Method for gas lancing

  • US 4,927,357 A
  • Filed: 10/12/1989
  • Issued: 05/22/1990
  • Est. Priority Date: 04/01/1988
  • Status: Expired due to Term
First Claim
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1. In a method of heating a surface comprising providing a burner system which produces a flame extending over said surface and providing one or more reaction-rate enhancing gas lances between the burner system and the surface, said lances producing a jet of said gas between the flame and the surface, the improvement comprising emitting said reaction rate enhancing gas such that the point of exit of the gas taken perpendicular to the longitudinal axis of the flow of the gas is essentially non-circular, thereby enhancing the uniformity of heating by producing a jet which creates an aerodynamically reduced pressure field thereby deforming the flame and displacing the flame toward the surface.

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