F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/170, 60/176
F02C 3/22 (2006.01) B01F 5/04 (2006.01) F23C 13/00 (2006.01) F23D 14/62 (2006.01) F23R 3/28 (2006.01) F23R 3/34 (2006.01) F23R 3/40 (2006.01)
Patent
CA 1318509
51DV3236 MULTIPLE VENTURI TUBE GAS FUEL INJECTOR FOR CATALYTIC COMBUSTOR Abstract of the Disclosure A fuel gas injector for a gas turbine engine employs a plurality of closely spaced parallel venturi tubes disposed in a pair of spaced-apart header plates. The venturi tubes are brazed to the header plates and the perimeters of the header plates are sealed to form a plenum into which pressurized gaseous fuel is supplied. Orifices lead from the plenum to throats of the venturi tubes thereby injecting the gaseous fuel at right angles into the high velocity air stream existing at the throats of the venturi tubes. High shear is imposed on the injected fuel for providing complete mixing with the air. The high air velocity in the throats of the venturi tubes avoids flashback and flameholding. The combined flow from the plurality of venturi tubes mixes downstream thereof to provide a uniform velocity and fuel-air mixture across the flow field. This flow field is suitable for use in a catalyst bed which may be disposed downstream of the venturi tubes.
580772
Beebe Kenneth W.
Company General Electric
Oldham And Wilson
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