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公开(公告)号：US12054433B2
公开(公告)日：2024-08-06
申请号：US17018921
申请日：2020-09-11
申请人： General Atomics
发明人： Jiping Zhang , Austin Travis , Jonas Opperman , George Jacobsen
IPC分类号： C04B35/80 , C04B35/628 , C04B35/65 , C04B35/657
CPC分类号： C04B35/80 , C04B35/62839 , C04B35/62863 , C04B35/62886 , C04B35/65 , C04B35/657 , C04B2235/3826 , C04B2235/5244 , C04B2235/5252 , C04B2235/5436 , C04B2235/5454 , C04B2235/616
摘要： Disclosed are techniques and methods for producing silicon carbide and ceramic matrix composites from hydrocarbons. In one aspect, a method includes preforming a shape using silicon carbide fibers placed into a chamber, evacuating the chamber causing a silicon and polymer slurry to enter the chamber, and pressurizing the chamber causing the silicon and polymer slurry to permeate the silicon carbide fibers. The method includes heating the chamber to cause pyrolysis of the polymer and a hydrocarbon passed into the chamber into carbon and hydrogen gas. The carbon from the pyrolyzed polymer and hydrocarbon provide a coating of carbon on the silicon in the silicon and polymer slurry. The method includes heating the chamber to a higher temperature causing the silicon to melt and react with the carbon to form silicon carbide. The formed silicon carbide and the silicon carbide fibers form the ceramic matrix composite.
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公开(公告)号：US20230311422A1
公开(公告)日：2023-10-05
申请号：US18206965
申请日：2023-06-07
IPC分类号： B29C64/393 , B29C64/118 , B29C64/209 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B29C64/40 , B29C64/106
CPC分类号： B29C64/393 , B29C64/118 , B29C64/209 , B33Y50/02 , B33Y10/00 , B33Y30/00 , B29C64/40 , B29C64/106
摘要： A system for manufacturing a thermoplastic object may include a robotic arm configured to dispense thermoplastic material, a support apparatus, a computing device and an imaging system. The imaging system may scan thermoplastic material dispensed by the first robotic arm and create a three-dimensional scan model. The model may be compared to a computer model profile to determine if the dispensed material requires adjustment. If the dispensed material requires adjustment, the computing device may adjust the robotic arm or the support apparatus.
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公开(公告)号：US11774291B1
公开(公告)日：2023-10-03
申请号：US17519423
申请日：2021-11-04
发明人： Darren A. Miller , Adam B. Geboff
摘要： Some embodiments provide imaging polarimeter systems comprising: a polarization modulator system configured to modulate a polarization state of an incident beam at a repetition frequency, and outputting a polarized modulated beam; a polarizer positioned to produce an intensity modulated beam; and a detector system comprising: an optical sensor array; a digital read-out integrated circuit (DROIC); and a polarization state system; wherein the optical sensor array is optically aligned with at least a portion of the beam path such that the intensity modulated beam impinges on the sensor array; wherein the DROIC, for each pixel of the optical sensor array, is configured to separate, over time and within an integration frame rate, sets of photo-generated counts; and wherein the polarization state system is configured to identify a series of polarization states for each pixel based on the sets of photo-generated counts and according to the integration frame rate.
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公开(公告)号：US20230150691A1
公开(公告)日：2023-05-18
申请号：US17455376
申请日：2021-11-17
发明人： Michael Joseph Allwein , James William Groves , Kevin David Koller , Ryan Bylard , Roy Hultenius
CPC分类号： B64F1/029 , B64C39/024 , B64C2201/182
摘要： Features for in-flight recovery of an unmanned aerial vehicle (UAV). A towline may be deployed by a host aircraft in-flight to recover an in-flight target UAV. The towline or portion thereof may be oriented nearly vertical. The towline may have a fitting thereon. A capture mechanism on the target UAV may have one or more deployable flaps that engage with the near vertical towline and fitting. The flaps may stow to secure the target aircraft to the towline and fitting. The host aircraft may then retract the towline to pull in the target UAV to the host aircraft using a hoist system having a winch. A latching system located in a pylon of the host aircraft, which may be under a wing, may have a towline connector that engages with and secures the target UAV. The host aircraft may have multiple hoist systems for deployment and/or recovery of multiple target UAV's.
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公开(公告)号：US20230150668A1
公开(公告)日：2023-05-18
申请号：US17455383
申请日：2021-11-17
CPC分类号： B64D3/02 , B64C39/024 , B64C2201/021 , B64C2201/206
摘要： Features for in-flight recovery of an unmanned aerial vehicle (UAV). A towline may be deployed by a host aircraft in-flight to recover an in-flight target UAV. The towline or portion thereof may be oriented nearly vertical. The towline may have a fitting thereon. A capture mechanism on the target UAV may have one or more deployable flaps that engage with the near vertical towline and fitting. The flaps may stow to secure the target aircraft to the towline and fitting. The host aircraft may then retract the towline to pull in the target UAV to the host aircraft using a hoist system having a winch. A latching system located in a pylon of the host aircraft, which may be under a wing, may have a towline connector that engages with and secures the target UAV. The host aircraft may have multiple hoist systems for deployment and/or recovery of multiple target UAV's.
