Convectively cooled, single stage, fully premixed fuel/air combustor for gas turbine engine modules

A gas turbine engine module having apparatus for premixing liquid fuel and compressed air from respective sources for delivery to the combustor of a gas turbine engine module, the apparatus comprising:

• a venturi having an inlet and also having an axis, said venturi inlet being operatively connected to said source of compressed air to define a compressed air flow path into said venturi inlet;
• a fuel nozzle operatively connected to the fuel source and having an exit positioned to deliver a spray of fuel into said venturi inlet region, wherein said nozzle exit is longitudinally spaced upstream from said venturi along said venturi inlet along said venturi axis;
• and
• a perforated member positioned in said compressed air flow path to surround said venturi inlet and said fuel nozzle exit.

Apparatus for premixing liquid fuel and compressed air from respective sources for delivery to the combustor of a gas turbine engine module, the apparatus comprising:

• a venturi having an inlet and also having an axis, said venturi inlet being operatively connected to said source of compressed air to define a compressed air flow path into said venturi inlet;
• a fuel nozzle operatively connected to the fuel source and having an exit positioned to deliver a spray of fuel into said venturi inlet region, wherein said nozzle exit is longitudinally spaced upstream from said venturi inlet along said venturi axis;
• and
• a perforated member positioned in said compressed air flow path to surround said venturi inlet and said fuel nozzle exit,
• wherein said perforated member contacts said venturi inlet around the periphery thereof.

Apparatus for premixing liquid fuel and compressed air from respective sources for delivery to the combustor of a gas turbine engine module, the apparatus comprising:

• a venturi having an inlet and also having an axis, said venturi inlet being operatively connected to said source of compressed air to define a compressed air flow path into said venturi inlet;
• a fuel nozzle operatively connected to the fuel source and having an exit positioned to deliver a spray of fuel into said venturi inlet region, wherein said nozzle exit is longitudinally spaced upstream from said venturi inlet along said venturi axis;
• a perforated member positioned in said compressed air flow path to surround said venturi inlet and said fuel nozzle exit;
• and
• an air valve operatively connected between the compressed air source and said perforated member for controlling the compressed air flow along said compressed air flow path.