Abstract: A reciprocating motor including a piston operatively connected with a magnet unit, a cylinder having an open end to receive the piston and having a groove formed at a circumference along an outer surface thereof near the open end, a stator assembly positioned around the cylinder and cooperating with the magnet unit to allow the piston to reciprocate within the cylinder, and a ring member being placed into the groove of the cylinder to be frictionally urged towards a portion of the stator assembly to maintain contact with and hold the portion of the stator assembly in place on the outer surface of the cylinder.

Abstract: A reciprocating motor includes: an outer stator (4) in a support frame (2); an inner stator (6) disposed at the inner circumferential surface of the outer stator (4) with a certain air gap and mounted at the outer circumferential surface of a cylinder (16); a magnet (10) disposed to be linearly movable between the outer stator (4) and the inner stator (6) driven by the winding coil (8) due to move the piston (18); and the locking unit (30, 32), installed at the lateral face of the inner stator (6) for preventing the inner stator (6) from moving in an axial direction. Therefore, the reciprocating motor can improve reliability of a motor by preventing an inner stator (6) from moving in an axial direction by vibration caused by linear movement of the magnet (10).

Abstract: A reciprocating motor including a piston operatively connected with a magnet unit, a cylinder having an open end to receive the piston and having a groove formed at a circumference along an outer surface thereof near the open end, a stator assembly positioned around the cylinder and cooperating with the magnet unit to allow the piston to reciprocate within the cylinder, and a ring member being placed into the groove of the cylinder to be frictionally urged towards a portion of the stator assembly to maintain contact with and hold the portion of the stator assembly in place on the outer surface of the cylinder.

Abstract: Disclosed is an apparatus for supplying oil of a reciprocating compressor, comprising: an oil cylinder installed at one side of a reciprocating compressor main body for linearly vibrating together with the compressor main body, an oil piston inserted in the oil cylinder and relatively moving according to the linear vibration of the oil cylinder and thus sucking an oil in the oil cylinder and pumping the oil into the compressor main body by varying pressure in the oil cylinder, a pair of springs installed in the oil cylinder for elastically supporting both ends of the oil piston and causing a continual relative movement of the oil piston according to the linear vibration of the oil cylinder and a spring fixing means fixing the pair of springs for maintaining a certain interval with an inner circumferential surface of the oil cylinder, which results in reducing damage due to friction between the oil cylinder and the springs and in improving an oil supplying function.

Abstract: A coil spring in accordance with the present invention includes inner coils formed as a wire is wound plural times; and an inflection portion having a nonlinear shape and formed at an outer circumferential surface of the end coil, which is positioned toward the inner coil. When connected to other component and is constricted and relaxed to absorb an impact or a vibration transmitted from the outside, the coil spring minimizes friction generated between itself and other components so that reliability of a reciprocating compressor having the coil spring can be improved.

Abstract: An oil feeding apparatus for a reciprocating compressor comprises: a frame unit; an oil cylinder positioned at a lower portion of the frame unit and vibrating together with the frame unit; an oil flow passage formed in the frame unit to be communicated with the oil cylinder; an oil valve placed at the frame unit, for opening/closing the oil flow passage; an oil piston movably-inserted in the oil cylinder; and springs for elastically supporting the oil piston, wherein the frame unit and the oil cylinder are integrally formed with each other. According to this, components therefor can be simplified, a distortion of the components during an assembling process can be prevented, and an oil leakage and an oil contamination can be also effectively prevented.

Abstract: A reciprocating motor includes: an outer stator (4) in a support frame (2); an inner stator (6) disposed at the inner circumferential surface of the outer stator (4) with a certain air gap and mounted at the outer circumferential surface of a cylinder (16); a magnet (10) disposed to be linearly movable between the outer stator (4) and the inner stator (6) driven by the winding coil (8) due to move the piston (18); and the locking unit (30, 32), installed at the lateral face of the inner stator (6) for preventing the inner stator (6) from moving in an axial direction. Therefore, the reciprocating motor can improve reliability of a motor by preventing an inner stator (6) from moving in an axial direction by vibration caused by linear movement of the magnet (10).

Abstract: A linear compressor including a well-closed container filled with oil at its bottom; a compressive unit having a frame of a hollow inside the well-closed container to which a cylinder inserted, a piston inserted into the hollow of the cylinder, for linearly moving upward and downward by driving of a motor installed at the cylinder, and a discharge cover for covering one end of the cylinder; and an oil supply unit mounted at the lower side of the compressive unit, for pumping oil, wherein the oil supplied from the 01 oil supply unit to the compressive unit exists within the compressor unit in either case that the compressor is operated or stopped. Accordingly, even when the compressor is stopped, the oil remains in the compressive unit, so that when the compressor is re-started, the friction portion between the cylinder and the piston is lubricated, preventing abrasion of the friction portion. Thus, a reliability of the compressor is highly improved.

Abstract: An oil supply unit of a linear compressor including: a well-closed container filled with oil; a frame installed within the well-closed container; a cylinder fixed at the frame; a piston inserted, in the cylinder and being linearly and reciprocally moved by a linear motor; an oil cylinder fixed at the lower portion of the frame so as to be put in the oil filling the well-closed container, and being vibrated in the horizontal direction according to the reciprocal movement of the piston; an oil piston inserted in the oil cylinder in a manner of dividing the inside of the oil cylinder to a suction space and a discharge space that are communicated to each other, and being vibrated in the horizontal direction; an oil suction installed at the outer side of the suction side of the oil cylinder, for opening and closing the suction side of the oil cylinder; an oil discharge valve installed at the outer side of the discharging side of the oil cylinder, for opening and closing the discharging side of the oil cylinder; an

Abstract: A magnet fixed structure for a compressor motor, which includes a cylindrical magnet paddle in which a plurality of magnet insertion holes are formed along a circumference thereof or a cylindrical magnet paddle alone, a plurality of magnets inserted into the magnet insertion holes of the magnet paddle or fixed to the magnet paddle, and a magnet fixing ring or a varnish-type molding member for fixing the magnets, effectively fixes the magnets to the magnet paddle, for thereby improving reliability and efficiency of the compressor motor as well as mass-productivity thereof.