The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 2005
Filed:
Feb. 20, 2002
Jung Sik Park, Seoul, KR;
Jin Dong Kim, Gunpo, KR;
Jung Sik Park, Seoul, KR;
Jin Dong Kim, Gunpo, KR;
LG Electronics Inc., Seoul, KR;
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.