Apparatus for heating gases

Claim 1

APPARATUS FOR HEATING A GASEOUS FLUID COMPRISING, A WALL HAVING A DOWNSTREAM FACE AND AN EXTERIOR FACE, SAID WALL HAVING A CIRCULAR OPENING THERETHROUGH, A CYLINDRICAL SHAPED CASING FITTING WITHIN SAID OPENING AND EXTENDING FROM THE EXTERIOR FACE OF SAID WALL, A TUBULAR ELEMENT OF SMALLER DIAMETER THAN SAID CASING ARRANGED SUBSTANTIALLY CONCENTRICALLY THEREWITHIN, A SLEEVE CARRIED BY SAID TUBULAR ELEMENT WITHIN SAID CASING HAVING AN END WITHIN SAID OPENING AND FORMING AN ANNULAR PASSAGE BETWEEN THE CASING AND THE SLEEVE, A RING SHAPED TILE MEMBER FITTING WITHIN SAID SLEEVE AND HAVING AN INNER ANNULAR SURFACE SUBSTANTIALLY FLUSH WITH AN INNER ANNULAR SURFACE OF SAID TUBULAR ELEMENT, MEANS SPACED FROM SAID EXTERIOR FACE JOINING THE CASING WITH THE TUBULAR ELEMENT PROVIDING A CLOSE ANNULAR CHAMBER, MEANS FOR GUIDING A GASEOUS FLUID INTO SAID ANNULAR CHAMBER FOR MOVEMENT THROUGH SAID ANNULAR PASSAGE FOR DISCHARGE AS AN ANNULAR STREAM FROM THE DOWNSTREAM FACE OF SAID WALL, A TUBE OF SMALLER DIAMETER THAN SAID TUBULAR ELEMENT ARRANGED SUBSTANTIALLY CONCENTRICALLY THEREIN, A FUEL BURNER HEAD SUPPORTED BY SAID TUBE WITHIN THE OPENING IN SAID WALL, MEANS FOR SUPPLYING FUEL TO SAID BURNER HEAD, SAID TUBULAR ELEMENT AND SAID TUBE FORMING AN ANNULAR PASSAGE THEREBETWEEN FOR MOVEMENT OF AIR INTO THE PRESENCE OF THE BURNER HEAD, AND SAID BURNER HEAD HAVING DISCHARGE PORTS PROVIDING AN ANNULAR PATTERN OF BURNING FUEL EXTENDING GENERALLY RADIALLY FROM THE BURNER HEAD TO HEAT THE GASEOUS FLUID AS IT IS DISCHARGED FROM SAID ANNULAR PASSAGE.