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公开(公告)号：US3992169A
公开(公告)日：1976-11-16
申请号：US569491
申请日：1975-04-18
申请人： John D. Loudon
发明人： John D. Loudon
CPC分类号： H01B12/16 , F16L51/02 , F16L59/141 , Y02E40/647 , Y10S285/904 , Y10S505/898
摘要： An elongated cryogenic envelope including an outer tube and an inner tube coaxially spaced within said inner tube so that the space therebetween forms a vacuum chamber for holding a vacuum. The inner and outer tubes are provided with means for expanding or contracting during thermal changes. A shield is located in the vacuum chamber intermediate the inner and outer tubes; and, a refrigeration tube for directing refrigeration to the shield is coiled about at least a portion of the inner tube within the vacuum chamber to permit the refrigeration tube to expand or contract along its length during thermal changes within said vacuum chamber.
摘要翻译： 细长的低温外壳包括外管和在所述内管中同轴间隔的内管，使得它们之间的空间形成用于保持真空的真空室。 内管和外管设有在热变化期间膨胀或收缩的装置。 屏蔽位于真空室中间的内管和外管; 并且用于将制冷剂引导到防护罩的制冷管围绕真空室内的内管的至少一部分盘绕，以允许制冷管在所述真空室内的热变化期间沿其长度膨胀或收缩。
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公开(公告)号：US3986341A
公开(公告)日：1976-10-19
申请号：US569473
申请日：1975-04-18
申请人： James R. DeHaan
发明人： James R. DeHaan
CPC分类号： F16L59/141 , Y10S285/904 , Y10S505/898
摘要： A plurality of cryogenic envelope sections are joined together to form a power transmission line. Each of the sections is comprised of inner and outer tubes having multilayer metalized plastic spirally wrapped within a vacuum chamber formed between the inner and outer tubes. A refrigeration tube traverses the vacuum chamber, but exits one section and enters another through thermal standoffs for reducing heat-leak from the outer tube to the refrigeration tube. The refrigeration tube passes through a spirally wrapped shield within each section's vacuum chamber in a manner so that the refrigeration tube is in close thermal contact with the shield, but is nevertheless slideable with respect thereto.
摘要翻译： 多个低温包络部分连接在一起以形成输电线。 每个部分由具有多层金属化塑料的内管和外管组成，螺旋缠绕在形成在内管和外管之间的真空室内。 制冷管穿过真空室，但是通过热隔离件离开一个部分并进入另一个部分，以减少从外管到制冷管的热泄漏。 制冷管以每个部分的真空室中的螺旋形包裹的屏蔽件的方式通过，使得制冷管与屏蔽件紧密地热接触，但是仍然可以相对于其滑动。
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公开(公告)号：US3864926A
公开(公告)日：1975-02-11
申请号：US37210673
申请日：1973-06-21
发明人： COLLINS SAMUEL C
CPC分类号： F25J1/0007 , F25J1/001 , F25J1/0015 , F25J1/0017 , F25J1/0037 , F25J1/004 , F25J1/0042 , F25J1/0221 , F25J1/0224 , F25J1/0236 , F25J2210/42 , F25J2270/06 , F25J2270/912 , Y02E60/321 , Y10S505/888 , Y10S505/899
摘要： Method and apparatus for liquefying relatively large quantities of a cryogen, helium in particular. After the high-pressure fluid has been cooled through indirect heat exchange with a cold lowpressure stream it is isentropically expanded in an expansion engine. The rate of liquefaction may be increased by as much as 30 percent by substituting isentropic expansion for the conventional isenthalpic expansion.
摘要翻译： 液化相当大量的冷冻剂，特别是氦气的方法和装置。 在通过与冷的低压流的间接热交换来冷却高压流体之后，其在膨胀发动机中被等熵膨胀。 通过用等熵膨胀代替常规的等焓膨胀，液化速率可增加多达30％。
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公开(公告)号：US3650118A
公开(公告)日：1972-03-21
申请号：US3650118D
申请日：1969-10-20
发明人： O'NEIL JAMES A
CPC分类号： F25B9/14 , F02G1/0445 , F02G2250/18 , F02G2270/50 , F25B2309/003
摘要： A cryogenic apparatus in which fluid is circulated between fluid chambers through a fluid flow path including two or more regenerators, the coldest regenerator being positioned in a tubing affixed to the cold end and around which a portion of the displacer moves to define a low-temperature refrigeration chamber. An intermediate-temperature refrigeration chamber is defined within the displacer, thus forming a two-staged device with a single displacer. The arrangement is suitable for multistage apparatus and is applicable to several different cycles.
