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1. 发明授权

US5944302A Linear compressor including reciprocating piston and machined double-helix piston spring 失效
标题翻译：线性压缩机包括往复活塞和加工双螺旋活塞弹簧
公开(公告)号：US5944302A
公开(公告)日：1999-08-31
申请号：US380223
申请日：1995-01-26
申请人： Anthony S. Loc , Gerald R. Pruitt
发明人： Anthony S. Loc , Gerald R. Pruitt
IPC分类号： F04B17/04 , F04B27/02 , F04B35/04 , F16F1/02 , F16F1/04 , F16F1/12 , F16F3/04
CPC分类号： F16F3/04 , F04B35/045 , F16F1/02 , F16F1/047 , F16F1/12
摘要： A linear compressor (60) includes a reciprocating piston (20) for varying the volume of a compression chamber (12). A moving coil motor (26) causes the piston (20) to reciprocate against the force of an integrally machined double-helix spring (62) about a position in which the spring (62) is in a free state. The spring (62) includes a retainer (72) which is attached to the piston (20), a fixed flange (66) and two resilient helical members (78,80) which extend between the flange (66) and retainer (72) along a longitudinal axis (82). The helical members (78,80) are configured such that lateral reaction forces thereof are mutually canceling. The helical members (78,80) have the same twist direction, are interspersed with each other along the longitudinal axis (82) and are rotationally displaced from each other about the longitudinal axis (82) by substantially 180.degree.. Alternatively, a spring (90) includes helical members (100,102) which have opposite twist directions and are spaced from each other along a longitudinal axis (104), and are interconnected at their inner ends by a center member (106).
摘要翻译：线性压缩机（60）包括用于改变压缩室（12）的容积的往复活塞（20）。动圈式马达（26）使得活塞（20）抵抗相对于弹簧（62）处于自由状态的位置的整体加工的双螺旋弹簧（62）的力往复运动。弹簧（62）包括附接到活塞（20）的固定器（72），在凸缘（66）和保持器（72）之间延伸的固定凸缘（66）和两个弹性螺旋构件（78,80）沿着纵向轴线（82）。螺旋构件（78,80）构造成使得其横向反作用力相互抵消。螺旋构件（78,80）具有相同的扭转方向，沿着纵向轴线（82）彼此散布并且围绕纵向轴线（82）彼此旋转地移位大致180度。或者，弹簧（90）包括螺旋构件（100,102），其具有相反的扭转方向并且沿着纵向轴线（104）彼此间隔开，并且在其内端处由中心构件（106）互连。

2. 发明授权

US4761960A Cryogenic refrigeration system having an involute laminated stator for its linear drive motor 失效
标题翻译：低温制冷系统具有用于其线性驱动电动机的渐开线层压定子
公开(公告)号：US4761960A
公开(公告)日：1988-08-09
申请号：US885218
申请日：1986-07-14
申请人： Graham J. Higham , Howard D. Snively , Harry G. Nicoll , Gerald R. Pruitt
发明人： Graham J. Higham , Howard D. Snively , Harry G. Nicoll , Gerald R. Pruitt
IPC分类号： F25B9/00 , F02G1/044 , F25B9/14 , H02K33/06
CPC分类号： F25B9/14 , F02G1/0445 , H02K33/06 , F02G2250/18 , F02G2258/10 , F25B2309/001
摘要： In a cryogenic split Stirling refrigerator, the compressor is driven by linear drive motors. Each linear drive motor has an armature hermetically sealed by a housing 20. Surrounding the housing is a stator formed from two bodies each housing a drive coil 48 and 49. Each body consists of two components 52-55 formed from involute laminations which have been aligned after the coil has been inserted. Separating the bodies is a magnet 56.
摘要翻译：在低温分体斯特林冰箱中，压缩机由线性驱动电机驱动。每个线性驱动电动机具有由壳体20密封密封的电枢。围绕壳体的定子是由两个主体构成的定子，每个壳体均容纳驱动线圈48和49.每个主体由已经对准的渐开线叠层形成的两个部件52-55组成线圈插入后。身体分离是磁铁56。

