BEARING SYSTEMS FOR MOTOR-ASSISTED TURBOCHARGERS FOR INTERNAL CONBUSION ENGINES

摘要

In a turbocharger shaft bearing system, a thrust bearing (11) is provided inboard of the compressor end shaft bearing (13). Removable parts of the turbocharger housing permit assembly of a first thrust bearing part (40) with an outwardly extending flange (40a) forming at least one thrust bearing interface to be fastened to the rotating shaft (12) for rotation therewith and a separate stationary thrust bearing part (42) to be carried by the housing, providing thrust bearing interface for the thrust bearing interface of the rotating first thrust bearing part inboard of the compressor end of shaft bearing. The removable parts can include a separate supporting member (27) for the compressor end shaft bearing. The remainder of the turbocharger housing supports the second shaft bearing (14) adjacent its turbine end and, through the separate bearing supporting member, the first shaft bearing.