摘要翻译： 一种低温装置，其中流体通过包括两个或更多个再生器的流体流动路径在流体室之间循环，最冷的再生器定位在固定到冷端的管道中，一部分置换器移动以限定低温 制冷室。 定义在置换器内的中间温度制冷室，从而形成具有单个置换器的两级装置。 该装置适用于多级装置，适用于多个不同的循环。
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公开(公告)号：US3604769A
公开(公告)日：1971-09-14
申请号：US3604769D
申请日：1968-09-23
发明人： LATHAM ALLEN JR
摘要： An oil and air cooled rotating spindle. By means of an oil flow path, heat sinks and air-cooled surfaces, the spindle during operation may be constantly maintained at or near ambient temperature thus preventing any changes in temperature of the apparatus rotated by the spindle and hence in any material contained in the apparatus.
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公开(公告)号：US3565330A
公开(公告)日：1971-02-23
申请号：US3565330D
申请日：1968-07-11
发明人： LATHAM ALLEN JR
CPC分类号： F16J15/36 , B04B5/0442 , B04B2005/0464 , Y10S277/907
摘要： A rotary seal formed of a first rigid, low friction member which contacts a moving rigid member with minimal friction to make the dynamic seal, and a second elastomeric member which provides a resilient static seal and a spring action force between the surfaces of the dynamic seal. Means are provided to overcome any static friction or momentary aberrations encountered in startup. The seal is particularly suitable for centrifuges for continuous sterile operations such as in the treating of blood.
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公开(公告)号：US4118943A
公开(公告)日：1978-10-10
申请号：US665848
申请日：1976-03-17
申请人： Fred Freeman Chellis
发明人： Fred Freeman Chellis
CPC分类号： F02G1/0445 , F01B11/00 , F02G2250/18 , Y10S403/01 , Y10T403/74 , Y10T74/18208 , Y10T74/18992
摘要： A vuilleumier-cycle refrigeration system of the type including first and second communicating, sealed, cylindrical, vessels having first and second displacers respectively mounted therein in sliding, sealing contact with the inner walls thereof, includes magnetic linkage between the two displacers for driving the displacers within the sealed vessels without contaminating the sealed vessels. With regard to the magnetic linkage, there are smaller, auxiliary cylindrical vessels coupled respectively to the first and second vessels, having smaller diameters, and thinner walls than the first and second vessels. Rods attached to the displacers and extending into the auxiliary vessels have magnetic material followers attached thereto. Magnetic-material drivers are moveable along the auxiliary vessels, opposite the followers, to thereby attract and move the magnetic-material followers and their attached displacers.
摘要翻译： 一种包括第一和第二连通，密封，圆柱形容器的涡流循环制冷系统，其具有分别安装在其中的与其内壁滑动，密封接触的第一和第二置换器，包括用于驱动置换器的两个置换器之间的磁连接 在密封容器内，而不会污染密封容器。 关于磁连杆，有较小的辅助圆柱形容器分别连接到第一和第二容器，具有较小的直径和比第一和第二容器更薄的壁。 连接到置换器并延伸到辅助容器中的杆具有附接到其上的磁性材料从动件。 磁性材料驱动器沿着辅助容器移动，与追随者相对，从而吸引和移动磁性材料从动件及其附接的置换器。
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公开(公告)号：US4036027A
公开(公告)日：1977-07-19
申请号：US681936
申请日：1976-04-30
申请人： Walter H. Bamberg
发明人： Walter H. Bamberg
CPC分类号： F02G1/043 , F01B9/023 , F02G1/0445 , F02G2243/02 , F02G2244/12 , F02G2250/18
摘要： Refrigeration systems of the type including first and second communicating, sealed, cylindrical, vessels having respective first and second piston-like elements reciprocating axially therein are characterized by having the vessels positioned in a line along a single axis and having a rod or shaft extending along the axis through a sliding seal for connecting the piston-like elements. A coupling for connecting the rod with one of the piston-like elements allows "lost" axial motion of the rod, without a corresponding motion of the attached piston, over a first portion of the range of axial travel of the rod in both directions. An intercommunicating line is also included for intercommunicating appropriate ends of the elongated vessels.Such refrigeration systems can operate in various modes of operation, such as stirling-cycle modes of operation, and Vuilleumier-cycle modes of operation.
