Compressor and manufacturing method thereof
AssigneeLG Electronics Inc.
InventorsWooju JEON, Youngpil KIM, Kyungmin LEE, Sangik SON
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Abstract
A compressor and a method of manufacturing the same are disclosed. The compressor includes a piston having formed therein a suction space, in which refrigerant gas is sucked; and a cylinder in which a piston is accommodated, the cylinder defining a compression space that is configured, based on the piston reciprocating in an axial direction, to compress the refrigerant gas therein. A plurality of grooves having a partial spherical shape and having a diameter of 10 micrometers is formed in an outer circumferential surface of the piston or an inner circumferential surface of the cylinder.
Claims20
A compressor comprising:
- a piston that defines a suction space configured to suction a refrigerant gas;
- and
- a cylinder that receives the piston and defines a compression space that is configured to compress, based on reciprocation of the piston in an axial direction, the refrigerant gas therein,
- wherein a plurality of grooves are defined at an outer circumferential surface of the piston or an inner circumferential surface of the cylinder, and
- wherein the plurality of grooves each have a partial spherical shape and have a diameter of 10 micrometers or less.
A method of manufacturing the compressor, wherein the compressor comprises:
- a piston that defines a suction space configured to suction a refrigerant gas;
- and
- a cylinder that receives the piston and defines a compression space that is configured to compress, based on reciprocation of the piston in an axial direction, the refrigerant gas therein,
- wherein a plurality of grooves are defined at an outer circumferential surface of the piston or an inner circumferential surface of the cylinder, and
- wherein the plurality of grooves each have a partial spherical shape and have a diameter of 10 micrometers or less,
- the method comprising:
- spraying a plurality of spherical bodies to the outer circumferential surface of the piston or the inner circumferential surface of the cylinder such that a plurality of grooves are formed at the outer circumferential surface of the piston or the inner circumferential surface of the cylinder,
- wherein the plurality of spherical bodies have a diameter of 40 to 200 micrometers.
A method of manufacturing the compressor, wherein the compressor comprises:
- a piston that defines a suction space configured to suction a refrigerant gas;
- and
- a cylinder that receives the piston and defines a compression space that is configured to compress, based on reciprocation of the piston in an axial direction, the refrigerant gas therein,
- wherein a plurality of grooves are defined at an outer circumferential surface of the piston or an inner circumferential surface of the cylinder, and
- wherein the plurality of grooves each have a partial spherical shape and have a diameter of 10 micrometers or less,
- the method comprising:
- spraying a plurality of spherical bodies to the outer circumferential surface of the piston or the inner circumferential surface of the cylinder such that a plurality of grooves are formed at the outer circumferential surface of the piston or the inner circumferential surface of the cylinder.
Dependencies are inferred from the claim text.