公开(公告)号：US20230181230A1

公开(公告)日：2023-06-15

申请号：US17644468

申请日：2021-12-15

Applicant: Metrum Cryoflex Sp. z. o. o., Sp. k.

Inventor： Wieslaw BROJEK

IPC: A61B18/02 ,  F25B9/02

CPC classification number: A61B18/02 ,  F25B9/02 ,  A61B2018/0212 ,  A61B2018/00101

Abstract: A cryoprobe for cryotherapy, includes a working and a drain tube, welded together. The working tube has a first end, a distal end, an internal surface, an external surface, an inner diameter, and an outer diameter. The drain tube is placed concentrically in the working tube, and has an internal surface, an external surface, an inner diameter, an outer diameter, a first end connected to a first pressure supply, and a perforated second end which is proximate to the distal end of the working tube. The drain tube is welded to the working tube between the internal surface of the working tube and the external surface of the drain tube to manufacture a throttle perforation, in a manner which allows fluid to pass along the outer surface of the drain tube, expand at the distal end of the working tube, and drain through the drain tube.

公开(公告)号：US10054357B2

公开(公告)日：2018-08-21

申请号：US15291712

申请日：2016-10-12

Applicant: Raytheon Company

Inventor： Paul L. Buelow

IPC: F25D19/00 ,  G01N5/04 ,  F25B21/02 ,  F25B9/02 ,  F41G7/22

CPC classification number: F25D19/00 ,  F17C2227/03 ,  F25B9/02 ,  F25B21/02 ,  F41G7/2253 ,  F41G7/2293 ,  G01N5/04 ,  G01N29/022 ,  G01N29/222 ,  G01N2291/0256

Abstract: A purity monitor is provided. The purity monitor includes a cryo-cooler and a piezo-electric crystal microbalance that may have a matte finish. The cryo-cooler includes a nozzle and plumbing components disposed to supply a fluid having a working pressure of up to 10,000 psig to the nozzle. The nozzle provides for locating substantially all of a pressure drop of the cryo-cooler near an exit thereof. The nozzle sprays fluid onto the piezo-electric crystal microbalance and the piezo-electric crystal microbalance measures a mass of non-volatile residue (NVR) left thereon by the spraying. Respective temperatures of the fluid and the piezo-electric crystal microbalance are controllable based on a type of the NVR.

公开(公告)号：US20180142937A1

公开(公告)日：2018-05-24

申请号：US15291712

申请日：2016-10-12

Applicant: Raytheon Company

Inventor： Paul L. Buelow

IPC: F25D19/00 ,  G01N5/04 ,  F25B9/02 ,  F25B21/02

CPC classification number: F25D19/00 ,  F17C2227/03 ,  F25B9/02 ,  F25B21/02 ,  F41G7/2253 ,  F41G7/2293 ,  G01N5/04 ,  G01N29/022 ,  G01N29/222 ,  G01N2291/0256

Abstract: A purity monitor is provided. The purity monitor includes a cryo-cooler and a piezo-electric crystal microbalance that may have a matte finish. The cryo-cooler includes a nozzle and plumbing components disposed to supply a fluid having a working pressure of up to 10,000 psig to the nozzle. The nozzle provides for locating substantially all of a pressure drop of the cryo-cooler near an exit thereof. The nozzle sprays fluid onto the piezo-electric crystal microbalance and the piezo-electric crystal microbalance measures a mass of non-volatile residue (NVR) left thereon by the spraying. Respective temperatures of the fluid and the piezo-electric crystal microbalance are controllable based on a type of the NVR.

