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1. 发明申请

US20080245077A1 Multiple Rotary Valve For Pulse Tube Refrigerator 审中-公开
标题翻译：多管旋转阀用于脉管冷冻机
公开(公告)号：US20080245077A1
公开(公告)日：2008-10-09
申请号：US11910088
申请日：2005-06-10
申请人： Mingyao Xu , Eric Seitz
发明人： Mingyao Xu , Eric Seitz
IPC分类号： F25B9/14 , F16K5/00
CPC分类号： F16K11/0655 , F16K31/041 , F25B9/145 , F25B2309/006 , F25B2309/1408 , F25B2309/14181 , F25B2309/14241 , Y10T137/86533 , Y10T137/86863
摘要： A rotary disc valve unit and refrigerators containing a rotary disc valve unit that has multiple valves, in which at least one rotary valve has ports connecting to the regenerator and at least one rotary valve has ports connecting to the warm ends of one or more pulse tubes where the rotary valve with ports for the regenerator has lighter contact than the rotary valve with ports for the pulse tubes. The valve face is divided into an inner area with ports for the pulse tubes and an outer area with ports for the regenerator, the inner area having a greater sealing pressure than the outer area.
摘要翻译：旋转盘阀单元和包含旋转盘阀单元的冰箱，其具有多个阀，其中至少一个旋转阀具有连接到再生器的端口，并且至少一个旋转阀具有连接到一个或多个脉冲管的暖端的端口其中具有用于再生器的端口的旋转阀具有比具有用于脉冲管的端口的旋转阀更轻的接触。阀面被分成具有用于脉冲管的端口的内部区域和具有用于再生器的端口的外部区域，内部区域具有比外部区域更大的密封压力。

2. 发明申请

US20080092588A1 Reduced Input Power Cryogenic Refrigerator 有权
标题翻译：降低输入功率的低温冰箱
公开(公告)号：US20080092588A1
公开(公告)日：2008-04-24
申请号：US11721513
申请日：2005-01-13
申请人： Mingyao Xu , Jin Gao
发明人： Mingyao Xu , Jin Gao
IPC分类号： F25J1/00
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压和低压之间循环。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。

3. 发明授权

US07305835B2 Pulse tube cooling by circulation of buffer gas 失效
标题翻译：脉冲管通过缓冲气体的循环冷却
公开(公告)号：US07305835B2
公开(公告)日：2007-12-11
申请号：US10500786
申请日：2003-01-08
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F25B9/10 , F25B2309/1407 , F25B2309/1411 , F25B2309/1412 , F25B2309/1418 , F25B2309/14241
摘要： The present invention applies to single or two stage pulse tube refrigerators that have one or more passive orifices at the hot end(s) of the pulse tube(s) through which gas flows to achieve phase shifting and the phase shifting gas flow circulates to a remote heat sink by adding check valves and an appropriate piping circuit.
摘要翻译：本发明适用于在脉冲管的热端具有一个或多个无源孔的单级或两级脉冲管制冷器，气体通过该端口流动以实现相移，并且相移气流循环到通过添加止回阀和适当的管道电路进行远程散热。

4. 发明授权

US5628195A Vibrationally isolated thermal system for a cryogenically cooled device 失效
标题翻译：用于低温冷却装置的振动隔离热系统
公开(公告)号：US5628195A
公开(公告)日：1997-05-13
申请号：US396528
申请日：1995-03-01
申请人： Dennis Hill , Ralph C. Longsworth
发明人： Dennis Hill , Ralph C. Longsworth
IPC分类号： G01R33/035 , F17C13/00 , F25B9/00 , F25D19/00 , G01J5/06 , F25B19/00
CPC分类号： F17C13/006 , F25D19/006 , G01J5/061 , F17C2223/0161 , F17C2227/0337
摘要： A cryogenic cold head in a canister is partially surrounded by an isolation mass. An open portion of the mass permits access for connection of a vapor compression refrigeration unit to the cold head, which is highly conductive. Straps of braided copper suspend the isolation mass from the cold head. The isolation mass and straps have a fundamental frequency that is below the first harmonic frequency at the cold head as caused by the refrigeration unit. A temperature differential between the cold head and a device-mounting interface on the isolation mass is preferably less than 2.5K per watt of heat transferred. The device to be cooled is mounted directly to the isolation mass when the mass of the device is insignificant relative to the isolation mass. For further vibration isolation, the device is separated from the isolation mass by another braided strap. By mounting the isolation mass using a plurality of generally opposed braided straps, any orientation of the cold head/isolation mass combination may be used without jeopardizing performance.
摘要翻译：罐中的低温冷头被隔离块部分地包围。质量的开放部分允许进入用于将蒸气压缩制冷单元连接到高度导电的冷头。编织铜带将隔离块悬挂在冷头上。隔离质量和带子具有低于制冷单元引起的冷头处的一次谐波频率的基频。冷头和隔离物质上的装置安装界面之间的温差优选小于2.5K /瓦特传热。当装置的质量相对于隔离质量不显着时，要冷却的装置直接安装在隔离块上。为了进一步的隔振，设备通过另一个编织带与隔离块分离。通过使用多个大致相对的编织带安装隔离块，可以使用冷头/隔离块组合的任何取向而不损害性能。

