Hot air generating tool

Abstract

A hot air generating tool, comprising a tubular body for aspirating and discharging drying air, with which elements for heating the air and a handle are associated. The air heating elements are constituted by a Ranque-Hilsch vortex tube device supplied with compressed air.

1 - 5 . (canceled) 
   
   
       6 . A hot air generating tool, comprising a tubular body for aspirating and discharging drying air, with which means for heating said air and a handle are associated, said air heating means being constituted by a Ranque-Hilsch vortex tube device supplied with compressed air, wherein said Ranque-Hilsch vortex tube device is integrated in said handle. 
   
   
       7 . The tool according to  claim 6 , wherein said vortex tube device comprises a cylindrical chamber, in which compressed air is injected in a radial direction from a lateral port, a first cylindrical tubular element for feeding hot air protruding from said chamber coaxially thereto on one side, a second tubular element which is shorter than the first tubular element, for emitting cold air, protruding coaxially from said chamber coaxially thereto at the other side, a valve for adjusting the flow-rate of pressurized hot air being provided at the end of said first tube. 
   
   
       8 . The tool according to  claim 7 , wherein said first tubular element passes through said handle and leads into said tubular body for aspirating and discharging air. 
   
   
       9 . The tool according to  claim 6 , wherein said tubular body comprises a first central part, with which the handle is jointly connected, a second intake part, with a frustum-shaped internal surface which tapers toward the inside of the tubular body, and a third discharge part, with an outer portion which diverges to provide a Venturi effect. 
   
   
       10 . The tool according to  claim 9 , wherein said third part is screwed to said first part by means of two corresponding threaded portions, an internal thread being provided on said first central part and a complementary external thread being provided on said third discharge part, to adjust the temperature by increasing or decreasing the Venturi effect.