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公开(公告)号:US12071914B2
公开(公告)日:2024-08-27
申请号:US17561621
申请日:2021-12-23
CPC分类号: F02K9/64 , F02K9/46 , F05D2240/35 , F05D2260/213 , F05D2260/232
摘要: A rocket engine system comprising a rocket engine, coolant and a coolant source, propellant and a propellant source, a turbopump, and a heat source. The coolant is pressurized and then heated through a heat source to a supercritical state for augmented heat transfer. The heat source may be a heat exchanger with returning coolant, or a preburner. The rocket engine system may further comprise at least one additional rocket engine with a pump to provide pressure for multiple engine. The rocket engine system may further comprise multiple turbopump shafts for independent control of propellants.
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2.
公开(公告)号:US12025078B2
公开(公告)日:2024-07-02
申请号:US17813312
申请日:2022-07-18
发明人: Joel C. Sercel , Philip J. Wahl , Conrad T. Jensen , James G. Small , Benjamin G. Workinger , Samuel Daugherty-Saunders
IPC分类号: F02K9/64 , B64G1/40 , B64G1/44 , F02K9/42 , F02K9/44 , F02K9/60 , F03H99/00 , F24S20/20 , F24S23/30 , F24S23/70 , F24S70/16
CPC分类号: F02K9/64 , B64G1/401 , B64G1/409 , B64G1/446 , F02K9/42 , F02K9/44 , F02K9/60 , F03H99/00 , F24S20/20 , F24S23/30 , F24S23/70 , F24S70/16 , F24S2023/832
摘要: Omnivorous solar thermal thrusters and adjustable cooling structures are disclosed. In one aspect, a solar thermal rocket engine includes a solar thermal thruster configured to receive solar energy and one or more propellants, and heat the one or more propellants using the solar energy to generate thrust. The solar thermal thruster is further configured to use a plurality of different propellant types, either singly or in combination simultaneously. The solar thermal thruster is further configured to use the one or more propellants in both liquid and gaseous states. Related structures can include valves and variable-geometry cooling channels in thermal contact with a thruster wall.
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公开(公告)号:US11976614B1
公开(公告)日:2024-05-07
申请号:US18457301
申请日:2023-08-28
申请人: Pivotal Space, Inc.
发明人: Lloyd J Droppers
摘要: A rocket propulsion system that may include a supersonic rocket nozzle with a supersonic divergent section, and a heat transfer system configured to transfer heat from the supersonic rocket nozzle to a propellant where a portion of the propellant may be selectively injected, combusted, and expanded in the supersonic nozzle generating an additional thrust. In examples, the heated propellant may be used to power a pump system to feed the rocket engine.
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公开(公告)号:US20240067362A1
公开(公告)日:2024-02-29
申请号:US18271834
申请日:2022-01-11
摘要: An aerospike engine configured to be connected to a liquid methane tank, and to a liquid oxygen tank is provided. The aerospike engine comprises a centerbody including an aerospike nozzle, an external skirt, and a combustion chamber being defined between the external skirt and the centerbody. The centerbody is additively manufactured from one or more copper alloys and has a plurality of centerbody internal cooling channels. The external skirt is additively manufactured from one or more copper alloys and has a plurality of skirt internal cooling channels. The aerospike engine is configured to supply liquid methane and liquid oxygen through the internal cooling channels to the combustion chamber. Also disclosed are stages of a launch vehicle and a launch vehicle comprising such an aerospike engine, as well as methods for re-entry for a re-usable stage of a launch vehicle comprising an aerospike engine.
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公开(公告)号:US20230407821A1
公开(公告)日:2023-12-21
申请号:US18033428
申请日:2021-10-23
摘要: Disclosed herein is a single piece, integrated, light weighted, cost-effective 3D printed engine for space vehicles. FIG. 5 illustrates an integrated engine that comprises a combustion chamber to burn the fuel, an injector plate (504) to inject the fuel to the combustion chamber, an igniter (502) to ignite the fuel mixture, a nozzle (506) to pass hot gas to produce thrust and cooling channels (508) for regenerative cooling, where all these components are fused to form a single piece integrated engine. The engine of the present invention eliminates the need of assembling the individual components. Further, the engine is additively manufactured with high grade aerospace materials. Thus, the cost and mass of the engine is reduced when compared to traditionally manufactured engines, which leads to frequent missions.
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6.
