US 2006/0048523 A1Published application

Reciprocating compressor for refrigerator

OwnerGi-Bong Kwoninventor

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Abstract

A reciprocating compressor with an improved lubrication performance by using a lubricant in harmony with a refrigerant compressed therein, which includes: a hermetic container (6) to which a suction pipe (2) for sucking a refrigerant and a discharge pipe (4) for discharging a compressed refrigerant; a driving unit (8) disposed inside the hermetic container (6) and generating a reciprocal motional force; a compression unit (10) for receiving the reciprocal motional force from the driving unit (8) and compressing an ethane group-based R134a refrigerant; and a lubrication unit (12) for supplying a lubricant to each motional portion of the driving unit (8) and the compression unit (10) and performing a lubricating operation thereon and using an ester-based lubricant, a sort of synthetic fluid with a density of 0.91˜0.99 (15/4° C.)

Claims9

Dependent claims

A reciprocating compressor for a refrigerator comprising:

a hermetic container having a suction pipe and a discharge pipe connected thereto;
a driving unit having a stator fixed inside the hermetic container and a mover disposed spaced apart from the stator and linearly and reciprocally moved by interaction with the stator when power is applied to the stator;
an HFC refrigerant sucked into the suction pipe, being hydrogenated carbon fluoride and not including chlorine;
a compression unit for compressing the HFC refrigerant upon receiving a reciprocal motional force generated from the driving unit;
an ester-based lubricant, a sort of synthetic fluid, filled at the lower portion of the hermetic container and having a high moisture absorption and a saturated water amount of 1500˜2000 PPM;
and
a lubrication unit for supplying the ester-based lubricant to each motional portions of the driving unit and the compression unit and making a lubricating operation.

4 more elements

Dependencies are inferred from the claim text.