Pilot fuel injection for a wave rotor engine
First Claim
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1. A combustor, comprising:
- a first fuel nozzle for spraying fuel to create a mixture of fuel and oxidizer for combustion;
a rotor having two ends and defining a plurality of enclosed channels, each said channel being adapted and configured to support combustion therein and having a first port at the first end of said rotor and a second port at the second end of said rotor, said rotor being rotatable about an axis;
a first stator proximate to the first end of said rotor, said first stator including at least one inlet adapted and configured to provide flow of the mixture into the first port of a corresponding said channel as said first port rotates into flow communication with said inlet;
a second stator proximate to the second end of said rotor, said first stator including at least one outlet adapted and configured to receive flow of combusted mixture from a second port of a corresponding said channel as said second port rotates into flow communication with said outlet; and
a second fuel nozzle for introducing fuel into at least one said channel intermediate of the first port and the second port.
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Abstract
Apparatus and methods for combustion of fuel. Some embodiments of the inventions include a fuel nozzle which injects fuel into a combustion channel of a wave rotor combustor or a pulse detonation combustor In some embodiments the combustion process includes a backward-propagating detonation wave within a substantially closed channel which compresses discrete quantities of combustible and noncombustible mixture. Yet other embodiments include a precombustion chamber integrated into the wave rotor, the outlet stator or both.
38 Citations
18 Claims
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1. A combustor, comprising:
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a first fuel nozzle for spraying fuel to create a mixture of fuel and oxidizer for combustion; a rotor having two ends and defining a plurality of enclosed channels, each said channel being adapted and configured to support combustion therein and having a first port at the first end of said rotor and a second port at the second end of said rotor, said rotor being rotatable about an axis; a first stator proximate to the first end of said rotor, said first stator including at least one inlet adapted and configured to provide flow of the mixture into the first port of a corresponding said channel as said first port rotates into flow communication with said inlet; a second stator proximate to the second end of said rotor, said first stator including at least one outlet adapted and configured to receive flow of combusted mixture from a second port of a corresponding said channel as said second port rotates into flow communication with said outlet; and a second fuel nozzle for introducing fuel into at least one said channel intermediate of the first port and the second port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A combustor for com busting a mixture of fuel and air, comprising:
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a rotor having two ends and defining a plurality of enclosed channels, each said channel being adapted and configured to support combustion therein and having a first port at the first end of said rotor and a second port at the second end of said rotor, said rotor being rotatable about an axis; a first stator proximate to the first end of said rotor, said first stator including at least one inlet adapted and configured to provide flow of the uncombusted mixture into the first port of a corresponding said channel as said first port rotates into flow communication with said inlet; a second stator proximate to the second end of said rotor, said first stator including at least one outlet adapted and configured to receive flow of combusted mixture from a second port of a corresponding said channel as said second port rotates into flow communication with said outlet; a precombustion chamber in fluid communication with the second port of at least one of said channels, said precombustion chamber having at least one partition separating at least a portion of said precombustion chamber from at least a portion of the one said channel; and wherein combustion in said precombustion chamber ignites the mixture in the one said channel. - View Dependent Claims (15, 16, 17, 18)
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Specification