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公开(公告)号：US20150097048A1
公开(公告)日：2015-04-09
申请号：US14510262
申请日：2014-10-09
Applicant: Massachusetts Institute of Technology , The Government of the United States of America as represented by the Secretary of the Navy
Inventor： Jesse Allen Linnell , Trina Rae Vian , Joseph Renard Morency , Anlong Dai , Mark Eric Bury , Thomas Sebastian , Carlos Andres Aguilar , Joseph John Lacirignola , Jay D. Eversole
CPC classification number: B05B12/082 , A61M15/00 , A61M2209/02 , B05B1/262 , B05B1/341 , B05B7/0483 , B05B7/12 , G01N15/06 , G01N2001/2223 , G01N2001/2893 , G01N2015/0046
Abstract: A feed aerosol comprising detectable particles is injected into a mix-enhancing swirler. Diluting gas is also injected into the mix-enhancing swirler and mixed with the feed aerosol in a swirling motion to form an aerosol with a particle concentration no greater than 1,000 particles per liter. The aerosol is then injected into a mixing chamber, where the aerosol is mixed and dried; the inner diameter of the mixing chamber is at least twice as great as that of the swirl chamber. The aerosol is then emitted through a flow straightener that removes swirl from the flow of the aerosol and passed through a delivery conduit, where the particles are detected and counted; and the particle count is compared with a target count. The respective flows of feed aerosol and diluting gas can then be increased or decreased based on a comparison of the particle count with the target count.
Abstract translation: 将包含可检测颗粒的进料气雾剂注入混合增强旋流器中。 稀释气体也注入到混合增强旋流器中，并以旋转运动与进料气溶胶混合，形成每升不超过1,000个颗粒的颗粒浓度的气溶胶。 然后将气溶胶注入混合室中，其中将气溶胶混合并干燥; 混合室的内径至少是旋流室的两倍。 然后通过流动矫直机发射气溶胶，其从气溶胶的流动中除去涡流，并通过传送导管，其中检测和计数颗粒; 并将粒子数与目标计数进行比较。 然后可以基于粒子数与目标计数的比较来增加或减少进料气溶胶和稀释气体的相应流。
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公开(公告)号：US20210141947A1
公开(公告)日：2021-05-13
申请号：US17002387
申请日：2020-08-25
Applicant: Massachusetts Institute of Technology
Inventor： Peter Sharpe , Keegan Quigley , Thomas Sebastian , Joseph Belarge , Ryan Fontaine , David Maurer
Abstract: Processes for optimizing the geometry of a blade for use in a propeller are disclosed. In one exemplary process, an optimization routine that generates new blade geometries based on structural parameters and calculates performance parameters of each blade geometry, including aerodynamic performance parameters, farfield acoustic parameters, and/or electrical power requirements to operate a propeller having the blade geometry, is performed. The optimization routine receives design parameters and weightings from a user and can use one or more surrogate algorithms to map a design space of the weighted values of the design parameters to find their local minima. The optimization routine then determines an optimized blade geometry using a gradient-based algorithm to generate new blade geometries to explore the minima until the weighted values of the design parameters converge at an optimized blade geometry representing the global minima of the design space.
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Patent Agency Ranking
公开(公告)号：US20190135410A1
公开(公告)日：2019-05-09
申请号：US15803961
申请日：2017-11-06
Applicant: Massachusetts Institute of Technology
Inventor： Thomas Sebastian , Christopher Strem
CPC classification number: B64C11/008 , B64C11/02 , B64C11/18 , B64C11/20 , B64C39/024 , B64C2201/108 , B64C2201/162 , F01D5/141 , F01D5/147 , F01D5/16 , F05D2240/307
Abstract: Toroidal propeller. The propeller includes a hub supporting a plurality of elongate propeller elements in which a tip of a leading propeller element curves into contact with a trailing propeller element to form a closed structure with increased stiffness and reduced acoustic signature.
