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US 2017/0306961 A1Published application
Compressor
AssigneeLG Electronics Inc.
InventorsSeokhwan MOON, Bumdong SA, Byeongchul LEE
Life of this patent
Estimating the term…
Abstract
Disclosed is a compressor having a torque load reducing unit for moving a center of weight to which a gas force is applied. As the torque load reducing unit is formed at an oval-shaped roller, a distance between a rotation center of the roller and an operation point to which a gas force is applied becomes short. This can reduce a torque load to the roller, and can enhance compression efficiency.
Claims20
A compressor, comprising:
- a driving motor;
- a rotational shaft configured to transmit a rotational force of the driving motor,
- a cylinder installed at one side of the driving motor;
- a roller having an outer circumferential surface contacting an inner circumferential surface of the cylinder on at least two points, rotated by being provided at the rotational shaft, and concentric with the cylinder;
- and
- at least two vanes movably provided at the cylinder, contacting an outer circumferential surface of the roller, and configured to divide at least two compression spaces formed by the cylinder and the roller into a suction chamber and a compression chamber,
- wherein the roller is provided with a torque load reducing unit configured to move a center of weight to which a gas force is applied by the roller, and
- wherein the torque load reducing unit is formed at two sides of a short-axis direction central line of the roller, the short-axis direction central line perpendicular to a long-axis direction central line of the roller at a rotation center, the long-axis direction center line which connects a plurality of contact points between the outer circumferential surface of the roller and the inner circumferential surface of the cylinder with each other.
5 more elements
A compressor, comprising:
- a driving motor;
- a rotational shaft configured to transmit a rotational force of the driving motor;
- a cylinder installed at one side of the driving motor;
- a roller having an outer circumferential surface contacting an inner circumferential surface of the cylinder on at least two points, rotated by being provided at the rotational shaft, and concentric with the cylinder;
- and
- at least two vanes movably provided at the cylinder, contacting an outer circumferential surface of the roller, and configured to divide at least two compression spaces formed by the cylinder and the roller into a suction chamber and a compression chamber,
- wherein the roller is provided with a torque load reducing unit configured to move a center of weight to which a gas force is applied by the roller.
4 more elements
A compressor, comprising:
- a driving motor;
- a rotational shaft configured to transmit a rotational force of the driving motor;
- a cylinder installed at one side of the driving motor;
- a roller having an outer circumferential surface contacting an inner circumferential surface of the cylinder on at least two points, rotated by being provided at the rotational shaft, and concentric with the cylinder;
- and
- at least two vanes movably provided at the cylinder, contacting an outer circumferential surface of the roller, and configured to divide at least two compression spaces formed by the cylinder and the roller into a suction chamber and a compression chamber, wherein the roller is provided with a torque load reducing unit configured to move a center of weight to which a gas force is applied by the roller, wherein the roller is provided with the torque load reducing unit configured to move a center of weight to which a gas force is applied, toward a rotation center of the roller, and
- wherein assuming that the long-axis direction central line of the roller which connects two contact points of the roller contacting the inner circumferential surface of the cylinder is perpendicular to a virtual line which connects a lengthwise central line of the two vanes, a distance between a geometrical center of the torque load reducing unit and the rotation center is equal to or larger than a distance between the center of weight and the rotation center.
4 more elements
Dependencies are inferred from the claim text.