Compressor Housing Remanufacturing Method and Apparatus

摘要

A compressor housing defines an inlet bore having a first inlet collar disposed therein. The inlet collar is connected to the housing with a first plurality of radially extending posts. The first plurality of posts is removed to detach the inlet collar from the housing, and the inlet collar is removed from the housing. The same or another inlet collar is concentrically located within a liner. The liner can be located at a radial distance around at least a portion of the inlet collar. The inlet collar is connected to the liner by radially inserting a second plurality of posts through the liner and into the inlet collar. An assembly of the liner containing the inlet collar is inserted into the inlet bore of the housing such that the inlet collar forms the inducer bore of the compressor housing.

主权项

1. A remanufactured compressor housing for a turbocharger, comprising:
a cast compressor housing having a cylindrical cavity that has been cut within and around an inner portion of an inlet bore, the inlet bore defined in the housing along a centerline, the inlet bore extending between an edge of the housing and a first recirculation slot annular surface of the housing; a cylindrical liner disposed in the inlet bore, the cylindrical liner radially outwardly engaging a radially inward portion of the cylindrical cavity such that a radially inward surface of the cylindrical liner defines the inlet bore of the remanufactured compressor housing, the cylindrical liner defining a plurality of radially extending openings, each radially extending opening extending through the cylindrical liner; a cast inlet collar concentrically disposed entirely within the cylindrical liner in a direction along the centerline of the inlet bore, the inlet collar forming a plurality of blind holes extending in a radially inward direction at least partially through an outer surface of a wall of the cast inlet collar, each of the plurality of radially extending holes being aligned with a respective radial opening in the cylindrical liner; wherein the cast inlet collar is made from the same casting material as the remanufactured compressor housing; the inlet collar defining a second recirculation slot annular surface, the second recirculation slot annular surface disposed at an axial distance or gap from the first recirculation slot annular surface along the centerline to form a recirculation slot; a plurality of posts radially disposed through the cylindrical liner, each post extending through a respective radial opening in the liner and into a respective radially extending hole of the inlet collar, the plurality of posts being connected between the cylindrical collar and the cylindrical liner and operating to retain the inlet collar within the cylindrical liner.