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公开(公告)号：US11156390B2
公开(公告)日：2021-10-26
申请号：US16026620
申请日：2018-07-03
Applicant: Raytheon Company
Inventor： Theodore J. Conrad , Ryan Yates , Brian Schaefer
Abstract: A cryogenic cooler includes a housing, and first, second, and third actuators. The first actuator includes at least one first voice coil and at least one first magnetic circuit, the at least one first voice coil of the first actuator configured to drive a compressor piston, the first actuator causing vibrations to the housing when driving the compressor piston. The second actuator includes at least one second voice coil and at least one second magnetic circuit, the at least one second voice coil of the second actuator configured to reduce the vibrations to the housing caused by driving the compressor piston. The third actuator includes at least one third voice coil and at least one third magnetic circuit, the third actuator configured to drive a displacer piston. The compressor piston, balance mechanism, and displacer piston are concentrically formed within the cryogenic cooler.
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公开(公告)号：US10520227B2
公开(公告)日：2019-12-31
申请号：US15698940
申请日：2017-09-08
Applicant: Raytheon Company
Inventor： Ryan Yates , Theodore J. Conrad , Brian R. Schaefer
Abstract: A pulse-tube cryocooler includes a compressor piston that is axially aligned with a pulse tube. The compressor piston is an annular piston that has a central hole around its axis. An inertance tube, connected to one end of the pulse tube, runs through the central hole in the compressor piston. The cryocooler also includes a balancer that moves in opposition to the compressor piston, to offset the forces in moving the compressor piston. The balancer may also be axially aligned with the pulse tube, the annular piston, and the inertance tube. The alignment of the compressor piston, the pulse tube, and the inertance tube aligns the forces produced by movement of fluid within the cryocooler.
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3.发明授权公开(公告)号：US10234075B2
公开(公告)日：2019-03-19
申请号：US15426451
申请日：2017-02-07
Applicant: Raytheon Company
Inventor： Theodore J. Conrad , Robert D. Schaefer , Andrew L. Bullard , Brian R. Schaefer , Ryan Yates
Abstract: A system includes a device, a support structure, and a flexure bearing configured to connect the device to the support structure. The flexure bearing includes an outer hub and an inner hub, where the hubs are configured to be secured to the support structure and to the device. The flexure bearing also includes multiple sets of flexure arms connecting the outer hub and the inner hub, where each set of flexure arms includes symmetric flexure arms. The flexure bearing further includes multiple bridges, where each bridge connects one of the flexure arms in one set of flexure arms to one of the flexure arms in an adjacent set of flexure arms.
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4.发明授权Frequency-matched cryocooler scaling for low-cost, minimal disturbance space cooling 有权频率匹配的低温冷却器缩放，用于低成本，最小的扰动空间冷却公开(公告)号：US09551513B2
公开(公告)日：2017-01-24
申请号：US14303036
申请日：2014-06-12
Applicant: Raytheon Company
Inventor： Ryan Yates , Theodore J. Conrad , Andrew L. Bullard
CPC classification number: F25B9/14 , F25B9/145 , F25B2309/001 , F25B2309/1411 , F25B2309/1423 , F25B2400/073 , F25B2500/13 , G01C19/02
Abstract: Components within a cryocooler are scaled and/or configured for operation at a CMG operating frequency (e.g., 100 Hz) rather than at 30 to 70 Hz, matching the exported disturbances of control moment gyroscopes on the same platform and reducing line-of-sight jitter for electro-optic infrared focal plane array sensors. The smaller piston working volume and other reduced component sizes allow the cryocooler to be smaller and lighter than designs operating at lower frequencies. Combined with an advanced regenerator suitable for the higher frequency operation, the cryocooler has improved cooling efficiency over such lower frequency designs.
Abstract translation: 低温冷却器内部的部件按比例缩放和/或配置为在CMG工作频率（例如，100Hz）而不是在30至70Hz的条件下操作，与控制力矩陀螺仪在同一平台上导出的扰动相匹配，并减少视线 电光红外焦平面阵列传感器的抖动。 较小的活塞工作容积和其他减小的部件尺寸允许低温冷却器比在较低频率下工作的设计更小更轻。 结合先进的再生器适用于较高频率的操作，低温制冷机在这种较低频率设计中具有改进的冷却效率。
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公开(公告)号：US10337577B2
公开(公告)日：2019-07-02
申请号：US15344434
申请日：2016-11-04
Applicant: Raytheon Company
Inventor： Andrew L. Bullard , Shane E. Wilson , Ricardo A. Aguilera , Ryan Yates
Abstract: A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
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Patent Agency Ranking
公开(公告)号：US20190078814A1
公开(公告)日：2019-03-14
申请号：US15698940
申请日：2017-09-08
Applicant: Raytheon Company
Inventor： Ryan Yates , Theodore J. Conrad , Brian R. Schaefer
Abstract: A pulse-tube cryocooler includes a compressor piston that is axially aligned with a pulse tube. The compressor piston is an annular piston that has a central hole around its axis. An inertance tube, connected to one end of the pulse tube, runs through the central hole in the compressor piston. The cryocooler also includes a balancer that moves in opposition to the compressor piston, to offset the forces in moving the compressor piston. The balancer may also be axially aligned with the pulse tube, the annular piston, and the inertance tube. The alignment of the compressor piston, the pulse tube, and the inertance tube aligns the forces produced by movement of fluid within the cryocooler. This makes it easier to cancel mechanical forces produced by the cryocooler in operation, since all (or most) of the forces are in a single axial direction.
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公开(公告)号：US20180128336A1
公开(公告)日：2018-05-10
申请号：US15344434
申请日：2016-11-04
Applicant: Raytheon Company
Inventor： Andrew L. Bullard , Shane E. Wilson , Ricardo A. Aguilera , Ryan Yates
IPC: F16F1/22
CPC classification number: F16F1/22 , F16F1/025 , F16F1/18 , F16F3/02 , F16F2228/066 , F16F2238/022 , F16M11/24
Abstract: A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
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公开(公告)号：US11015669B2
公开(公告)日：2021-05-25
申请号：US16460816
申请日：2019-07-02
Applicant: Raytheon Company
Inventor： Andrew L. Bullard , Shane E. Wilson , Ricardo A. Aguilera , Ryan Yates
Abstract: A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
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公开(公告)号：US20190323572A1
公开(公告)日：2019-10-24
申请号：US16460816
申请日：2019-07-02
Applicant: Raytheon Company
Inventor： Andrew L. Bullard , Shane E. Wilson , Ricardo A. Aguilera , Ryan Yates
Abstract: A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
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公开(公告)号：US20190003745A1
公开(公告)日：2019-01-03
申请号：US16026620
申请日：2018-07-03
Applicant: Raytheon Company
Inventor： Theodore J. Conrad , Ryan Yates , Brian Schaefer
IPC: F25B9/14 , H02K41/035
Abstract: A cryogenic cooler includes a housing, and first, second, and third actuators. The first actuator includes at least one first voice coil and at least one first magnetic circuit, the at least one first voice coil of the first actuator configured to drive a compressor piston, the first actuator causing vibrations to the housing when driving the compressor piston. The second actuator includes at least one second voice coil and at least one second magnetic circuit, the at least one second voice coil of the second actuator configured to reduce the vibrations to the housing caused by driving the compressor piston. The third actuator includes at least one third voice coil and at least one third magnetic circuit, the third actuator configured to drive a displacer piston. The compressor piston, balance mechanism, and displacer piston are concentrically formed within the cryogenic cooler.
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