Lean prechamber outflow combustor with continuous pilot flow

Details Lean prechamber outflow combustor with continuous pilot flow Lean prechamber outflow combustor with continuous pilot flow

F - Mech Eng,Light,Heat,Weapons

23

R

60/175

F23R 3/30 (2006.01) F02C 7/264 (2006.01) F23R 3/34 (2006.01)

Patent

CA 1136434

D-4196 C-3157 LEAN PRECHAMBER OUTFLOW COMBUSTOR WITH CONTINUOUS PILOT FLOW Abstract of the Disclosure A combustor assembly for an automotive gas turbine engine includes a continuously ignited, pilot flame tube supported on a combustor dome immediately downstream of a prevaporization prechamber with a fuel and air swirler. The pilot flame tube has an air swirler and fuel nozzle supported on an interior bulkhead and is associated with a fuel system that maintains a shielded pilot flame to prevent flame- out of flammable air/fuel mixtures in the main reaction chamber of the combustor; the fuel system supplies greater fuel to the pilot flame tube at engine fuel start and stop to produce an extended flame plume that extends into the reaction chamber to burn residuum of fuel when the air/fuel ratio in the main reaction chamber mixture is below the flammability limit of the fuel.

353863

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