公开(公告)号：US20180128516A1

公开(公告)日：2018-05-10

申请号：US15864377

申请日：2018-01-08

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Patrick Champagne

IPC: F25B9/02 ,  F04B39/10 ,  F04B39/00 ,  F04B35/04 ,  F16F1/18 ,  F04B53/00 ,  F04B49/22 ,  F25B1/02

CPC classification number: F25B9/02 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/10 ,  F04B49/225 ,  F04B53/00 ,  F16F1/185 ,  F25B1/02 ,  F25B2400/073 ,  F25B2400/074 ,  Y10T137/85978

Abstract: Variations of the devices and methods disclosed herein pertain to an extended travel spiral flexure bearing having spiral arms, each of the spiral arms including an attachment point at the inner end thereof and at the outer end thereof. Variations of the bearing may also include a bearing clamp to be attached to the spiral flexure bearing at the attachment points, the bearing including an outer bearing portion to be disposed on the outer periphery of the flexure bearing and an inner bearing portion to be disposed at the center of the flexure bearing. Variations also pertain to a micro check valve assembly that includes a valve base, a valve cover, and a flexure that are all bonded together. The valve being closed when the valve door rests on the valve seat and open when the valve door is lifted from the valve seat.

公开(公告)号：US20170343246A1

公开(公告)日：2017-11-30

申请号：US15534332

申请日：2015-12-10

Applicant: CERN European Organization for Nuclear Research

Inventor： Friedrich HAUG ,  Daniel BERKOWITZ

IPC: F25B9/02 ,  F25B9/10 ,  F25D19/00 ,  F25J1/02

CPC classification number: F25B9/02 ,  F25B9/002 ,  F25B9/10 ,  F25B9/14 ,  F25B41/04 ,  F25B2400/04 ,  F25B2500/01 ,  F25D19/006 ,  F25J1/0221

Abstract: There is provided refrigeration system (1) and method for remote cooling of a thermal load having a first portion (27) and a second portion (25). The system comprises a cold source (4) having a first cooling stage (5) and a second cooling stage (6), the temperature of the first cooling stage being higher than the temperature of the second cooling stage. The system also comprises a cryogen circuit for circulation of a cryogen flow in a closed cycle, the closed cycle being thermally coupled to the cold source. The system further comprises a compressor (7) for compressing and circulating the cryogen flow in the cryogen circuit. The cryogen circuit comprises a first conduit for thermally connecting the first cooling stage of the cold source to the first portion of the thermal load so as to cool said first portion towards the temperature of the first cooling stage, and a second conduit for thermally connecting the second cooling stage of the cold source to the second portion of the thermal load so as to cool said second portion to wards the temperature of the second cooling stage. The cryogen flow in the system is a sub-cooled or saturated liquid, two phase, saturated or overheated, supercritical gas helium flow.

公开(公告)号：US09784505B2

公开(公告)日：2017-10-10

申请号：US13894538

申请日：2013-05-15

Applicant: Lockheed Martin Corporation—Missiles and Fire Control

Inventor： Jeffrey R. Olson

IPC: F28D15/04 ,  F28F21/06 ,  F25B9/02 ,  F28D7/16

CPC classification number: F28D15/046 ,  F25B9/02 ,  F25B2309/02 ,  F25B2309/022 ,  F28D7/1615 ,  F28F21/06 ,  F28F21/062 ,  F28F2260/02

Abstract: A heat exchanger for use with a refrigeration device having a FPA disposed therein being comprised of a polymeric composite mesh material having a hot end and a cold end and defining an array of weft capillaries interwoven with a perpendicular array of warp strands. The array of weft capillaries may include a plurality of high pressure inlet capillaries for channeling and distributing high pressure gas from an inlet at the hot end to a Joule-Thomson orifice at the cold end, a plurality of low pressure outlet capillaries for channeling and distributing high pressure gas from a Joule-Thomson orifice to an outlet of the heat exchanger, and a plurality of low thermal conductivity fibers interspersed between the high pressure inlet capillaries and the low pressure outlet capillaries. In example embodiments. the array of warp strands comprises at least one or more of carbon fibers, copper fibers or glass fibers.

