Hermetic compressor
AssigneeLG Electronics Inc.
InventorsSeokhwan MOON, Seoungmin Kang, Byeongchul Lee
Life of this patent
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Abstract
A hermetic compressor is provided that may include a vane that is inserted into a roller, rotates with the roller, and is pushed out toward an inner circumference of a cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces. The vane may include a body having a sealing surface that contacts the inner circumference of the cylinder and inserted into the roller; and a guide that extends from an axial end of the body in a direction crossing a direction the vane slides out, and that is slidably inserted into a guide groove formed on at least one of the first bearing or the second bearing to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder.
Claims20
A hermetic compressor, comprising:
- a cylinder an inner circumference of which is elliptical and forms a compression chamber;
- a first bearing and a second bearing provided on both sides of the cylinder and forming a compression chamber together with the cylinder;
- a roller that is attached to a rotary shaft supported by the first and second bearings, eccentric to the inner circumference of the cylinder, and varies a volume of the compression chamber while rotating;
- and
- at least one vane that is inserted into the roller, rotates with the roller, and is pushed out toward the inner circumference of the cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces, wherein each of the at least one vane comprises:
- a body inserted into the roller and having a sealing surface that contacts the inner circumference of the cylinder;
- and
- a guide that extends from an axial end of the body in a direction crossing a direction the vane slides out, wherein the guide is slidably inserted into a guide groove formed on at least one of the first bearing or the second bearing to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder.
A hermetic compressor, comprising:
- a cylinder an inner circumference of which is circular and forms a compression chamber, wherein an intake port is formed at a first side of the inner circumference and at least one exhaust port is formed at a first side of the intake port;
- a roller that is eccentric to the inner circumference of the cylinder and varies a volume of the compression chamber while rotating;
- and
- a plurality of vanes that is inserted into the roller, rotates with the roller, and is pushed out toward the inner circumference of the cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces, wherein, if a point at which the inner circumference of the cylinder and an outer circumference of the roller are closest is referred to as a contact point and a line passing through the contact point and a center of the cylinder is referred to as a centerline, a non-contact region in which the inner circumference of the cylinder and a sealing surface of a vane of the plurality of vanes are separated is created in a region comprising the at least one exhaust port with respect to the centerline.
A hermetic compressor, comprising:
- a cylinder an inner circumference of which is elliptical and forms a compression chamber;
- a first bearing and a second bearing provided on both sides of the cylinder and forming a compression chamber together with the cylinder;
- a guide groove formed on a surface of one of the first bearing or the second bearing facing the roller;
- a roller that is attached to a rotary shaft supported by the first and second bearings, eccentric to the inner circumference of the cylinder, and varies a volume of the compression chamber while rotating;
- and
- a plurality of vanes that is inserted into the roller, rotates with the roller, and is pushed out toward the inner circumference of the cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces, wherein each of the plurality of vanes comprises:
- a body inserted into the roller and having a sealing surface that contacts the inner circumference of the cylinder;
- and
- a guide that extends from the body in a direction perpendicular to a direction of sliding movement of the vane, wherein the guide is slidably inserted into the guide groove to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder.
Dependencies are inferred from the claim text.