摘要翻译： 包括第一和第二连通，密封，圆柱形的容器的制冷系统具有相应的第一和第二活塞状元件在其中轴向往复运动的容器，其特征在于，容器沿着单个轴线定位成一条线，并且具有沿着 该轴通过用于连接活塞状元件的滑动密封件。 用于将杆与其中一个活塞式元件连接的联接件允许杆的“丢失”的轴向运动，而不会使连接的活塞的相应运动在杆的两个方向的轴向行程范围的第一部分上。 还包括一个相互连通的线路，用于相互连通细长血管的适当端部。
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公开(公告)号：US3945215A
公开(公告)日：1976-03-23
申请号：US443140
申请日：1974-02-14
申请人： Robert W. Johnson , Paul R. Doherty
发明人： Robert W. Johnson , Paul R. Doherty
IPC分类号： F16L51/02 , F16L59/065 , F17D1/08 , F17C7/02
CPC分类号： F16L59/065 , F16L51/02 , F16L51/025 , F17D1/082 , Y10S285/904 , Y10S505/897
摘要： A helium transfer line adapted to be constructed in extended lengths and to carry liquid helium and/or 4.2.degree.K helium gas with minimum loss of refrigeration capacity due to heat leaks into and through the line. The transfer line, in its basic structure, comprises a fluid helium process line, radiation shielding, vacuum jacketing and a cryogenic coolant line in thermal contact with the radiation shielding and carrying a cryogenic coolant such as liquid nitrogen. Line components, comprising heat-stationed bayonets with or without LN.sub.2 bypass lines, expansion/contraction joints, and flexible sections and, if desired, valves, ell-sections and tee-sections, are designed to be integrated into the basic structure so that this structure may be carried through essentially the entire length of the line. Various combinations of these components in the transfer line make it possible to adapt the transfer line to a wide range of requirements dictated by such factors as space, and the relative positions of the two or more points of connection, i.e., a source of liquid helium and a refrigeration load to be cooled by the liquid helium.
摘要翻译： 适用于延长长度构造的氦传输管线，并且由于热量泄漏并通过管路而具有最小的制冷能力损失的液态氦气和/或4.2°K氦气体。 传输线在其基本结构中包括流体氦处理线，辐射屏蔽，真空护套和与辐射屏蔽热接触并携带诸如液氮的低温冷却剂的低温冷却剂管线。 线组件包括具有或不具有LN2旁路管线的热站卡口，膨胀/收缩接头和柔性部分，以及如果需要的话，阀，椭圆形截面和三通部分被集成到基本结构中， 结构可以基本上贯穿该线的整个长度。 传输线中的这些组件的各种组合使得可以将传输线适应于由空间以及两个或多个连接点（即液氦源）等因素所规定的宽范围的要求 以及由液氦冷却的制冷负荷。
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10.发明授权
公开(公告)号：US3884259A
公开(公告)日：1975-05-20
申请号：US43498474
申请日：1974-01-21
发明人： HOSMER THOMAS P , JOHNSON ROBERT W
CPC分类号： F16K11/202 , Y10T137/7036 , Y10T137/87121
摘要： A three-way valve suitable for controlling the flow of a cryogenic fluid and of isolating zones of widely different pressures. Concentric valve stems, each terminating in a sealing means capable of making a fluid-tight, line seal between a highpressure zone and an evacuated zone, are moved to alternately open ports to attain fluid communication with a third port. Means are provided to eliminate pressure differentials across the valve stem screw drive means to eliminate gas forces which would otherwise be present in a valve operating between zones of different pressures. The three-way valve is particularly suitable in high-pressure clean up systems incorporating cold charcoal traps in alternating parallel fluid flow paths.
摘要翻译： 适用于控制低温流体流动和隔离不同压力区域的三通阀。 同心阀杆各自终止于能够使高压区域和抽空区域之间的流体密封的管路密封件的密封装置移动到交替打开的端口以实现与第三端口的流体连通。 提供装置以消除阀杆螺杆驱动装置上的压差，以消除否则将存在于在不同压力的区域之间操作的阀中的气体力。 三通阀特别适用于在交替的平行流体流动路径中结合有冷炭收集器的高压清洁系统。
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