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公开(公告)号：US11530031B2
公开(公告)日：2022-12-20
申请号：US17196589
申请日：2021-03-09
摘要： A folding trailing arm landing gear assembly having a main fitting configured to couple to a hinge positioned at a proximal end; a swing arm rotatably coupled at a proximal end to a distal end of the main fitting; a shock coupled at a distal end to a distal end of the swing arm; a bellcrank coupled at a distal end to a proximal end of the shock, and coupled at a proximal end to the main fitting; and a wheel coupled to the swing arm.
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公开(公告)号：US11473520B2
公开(公告)日：2022-10-18
申请号：US16827142
申请日：2020-03-23
摘要： A control system for an aero compression combustion drive assembly, the aero compression combustion drive assembly having an engine member, a transmission member and a propeller member, the control system including a sensor for sensing a pressure parameter in each of a plurality of compression chambers of the engine member, the sensor for providing the sensed pressure parameter to a control system device, the control system device having a plurality of control programs for effecting selected engine control and the control system device acting on the sensed pressure parameter to effect a control strategy in the engine member A control method is further included.
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公开(公告)号：US11444499B1
公开(公告)日：2022-09-13
申请号：US16655747
申请日：2019-10-17
申请人： GENERAL ATOMICS
发明人： Christopher D. Higgins , Herman Schlicht, III , James R. Vinson , Timothy Jones , Daniel Stanford
IPC分类号： H02K1/26
摘要： A rotor for a rotating electric machine is described. Embodiments of the apparatus may include a rotor core comprising a plurality of slots, the rotor core comprising a circumference, a first winding comprising a first termination end exiting the rotor core at a first of the plurality of slots, a second winding comprising a second termination end exiting the rotor core at a second of the plurality of slots, wherein the second of the plurality of slots is 120 degrees around the circumference of the rotor core relative to the first of the plurality of slots, and a third winding comprising a third termination end exiting the rotor core at a third of the plurality of slots, wherein the third of the plurality of slots is 240 degrees around the circumference of the rotor core relative to the first of the plurality of slots.
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公开(公告)号：US11428157B2
公开(公告)日：2022-08-30
申请号：US16632783
申请日：2018-07-20
IPC分类号： F02B75/24 , B01D45/12 , F01M13/04 , F01P3/02 , F01P3/18 , F01P7/14 , F02B61/04 , F02F1/14 , F02F1/24 , F02F7/00 , F01P7/16 , F02F1/10 , F02B75/18
摘要： A ferritic aero diesel engine. The ferritic aero diesel engine includes an iron crankcase, a steel crankshaft and eight steel piston assemblies. The iron crankcase has a flat, horizontally opposed eight cylinder arrangement with a first set of cylinder walls defining a first set of cylinders in a first bank and a second set of cylinder walls defining a second set of cylinders in an opposed second bank. The steel crankshaft is rotatably mounted at least partially within the iron crankcase. Each of the steel piston assemblies of the plurality of steel piston assemblies is received within a respective cylinder of the iron crankcase and is coupled to the steel crankshaft. The first and second sets of cylinder walls have a minimum wall thickness of between approximately 4.8 and 5.2 mm.
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公开(公告)号：US20220081368A1
公开(公告)日：2022-03-17
申请号：US17018921
申请日：2020-09-11
申请人： General Atomics
发明人： Jiping Zhang , Austin Travis , Jonas Opperman , George Jacobsen
IPC分类号： C04B35/80 , C04B35/628 , C04B35/65 , C04B35/657
摘要： Disclosed are techniques and methods for producing silicon carbide and ceramic matrix composites from hydrocarbons. In one aspect, a method includes preforming a shape using silicon carbide fibers placed into a chamber, evacuating the chamber causing a silicon and polymer slurry to enter the chamber, and pressurizing the chamber causing the silicon and polymer slurry to permeate the silicon carbide fibers. The method includes heating the chamber to cause pyrolysis of the polymer and a hydrocarbon passed into the chamber into carbon and hydrogen gas. The carbon from the pyrolyzed polymer and hydrocarbon provide a coating of carbon on the silicon in the silicon and polymer slurry. The method includes heating the chamber to a higher temperature causing the silicon to melt and react with the carbon to form silicon carbide. The formed silicon carbide and the silicon carbide fibers form the ceramic matrix composite.
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