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公开(公告)号：US11593534B2
公开(公告)日：2023-02-28
申请号：US17002387
申请日：2020-08-25
Applicant: Massachusetts Institute of Technology
Inventor： Peter Sharpe , Keegan Quigley , Thomas Sebastian , Joseph Belarge , Ryan Fontaine , David Maurer
IPC: G06F30/20 , G06F30/10 , G06F111/04 , G06F111/20 , G06F30/25 , G06F30/27 , G06F119/22 , G06F111/00
Abstract: Processes for optimizing the geometry of a blade for use in a propeller are disclosed. In one exemplary process, an optimization routine that generates new blade geometries based on structural parameters and calculates performance parameters of each blade geometry, including aerodynamic performance parameters, farfield acoustic parameters, and/or electrical power requirements to operate a propeller having the blade geometry, is performed. The optimization routine receives design parameters and weightings from a user and can use one or more surrogate algorithms to map a design space of the weighted values of the design parameters to find their local minima. The optimization routine then determines an optimized blade geometry using a gradient-based algorithm to generate new blade geometries to explore the minima until the weighted values of the design parameters converge at an optimized blade geometry representing the global minima of the design space.
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公开(公告)号：US09254500B2
公开(公告)日：2016-02-09
申请号：US14510262
申请日：2014-10-09
Applicant: Massachusetts Institute of Technology , The United States of America as represented by the Secretary of the Navy
Inventor： Jesse Allen Linnell , Trina Rae Vian , Joseph Renard Morency , Anlong Dai , Mark Eric Bury , Thomas Sebastian , Carlos Andres Aguilar , Joseph John Lacirignola , Jay D. Eversole
CPC classification number: B05B12/082 , A61M15/00 , A61M2209/02 , B05B1/262 , B05B1/341 , B05B7/0483 , B05B7/12 , G01N15/06 , G01N2001/2223 , G01N2001/2893 , G01N2015/0046
Abstract: A feed aerosol comprising detectable particles is injected into a mix-enhancing swirler. Diluting gas is also injected into the mix-enhancing swirler and mixed with the feed aerosol in a swirling motion to form an aerosol with a particle concentration no greater than 1,000 particles per liter. The aerosol is then injected into a mixing chamber, where the aerosol is mixed and dried; the inner diameter of the mixing chamber is at least twice as great as that of the swirl chamber. The aerosol is then emitted through a flow straightener that removes swirl from the flow of the aerosol and passed through a delivery conduit, where the particles are detected and counted; and the particle count is compared with a target count. The respective flows of feed aerosol and diluting gas can then be increased or decreased based on a comparison of the particle count with the target count.
Abstract translation: 将包含可检测颗粒的进料气雾剂注入混合增强旋流器中。 稀释气体也注入到混合增强旋流器中，并以旋转运动与进料气溶胶混合，形成每升不超过1,000个颗粒的颗粒浓度的气溶胶。 然后将气溶胶注入混合室中，其中将气溶胶混合并干燥; 混合室的内径至少是旋流室的两倍。 然后通过流动矫直机发射气溶胶，其从气溶胶的流动中除去涡流，并通过传送导管，其中检测和计数颗粒; 并将粒子数与目标计数进行比较。 然后可以基于粒子数与目标计数的比较来增加或减少进料气溶胶和稀释气体的相应流。
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公开(公告)号：US10407156B2
公开(公告)日：2019-09-10
申请号：US15803961
申请日：2017-11-06
Applicant: Massachusetts Institute of Technology
Inventor： Thomas Sebastian , Christopher Strem
Abstract: The propeller includes a hub supporting a plurality of elongate propeller elements in which a tip of a leading propeller element curves into contact with a trailing propeller element to form a closed structure with increased stiffness and reduced acoustic signature.
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公开(公告)号：US09604169B2
公开(公告)日：2017-03-28
申请号：US14664771
申请日：2015-03-20
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Thomas Sebastian , Timothy Stephens
CPC classification number: B01D45/08 , G01N1/40 , G01N1/4077 , G01N2015/0046
Abstract: A discrete bypass particle concentrator can significantly reduce surface fouling and manufacturing cost by including bypass stages after each of concentration stages.
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