METHOD AND APPARATUS FOR TAILORING THE EQUIVALENCE RATIO IN A VALVED PULSE DETONATION COMBUSTOR
First Claim
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1. A pulse detonation combustion system, comprising:
- at least one pulse detonation combustor tube;
an air flow valve which directs an air flow into said at least one pulse detonation combustor tube, wherein said air flow assembly changes a rate of change of said air flow into said pulse detonation combustor tube during a fill stage of said pulse detonation combustor tube;
a fuel flow control valve which directs fuel to said at least one pulse detonation combustor tube; and
wherein said air flow valve controls said air flow rate of change with respect to a fuel flow rate of change provided by said fuel flow control valve to control the equivalence ratio within said pulse detonation combustor tube.
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Abstract
A pulse detonation combustor assembly contains at least one PDC tube, a mechanical air flow valve which directs an air flow into the PDC tube, where the mechanical air flow assembly changes a rate of the air flow into the PDC tube during a fill stage of the PDC tube. The assembly also contains a fuel flow control valve which directs fuel to the PDC tube and changes the rate of the fuel flow into PDC tube. By controlling the flow of the fuel and air into the PDC tube the equivalence ratio profile of the PDC tube can be tailored and controlled.
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Citations
24 Claims
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1. A pulse detonation combustion system, comprising:
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at least one pulse detonation combustor tube; an air flow valve which directs an air flow into said at least one pulse detonation combustor tube, wherein said air flow assembly changes a rate of change of said air flow into said pulse detonation combustor tube during a fill stage of said pulse detonation combustor tube; a fuel flow control valve which directs fuel to said at least one pulse detonation combustor tube; and wherein said air flow valve controls said air flow rate of change with respect to a fuel flow rate of change provided by said fuel flow control valve to control the equivalence ratio within said pulse detonation combustor tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pulse detonation combustion system, comprising:
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at least one pulse detonation combustor tube; an air flow valve which directs an air flow into said at least one pulse detonation combustor tube, wherein said air flow assembly changes a rate of change of said air flow into said pulse detonation combustor tube during a fill stage of said pulse detonation combustor tube; a fuel flow control valve which directs fuel to said at least one pulse detonation combustor tube; and wherein said air flow valve comprises a rotating portion having at least one air flow port through which said air flow passes into said at least one pulse detonation combustor tube, wherein rotation of said rotating portion controls an equivalence ratio within said at least one pulse detonation combustor tube such that said equivalence ratio is maintained constant for at least 50% of the fill of said at least one pulse detonation combustor. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification