Rolling bearing assembly of an exhaust gas turbocharger

The invention relates to a rolling bearing assembly (6) for a rotor (2) of a turbocharger, preferably an exhaust gas turbocharger (1), comprising a bearing housing (7). A reduced tendency toward vibration results from a bearing cartridge (8), which has an outer shell (9) and an inner shell (10) conc...

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Bibliographic Details
Main Author NGUYEN-SCHAEFER THANH-HUNG
Format Patent
LanguageChinese
English
Published 26.03.2014
Subjects
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
MEANS FOR DAMPING VIBRATION
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
SHOCK-ABSORBERS
SPRINGS
STEAM ENGINES
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The invention relates to a rolling bearing assembly (6) for a rotor (2) of a turbocharger, preferably an exhaust gas turbocharger (1), comprising a bearing housing (7). A reduced tendency toward vibration results from a bearing cartridge (8), which has an outer shell (9) and an inner shell (10) concentric to the outer shell, which are rotatably supported on each other about a concentric rotational axis (13) by means of rolling elements (12) in two bearing sections (11) arranged at an axial distance from each other, wherein the inner shell (10) is pressed onto the outside of a rotor shaft (3) of the rotor (2) and has a respective inner press-fit region (14) in the region of each bearing section (11), wherein the outer shell (9) is pressed into the inside of the bearing housing (7) and has at least one outer press-fit region (15) at an axial distance from the bearing sections (11), wherein in each bearing section (11) a respective oil damping ring channel (16) is formed radially between the bearing housing (7)
Bibliography:Application Number: CN201280034162