3. 发明申请

US20090107150A1 Inertance tube and surge volume for pulse tube refrigerator 有权
标题翻译：脉冲管冰箱的惰性管和浪涌体积
公开(公告)号：US20090107150A1
公开(公告)日：2009-04-30
申请号：US11981184
申请日：2007-10-31
申请人： Sidney W. Yuan , Carl S. Kirkconnell , Kenneth D. Price , Anthony T. Finch , Gerald R. Pruitt
发明人： Sidney W. Yuan , Carl S. Kirkconnell , Kenneth D. Price , Anthony T. Finch , Gerald R. Pruitt
IPC分类号： F25B9/00
CPC分类号： F25B9/145 , F25B2309/1423
摘要： An inertance tube and a surge volume for a pulse tube refrigerator system may be integrally coupled together, such as by the inertance tube being at least in part a channel in a wall of the surge volume. The surge volume may have a helical channel in an outer wall that forms part of the inertance tube. The surge volume tank may be surrounded by a cover that closes off the channel to form the inertance tube as an integral part of the surge volume. The inertance tube may have a non-circular cross section shape, such as a square shape or non-square rectangular shape. The channel may be tapered, perhaps changing aspect ratio. Alternatively, the inertance tube may be a separate tube having a non-circular shape, which may be wrapped around at least part of the surge volume.
摘要翻译：用于脉冲管制冷系统的惯性管和喘振容积可以整体地联接在一起，例如由惯性管至少部分地在喘振体积的壁中的通道。浪涌体积可以在形成惯性管的一部分的外壁中具有螺旋通道。喘振容积罐可以被盖封闭，盖子封闭通道以形成作为浪涌体积的组成部分的惯性管。惯性管可以具有非圆形横截面形状，例如正方形或非矩形矩形形状。通道可以是锥形的，也许是改变的纵横比。或者，惯性管可以是具有非圆形形状的单独的管，其可以缠绕在喘振体积的至少一部分上。

4. 发明授权

US5966936A Pin coupling for reduced side loads in a driven displacer-piston link and method 失效
标题翻译：用于减小驱动的置换器 - 活塞连杆中的侧向负载的销联接和方法
公开(公告)号：US5966936A
公开(公告)日：1999-10-19
申请号：US90196
申请日：1998-06-04
申请人： Gerald R. Pruitt
发明人： Gerald R. Pruitt
IPC分类号： F16C7/02 , F16J1/16 , F25B9/14 , F01B29/10
CPC分类号： F16J1/16 , F25B9/14
摘要： A driven armature cylinder and piston link with reduced side loads and cross-bearing loads which uses a pin inserted through a dual coaxial tapered through bore in the drive piston to secure a drive piston to a displacer or compressor module cylinder, as applicable to Stirling cycle cryocoolers. Another embodiment is a method of coupling a piston to an armature cylinder with a linkage pin inserted through a dual coaxial tapered through bore to assure that the impact forces between the linkage pin and the drive piston occur at the centerline of the drive piston for centered loading and reduction of side and cross-bearing loads.
摘要翻译：驱动电枢气缸和活塞连杆具有减小的侧向负载和横向负载，其使用插入通过驱动活塞中的双同轴锥形通孔的销将活塞固定到置换器或压缩机模块气缸，适用于斯特林循环制冷机另一个实施例是一种将活塞连接到电枢圆柱体的方法，其中连杆销通过双同轴锥形通孔插入，以确保连杆销和驱动活塞之间的冲击力发生在驱动活塞的中心线处，用于中心载荷并减少侧向和横向载荷。

5. 发明授权

US07089750B2 Expansion-nozzle cryogenic refrigeration system with reciprocating compressor 有权
标题翻译：具有往复式压缩机的膨胀喷嘴低温制冷系统
公开(公告)号：US07089750B2
公开(公告)日：2006-08-15
申请号：US10733504
申请日：2003-12-11
申请人： Gerald R. Pruitt , Kenneth D. Price , Carl S. Kirkconnell
发明人： Gerald R. Pruitt , Kenneth D. Price , Carl S. Kirkconnell
IPC分类号： F25D9/00 , F25B19/02
CPC分类号： F04B39/1073 , F04B35/045 , F25B9/02 , F25B2400/073
摘要： A cryogenic refrigeration system includes an expansion nozzle having a high-pressure nozzle inlet and a low-pressure nozzle outlet, and a compressor having a compression device, such as a pair of opposing pistons, operable to compress gas within a compression volume. The compression volume has an inlet port and an outlet port. A flapper inlet valve has an inlet valve inlet, and an inlet valve outlet in gaseous communication with the inlet port of the compression volume. The inlet valve opens when a gaseous pressure at the inlet valve inlet is sufficiently greater than a gaseous pressure in the compression volume to overcome a spring force of the flapper inlet valve. A flapper outlet valve has an outlet valve inlet in gaseous communication with the outlet port of the compression volume, and an outlet valve outlet in gaseous communication with the nozzle inlet. The outlet valve opens when a gaseous pressure in the compression volume is greater than a gaseous pressure at the outlet valve outlet to overcome a spring force of the flapper outlet valve. A drive motor system is in driving mechanical communication with the compression pistons. The compression volume is hermetically isolated from the drive motor system.
摘要翻译：低温制冷系统包括具有高压喷嘴入口和低压喷嘴出口的膨胀喷嘴，以及具有压缩装置的压缩机，诸如一对相对的活塞，可压缩压缩体积内的气体。压缩体积具有入口和出口。挡板入口阀具有入口阀入口和与压缩体积的入口气体连通的入口阀出口。当入口阀入口处的气体压力足够大于压缩体积中的气体压力以克服挡板入口阀的弹簧力时，入口阀打开。挡板出口阀具有与压缩容积的出口气体连通的出口阀入口和与喷嘴入口气态连通的出口阀出口。当压缩体积中的气体压力大于出口阀出口处的气体压力以克服挡板出口阀的弹簧力时，出口阀打开。驱动马达系统正在与压缩活塞驱动机械连通。压缩体积与驱动电机系统密封隔离。

