Absorption-cycle refrigerating unit

Abstract

An absorption-cycle refrigerating unit, comprising an electrically heated boiler, covered with a layer of mineral wool that is covered by an external enclosure made of expanded plastic material.

What is claimed is:  
     
         1 . An absorption-cycle refrigerating unit, comprising: an electrically heated boiler, a layer of mineral wool that covers said boiler; and an external enclosure made of expanded plastic material which covers said layer of mineral wool.  
     
     
         2 . The refrigerating unit of  claim 1 , wherein said external enclosure is made of expanded polyurethane.  
     
     
         3 . The refrigerating unit of  claim 1 , wherein said boiler is constituted by a tubular element, a heating body fixed on said tubular element, said heating body being constituted by an electric resistor that has a semicylindrical shape and is provided so as to surround a region of said heating body.  
     
     
         4 . The refrigerating unit of  claim 2 , wherein said enclosure made of expanded plastic material has a prism-like quadrangular cross-section.  
     
     
         5 . The refrigerating unit of  claim 4 , further comprising a metallic box-like body which contains said enclosure made of expanded plastic material.