Sheild device

Abstract

A shielding device includes a perforated inner sheet metal layer; an outer sheet metal layer and a hollow space delimited by the perforated inner sheet metal layer and the outer sheet metal layer. A plurality of metallic hollow bodies are provided in the hollow space, wherein the minimum diameter of the hollow bodies is greater than the perforation of the inner sheet metal layer.

1 . Shielding comprising:
 a perforated inner sheet metal layer;   an outer sheet metal layer, wherein a hollow space delimited by the perforated inner sheet metal layer and the outer sheet metal layer is defined, and wherein the outer sheet metal layer at its edge is flanged over the perforated inner sheet metal layer; and wherein   a plurality of essentially spherical metallic hollow bodies that are loosely arranged in the hollow space, wherein the minimum diameter of the hollow bodies is greater than the perforation of the inner sheet metal layer.   
     
     
         2 . The shielding according to  claim 1 , wherein the plurality of metallic hollow bodies comprises at least two different external diameters and/or at least two different wall thicknesses. 
     
     
         3 . The shielding according to  claim 1 , wherein the maximum diameter of the metallic hollow bodies does not exceed ¼ of the maximum height of the hollow space. 
     
     
         4 . The shielding according to  claim 1 , wherein the metallic hollow bodies comprise high-temperature-resistant stainless steel. 
     
     
         5 . A machine component for encapsulating a component that comprises a three-dimensional section to be encapsulated, comprising:
 a plurality of metallic hollow bodies that form an encapsulation for thermal insulation and sound absorption, which encapsulation conforms to the shape of the three-dimensional section, and which metallic hollow bodies have been applied directly without space onto the component to be encapsulated; and wherein the metallic hollow bodies are sintered to each other and form a self-supporting structure.   
     
     
         6 . The machine component according to  claim 5 , wherein the plurality of metallic hollow bodies comprises at least two different external diameters and/or at least two different wall thicknesses. 
     
     
         7 . The machine component according to one of  claims 5 , wherein the maximum diameter of the metallic hollow bodies does not exceed ¼ of a maximum height of the encapsulation. 
     
     
         8 . The machine component according to  claim 5 , further comprising an outer enclosure of the encapsulation in the form of a sheet metal layer.