Electrical generator or motor structure – Dynamoelectric – Linear
Reexamination Certificate
2005-01-04
2005-01-04
Le, Dang (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Linear
C310S015000, C417S415000, C417S417000, C417S417000
Reexamination Certificate
active
06838788
ABSTRACT:
A motor structure for a reciprocating compressor, by which an power lowering of the motor can be prevented by installing a magnet to be eccentric toward a direction compressing a fluid to compensate a backward moved amount of the magnet by compression pressure during operating the compressor and a motor saturation can be prevented, comprises: an outer core of cylindrical shape fixed inside a sealed chamber and including a winding coil wound therein; an inner core disposed on an inner circumferential surface of the outer core with a predetermined gap for forming a flux with the outer core when an electric source is applied to the winding coil; and a magnet disposed between the outer core and the inner core so as to move linearly for making a piston to perform a linear reciprocating movement, wherein an initial mid position of the magnet is located to be eccentric as a predetermined distance from a mid position of the outer core and of the inner core toward a moving direction of the piston when a fluid is compressed.
REFERENCES:
patent: 3903438 (1975-09-01), Dolz
patent: 6077054 (2000-06-01), Lee
patent: 0145058 (1995-06-01), None
Kim Jin Dong
Park Jung Sik
Le Dang
LG Electronics Inc.
Mohandesi Iraj A.
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