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公开(公告)号：US20230228472A1
公开(公告)日：2023-07-20
申请号：US18123347
申请日：2023-03-20
发明人： Takaaki MORIE
CPC分类号： F25B49/02 , F25B9/145 , F25B2309/1427 , F25B2700/15
摘要： The cryocooler includes an expander motor that operates an expander of the cryocooler, an inverter that is configured to control an operation frequency of the expander motor and is operable to drive the expander motor in the steady operation at an operation frequency lower than in the cool-down operation, a current sensor that measures a current supplied from the inverter to the expander motor, and outputs a motor current signal indicating the current; and a processor that monitors the expander motor on a basis of the motor current signal in at least the steady operation.
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公开(公告)号：US07997088B2
公开(公告)日：2011-08-16
申请号：US11719697
申请日：2005-01-13
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F16K31/041 , F25B9/10 , F25B2309/002 , F25B2309/006 , F25B2309/1408 , F25B2309/1411 , F25B2309/14181 , F25B2309/14241 , F25B2309/1427 , Y10T137/87032
摘要： The problems of reducing the torque required to turn the valve, eliminating wear dust, and extending the life of the valves in Gifford McMahon (G-M) type multi-port pulse tube refrigerators are solved by using a rotary spool valve having radial clearance to control flow to and from the regenerator, and using face seal ports on the end of the spool to control flow to and from the pulse tubes.
摘要翻译： 通过使用具有径向游隙的旋转滑阀来解决吉福德·麦克马洪（GM）型多口脉冲管式冰箱中降低扭矩所需扭矩，消除磨损灰尘并延长阀门使用寿命的问题，以控制流量 并且使用在线轴端部的面密封端口来控制流入和流出脉冲管的流量。
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公开(公告)号：US20150047377A1
公开(公告)日：2015-02-19
申请号：US14462987
申请日：2014-08-19
发明人： Jyunya Hamasaki , Toru Maruyama
IPC分类号： F25B49/02
CPC分类号： F25B9/145 , F25B49/00 , F25B49/005 , F25B2309/1411 , F25B2309/1427 , F25B2309/1428 , F25B2500/19 , F25B2700/2115 , H01F6/04
摘要： A cooling system is provided with a GM refrigerator using helium gas, a compressor that compresses the helium gas returned from the GM refrigerator and supply the gas to the GM refrigerator, and a control unit. The control unit includes a measurement acquisition unit that acquires measurements of a plurality of different parameters representing a status of the GM refrigerator, or the compressor, or both, and an analysis unit that conducts multivariate analysis of the measurements acquired by the measurement acquisition unit.
摘要翻译： 冷却系统具有使用氦气的GM冷冻机，压缩机，压缩从GM冷冻机返回的氦气，并将气体供给到GM制冷机和控制单元。 控制单元包括：测量获取单元，其获取代表GM冰箱或压缩机或两者的状态的多个不同参数的测量;以及分析单元，其进行由测量获取单元获取的测量值的多变量分析。
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公开(公告)号：US07614240B2
公开(公告)日：2009-11-10
申请号：US11524877
申请日：2006-09-22
申请人： Bryce Mark Rampersad
发明人： Bryce Mark Rampersad
CPC分类号： F25B9/145 , F25B2309/1407 , F25B2309/1408 , F25B2309/1411 , F25B2309/1423 , F25B2309/1424 , F25B2309/1427
摘要： Method of controlling a pulse tube cryocooler in which the power input to the acoustic source is varied to maintain temperature of a refrigeration load or a temperature that is at least referable to the temperature of the refrigeration load, at a set point temperature. Additionally, the impedance of an inertance network of the pulse tube cryocooler is also adjusted to obtain a maximum cooling power to the refrigeration load at the particular temperature as sensed and the particular power that is being supplied to the acoustic source.
摘要翻译： 控制脉冲管制冷器的方法，其中输入到声源的功率在设定点温度下变化以保持制冷负荷的温度或至少参考制冷负荷的温度的温度。 此外，还调整脉冲管低温冷却器的惯性网络的阻抗，以在感测到的特定温度和被提供给声源的特定功率下获得对制冷负载的最大冷却功率。
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公开(公告)号：US20040045315A1
公开(公告)日：2004-03-11
申请号：US10601887
申请日：2003-06-24
IPC分类号： F25J001/00
CPC分类号： F25B9/145 , F25B2309/1406 , F25B2309/1411 , F25B2309/1423 , F25B2309/1427 , F25B2400/17 , F25J3/04278 , F25J3/04636 , F25J3/04981 , F25J2205/02 , F25J2205/24 , F25J2205/60 , F25J2215/50 , F25J2270/90 , F25J2270/91 , F25J2280/02
摘要： A oxygen-production device includes a pulse-tube cryocooler for cooling air to liquefy oxygen, and a main container for obtaining and retaining liquefied oxygen. The main container has a heat regenerator, a cold head, and a pulse tube of the pulse-tube cryocooler therein. A temperature sensor measures a temperature of the liquefied oxygen, and a control device controls an output of the pulse-tube cryocooler according to the temperature measured by the temperature sensor.
