METHODS AND APPARATUS FOR REDUCING GAS TURBINE ENGINE EMISSIONS

• Main Authors: KASTRUP, DAVID ALLEN, HELD, TIMOTHY JAMES, FORTUNA, DOUGLAS MARTI
• Format: Patent
• Language: English; French
• Published: 07.01.2014
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AIR SUPPLY; BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DRAUGHT-INDUCING; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

A fuel nozzle (50) for a gas turbine engine (10), including a first injection circuit (82) including an annular discharge opening (94), the first injection circuit for injecting liquid fuel downstream from the nozzle into the gas turbine engine; a second injection circuit (84) aligned substantially concentrically with respect to the first injection circuit; and a third injection circuit (86) aligned substantially concentrically with respect to the first injection circuit, the second injection circuit is between the second and third injection circuits, one of the second and third injection circuits for injecting water downstream from the nozzle into the gas turbine engine, one of the second injection circuit and the third injection circuit comprising an annular discharge opening (132).