Metal burner membrane

Abstract

The invention relates to a gas burner comprising a metal burner membrane having a base section ( 201 ), a closing section ( 203 ) and a transition region in between ( 202 ). The shape of the membrane is such that the smallest radius of curvature of the transition zone is smaller than the smallest radius of curvature of the base section. Furthermore the burner membrane uninterruptedly flows over from the base section through the transition region into the closing section. The advantages of such a gas burner are amongst others a large dynamic power range, an improved flame front and a low production cost.

1 . A gas burner, comprising:
 a metal burner membrane comprising a base section that is a plane and a closing section,   wherein the metal burner membrane is uninterrupted and comprises a transition region for connecting the base section to the closing section, wherein the transition region has a smallest radius of curvature r transition  being larger than zero.   
     
     
         2 . A gas burner according to  claim 1 , wherein the smallest radius of curvature r transition  of the transition region is larger than 3 mm. 
     
     
         3 . A gas burner according to  claim 2 , wherein the smallest radius of curvature r transition  of the transition region is 9 mm. 
     
     
         4 . A gas burner according to  claim 1 , wherein the closing section vanishes into a line. 
     
     
         5 . A gas burner according to  claim 1 , wherein the metal burner membrane comprises a fabric comprising stainless steel fibers. 
     
     
         6 . A gas burner according to  claim 5 , wherein the stainless steel fibers are arranged essentially parallel into bundles. 
     
     
         7 . A gas burner according to  claim 6 , wherein the bundles are knitted, braided, or woven. 
     
     
         8 . A gas burner according to  claim 1 , wherein the metal burner membrane comprises a foraminated plate or sheet. 
     
     
         9 . A gas burner according to  claim 8 , wherein stainless steel fibers are disposed outside of the transition region, the base section and the closing section. 
     
     
         10 . A gas burner according to  claim 1 , wherein the metal burner membrane comprises a fabric of stainless steel fibers that is supported by a deep drawn or stamped wire mesh, the stainless steel fibers being braided, knitted, or woven. 
     
     
         11 . A gas burner according to  claim 10 , wherein the wire mesh is integrated into the fabric of stainless steel fibers.