摘要翻译： 氧气生产装置包括用于冷却空气以液化氧气的脉冲管式低温冷却器，以及用于获得和保持液化氧的主容器。 主容器具有其中的脉冲管低温冷却器的热再生器，冷头和脉冲管。 温度传感器测量液化氧的温度，并且控制装置根据由温度传感器测量的温度来控制脉冲管低温冷却器的输出。
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公开(公告)号：US11713912B2
公开(公告)日：2023-08-01
申请号：US17518587
申请日：2021-11-04
发明人： Takayuki Yokodo , Shuji Oyama
CPC分类号： F25B49/02 , F25B9/145 , F25B2309/1427 , F25B2500/26
摘要： A cryocooler includes an expander that includes a cooling stage, an exhaust temperature sensor that measures an exhaust temperature which is a temperature of a working gas exhausted from the expander and outputs an exhaust temperature signal indicating the measured exhaust temperature, and a controller that compares, during execution of initial cooling in which the cooling stage is cooled from an initial temperature to a cryogenic temperature, the measured exhaust temperature to a reference temperature based on the exhaust temperature signal and completes the initial cooling in a case where a temperature difference between the measured exhaust temperature and the reference temperature is within a reference range.
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公开(公告)号：US20080072608A1
公开(公告)日：2008-03-27
申请号：US11524877
申请日：2006-09-22
申请人： Bryce Mark Rampersad
发明人： Bryce Mark Rampersad
CPC分类号： F25B9/145 , F25B2309/1407 , F25B2309/1408 , F25B2309/1411 , F25B2309/1423 , F25B2309/1424 , F25B2309/1427
摘要： Method of controlling a pulse tube cryocooler in which the power input to the acoustic source is varied to maintain temperature of a refrigeration load or a temperature that is at least referable to the temperature of the refrigeration load, at a set point temperature. Additionally, the impedance of an inertance network of the pulse tube cryocooler is also adjusted to obtain a maximum cooling power to the refrigeration load at the particular temperature as sensed and the particular power that is being supplied to the acoustic source.
摘要翻译： 控制脉冲管制冷器的方法，其中输入到声源的功率在设定点温度下变化以保持制冷负荷的温度或至少参考制冷负荷的温度的温度。 此外，还调整脉冲管低温冷却器的惯性网络的阻抗，以在感测到的特定温度和被提供给声源的特定功率下获得对制冷负载的最大冷却功率。
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8.发明授权Double inlet arrangement for pulse tube refrigerator with vortex heat exchanger 失效带涡流换热器的脉冲管制冷机的双入口装置公开(公告)号：US06442947B1
公开(公告)日：2002-09-03
申请号：US09903305
申请日：2001-07-10
申请人： Matthew P. Mitchell
发明人： Matthew P. Mitchell
IPC分类号： F25B900
CPC分类号： F25B9/04 , F25B9/00 , F25B9/145 , F25B2309/1407 , F25B2309/1411 , F25B2309/14241 , F25B2309/1427
摘要： A double inlet passage 70 connects a compressor 40 to remote end 53 of a vortex tube 51 that serves as the heat-rejecting heat exchanger of an orifice pulse tube refrigerator. Double inlet passage 70 includes means 3 for controlling DC flow in that passage. Fluid flows between compressor and reservoir enhance heat-rejecting effectiveness of vortex tube 51.
摘要翻译： 双入口通道70将压缩机40连接到作为孔脉冲管式制冷机的排热热交换器的涡流管51的远端53。 双入口通道70包括用于控制该通道中的直流流动的装置3。 压缩机和储油器之间的流体流动增强了涡流管51的散热效果。
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公开(公告)号：US20240271834A1
公开(公告)日：2024-08-15
申请号：US18288785
申请日：2023-02-28
发明人： Scott BACKHAUS , Ryan SNODGRASS , Vincent KOTSUBO
CPC分类号： F25B9/10 , F25B9/145 , F25B2309/1411 , F25B2309/1418 , F25B2309/1424 , F25B2309/1425 , F25B2309/1427
摘要： This disclosure describes systems, methods, and apparatus for improving the cooldown time, or efficiency of cooling systems, for a low-frequency one or multi-stage pulse-tube refrigerator. More specifically, actuation is performed on the driving frequency of the oscillating pressure and flow, on flow resistance of valves in the acoustic network that terminate the LF-OPTR or LF-DIPTR, and/or on the asymmetric flow resistance of the bypass valves in a LF-DIPTR's flow network. The actuation of these parameters is informed by measurements of the output pressure or output-input differential pressure at the steady flow compressor, the temperature of each stage of the refrigerator, and the temperature difference between the final stage and upper stages of the refrigerator, to name a few non-limiting examples.
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公开(公告)号：US20090151803A1
公开(公告)日：2009-06-18
申请号：US11719697
申请日：2005-01-13
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
CPC分类号： F25B9/145 , F16K31/041 , F25B9/10 , F25B2309/002 , F25B2309/006 , F25B2309/1408 , F25B2309/1411 , F25B2309/14181 , F25B2309/14241 , F25B2309/1427 , Y10T137/87032
摘要： The problems of reducing the torque required to turn the valve, eliminating wear dust, and extending the life of the valves in Gifford McMahon (G-M) type multi-port pulse tube refrigerators are solved by using a rotary spool valve having radial clearance to control flow to and from the regenerator, and using face seal ports on the end of the spool to control flow to and from the pulse tubes.
摘要翻译： 通过使用具有径向游隙的旋转滑阀来解决吉福德·麦克马洪（GM）型多口脉冲管式冰箱中降低扭矩所需扭矩，消除磨损灰尘并延长阀门使用寿命的问题，以控制流量 并且使用在线轴端部的面密封端口来控制流入和流出脉冲管的流量。
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