公开(公告)号:US11795891B2
公开(公告)日:2023-10-24
申请号:US18061611
申请日:2022-12-05
发明人: Piotr Wolański , Michał Kawalec
摘要: The subject of the invention is a detonation rocket engine comprising an annular detonation chamber (5) connected to the Aerospike nozzle (4) and lines (2, 3) for supplying propellant components connected to the detonation chamber (5). The detonation chamber (5) has a bottom (9) connecting the inner wall (10) and the outer wall (11) between which the outlet (6) is formed. At the outlet (6) of the detonation chamber (5) there are at least three evenly distributed centring elements (1) connecting the inner wall (10) and the outer wall (11) of the detonation chamber (5), with cooling channels (7) connected to one of the lines (2, 3) supplying the propellant components to the detonation chamber (5).
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公开(公告)号:US20230184196A1
公开(公告)日:2023-06-15
申请号:US17947883
申请日:2022-09-19
申请人: ABL Space Systems
发明人: Harrison O'Hanley , Ryan Kuhn , Jessica Pauley , Oleg Teplyuk
CPC分类号: F02K1/80 , F02K9/64 , F02K9/972 , B23K9/0026
摘要: A coupling system is utilized to form a multi-part rocket engine thrust compartment that maintains inner channels within walls of the thrust compartment for regenerative cooling. The coupling system includes an insert joint arranged between joint faces of a first segment and a second segment. The first segment and the second segment include inner edges that, when jointed together, form an inner wall. The joint insert is installed between the first segment and the second segment after the inner wall is formed and coupled to the first segment and the second segment. The joint faces of the first segment and the second segment include extending feature to form a flow passage along with cavities at least partially defined by the joint insert.
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8.
公开(公告)号:US20230130545A1
公开(公告)日:2023-04-27
申请号:US17813312
申请日:2022-07-18
发明人: Joel C. Sercel , Philip J. Wahl , Conrad T. Jensen , James G. Small , Benjamin G. Workinger , Samuel Daugherty-Saunders
IPC分类号: F02K9/64 , F02K9/60 , B64G1/40 , F24S20/20 , F02K9/42 , F02K9/44 , F24S23/30 , F24S23/70 , F03H99/00 , B64G1/44 , F24S70/16
摘要: Omnivorous solar thermal thrusters and adjustable cooling structures are disclosed. In one aspect, a solar thermal rocket engine includes a solar thermal thruster configured to receive solar energy and one or more propellants, and heat the one or more propellants using the solar energy to generate thrust. The solar thermal thruster is further configured to use a plurality of different propellant types, either singly or in combination simultaneously. The solar thermal thruster is further configured to use the one or more propellants in both liquid and gaseous states. Related structures can include valves and variable-geometry cooling channels in thermal contact with a thruster wall.
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公开(公告)号:US20220145831A1
公开(公告)日:2022-05-12
申请号:US17544220
申请日:2021-12-07
发明人: Aaron Davis , Scott Stegman
摘要: An air-breathing rocket engine in certain embodiments comprises an outer shell and an interior portion situated entirely within the front end of the outer shell. The interior portion includes a funnel-shaped intake and an annular primary combustion chamber between the inner front wall of the shell and the outer surface of the funnel-shaped intake. The intake has a central aperture that is in fluid communication with the throat and exhaust areas within the outer shell. A second circumferential gap is formed between the outer surface of the front inner wall and the inner surface of the front end of the outer shell and is in fluid communication with the throat and exhaust areas within the outer shell. One or more injector ports and one or more ignition ports are situated at the front end of the second circumferential gap.
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公开(公告)号:US11181076B2
公开(公告)日:2021-11-23
申请号:US15059884
申请日:2016-03-03
IPC分类号: F02K9/42 , F02K9/97 , F02K9/60 , F02K9/44 , F02K9/56 , F02K9/64 , F02K9/82 , F02K9/50 , F02K9/52 , F02K9/48 , F02K9/68 , F02C9/58 , B64G1/40
摘要: According to one contemplated embodiment of the rocket engine invention, water is first pumped from a water tank through a rocket nozzle cooling heat exchanger wherein it is evaporated into said superheated steam. A generator supplies electricity to an electrolyzer that electrolyzes superheated steam into gaseous hydrogen and gaseous oxygen. The gaseous hydrogen and gaseous oxygen is employed for forming an annular curtain of secondary combustion in a divergent rocket engine. The secondary combustion gas surrounds a central thrust of combustion gas produced in an upstream combustion chamber by a primary injection of hydrogen/oxygen supplied from a liquid hydrogen tank and liquid oxygen tank. The rocket liquid hydrogen tank and liquid oxygen tank are pressurized by gaseous hydrogen and gaseous oxygen generated by the electrolyzer.
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