Rotary compressor
AssigneeLG Electronics Inc.
InventorsSeseok Seol, Yunhi Lee, Seoungmin Kang
Life of this patent
Estimating the term…
Abstract
A rotary compressor is provided that may include a casing, a cylinder, a main bearing, a sub bearing, a rotational shaft, a roller, and at least one vane. The cylinder may include at least one elastic deformation unit to absorb impact with the at least one vane. With this structure, a collision force caused due to chattering of the at least one vane may be absorbed to suppress or prevent friction loss and/or wear between the cylinder and the vane, thereby enhancing compressor efficiency, reducing vibration noise, and enabling fast initial actuation.
Claims19
A rotary compressor, comprising:
- a casing;
- a cylinder fixed inside of the casing to define a compression space;
- a main bearing and a sub bearing respectively disposed on both sides of the cylinder in an axial direction;
- a rotational shaft supported on the main bearing and the sub bearing;
- a roller disposed on the rotational shaft to be rotatable, and forming at least one contact point at which an outer circumferential surface thereof is in contact with an inner circumferential surface of the cylinder;
- and
- at least one vane slidably inserted into the roller, and having a front end surface brought into contact with the inner circumferential surface of the cylinder to divide the compression space into a plurality of compression chambers, wherein the cylinder comprises at least one elastic deformation unit configured to absorb an impact with the at least one vane, wherein each of the at least one elastic deformation unit comprises:
- a space portion formed between an outer circumferential surface of the cylinder and the inner circumferential surface of the cylinder;
- and
- an elastic portion that connects inner ends of the space portion and defines the inner circumferential surface of the cylinder, and at least a portion of an outer circumferential surface of the elastic portion is formed in an arcuate shape in a circumferential direction.
A rotary compressor, comprising:
- a casing;
- a cylinder fixed inside of the casing to define a compression space;
- a main bearing and a sub bearing respectively disposed on both sides of the cylinder in an axial direction;
- a rotational shaft supported on the main bearing and the sub bearing;
- a roller disposed on the rotational shaft to be rotatable, and forming at least one contact point at which an outer circumferential surface thereof is in contact with an inner circumferential surface of the cylinder;
- and
- at least one vane slidably inserted into the roller, and having a front end surface brought into contact with the inner circumferential surface of the cylinder to divide the compression space into a plurality of compression chambers, wherein the cylinder comprises at least one elastic deformation unit configured to absorb an impact with the at least one vane, and wherein each of the at least one elastic deformation unit comprises:
- a space portion in the form of an opening or at least one groove between an outer circumferential surface of the cylinder and the inner circumferential surface of the cylinder;
- and
- an elastic portion disposed adjacent to the opening or the at least one groove, extending in a circumferential direction, and forming the inner circumferential surface of the cylinder, wherein at least a portion of an outer circumferential surface of the elastic portion is formed in an arcuate shape in the circumferential direction.
Dependencies are inferred from the claim text.