Method for making rotor counterweight insert apparatus

Details Method for making rotor counterweight insert apparatus Method for making rotor counterweight insert apparatus

1995-05-18

1996-03-05

Rowan, Kurt

Metal founding

Process

Shaping liquid metal against a forming surface

164112, B22D 1900

Patent

active

054958857

ABSTRACT:
A hermetic compressor assembly is disclosed including a motor compressor disposed within a hermetically sealed housing, wherein the housing has an oil sump in the bottom thereof from which oil is drawn to lubricate the compressor mechanism. An electric drive motor includes a vertical rotor having a lower axial end ring with rotor counterweight die cast therein, whereby turbulence and resulting agitation of the oil in the oil sump is prevented during rotation of the rotor. By die casting the counterweight within the end ring additional attachment parts and manufacturing steps are eliminated.

REFERENCES:
patent: 4362205 (1982-12-01), Cole et al.
patent: 4947539 (1990-08-01), Aussieker et al.
patent: 5064356 (1991-11-01), Horn
patent: 5336060 (1994-08-01), Tomell et al.
patent: 5386163 (1995-01-01), Heilman

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