Closed-loop cooling system for a hydrogen/oxygen based combustor
First Claim
1. An apparatus for cooling a hydrogen/oxygen based combustor for an underwater vessel, said apparatus comprising:
- a constant volume combustor system having a combustion chamber in which a combustion reaction of hydrogen and oxygen produces steam;
a condenser for condensing the steam from the combustion chamber to water; and
means for injecting the water from the condenser into the combustor to absorb heat from the combustion chamber.
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Accused Products
Abstract
A closed-loop cooling system is provided for a hydrogen/oxygen based combustor. A combustion reaction between hydrogen and oxygen in the combustor produces steam. The steam is used to generate work from a turbine shaft, which is used to drive a propulsion system for the underwater vessel. After the steam passes through the turbine, the steam is cooled back to liquid water by a condenser that uses a seawater cooling loop to cool the steam into cold water. The cold water is then injected into the combustor, and pumped into passages along the walls of the combustor, thus absorbing the heat. The cold water absorbs this heat until it becomes hot water or steam, which is then injected into the combustor with the hydrogen and oxygen to act as a diluent, thus reducing the reaction temperature of the hydrogen/oxygen combustion reaction. The reaction produces more steam, and the cycle repeats.
61 Citations
33 Claims
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1. An apparatus for cooling a hydrogen/oxygen based combustor for an underwater vessel, said apparatus comprising:
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a constant volume combustor system having a combustion chamber in which a combustion reaction of hydrogen and oxygen produces steam; a condenser for condensing the steam from the combustion chamber to water; and means for injecting the water from the condenser into the combustor to absorb heat from the combustion chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for cooling a hydrogen/oxygen based combustor for an underwater vessel, said apparatus comprising:
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a combustor having a combustion chamber in which a combustion reaction of hydrogen and oxygen produces steam; a condenser for condensing the steam from the combustion chamber to water;
means for injecting the water from the condenser into the combustor to absorb heat from the combustion chamber; andmeans for injecting hot water or steam into the combustion chamber, said hot water or steam being formed by the absorption of heat by the water. - View Dependent Claims (16)
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17. A closed-loop cooling method for cooling a hydrogen/oxygen based combustor for an underwater vessel, the method comprising:
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initiating a constant volume combustion reaction between hydrogen and oxygen in a combustion chamber in said combustor to form steam; condensing the steam from the combustion chamber into water; and injecting the water into the combustor to absorb heat from the combustion chamber. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A closed-loop cooling method for cooling a hydrogen/oxygen based combustor for an underwater vessel, the method comprising:
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initiating a constant volume combustion reaction between hydrogen and oxygen in a combustion chamber in said combustor to form steam; condensing the steam from the combustion chamber into water; injecting the water into the combustor to absorb heat from the combustion chamber; and injecting hot water or steam into the combustion chamber, said hot water or steam being formed by the absorption of heat by the water. - View Dependent Claims (31)
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32. An apparatus for cooling a hydrogen/oxygen based combustor for an underwater vessel, said apparatus comprising:
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a combustor having a combustion chamber in which a combustion reaction of hydrogen and oxygen produces steam; a condenser for condensing the steam from the combustion chamber to water; means for injecting the water from the condenser into the combustor to absorb heat from the combustion chamber; means for ducting said steam from said combustor to a turbine to rotate a shaft of said turbine; and a gear and clutch system that uses said rotating turbine shaft to turn gear sets of said gear and clutch system to drive a propulsion system for said underwater vessel.
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33. A closed-loop cooling method for cooling a hydrogen/oxygen based combustor for an underwater vessel, the method comprising:
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initiating a constant volume combustion reaction between hydrogen and oxygen in a combustion chamber in said combustor to form steam; condensing the steam from the combustion chamber into water; injecting the water into the combustor to absorb heat from the combustion chamber; ducting said steam from said combustor to a turbine to rotate a shaft of said turbine; and using said rotating turbine shaft to turn gear sets to drive a propulsion system for said underwater vessel.
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Specification