F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
26/151, 62/23, 2
F04B 37/00 (2006.01) B23P 11/02 (2006.01) B23P 15/00 (2006.01) F04B 35/04 (2006.01) F04B 39/14 (2006.01) H02K 15/16 (2006.01)
Patent
CA 2030075
Title METHOD FOR ASSEMBLING ROTORS WITHOUT FIXTURES Inventor Gunther T. Jensen 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.
Fetherstonhaugh & Co.
Trane International Inc.
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