Gas burner membrane

Abstract

A gas burner membrane is provided. The membrane comprises a textile woven, braided or knitted fabric. This membrane further comprises different combustion zones on its burner surface. A method to provide such gas burner membrane is described.

1  A gas burner membrane comprising a textile fabric, said textile fabric comprising metal fibers, characterized in that said textile fabric comprising more than one zone, at least one of said zones having a different air permeability compared to the other said zones, said zones of said textile fabric providing at least two different combustion zones to said gas burner membrane.  
     
     
         2  A gas burner membrane as in  claim 1 , wherein said textile fabric consists of metal fibers.  
     
     
         3  A gas burner membrane as in  claim 1 , wherein said textile fabric comprises ceramic fibers.  
     
     
         4  A gas burner membrane as in  claim 1  or  3 , wherein at lease one of said combustion zones comprise more than one layer of said textile fabric to provide said different air permeability.  
     
     
         5  A gas burner membrane as in  claim 4 , wherein said layers of textile fabric are fixed to each other by spot welding.  
     
     
         6  A gas burner membrane as in  claim 4  to  5 , wherein said layers are of an identical textile structure.  
     
     
         7  A gas burner membrane as in  claim 4  to  5 , wherein said layers are of a different textile structure.  
     
     
         8  A gas burner membrane as in  claim 1  to  3 , wherein said zones of said textile fabric are provided by a different textile structure.  
     
     
         9  A gas burner membrane as in  claim 1  to  8 , wherein at least one textile fabric is a knitted fabric.  
     
     
         10  A gas burner membrane as in  claim 1  to  9 , wherein all textile fabrics are knitted fabrics.  
     
     
         11  A gas burner membrane as in  claims 1  to  10 , said gas burner membrane being fixed in a frame, wherein said zones located closest to said frame, having the lowest air permeability compared to the other of said zones.  
     
     
         12  A method of manufacturing a gas burner membrane, said method comprising the step of providing a textile fabric comprising different zones, said zones being provided by different textile structures.  
     
     
         13  A method to provide a gas burner membrane, comprising the steps of 
 providing textile fabric, said fabric comprising metal fibers;  
 using said textile fabric as a basic textile fabric layer;  
 adding more than one layer of textile fabrics at one or more zones of said basic textile fabric layer;  
 fixing layers of textile fabric to another;  
 
     
     
         14  A method according to  claim 12 , said method further comprising the step of fixing of said textile fabric layers is done by spot welding.  
     
     
         15  Use of a gas burner membrane as in  claim 1  to  10  for gas combustion, applying at least two different firing rates simultaneously on said gas burner membrane.  
     
     
         16  Use of a gas burner membrane obtainable by a method as in  claim 11  to  13  for gas combustion, applying at least two different firing rates simultaneously on said gas burner membrane.