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1. 发明授权

US07191600B2 Fast warm up pulse tube 失效
标题翻译：快速预热脉冲管
公开(公告)号：US07191600B2
公开(公告)日：2007-03-20
申请号：US10500982
申请日：2003-03-05
申请人： Jin Lin Gao , Ralph C. Longsworth
发明人： Jin Lin Gao , Ralph C. Longsworth
IPC分类号： F25B9/00
CPC分类号： F25B45/00 , F25B9/145 , F25B2309/006 , F25B2309/1408 , F25B2309/1411 , F25B2309/1418 , F25B2309/14181 , F25B2309/14241
摘要： This invention provides an improved means of quickly warming a pulse tube (165) by shifting the phase relation of flow to the warm end of the pulse tube relative to flow to the warm end (117) of the pulse tube relative to flow to the warm end of the regenerator (160) using a “four valve” concept and the “active buffer” concept. Several different pulse tube configurations and valve timing relations that are effective at reversing the cycle from the normal mode, which produces cooling at the pulse tube heat station, to a reverse mode that produces heating are disclosed.
摘要翻译：本发明提供了一种改进的方法，通过相对于流向脉管的暖端（117）的流动将相对于脉冲管的温端的相位关系移动到脉动管（165）来快速加温使用“四阀”概念和“主动缓冲器”概念的再生器（160）的端部。公开了几种不同的脉冲管配置和气门正时关系，其有效地将从脉冲管加热站产生冷却的正常模式的循环反向到产生加热的反向模式。

2. 发明授权

US06629418B1 Two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes 失效
标题翻译：具有和不具有共享缓冲器容量的两级定相脉冲管式冰箱
公开(公告)号：US06629418B1
公开(公告)日：2003-10-07
申请号：US10041700
申请日：2002-01-08
申请人： Jin Lin Gao , Ralph C. Longsworth
发明人： Jin Lin Gao , Ralph C. Longsworth
IPC分类号： F25B900
CPC分类号： F25B9/145 , F25B9/10 , F25B2309/1408 , F25B2309/1418 , F25B2309/14241 , F25B2309/1425
摘要： Disclosed are two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes.
摘要翻译：公开了具有和不具有共享缓冲器体积的两级相间脉冲管式冰箱。

3. 发明授权

US07631505B2 Wearless valve for cryorefrigerator 有权
标题翻译：冷冻机用无齿阀
公开(公告)号：US07631505B2
公开(公告)日：2009-12-15
申请号：US10581962
申请日：2005-03-08
申请人： Eric Seitz , Jin Lin Gao , Ralph C. Longsworth , Mingyao Xu
发明人： Eric Seitz , Jin Lin Gao , Ralph C. Longsworth , Mingyao Xu
IPC分类号： F25B9/00 , F16K31/02 , F16K5/00
CPC分类号： F25B9/14 , F16K3/10 , F16K31/041 , F25B9/145 , F25B2309/006 , F25B2309/1408 , F25B2309/14181 , F25B2309/14241
摘要： An improved method of reducing wear dust and torque required to turn a multi-port rotary disc valve utilizes a thrust bearing to hold the valve seat and/or valve disc such that they are not in contact with each other, or have light contact each other.
摘要翻译：减少转动多端口旋转盘阀所需的磨损粉尘和扭矩的改进方法使用推力轴承来保持阀座和/或阀盘，使得它们不彼此接触或彼此相互接触。

4. 发明授权

US07500366B2 Refrigerator with magnetic shield 有权
标题翻译：带磁屏蔽的冰箱
公开(公告)号：US07500366B2
公开(公告)日：2009-03-10
申请号：US11297125
申请日：2005-12-08
申请人： Mingyao Xu , Jin Lin Gao , Ralph C. Longsworth
发明人： Mingyao Xu , Jin Lin Gao , Ralph C. Longsworth
IPC分类号： F25B9/00 , H01F7/00
CPC分类号： F25B9/14 , F25B9/10 , F25B9/145 , F25B2309/003 , F25B2309/1408 , F25B2309/1415 , F25D19/006 , G01R33/3804 , G01R33/3815
摘要： A magnetic shield is mounted in its own vacuum enclosure in a regenerative type expander comprising a vacuum enclosure, magnetic material in a cold regenerator, and a magnetic shield, where the magnetic shield surrounds the magnetic material.
摘要翻译：磁屏蔽件安装在其自己的真空外壳中的再生式膨胀机中，该再生型膨胀机包括真空外壳，冷再生器中的磁性材料和磁屏蔽，磁屏蔽围绕磁性材料。