公开(公告)号：US20160282042A1

公开(公告)日：2016-09-29

申请号：US15078585

申请日：2016-03-23

Applicant: Colin NIKIFORUK

Inventor： Colin NIKIFORUK

IPC: F25J1/00 ,  F25J1/02 ,  F25B9/02

CPC classification number: F25J1/0022 ,  F25B9/02 ,  F25B15/04 ,  F25B25/02 ,  F25J1/0007 ,  F25J1/001 ,  F25J1/0012 ,  F25J1/0015 ,  F25J1/0017 ,  F25J1/002 ,  F25J1/0027 ,  F25J1/004 ,  F25J1/0221 ,  F25J1/0225 ,  F25J1/0227 ,  F25J1/0236 ,  F25J1/0242 ,  F25J2205/84 ,  F25J2210/62 ,  F25J2220/68 ,  F25J2230/04 ,  F25J2230/30 ,  F25J2270/906 ,  Y02A30/277 ,  Y02B30/62

Abstract: A method for liquefaction of industrial gases or gas mixtures (hydrocarbon and/or non-hydrocarbon) uses a modified aqua-ammonia absorption refrigeration system (ARP) that is used to chill the gas or gas mixture during the liquefaction process. The gas may be compressed to above its critical point, and the heat of compression energy may be recovered to provide some or all of the thermal energy required to drive the ARP. The method utilizes a Joule Thomson (JT) adiabatic expansion process which results in no requirement for specialty cryogenic rotating equipment. The aqua-ammonia absorption refrigeration system includes a vapour absorber tower (VAT) which permits the recovery of some or all of the heat of solution and heat of condensation energy in the system when anhydrous ammonia vapour is absorbed into a subcooled lean aqua-ammonia solution. The modified ARP with VAT may achieve operating pressures as low as 10 kPa which results in ammonia gas chiller operating temperatures as low as −71 C.

Abstract translation: 用于液化工业气体或气体混合物（烃类和/或非烃类）的方法使用在液化过程中用于冷却气体或气体混合物的改性水 - 氨吸收制冷系统（ARP）。 气体可能被压缩到其临界点以上，并且可以恢复压缩能量的热量以提供驱动ARP所需的一些或全部热能。 该方法采用焦耳汤姆逊（JT）绝热膨胀工艺，不需要特殊的低温旋转设备。 吸收氨水的制冷系统包括蒸气吸收塔（VAT），当无水氨蒸汽被吸收到过冷的稀氨水溶液中时，该蒸气吸收塔允许回收部分或全部溶液热量和系统中的冷凝能量 。 增值税的改性ARP可以达到低至10kPa的操作压力，这导致氨气冷冻机的操作温度低至-71℃。

公开(公告)号：US20150013349A1

公开(公告)日：2015-01-15

申请号：US14378019

申请日：2012-03-23

Applicant: Wenqing Dong ,  Wei Chao ,  Jie Chen ,  Ao Li ,  Jinlin Gao

Inventor： Wenqing Dong ,  Wei Chao ,  Jie Chen ,  Ao Li ,  Jinlin Gao

IPC: F25J1/00 ,  F25B9/14 ,  F25B9/02

CPC classification number: F25J1/00 ,  F25B9/02 ,  F25B9/14 ,  F25B9/145 ,  F25J3/0685 ,  F25J3/069 ,  F25J3/08 ,  F25J2215/30 ,  F25J2215/32 ,  F25J2270/908

Abstract: A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary, secondary and quaternary heat exchanger, at least one small-sized low-temperature refrigerating machine, and at least one liquid collecting tank. The small-sized low-temperature refrigerating machine includes a first cold head and a second cold head, the secondary heat exchanger is provided on the first cold head to form a primary cold head heat exchanger, the quaternary heat exchanger is provided on the second cold head to form a secondary cold head heat exchanger, a mixed gas outlet is connected to an inlet of the primary cold head heat exchanger. By using primary and secondary cold heads of the small-sized low-temperature refrigerating machine as cold sources, gases having different condensing temperature are liquefied and solidified separately, and two or more gases can be separated and purified at a lower cost.

