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US 10,371,131 B2Granted
Linear compressor
AssigneeLG Electronics Inc.
InventorsSanghyun Bae, Wonsik Oh
Life of this patent
Estimating the term…
Abstract
A linear compressor is provided that may include a cylinder, to which a discharge valve may be coupled; a first piston, which may be provided to enable a reciprocating motion in an inside of the cylinder; a second piston, which may be provided to enable a reciprocating motion in an inside of the first piston; a first compression chamber formed between the discharge valve and the first piston; and a second compression chamber formed between the first piston and the second piston. The first piston and second piston may move in opposite directions with respect to each other.
Claims18
A linear compressor, comprising:
- a cylinder, to which a discharge valve is coupled;
- a first piston, which is provided to enable a reciprocating motion of the first piston in an inside of the cylinder, the first piston including a front portion in which a suction hole is formed;
- a first suction valve coupled to the front portion of the first piston and being configured to move to open or close the suction hole;
- a floating second piston, which is provided to enable a reciprocating motion of the second piston in an inside of the first piston, the second piston including a through hole defining a flow path of a refrigerant;
- a second suction valve coupled to the second piston and being configured to move to open or close the through hole;
- a first compression chamber formed between the discharge valve and the first suction valve;
- a second compression chamber formed between the front portion of the first piston and the second suction valve, wherein the first piston and the second piston move in opposite directions with respect to each other;
- and
- a first spring installed in the second compression chamber, the first spring being configured to be supported by the front portion of the first piston, wherein the second suction valve is disposed between the first spring and the second piston;
- a second spring provided on a refrigerant suction side of the second piston, wherein the first spring is provided on a refrigerant discharge side of the second piston.
7 more elements
A linear compressor, comprising:
- a cylinder;
- and
- a plurality of pistons coaxially provided within the cylinder and forming a plurality of compression chambers within the cylinder, wherein the plurality of pistons is capable of moving in a same direction and opposite directions with respect to each other to perform in-phase and anti-phase behaviors with respect to one another while performing two stage compression of a refrigerant, wherein the plurality of pistons includes a first piston and a floating second piston, the second piston being provided within the first piston, wherein the plurality of compression chambers includes a first compression chamber provided between the first piston and a discharge valve provided at an end of the cylinder and a second compression chamber provided between the first piston and the second piston, wherein a refrigerant of the second compression chamber is suctioned into the first compression chamber when the first piston moves in a first direction and the second piston moves in a second direction, wherein the refrigerant of the first compression chamber is discharged and suction of the refrigerant into the second compression chamber is performed when the first piston moves in the second direction and the second piston moves in the first direction, wherein a first suction valve is coupled to a suction hole of the first piston and guides the refrigerant of the second compression chamber to the first compression chamber, wherein, a second suction valve is coupled to a through hole of the second piston and guides refrigerant in the through hole of the second piston to the second compression chamber, wherein a spring is installed in the second compression chamber, and wherein the second suction valve is disposed between the spring and the second piston.
Dependencies are inferred from the claim text.