6. 发明授权

US4924675A Linear motor compresser with stationary piston 失效
标题翻译：带静止活塞的直线电机压缩机
公开(公告)号：US4924675A
公开(公告)日：1990-05-15
申请号：US371510
申请日：1989-06-26
申请人： Graham J. Higham , Gerald R. Pruitt , Ronald Morris , Frank Heger , James Livingstone , David Tormey
发明人： Graham J. Higham , Gerald R. Pruitt , Ronald Morris , Frank Heger , James Livingstone , David Tormey
IPC分类号： F04B35/04 , F16F7/116 , F25B9/14 , H02K33/06
CPC分类号： F25B9/14 , F04B35/045 , F16F7/116 , H02K33/06 , F25B2309/001 , F25B2500/13
摘要： A linear motor compressor within a cryogenic refrigerator wherein the compressor space, within which a gaseous fluid is alternately compressed and expanded, is formed by a stationary piston and a reciprocating armature that is concentric about the piston. The armature is supported along a clearance seal the stationary piston. An axial bore along the stationary piston conveys gaseous fluid from the compression space to a displacer within the cold finger of the cryogenic refrigerator. An isolator for reducing transimission into and out of the compressor comprising a dynamic absorber and flat springs mounted with a damping material between the compressor and a mounting frame. A sensor for detecting the position of the armature utilizes a target magnet whose magnetic flux lines are decoupled from the flux lines generated about the coil.
摘要翻译：低温冷冻机内的线性电动机压缩机，其中气态流体交替压缩和膨胀的压缩机空间由静止活塞和与活塞同心的往复式电枢形成。电枢沿静止活塞的间隙密封支撑。沿着固定活塞的轴向孔将气态流体从压缩空间传递到低温冰箱的冷指状物内的置换器。用于减少进入和离开压缩机的隔离器包括动态吸收器和在压缩机和安装框架之间安装有阻尼材料的扁平弹簧。用于检测电枢位置的传感器利用目标磁体，其磁通线与绕线圈产生的磁通线分离。

7. 发明授权

US4873913A Dry roughing pump having a gas film bearing 失效
标题翻译：具有气膜轴承的干式粗加工泵
公开(公告)号：US4873913A
公开(公告)日：1989-10-17
申请号：US906741
申请日：1986-09-12
申请人： Gerald R. Pruitt , Peter Bertsch
发明人： Gerald R. Pruitt , Peter Bertsch
IPC分类号： F04B37/08 , F04B39/04
CPC分类号： F04B37/08 , F04B39/045
摘要： The present invention relates to a cryopump having a gas bearing formed in a clearance seal between a piston and a cylinder. The gas bearing is formed by forcing pressurized gas from a gas plenum through orifices to the clearance seal.
摘要翻译：本发明涉及一种具有形成在活塞和气缸之间的间隙密封中的气体轴承的低温泵。气体轴承是通过将来自气室的加压气体通过孔口推动到间隙密封件而形成的。

