Refrigeration system for cabinets

Abstract

An improvement in a refrigeration system for cabinets provided with a top cover and with internal peripheral walls made of metallic sheet and around which is seated an evaporating means ( 1 ) connected to the outlet of an expanding device ( 2 ) which is connected to the outlet pf a condenser ( 3 ) and to the suction of a compressor ( 4 ) of the refrigeration system, said evaporating means ( 1 ) comprising at least two tube extensions ( 10 ), each of them being seated around a respective height portion of the internal peripheral walls (P) and having a refrigerant fluid inlet end maintained in fluid communication with a respective expanding device ( 2 ), and a refrigerant fluid outlet end maintained in fluid communication with the compressor ( 4 ).

1 . An improvement in a refrigeration system for cabinets provided with a top cover and with internal peripheral walls (P), made in metallic sheet and around which is seated an evaporating means ( 1 ) connected to the outlet of an expanding device ( 2 ) which is connected to the outlet of a condenser ( 3 ) and to the suction of a compressor ( 4 ) of the refrigeration system, characterized in that the evaporating means ( 1 ) comprises at least two tube extensions ( 10 ), each of them being seated around a respective height portion of the internal peripheral walls (P) and having a refrigerant fluid inlet end maintained in fluid communication with a respective expanding device ( 2 ), and a refrigerant fluid outlet end maintained in fluid communication with the compressor ( 4 ).  
   
   
       2 . The improvement as set forth in  claim 1 , characterized in that the tube extensions ( 10 ) are formed by a tube with a reduced diameter, in order to define a cross-sectional area which is slightly smaller than a portion of the cross-sectional area of the tube required to form the evaporating means with a single continuous tube extension, corresponding to the number of tube extensions ( 10 ).