Hermetic compressor

Abstract

A hermetic compressor comprising a pulsation damping flow path. The pulsation damping flow path is provided inside a discharge silencer, and is adapted to communicate the discharge silencer with a discharge chamber defined in a cylinder head. The pulsation damping flow path is formed to have a plurality of passages. Accordingly, by reducing a diameter of the respective passages down to a relatively small value compared to that of a conventional pulsation pipe, it is possible to considerably attenuate the pulsation of a refrigerant. Further, since the plural passages allow a constant amount of the refrigerant to continuously pass therethrough, it is possible to prevent an increase in a starting voltage of the compressor and the consumption of electricity thereof.

1 . A hermetic compressor comprising: 
 a cylinder internally defining a compression chamber;    a cylinder head coupled to one side of the cylinder and internally defining a discharge chamber, the discharge chamber communicating with the compression chamber;    a discharge silencer coupled to the discharge chamber of the cylinder head and adapted to attenuate a pulsation of a refrigerant being discharged; and    a pulsation damping flow path provided inside the discharge silencer so that one end thereof communicates with the discharge chamber and the other end thereof communicates with the interior of the discharge silencer, the pulsation damping flow path having plural passages.    
   
   
       2 . The compressor according to  claim 1 , wherein the pulsation damping flow path has a multiply twisted spiral shape.  
   
   
       3 . The compressor according to  claim 1 , wherein both the ends of the pulsation damping flow path take the form of a single passage, respectively.  
   
   
       4 . The compressor according to  claim 1 , wherein the pulsation damping flow path includes a plurality of hollow tubes coupled to each other.  
   
   
       5 . The compressor according to  claim 1 , wherein the pulsation damping flow path includes a single tube, the interior of the single tube being divided to define a plurality of passages.  
   
   
       6 . The compressor according to  claim 1 , wherein the respective passages have substantially the same sectional area as each other.  
   
   
       7 . The compressor according to  claim 6 , wherein the respective passages have an inner diameter of 1.0 mm to 1.5 mm, a length of 70 mm to 120 mm, and the discharge silencer has a volume of 15 cc to 25 cc.