Method for assembling rotors without fixtures
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United States of America Patent
Stats
-
Jul 23, 1991
Grant Date -
N/A
app pub date -
Feb 27, 1990
filing date -
Feb 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of forming a clearance gap between a shrink fit rotor and a motor housing comprising the steps of heating the rotor until the rotor expands, sliding the heated rotor over a shaft having an axis, bringing the heated rotor into contact with at least one small protrusion on the surface of the motor housing, causing the protrusion to expand toward the heated rotor by transferring heat from the heated rotor to the protrusion, allowing the motor and the protrusion to cool whereby a clearance gap is formed between the rotor and the motor housing as the motor housing cools, and hermetically enclosing the rotor, the motor housing and the shaft within a compressor shell.
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