TURBOCHARGER BEARING HOUSING WITH NON-CIRCULAR BEARING BORES

A turbocharger (100) includes a compressor wheel (124), a shaft (130), a bearing housing (140) and a floating ring (150). The shaft is coupled to the compressor wheel (124) and extends through the bearing housing. The bearing housing includes an inner housing surface (144) extending circumferentiall...

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Bibliographische Detailangaben
Hauptverfasser:	BISCHOF, Kenneth R, ASHTON, Zachary S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BEARINGS BLASTING 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 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A turbocharger (100) includes a compressor wheel (124), a shaft (130), a bearing housing (140) and a floating ring (150). The shaft is coupled to the compressor wheel (124) and extends through the bearing housing. The bearing housing includes an inner housing surface (144) extending circumferentially around the shaft. The floating ring rotatably supports the shaft in the bearing housing and rotates relative to the bearing housing and the shaft. The floating ring includes an outer bearing surface (156) that extends circumferentially around the shaft and that faces the inner peripheral housing surface. The inner housing surface is formed of a rigid material and has an inner housing cross-sectional shape that in a first axially outer region of the inner housing surface is non-circular perpendicular to the axis, decreases in area moving axially toward a first axial end, and forms a first outer fluid film interface with the outer bearing surface of the floating ring.