Reciprocating compressor having a discharge pulsation reducing structure

Abstract

Disclosed is the reciprocating compressor according to the present invention comprising a main frame disposed inside a case to support an electrically-driven unit, a cylinder block connected with the main frame and having a compression chamber, a cylinder head having a refrigerant discharge chamber and connected with the cylinder block to seal the compression chamber, a first discharge muffler disposed at one side of the cylinder block, a second discharge muffler connected with a refrigerant discharge pipe and disposed at other side of the cylinder block, a refrigerant path connecting the refrigerant discharge chamber and the first discharge muffler, and a connecting path formed to penetrate the cylinder block to connect the first discharge muffler and the second discharge muffler.

What is claimed is:  
     
         1 . A reciprocating compressor comprising: 
 a main frame disposed inside a case to support an electrically-driven unit;    a cylinder block connected with the main frame and having a compression chamber;    a cylinder head having a refrigerant discharge chamber and being connected with the cylinder block to seal the compression chamber;    a first discharge muffler disposed at one side of the cylinder block;    a second discharge muffler connected with a refrigerant discharge pipe and disposed at another side of the cylinder block;    a refrigerant path connecting the refrigerant discharge chamber and the first discharge muffler; and    a connecting path penetrating the cylinder block to connect the first discharge muffler and the second discharge muffler.    
     
     
         2 . The reciprocating compressor of  claim 1 , wherein the connecting path is formed having a V shape.  
     
     
         3 . The reciprocating compressor of  claim 2 , wherein the connecting path has a necked shape.  
     
     
         4 . The reciprocating compressor of  claim 2 , wherein diameter of the connecting path is between about 1.5 mm and 4.0 mm.  
     
     
         5 . The reciprocating compressor of  claim 2 , wherein height of the first and second discharge mufflers is between about 14 mm and 30 mm.  
     
     
         6 . The reciprocating compressor of  claim 2 , wherein volume of the first and second mufflers is between about 18 cc and 25 cc.  
     
     
         7 . The reciprocating compressor of  claim 2 , wherein diameter of the connecting path is between about 1.5 mm and 4.0 mm, the height of the first and second discharge mufflers is between about 14 mm and 30 mm, and volume of the first and second mufflers is between about 18 cc and 25 cc.  
     
     
         8 . The reciprocating compressor of  claim 1 , wherein the cylinder block is connected to the main frame by means of a screw connection.  
     
     
         9 . The reciprocating compressor of  claim 8 , wherein the cylinder block is connected to the main frame by a first screw penetrating the first discharge muffler and being tightened on the main frame and a second screw penetrating the second discharge muffler and being tightened on the main frame.