Method for the manufacture of a vaned diffuser

Details Method for the manufacture of a vaned diffuser Method for the manufacture of a vaned diffuser

2007-03-20

2007-03-20

Cozart, Jermie E. (Department: 3726)

Metal working

Method of mechanical manufacture

Impeller making

C029S889210, C029S527500, C029S527600, C164S047000, C164S069100, C164S070100, C164S131000

Reexamination Certificate

active

10646972

ABSTRACT:
An improved method for manufacturing a vaned diffuser (101) of a turbocharger, preferably from aluminum or an aluminum alloy, where the vaned diffuser possesses at least one axis (115) suitable for separating the vaned diffuser from its rigid mold by translation. Casting of a raw vaned diffuser (407) having an optional central hub (205) and, optionally, ribs on the hub (209), is disclosed in a plaster mold (305). The hub and optional ribs are machine finished from the raw vaned diffuser to yield the finished vaned diffuser (101). The method provides the high degree of dimensional accuracy, and high quality surface finish, required to produce a vaned diffuser of an efficient turbocharger.

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