8. 发明授权

US5596875A Split stirling cycle cryogenic cooler with spring-assisted expander 失效
标题翻译：分体式斯特林循环低温冷却器与弹簧辅助膨胀机
公开(公告)号：US5596875A
公开(公告)日：1997-01-28
申请号：US513647
申请日：1995-08-10
申请人： Robert L. Berry , Gerald R. Pruitt
发明人： Robert L. Berry , Gerald R. Pruitt
IPC分类号： F16F7/10 , F25B9/14 , F25B9/00
CPC分类号： F16F7/1005 , F25B9/14
摘要： A split Stirling cycle type of cryogenic cooler (10) includes a compressor portion (12) and an expander portion (14). The expander portion (14) is of the "cold finger" type, and is configured to operate in near-resonance with the characteristic cyclic operating rate of the compressor portion (12). As a result, an improved performance of the cooler results both during cool down from ambient temperatures and after cool down. Additionally, a quiet operation of the cooler is provided both during and after cool down to cryogenic temperatures.
摘要翻译：分体斯特林循环型低温冷却器（10）包括压缩机部分（12）和膨胀器部分（14）。膨胀机部14为“冷指”型，并被配置为以与压缩机部12的特征循环运转率近似谐振的方式运转。结果，在冷却从环境温度和冷却之后，冷却器的性能得到改善。另外，在冷却至低温期间和之后均提供冷却器的安静操作。

9. 发明授权

US5542254A Cryogenic cooler 失效
标题翻译：低温冷却器
公开(公告)号：US5542254A
公开(公告)日：1996-08-06
申请号：US286859
申请日：1994-08-05
申请人： Gerald R. Pruitt
发明人： Gerald R. Pruitt
IPC分类号： F17C13/00 , F25B9/14 , F25D19/00 , G01J5/06 , F25B9/00 , F25B19/00
CPC分类号： F25B9/14 , F25D19/006 , G01J5/061 , F25B2500/13
摘要： An improved cryogenic cooler 100 includes a flange 106 with an elongated pressure vessel 120 extending therefrom. The pressure vessel 120 is connected to the flange 106 at a proximal end thereof. The pressure vessel 120 is adapted to cool a surface in the proximity of the distal end thereof. Vibration isolation is provided at both proximal and distal ends of the elongated pressure vessel. A coupler 126 serves to maintain a gap between the distal end of the pressure vessel 120 and the surface at cryogenic temperatures. In a specific embodiment, the coupler 234 has a coefficient of thermal expansion which is less than the coefficient of thermal expansion of an end cap 224 on the pressure vessel. The coefficients of expansion are chosen to provide a tight slip fit between the cooler and the coupler at ambient temperatures and a very small continuous air gap at cryogenic temperatures. Another novel feature is the provision of an energy-absorbing ring 114 within the flange to dissipate vibration therein.
摘要翻译：改进的低温冷却器100包括具有从其延伸的细长压力容器120的凸缘106。压力容器120在其近端处连接到凸缘106。压力容器120适于冷却其远端附近的表面。在细长的压力容器的近端和远端设置振动隔离。联接器126用于在低温下保持压力容器120的远端和表面之间的间隙。在具体实施例中，耦合器234的热膨胀系数小于压力容器上的端盖224的热膨胀系数。选择膨胀系数以在环境温度下在冷却器和耦合器之间提供紧密的滑动配合，并且在低温下具有非常小的连续空气间隙。另一个新颖特征是在法兰内设置能量吸收环114以消散其中的振动。

10. 发明授权

US5018357A Temperature control system for a cryogenic refrigeration 失效
标题翻译：用于低温制冷的温度控制系统
公开(公告)号：US5018357A
公开(公告)日：1991-05-28
申请号：US488418
申请日：1990-03-01
申请人： James Livingstone , Graham J. Higham , Gerald R. Pruitt
发明人： James Livingstone , Graham J. Higham , Gerald R. Pruitt
IPC分类号： F25B9/14 , G05D23/20
CPC分类号： F25B9/14 , G05D23/1906 , G05D23/20 , F25B2309/001 , F25B2500/13
摘要： In a cryogenic refrigeration utilizing a linear drive motor, a temperature control system controls the displacement of an armature reciprocating at a fixed frequency to adjust the operating temperature of a working fluid at the cold end of a cold finger. Linear drive motors using dynamic absorbers to reduce vibration operate within the narrow frequency range to which the absorber is tuned. Controlling the maximum displacement of the armature used to compress the working fluid results in the ability to adjust the temperature at the cold end of the refrigeration without altering the frequency of operation.
摘要翻译：在利用线性驱动电机的低温制冷中，温度控制系统控制电枢以固定频率往复运动的位移，以调节冷手指冷端处的工作流体的工作温度。使用动态吸收器减少振动的线性驱动电机在吸收器调谐到的窄频范围内工作。控制用于压缩工作流体的电枢的最大位移导致在不改变操作频率的情况下调节冷端冷端的温度的能力。

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