Reciprocating compressor cylinder cover

Abstract

The present invention refers to a reciprocating compressor cylinder cover and, more particularly, to a cylinder cover provided with at least one discharge chamber comprising a compact construction concept, able to guarantee an application in reciprocating compressors of different capacities, with hermetic housings provided with different internal volumes.

1 . Reciprocating compressor cylinder cover, comprising:
 at least a first expansion chamber ( 1 ) and at least a second expansion chamber ( 2 ) fluidly connected to each other by means of at least one communication duct ( 3 );   the first expansion chamber ( 1 ) being defined, at least partially, by the region ( 4 ) of the cover and the counter-parts of the compression cylinder;   the second expansion chamber ( 2 ) being defined, at least partially, by the region ( 5 ) of the cover and the counter-parts of the discharge system;   the reciprocating compressor cylinder cover being characterized in that:   the first expansion chamber ( 1 ) comprises a closing interface ( 11 ) with the valve plate arranged at the end of the compression cylinder and the second expansion chamber ( 2 ) comprises a closing interface ( 21 ) with counter-parts of the discharge system; and   the closing interface ( 11 ) of the first expansion chamber ( 1 ) and the closing interface ( 21 ) of the second expansion chamber ( 2 ) are facing the same face, and   the regions ( 4 ) and ( 5 ) of the cylinder cover comprise at least one restriction between them, said restriction being designed to reduce resonances in the excitation frequencies of the reciprocating compressor.   
     
     
         2 . Reciprocating compressor cylinder cover, according to  claim 1 , characterized in that an exhaust chamber is subdivided into two or more chambers interconnected by at least one communication duct.