TURBOCHARGER ASSEMBLY AND STABILIZING JOURNAL BEARING THEREFOR

An engine turbocharger, particularly of the two-cycle diesel type for railway locomotives and other applications, has a rotor (14) with an overhung compressor supported by a compressor journal bearing (36) and fixed thrust flange (46) combination. The bearing (36) combines a multi- (two) lobed, offs...

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Bibliographische Detailangaben
Hauptverfasser:	BLASE, JAMES L, KLUSMAN, STEVEN A, KORENCHAN, JAMES E
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ELEMENTS OR CRANKSHAFT MECHANISMS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS 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 NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An engine turbocharger, particularly of the two-cycle diesel type for railway locomotives and other applications, has a rotor (14) with an overhung compressor supported by a compressor journal bearing (36) and fixed thrust flange (46) combination. The bearing (36) combines a multi- (two) lobed, offset cylindrical wedge-film inner surface (58,59) with a close clearance squeeze-film outer surface (66,67,68) that causes the bearing (36) to float laterally in a support member (38) to damp shaft run-out whilst supporting the rotor (14) on load-controlling oil wedges. The fixed flange (46) provides thrust control and provides a loose pin connection (51,54) with the bearing (36) that prevents rotation thereof whilst permitting its squeeze-film damping lateral motion to occur. Particular pressure lubrication means (70,71,72,74,76,78) provide oil to the interior surface and exterior surface of the bearing (36) in adequate quantity for the oil-wedge supporting and squeeze-film damping functions of the bearing (36).