Combustor for rocket engine and method for manufacturing it
AssigneeInterStellar Technologies Corporation
InventorHiroshi Tamemasa
Life of this patent
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Abstract
A combustor which can be manufactured without requiring large-scale equipment and with a small number of processes and has a cooling fluid flow path sealed with high reliability. The combustor includes an inner cylinder made of metal constituting a combustion chamber, a cooling fluid flow path formed on an outer surface of the inner cylinder, and a sealing layer covering the outer surface of the inner cylinder to seal the cooling fluid flow path. The sealing layer is constituted by a bonded body of metal wires wound around the outer surface of the inner cylinder and metallurgically bonded to each other, and the sealing layer is bonded to the outer surface of the inner cylinder by metallurgical bonding.
Claims12
A combustor for a rocket engine comprising:
- an inner cylinder made of metal constituting a combustion chamber;
- a cooling fluid flow path formed on an outer surface of the inner cylinder;
- and
- a sealing layer covering the outer surface of the inner cylinder to seal the cooling fluid flow path,
- wherein the sealing layer comprises a first layer of flat circular metal wires having long and short sides wound around the outer surface of the inner cylinder, the metal wires of the first layer being diffusion-bonded to each other via one side of the long and short sides and to the inner cylinder via the other side of the long and short sides so as to form one integrally bonded product.
A method for manufacturing a combustor for a rocket engine comprising:
- forming a cooling fluid flow path on an outer surface of an inner cylinder made of metal that constitute a combustion chamber;
- winding a first layer of flat circular metal wires having long and short sides around the outer surface of the inner cylinder;
- and
- sealing the cooling fluid flow path by diffusion-bonding the metal wires of the first layer to each other via one side of the long and short sides and to the inner cylinder via the other side of the long and short sides by heating the inner cylinder, around which the metal wires are wound, to a temperature equal to or higher than a diffusion temperature of the metal wires so as to form one integrally bonded product.
Dependencies are inferred from the claim text.