Discharge Acoustic Filter, Manufacturing Process of Discharge Acoustic Filter and Hermetic Compressor

Abstract

The present invention lies in the field of mechanical engineering and describes a discharge acoustic filter. Specifically, the present invention includes a discharge acoustic filter, optionally made of polymeric material in which the connections between the discharge chambers are internally disposed, in order to reduce the surface area of the discharge acoustic filter, reducing heat exchange in relation to the hermetic volume, thus, increasing thermal efficiency and reducing the energy consumption of the system.

1 . Discharge acoustic filter for hermetic compressors, characterized by the fact that it comprises:
 a. at least a first element ( 1 ), which comprises:
 i. at least one first discharge chamber ( 4 ); 
 ii. a part of a second discharge chamber ( 5   a ); 
 iii. a part of a third discharge chamber ( 6   a ); 
 iv. a part of a fourth discharge chamber ( 7   a ); 
 v, a first duct ( 8 ) connecting the first discharge chamber ( 4 ) to the second discharge chamber ( 5 ); and 
 vi. a part of a third duct ( 10   a ) connecting the third discharge chamber ( 6 ) to the fourth discharge chamber ( 7 ); 
   b. at least a second element ( 2 ) comprising:
 i. a part of a second discharge chamber ( 5   b ); 
 ii. a part of a third discharge chamber ( 6   b ); 
 iii. a part of a fourth discharge chamber ( 7   b ); 
 iv. a part of a third duct ( 10   b ) connecting the third discharge chamber ( 6 ) to the fourth discharge chamber ( 6 ); and 
 v. a part of a second duct ( 9   b ) connecting the second discharge chamber ( 5 ) to the third discharge chamber ( 6 ); 
   c. at least a third element ( 3 ), being:
 i. associated in part of the second duct ( 9   b ); 
 ii. connecting the second discharge chamber ( 5 ) to the third discharge chamber ( 6 ); 
   wherein, the first element ( 1 ) is associated with the second element ( 2 ) and with the third element ( 3 ).   
     
     
         2 . Acoustic filter, according to  claim 1 , characterized by the fact that the first element ( 1 ) comprises at least one compressor cylinder cover ( 11 ). 
     
     
         3 . Manufacturing process of discharge acoustic filter for hermetic compressors, characterized by the fact that it comprises the steps of:
 a. manufacture of a first element ( 1 );   b. manufacture of a second element ( 2 );   c. positioning of a third element ( 3 ) to the second element ( 2 ); and   d. assembling the first element ( 1 ) to the second element ( 2 ).   
     
     
         4 . Manufacturing process of discharge acoustic filter, characterized by the fact that the manufacture of a first element ( 1 ) comprises the steps of:
 a. manufacture of a cylinder cover of compressor ( 11 );   b. manufacture of a first discharge chamber ( 4 ); and   c. manufacture of a first part of a second discharge chamber ( 5   a );   d. manufacture of a first part of a third discharge chamber ( 6   a );   e. manufacture of a first part of a fourth discharge chamber ( 7   a );   f. manufacture of a first duct ( 8 ) connecting the first discharge chamber ( 4 ) to the second discharge chamber ( 5 ).   
     
     
         5 . Manufacturing Process of discharge acoustic filter, according to  claim 3 , characterized by the fact that the manufacture of the second element ( 2 ) comprises the steps of:
 a. manufacture of a second part of a second discharge chamber ( 5   a );   b. manufacture of a second part of a third discharge chamber ( 6   a );   c. manufacture of a second part of a fourth discharge chamber ( 7   a ).   
     
     
         6 . Manufacturing process of discharge acoustic filter, according to  claim 3 , characterized by the fact that the steps of manufacture of the first element ( 1 ) and/or the steps of manufacture of the second element ( 2 ) occur at the same time. 
     
     
         7 . Hermetic compressor comprising discharge acoustic filter, characterized by the fact that the said discharge acoustic filter comprises:
 a. a cylinder cover ( 11 ) of compressor comprising at least a first discharge chamber ( 4 );   b. an intermediate region formed by the association of a first element ( 1 ) with a second element ( 2 ) and a third element ( 3 ); wherein,   the intermediate region comprises the association of at least a second discharge chamber ( 5 ), at least a third discharge chamber ( 6 ) and at least a fourth discharge chamber ( 7 );   the discharge chambers of the intermediate region are fluidly communicating.