Hermetic compressor

Abstract

Disclosed herein is a hermetic compressor. The hermetic compressor includes a suction muffler. The suction muffler includes an inlet part and a refrigerant guide pipe. The inlet part has a shape of a semi-flare pipe, and is spaced apart from an inlet pipe. The refrigerant guide pipe extends from an interior of a resonance chamber to communicate with a compression chamber. An expanding part having an enlarged diameter is provided at an inlet of the refrigerant guide pipe. The inlet part and the expanding part allow noises produced in the compression chamber to be doubly diffused, thus efficiently reducing the noises.

1 . A hermetic compressor, comprising: 
 a hermetic casing;    a compressing unit provided in the hermetic casing to compress a refrigerant;    an inlet pipe to guide the refrigerant into the hermetic casing; and    a suction muffler to draw the refrigerant through the inlet pipe, and to discharge the refrigerant to the compressing unit, the suction muffler comprising: 
 a muffler casing to define a resonance chamber therein;  
 an inlet part provided at a predetermined portion of the muffler casing, and having an inlet port to allow the refrigerant to be drawn into the muffler casing, with the inlet port being provided to be spaced apart from the inlet pipe; and  
 a refrigerant guide pipe to extend from an interior of the resonance chamber to communicate with the compressing unit, with an expanding part having an enlarged diameter and being provided at an inlet of the refrigerant guide pipe.  
   
   
   
       2 . The hermetic compressor according to  claim 1 , wherein the expanding part is provided to be tapered in a flowing direction of the refrigerant which is drawn into the muffler casing.  
   
   
       3 . The hermetic compressor according to  claim 1 , wherein the inlet port has a shape of a semi-flare pipe which is tapered in a flowing direction of the refrigerant which is drawn into the muffler casing.