5. 发明授权

US06256998B1 Hybrid-two-stage pulse tube refrigerator 失效
标题翻译：混合二级脉冲管冰箱
公开(公告)号：US06256998B1
公开(公告)日：2001-07-10
申请号：US09556552
申请日：2000-04-24
申请人： Jin Lin Gao
发明人： Jin Lin Gao
IPC分类号： F25B900
CPC分类号： F25B9/145 , F25B9/10 , F25B2309/1408 , F25B2309/1411 , F25B2309/1418 , F25B2309/1424 , F25B2309/14241
摘要： A two-stage pulse tube refrigerator comprises a pressure wave generator-compressor, first stage and second stage regenerators, first stage and second stage pulse tubes, heat exchangers and a hybrid phase shift mechanism for the first and second stage pulse tubes. The second stage phase shift mechanism includes double fixed orifices while the first stage shifter is an arrangement including one of a) 4 valves, b) 5 valves c) 2 active buffers or d) 3 active buffers. The double fixed orifice phase shifter is located either at room temperature or is thermally connected with the first stage cold end. Two-stage pulse tube refrigerators with a hybrid phase shifter have increased second stage regenerator performance at lower temperature. Pressure drop through the valves and compressor power consumption are decreased, and losses from phase interaction between each stage are eliminated.
摘要翻译：两级脉冲管式冰箱包括压力波发生器 - 压缩机，第一级和第二级再生器，第一级和第二级脉冲管，用于第一和第二级脉冲管的热交换器和混合相移机构。第二级相移机构包括双固定孔，而第一级换档器是包括a）4个阀门中的一个的装置，b）5个阀门c）2个主动缓冲器或d）3个主动缓冲器。双固定孔移相器位于室温或与第一级冷端热连接。具有混合移相器的两级脉冲管式冰箱在较低温度下具有增加的第二级再生器性能。通过阀门的压降和压缩机功率消耗降低，并且消除了每个阶段之间的相位相互作用的损失。

6. 发明授权

US08783045B2 Reduced input power cryogenic refrigerator 有权
标题翻译：降低输入功率低温冰箱
公开(公告)号：US08783045B2
公开(公告)日：2014-07-22
申请号：US11721513
申请日：2005-01-13
申请人： Mingyao Xu , Jin Lin Gao
发明人： Mingyao Xu , Jin Lin Gao
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F25B9/14 , F25B2309/1408 , F25B2309/1411 , F25B2309/1418 , F25B2309/1424 , F25B2309/14241 , F25B2600/2519
摘要： The present invention relates to valved cryogenic refrigerators, in particular, Gifford McMahon (GM) refrigerators, and GM type pulse tube refrigerators where gas is cycled between high and low pressures by a valve mechanism that connects to an expander. Input power is reduced by use of a buffer volume which stores gas that flows to and from the warm end of the regenerator through a valve that opens and closes during the periods when the main supply and return valves are closed and is closed when the main supply and return valves are open.
摘要翻译：本发明涉及带阀的低温冰箱，特别是吉福德·麦克马洪（GM）冰箱，以及GM型脉冲管制冷器，其中气体通过连接到膨胀机的阀机构在高低压之间循环。通过使用缓冲体积来减少输入功率，该缓冲体积存储在再生器的暖端流动的气体通过在主供给和返回阀关闭的时段期间打开和关闭的阀，当主供应回流阀打开。

7. 发明授权

US5974807A Pulse tube refrigerator 失效
标题翻译：脉管冰箱
公开(公告)号：US5974807A
公开(公告)日：1999-11-02
申请号：US957624
申请日：1997-10-24
申请人： Jin Lin Gao , Yoichi Matsubara , Yu Hiresaki
发明人： Jin Lin Gao , Yoichi Matsubara , Yu Hiresaki
IPC分类号： F25B9/00 , F25B9/14
CPC分类号： F25B9/145 , F25B2309/1408 , F25B2309/1418 , F25B2309/14181 , F25B2309/14241 , F25B2309/1425 , F25B9/10
摘要： A pulse tube refrigerator which can generate cryogenic temperatures of below 10 K includes first and second refrigeration stages. Each stage includes a pulse tube and an associated regenerator provided at the low temperature side of the pulse tube. A pressure fluctuation generator having a compressor and a first to a fourth valve is provided at the high temperature side of each regenerator. The high temperature sides of each pulse tube are connected by a continuous channel while the high temperature side of each pulse tube and the high temperature side of each regenerator are connected by a by-pass channel. A magnetic material having a rare-earth element and a transition metal is used as a regenerative material for the regenerator. When pressure fluctuation is generated in each pulse tube at the phase difference angle of 180.degree., respectively, a working gas is transferred between the high temperature sides of each pulse tube, therefore, the phase angle between the pressure fluctuation in each pulse tube and the displacement of the working gas is optimized. Further, the flow amount of the operating gas sent to each regenerator is limited using a by-pass channel.
摘要翻译：可以产生低于10K的低温温度的脉冲管制冷器包括第一和第二制冷阶段。每个级包括脉冲管和设置在脉冲管的低温侧的相关联的再生器。具有压缩机和第一至第四阀的压力波动发生器设置在每个再生器的高温侧。每个脉冲管的高温侧通过连续通道连接，而每个脉冲管的高温侧和每个再生器的高温侧通过旁路通道连接。使用具有稀土元素和过渡金属的磁性材料作为再生器的再生材料。当每个脉冲管在180°的相位角处产生压力波动时，工作气体在每个脉冲管的高温侧之间传递，因此，每个脉冲管的压力波动与优化了工作气体的排量。此外，使用旁路通道限制发送到每个再生器的工作气体的流量。

