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公开(公告)号：WO2021002903A3
公开(公告)日：2021-01-07
申请号：PCT/US2020/025948
申请日：2020-03-31
Applicant: BWXT ADVANCED TECHNOLOGIES LLC
Inventor： FISHER, Benjamin D. , SALASIN, John R. , GRAMLICH, Craig D. , WITTER, Jonathan K.
Abstract: Nuclear propulsion fission reactor structure has an active core region including fuel element structures, a reflector with rotatable neutron absorber structures (such as drum absorbers), and a core former conformal mating the outer surface of the fuel element structures to the reflector. Fuel element structures are arranged abutting nearest neighbor fuel element structures in a tri-pitch design. Cladding bodies defining coolant channels are inserted into and joined to lower and upper core plates to from a continuous structure that is a first portion of the containment structure. The nuclear propulsion fission reactor structure can be incorporated into a nuclear thermal propulsion engine for propulsion applications, such as space propulsion.
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公开(公告)号：WO2021002903A2
公开(公告)日：2021-01-07
申请号：PCT/US2020/025948
申请日：2020-03-31
Applicant: BWXT ADVANCED TECHNOLOGIES LLC
Inventor： FISHER, Benjamin D. , SALASIN, John R. , GRAMLICH, Craig D. , WITTER, Jonathan K.
IPC: G21D5/02
Abstract: Nuclear propulsion fission reactor structure has an active core region including fuel element structures, a reflector with rotatable neutron absorber structures (such as drum absorbers), and a core former conformal mating the outer surface of the fuel element structures to the reflector. Fuel element structures are arranged abutting nearest neighbor fuel element structures in a tri-pitch design. Cladding bodies defining coolant channels are inserted into and joined to lower and upper core plates to from a continuous structure that is a first portion of the containment structure. The nuclear propulsion fission reactor structure can be incorporated into a nuclear thermal propulsion engine for propulsion applications, such as space propulsion.
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Patent Agency Ranking
公开(公告)号：WO2022081244A1
公开(公告)日：2022-04-21
申请号：PCT/US2021/045638
申请日：2021-08-12
Applicant: BWXT ADVANCED TECHNOLOGIES LLC , BWXT NUCLEAR ENERGY, INC.
Inventor： BARRINGER, Eric A. , JENSEN, Russell R. , GUSTAFSON, Jeremy L. , ALES, Matt , BERGMAN, Joshua J. , SWANSON, Ryan T. , WITTER, Jonathan K. , GALICKI, Danny , INMAN, James B. , KRECICKI, Matt , RIDGEWAY, Roger
Abstract: Carbide-based fuel assembly includes outer structural member of ceramic matrix composite material (e.g., SiC-SiC composite), insulation layer of porous refractory ceramic material (e.g., zirconium carbide with open-cell foam structure or fibrous zirconium carbide), and interior structural member of refractory ceramic-graphite composite material (e.g., zirconium carbide-graphite or niobium carbide-graphite). Spacer structures between various layers provide a defined and controlled spacing relationship. A fuel element bundle positioned between support meshes includes a plurality of distributively arranged fuel elements or a solid, unitary fuel element with coolant channels, each having a fuel composition including high assay, low enriched uranium (HALEU). Fuel assemblies are distributively arranged in a moderator block and the upper end of the outer structural member is attached to a metallic inlet tube for hydrogen propellant and the lower end of the outer structural member is interfaced with a support plate, forming a NTP reactor.
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公开(公告)号：WO2022081242A1
公开(公告)日：2022-04-21
申请号：PCT/US2021/045634
申请日：2021-08-12
Applicant: BWXT ADVANCED TECHNOLOGIES LLC , BWXT NUCLEAR ENERGY, INC.
Inventor： BARRINGER, Eric A. , JENSEN, Russell R. , GUSTAFSON, Jeremy L. , ALES, Matt , BERGMAN, Joshua J. , SWANSON, Ryan T. , WITTER, Jonathan K. , GALICKI, Danny , INMAN, James B. , KRECICKI, Matt , RIDGEWAY, Roger
Abstract: Carbide-based fuel assembly includes outer structural member of ceramic matrix composite material, the interior surface of which is lined in higher temperature regions with an insulation layer of porous refractory ceramic material. A continuous insulation layer extends the length of the fuel assembly or separate insulation layer sections have a thickness increasing step-wise along the length of the fuel assembly from upper (inlet) section towards bottom (outlet) section. A fuel element positioned inward of the insulation layer and between support meshes has a fuel composition including HALEU and has the form of a plurality of individual elongated fuel bodies or one or more fuel monolith bodies containing coolant flow channels. Fuel assemblies are distributively arranged in a moderator block, with upper end of the outer structural member attached to an inlet for propellant and lower end of the outer structural member operatively interfaced with a nozzle forming a NTP reactor.
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公开(公告)号：EP4555536A1
公开(公告)日：2025-05-21
申请号：EP23840240.8
申请日：2023-07-12
Applicant: BWXT Advanced Technologies LLC
Inventor： FISHER, Benjamin D. , GRAMLICH, Craig D. , PIVOVAR, Ross E. , SALASIN, John R. , WITTER, Jonathan K.
IPC: G21C15/257 , G21C1/32 , G21C3/04 , F28D15/02
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公开(公告)号：EP4226396A1
公开(公告)日：2023-08-16
申请号：EP21880731.1
申请日：2021-08-12
Applicant: BWXT Advanced Technologies LLC , BWXT Nuclear Energy, Inc.
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公开(公告)号：EP4225649A1
公开(公告)日：2023-08-16
申请号：EP21880729.5
申请日：2021-08-12
Applicant: BWXT Advanced Technologies LLC , BWXT Nuclear Energy, Inc.
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