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公开(公告)号：US12116957B1
公开(公告)日：2024-10-15
申请号：US17325558
申请日：2021-05-20
发明人： Jason Hundley , Mark Kaufman , Michael McPherson , Jillian Marsh , Matthew Hinton , Dane Fradenburg
摘要： A fuel grain for a rocket, the fuel grain having a plurality of layers of fuel grain material, each layer comprising a plurality of concentric circular structures of different diameter fused together to form a central opening therein, wherein the fuel grain material comprises an ignitable substance. The plurality of layers are stacked and joined securely to form a cylindrical fuel grain with the central opening of each one of the plurality of layers aligned to form a combustion unit extending axially through the fuel grain and bounded by a combustion surface, and wherein the fuel grain is configured to permit mixing of heterogenous materials to enhance thrust performance.
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公开(公告)号：US12104558B1
公开(公告)日：2024-10-01
申请号：US18581297
申请日：2024-02-19
发明人： Chelsey Hargather , Mark Kaufman , Michael McPherson , Jillian Marsh , Matthew Hinton , Dane Fradenburg , Maureen Gannon , Jason Hundley , Michael Hargather
IPC分类号： F02K9/24 , B29C64/314 , B29C64/371 , B29C64/386 , B33Y10/00 , B33Y40/00 , B33Y50/00 , B33Y70/10 , B33Y80/00 , F02K9/10 , F02K9/18 , F02K9/72 , B29K55/02 , B29L31/20
CPC分类号： F02K9/24 , B29C64/314 , B29C64/371 , B29C64/386 , B33Y10/00 , B33Y40/00 , B33Y50/00 , B33Y70/10 , B33Y80/00 , F02K9/10 , F02K9/18 , F02K9/72 , B29K2055/02 , B29L2031/20 , F05D2220/80 , F05D2230/30
摘要： A method of making a fuel grain for use in a rocket motor, the method comprising blending a first energetic nanoscale metallic compound and a second compound suitable to form a feedstock material for use in an additive manufacturing apparatus, the additive manufacturing apparatus operatively connected to a computing system, that provides additive manufacturing printing instructions to the additive manufacturing apparatus, permitting construction of an autonomously designed and optimized rocket fuel grain section; wherein the stochastic deposition simulation-assisted fuel grain geometries further comprise a plurality of agglutinated layers of solidified fuel grain compound, each layer of the plurality of layers comprising a plurality of blended and radially displaced beads of different radii, said radial displacement optionally optimized via competitive simulation programs, and wherein the system continuously mixes constituent materials in an inline/static mixer, with viscosity controlled via particle size variations, and material is deposited in a controlled atmosphere or vacuum.
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公开(公告)号：US11913410B1
公开(公告)日：2024-02-27
申请号：US17325565
申请日：2021-05-20
发明人： Chelsey Hargather , Mark Kaufman , Michael McPherson , Jillian Marsh , Matthew Hinton , Dane Fradenburg , Maureen Gannon , Jason Hundley , Michael Hargather
IPC分类号： F02K9/24 , B29C64/314 , B33Y70/10 , F02K9/10 , B29C64/386 , B29C64/371 , B33Y40/00 , B33Y50/00 , F02K9/72 , F02K9/18 , B29L31/20 , B29K55/02
CPC分类号： F02K9/24 , B29C64/314 , B29C64/371 , B29C64/386 , B33Y40/00 , B33Y50/00 , B33Y70/10 , F02K9/10 , F02K9/18 , F02K9/72 , B29K2055/02 , B29L2031/20
摘要： A method of making a fuel grain for use in a rocket motor, the method comprising blending a first energetic nanoscale metallic compound and a second compound suitable to form a feedstock material for use in an additive manufacturing apparatus, the additive manufacturing apparatus operatively connected to a computing system, that provides additive manufacturing printing instructions to the additive manufacturing apparatus, permitting construction of an autonomously designed and optimized rocket fuel grain section; wherein the stochastic deposition simulation-assisted fuel grain geometries further comprise a plurality of agglutinated layers of solidified fuel grain compound, each layer of the plurality of layers comprising a plurality of blended and radially displaced beads of different radii, said radial displacement optionally optimized via competitive simulation programs, and wherein the system continuously mixes constituent materials in an inline/static mixer, with viscosity controlled via particle size variations, and material is deposited in a controlled atmosphere or vacuum.
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