8. 发明授权

US5642623A Gas cycle refrigerator 失效
标题翻译：燃气循环冰箱
公开(公告)号：US5642623A
公开(公告)日：1997-07-01
申请号：US554322
申请日：1995-11-02
申请人： Yu Hiresaki , Jin Lin Gao , Yoichi Matsubara
发明人： Yu Hiresaki , Jin Lin Gao , Yoichi Matsubara
IPC分类号： F25B9/00 , F25B9/10 , F25B9/14
CPC分类号： F25B9/145 , F25B9/10 , F25B9/14 , F25B2309/1413 , F25B2309/1417 , F25B2309/1418 , F25B2309/14241
摘要： A multi-staged gas cycle refrigerator having a first stage regeneration part including a compression piston, a second stage regeneration part including a double inlet pulse tube and a buffer is described. Temperatures below 10K are achieved without leakage of refrigerant gas, this configuration resulting in the improvement of efficiency and reduction of cost.
摘要翻译：描述了具有包括压缩活塞的第一级再生部分，包括双入口脉冲管和缓冲器的第二级再生部分的多级气体循环制冷机。在不泄漏制冷剂气体的情况下实现低于10K的温度，这种结构导致效率的提高和成本的降低。

9. 发明授权

US07654096B2 Reduced torque valve for cryogenic refrigerator 有权
标题翻译：低温冰箱减速扭矩阀
公开(公告)号：US07654096B2
公开(公告)日：2010-02-02
申请号：US10580917
申请日：2005-01-20
申请人： Mingyao Xu , Jin Lin Gao , Eric Seitz , Motokazu Saito
发明人： Mingyao Xu , Jin Lin Gao , Eric Seitz , Motokazu Saito
IPC分类号： F25B9/00 , F16K11/074 , F16K31/02
CPC分类号： F25B9/14 , F16K11/074 , F16K31/041 , F25B9/145 , F25B2309/006 , F25B2309/1408 , F25B2309/14181 , F25B2309/14241 , Y10T137/86863
摘要： A rotary valve unit which reduces the torque required to turn the valve disc, and the amount of wear dust that is blown into the cold head, using differential gas forces to keep the valve disc in contact with the valve seat, and which enables larger diameter valve discs to be utilized for multi-ported pulse tubes that have less force on the face of the valve disc, resulting in reduced torque and reduced wear rate.
摘要翻译：一种旋转阀单元，其减小了转动阀盘所需的扭矩以及吹入冷头中的磨损粉尘的量，使用差分气体力来保持阀盘与阀座接触，并且使得能够更大直径用于多孔脉冲管的阀盘，其在阀盘的表面上具有较小的力，导致减小的转矩和降低的磨损率。

10. 发明授权

US07568351B2 Multi-stage pulse tube with matched temperature profiles 有权
标题翻译：具有匹配温度曲线的多级脉冲管
公开(公告)号：US07568351B2
公开(公告)日：2009-08-04
申请号：US11333760
申请日：2006-01-17
申请人： Mingyao Xu , Jin Lin Gao
发明人： Mingyao Xu , Jin Lin Gao
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F25B9/10 , F25B2309/1408 , F25B2309/1413 , F25B2309/1418 , F25B2309/1421 , F25B2309/14241 , F25B2400/17 , F25D19/006
摘要： Convection losses associated with different temperature profiles in the pulse tubes and regenerators of multi-stage pulse tubes mounted in helium gas in the neck tube of a MRI cryostat are reduced by providing one or more of thermal bridges, and/or insulating sleeves between one or more pulse tubes and regenerators, and/or spacers, and spacer tubes, in one or more pulse tubes and regenerators.
摘要翻译：通过在MRI低温恒温器的颈管中安装在氦气中的多级脉冲管的脉冲管和再生器中的不同温度曲线相关的对流损耗通过在一个或多个第一或第二组之间提供一个或多个热桥和/或绝缘套管来减少一个或多个脉冲管和再生器中的更多脉冲管和再生器，和/或间隔物和间隔管。

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