Scroll machine with brushless permanent magnet motor

Details Scroll machine with brushless permanent magnet motor Scroll machine with brushless permanent magnet motor

2004-12-17

2008-10-14

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Weight balanced working member or partition

C418S055100, C418S055500, C418S057000, C417S410500, C417S902000

Reexamination Certificate

active

07435067

ABSTRACT:
A scroll machine is powered by a brushless permanent magnet motor. The rotor for the motor includes a rotor body formed by a plurality of laminations and an upper and lower counterweight made of zinc and located at opposite ends of the rotor body. An attachment member extends through the counterweights and the rotor body to secure the counterweights and the plurality of laminations. The counterweights include steel inserts which cooperate with the attachment member to provide a metal to metal clamping for the rotor body with a steel connection being maintained through the rotor.

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European Search Report for European Patent Application No. EP05256975, dated Mar. 21, 2007 (2 pages).

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