Abstract translation: 一种基于小型低温冷冻机分离和净化气体的低温装置，包括一级，二级和四级热交换器，至少一台小型低温冷冻机和至少一个液体收集罐 。 小型低温冷冻机包括第一冷头和第二冷头，二次热交换器设置在第一冷头上以形成主冷头热交换​​器，四级热交换器设置在第二冷 头部形成二次冷头热交换​​器，混合气体出口连接到主冷头热交换​​器的入口。 通过使用小型低温冷冻机的一级和二级冷头作为冷源，具有不同冷凝温度的气体分别液化和固化，可以以较低的成本分离和净化两种或更多种气体。

公开(公告)号：US08610434B2

公开(公告)日：2013-12-17

申请号：US13188270

申请日：2011-07-21

Applicant: Arthur H. Heiss ,  Ajay Khatri

Inventor： Arthur H. Heiss ,  Ajay Khatri

IPC: G01V3/00

CPC classification number: F25B9/02 ,  F25B25/00 ,  G01N24/10 ,  G01R33/31 ,  G01R33/38 ,  G01R33/3806 ,  G01R33/60

Abstract: In an electron paramagnetic resonance spectrometer, a closed cycle cryocooler is used to cool gaseous helium, which is then circulated around a sample to cool the sample by direct convection. Since the sample is not mechanically connected to the refrigerator, no vibrations are transmitted from the refrigerator to the sample and the sample can be quickly removed and replaced. The cooled helium can be passed through a Joule-Thomson expansion device before circulating the cooled helium around the sample to further cool the helium. In addition, a vacuum pump can be connected to the helium outlet after circulating the cooled helium around the sample to increase the pressure differential across the Joule-Thomson expansion device and further cool the helium. In order to raise the temperature of the cooled helium, a heater can be placed about the cooled helium line upstream from the sample.

Abstract translation: 在电子顺磁共振光谱仪中，使用封闭循环的低温冷却器来冷却气态氦气，然后将其循环在样品周围，通过直接对流冷却样品。 由于样品没有机械地连接到冰箱，所以没有振动从冰箱传输到样品，并且可以快速地取出和更换样品。 冷却的氦气可以通过焦耳 - 汤姆逊膨胀装置，然后将冷却的氦气循环到样品周围，以进一步冷却氦气。 此外，在将冷却的氦气循环到样品周围之后，真空泵可以连接到氦出口，以增加焦耳 - 汤姆森膨胀装置的压差，并进一步冷却氦气。 为了提高冷氦的温度，可以在样品上游的冷却氦管线周围放置加热器。

公开(公告)号：US20130186109A1

公开(公告)日：2013-07-25

申请号：US13812838

申请日：2011-07-22

Applicant: Milind Diwakar Atrey ,  Prasanna Subhash Gandhi ,  Girish Jayant Phatak

Inventor： Milind Diwakar Atrey ,  Prasanna Subhash Gandhi ,  Girish Jayant Phatak

IPC: F28F3/08

CPC classification number: F28F3/08 ,  F25B9/02 ,  F28D9/0062 ,  F28F21/04 ,  F28F2250/104 ,  F28F2260/02 ,  Y10T29/49359

Abstract: A counter flow heat exchanger comprising a body formed of stacked, fused, ceramic sheets. The sheets comprising: a bottom sheet, a second sheet, a third sheet, a fourth sheet and a top sheet. The sheets have punched holes such that when the sheets are aligned there is an inlet hole spanning from the top sheet to the fourth sheet, an outlet hole spanning from the top sheet to the second sheet, and an inflow hole spanning from the fourth sheet to the second sheet. Within the second sheet, a low pressure flow channel connects the outlet hole with the inflow hole. Within the fourth sheet, the inlet hole flows into a high pressure flow channel which flows into a narrow flow path which then empties into the inflow hole. The high pressure flow channel is aligned with the low pressure flow channel to allow for heat exchange.

Abstract translation: 一种逆流式热交换器，包括由堆叠的熔融陶瓷片形成的主体。 该片材包括：底片，第二片，第三片，第四片和顶片。 这些片材具有穿孔，使得当片材对准时，具有从顶片到第四片的跨越的入口孔，从顶片到第二片的跨越的出口孔和从第四片延伸到 第二张。 在第二片中，低压流动通道将出口孔与流入孔连接。 在第四片中，入口孔流入流入狭窄流动路径的高压流动通道，然后空气流入流入孔。 高压流动通道与低压流动通道对准以允许热交换。