSE, LORRAIN, VAUTIER, LAURENT, CLAUDON, ALAIN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A turbocharger (20) includes a thin-walled insert (70) installed in the bore (44) of the turbine housing. The insert (70) is generally ring-shaped and is radially resilient. The insert can be made of sheet metal formed into a ring shape, and in some embodiments is a split ring. A piston (60) is axially slidable in the bore (44) for varying the size of the turbine nozzle. The outer surface of the piston slides against the inner surface of the insert, and in preferred embodiments a piston ring (72) that encircles the piston engages the inner surface of the insert to substantially seal the interface between the insert and the piston.