5. 发明授权

US5249425A Venting control system for cryostats 失效
标题翻译：低温恒温器通风控制系统
公开(公告)号：US5249425A
公开(公告)日：1993-10-05
申请号：US906401
申请日：1992-07-01
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： F17C3/08 , F25B9/02 , F25B19/02 , F25B9/00 , F25B19/00
CPC分类号： F17C3/085 , F25B9/02 , F17C2221/014
摘要： A cryostat in which a venting conduit is connected to a reservoir of the cryostat but no venting of cryogen within the reservoir can occur while fluid is flowing under pressure within the heat exchanger of the cryostat.
摘要翻译：一种低温恒温器，其中通气管连接到低温恒温器的储存器，但是当流体在低温恒温器的热交换器内的压力下流动时，可能会发生冷凝器内的冷冻剂排放。

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

US08187370B2 Horizontal bulk oil separator 有权
标题翻译：水平散装油分离器
公开(公告)号：US08187370B2
公开(公告)日：2012-05-29
申请号：US11486414
申请日：2006-07-13
申请人： Stephen B. Dunn , Ralph C. Longsworth
发明人： Stephen B. Dunn , Ralph C. Longsworth
IPC分类号： B01D19/00 , B01D45/08 , F01M11/08 , C02F1/40
CPC分类号： F25B43/02
摘要： A high separation efficacy, compact, bulk oil separator oriented horizontally and used with a scroll-type oil-lubricated compressor unit adapted to compressing helium. The horizontal bulk oil separator contains an integral oil reservoir and removes more than 99.9% of the oil from the helium that exits. The bulk oil separator contains successive chambers where oil separates from the gas by impingement.
摘要翻译：水平分离的高分离效率，紧凑型体油分离器，与用于压缩氦气的涡旋式油润滑压缩机组一起使用。水平散装油分离器包含一个整体的储油器，并从出口的氦气中除去99.9％以上的油。主体油分离器包含连续的室，其中油通过冲击与气体分离。

8. 发明申请

US20060144054A1 Co-axial multi-stage pulse tube for helium recondensation 有权
标题翻译：用于氦气再凝结的同轴多级脉冲管
公开(公告)号：US20060144054A1
公开(公告)日：2006-07-06
申请号：US11274447
申请日：2005-11-15
申请人： Mingyao Xu , Ralph Longsworth
发明人： Mingyao Xu , Ralph Longsworth
IPC分类号： F25B9/00 , F17C5/02
CPC分类号： F25B9/10 , F25B9/145 , F25B2309/1406 , F25B2309/1408 , F25B2309/1413 , F25B2309/1414 , F25B2309/1415 , F25B2309/1418 , F25B2309/14241 , F25B2309/1425 , F25B2400/17 , F25D19/006
摘要： A two-stage pulse tube refrigerator having a compact design, low vibration and low heat loss is provided where at least the 2nd stage is co-axial but preferably, both stages are co-axial with the second stage pulse tube being central and the first stage pulse tube occupying the annular space between the second stage pulse tube and the first stage regenerator. Convection losses associated with different temperature profiles in the pulse tubes and regenerators are minimized by shifting the thermal patterns in the pulse tubes relative to the regenerators by one or more of spacers in the regenerators, physical differences in length with gas channel connections, adjustment of dc flow, and thermal bridges.
摘要翻译：提供具有紧凑设计，低振动和低热损失的两级脉冲管制冷器，其中至少两级级是同轴的，但优选地，两级与第二级同轴第一级脉冲管为中心，第一级脉冲管占据第二级脉冲管与第一级再生器之间的环形空间。脉冲管和再生器中与不同温度曲线相关的对流损耗通过在再生器中的一个或多个间隔物相对于再生器移动热脉冲图案，与气体通道连接的长度物理差异，直流调节流动和热桥。

