Three-phase induction motor

Details Three-phase induction motor Three-phase induction motor

2007-01-11

2010-06-15

Nguyen, Tran N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S166000, C601S070000

Reexamination Certificate

active

07737588

ABSTRACT:
The preferred embodiment the invention proposes pertains to a three-phase induction motor, and operates on the premises of having the extension cords on two ends of the motor embedded with several balancing eccentric washers and a balancing eccentric block added, of which the eccentric block contains a sleeve bearing, and one end of the eccentric block is fitted with a bolt, with the bolt head covered with rubber; o-ring is fitted between the balancing eccentric washer and balancing eccentric block, whereby using the invention's frequency changer for controlling an AC 3-phase induction motor serves to generate multiple frequencies for generating different amplitudes, which can be use to control the speed and load emitted between the eccentric block and balancing eccentric washer.

REFERENCES:
patent: 2235183 (1941-03-01), Wettlaufer
patent: 2498977 (1950-02-01), Bertholin
patent: 2688102 (1954-08-01), Jackson
patent: 2945970 (1960-07-01), Nordegren
patent: 3919575 (1975-11-01), Weber et al.
patent: 4172986 (1979-10-01), Iwaide
patent: 4570616 (1986-02-01), Kunz
patent: 6084327 (2000-07-01), Steffen
patent: 6375630 (2002-04-01), Cutler
patent: 6440092 (2002-08-01), Leventhal
patent: 7563235 (2009-07-01), Van Der Meer
patent: 04096640 (1992-03-01), None

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