9. 发明授权

US5452582A Cryo-probe 失效
标题翻译：冷冻探针
公开(公告)号：US5452582A
公开(公告)日：1995-09-26
申请号：US271102
申请日：1994-07-06
申请人： Ralph C. Longsworth
发明人： Ralph C. Longsworth
IPC分类号： A61B18/00 , A61B18/02 , F25B9/02 , F25B19/02 , F25D3/00
CPC分类号： F25B9/02 , A61B18/02 , A61B2018/00041 , A61B2018/00095 , A61B2018/00101 , A61B2018/0275 , A61B2018/0287 , F25B2309/021
摘要： In the cryo-probe, refrigerant is furnished from a high pressure, room temperature supply. Insulation of the refrigerant lines is unnecessary. Refrigerant flows through a pre-cooling heat exchanger in the probe and through a restrictor wherein the pressure drops. In accordance with the Joule-Thompson effect, the refrigerant expands and becomes cold and liquid is applied in the region of the cryo-tip to provide rapid cooling thereof. Expanded refrigerant gas at low pressure reverses direction and flows back from the cold tip in counterflow arrangement through the aforementioned heat exchanger to give a pre-cooling effect to the refrigerant incoming from the external supply. A second tube for conveying warm-up gas is located in the probe and extends to the cold tip. After cryosurgery is complete, the high pressure flow is stopped and warm gas is delivered to the tip in the probe at reduced pressure through the second tube from the same refrigerant supply as is used for cooling. Accordingly, the tip is rapidly warmed.
摘要翻译：在低温探针中，制冷剂由高压室温供应。不需要制冷剂管路的绝缘。制冷剂流过探针中的预冷热交换器，并通过压力降低的限流器。根据焦耳汤普森效应，制冷剂膨胀并变冷，在冷冻尖端的区域内施加液体以提供快速冷却。在低压下的膨胀制冷剂气体反向，并且通过上述热交换器以逆流排列的方式从冷端回流，从而向从外部供给的制冷剂提供预冷效果。用于输送预热气体的第二管位于探头中并延伸到冷端。在冷冻手术完成后，停止高压流动，并将暖气从与用于冷却的制冷剂供应相同的制冷剂供应通过第二管减压地输送到探针中的尖端。因此，尖端迅速加热。

10. 发明授权

US5441658A Cryogenic mixed gas refrigerant for operation within temperature ranges of 80.degree.K- 100.degree.K 失效
标题翻译：低温混合气体制冷剂在80°K-100°K的温度范围内运行
公开(公告)号：US5441658A
公开(公告)日：1995-08-15
申请号：US149203
申请日：1993-11-09
申请人： Mikhail Boyarsky , Boris Yudin , Victor I. Mogorychny , Larry Klusmier
发明人： Mikhail Boyarsky , Boris Yudin , Victor I. Mogorychny , Larry Klusmier
IPC分类号： C09K5/04 , F25B9/00 , F25B9/02 , F25B31/00
CPC分类号： C09K5/042 , F25B31/004 , F25B9/006 , F25B9/02
摘要： A mixed gas refrigerant for use in the cryogenic range of temperatures between 80.degree. K. and 100.degree. K., with single stage compressor providing high pressures up to 30 Arms. The refrigerant consists of nitrogen between 30 and 50 molar percent, methane less than 20 molar percent, propane, more than 30 molar percent, and ethane the balance.
摘要翻译：一种混合气体制冷剂，用于80°K至100°K的低温范围，单级压缩机可提供高达30 Arms的高压。制冷剂由氮在30至50摩尔％之间，甲烷小于20摩尔％，丙烷，大于30摩尔％和余量的乙烷组成。

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