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IT951103B - PROCEDURE AND APPARATUS FOR COOLING A LOAD - Google Patents

PROCEDURE AND APPARATUS FOR COOLING A LOAD

Info

Publication number
IT951103B
IT951103B IT6722472A IT6722472A IT951103B IT 951103 B IT951103 B IT 951103B IT 6722472 A IT6722472 A IT 6722472A IT 6722472 A IT6722472 A IT 6722472A IT 951103 B IT951103 B IT 951103B
Authority
IT
Italy
Prior art keywords
load
cryogenic
refrigeration
station
copper
Prior art date
Application number
IT6722472A
Other languages
Italian (it)
Original Assignee
Cryogenic Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cryogenic Technology Inc filed Critical Cryogenic Technology Inc
Application granted granted Critical
Publication of IT951103B publication Critical patent/IT951103B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/044—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines having at least two working members, e.g. pistons, delivering power output
    • F02G1/0445—Engine plants with combined cycles, e.g. Vuilleumier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/006—Thermal coupling structure or interface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2250/00—Special cycles or special engines
    • F02G2250/18—Vuilleumier cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F2013/005—Thermal joints
    • F28F2013/008—Variable conductance materials; Thermal switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1375434 Cryogenic pumps CRYOGENIC TECHNOLOGY Inc 24 Jan 1972 [28 Jan 1971 30 April 1971] 3268/72 Heading FIN [Also in Division F4] A cryogenic pumping apparatus for cooling a load 39, Fig. 1, e.g. an infrared detector, electronic component, or spectroscopic sample, to a predetermined cryogenic temperature level whilst remaining thermally insulated in a vacuum in an apparatus comprising a fluid tight housing 20 divided into evacuable chambers 22,25, the load being cooled by a constant source 26 of refrigeration which is controllably thermally engaged with the load by external actuating means 43, 44. The refrigeration source 26 may be a mechanical refrigerator based on the Stirling cycle, or use liquified gases, Fig. 3 (not shown), or as shown a refrigerator having stages 28, 29 positioned within the chamber 25 and having a first or refrigerator heat station 30 delivering refrigeration from a cryogenic fluid such as helium circulating through the refrigerator. A copper strip 40 is secured to the station 30 to be engaged or disengaged by a copper screw 38 in a low thermally conducting wall 35 of the chamber 25, which screw acts a second, or refrigeration-load station and to which the load 39 is thermally connected. The wall 35 is covered by a member 37 formed of copper through which the screw 35 protrudes. The strip is controlled by a manually operated rod 43 and spring 44. The chamber is evacuated through valved lines 47, 48 to a rough vacuum pump and an ion pipe and the member 37 and station 30 serve as cryopumps. Various embodiments of thermal switches are described including a helical copper spring as in Figs. 5 to 7 (not shown), a highpressure helium circuit, Fig. 8 (not shown), or a manually operated plunger formed within a housing of alternately thick and thin walled sections of differing thermal conductivity, the voids being filled with helium and the plunger being movable by rack and pinion, bellows, electrical or manual means.
IT6722472A 1971-01-28 1972-01-26 PROCEDURE AND APPARATUS FOR COOLING A LOAD IT951103B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11067871A 1971-01-28 1971-01-28
US13905771A 1971-04-30 1971-04-30

Publications (1)

Publication Number Publication Date
IT951103B true IT951103B (en) 1973-06-30

Family

ID=26808288

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6722472A IT951103B (en) 1971-01-28 1972-01-26 PROCEDURE AND APPARATUS FOR COOLING A LOAD

Country Status (4)

Country Link
DE (1) DE2203844A1 (en)
FR (1) FR2123493B3 (en)
GB (1) GB1375434A (en)
IT (1) IT951103B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183810A (en) * 1985-11-20 1987-06-10 British Aerospace Heat transfer device
WO1987005990A1 (en) * 1986-03-25 1987-10-08 Ortec, Incorporated Modular photon detector cryostat assembly and system
GB8627288D0 (en) * 1986-11-14 1986-12-17 Marconi Co Ltd Cold stage for microscope
US6622515B2 (en) 2000-12-19 2003-09-23 Itb Solutions Llc Interruptible thermal bridge system
US6351952B1 (en) * 2000-12-19 2002-03-05 Goodfaith Innovations, Inc. Interruptible thermal bridge system
DE102007055712A1 (en) * 2007-12-05 2009-06-18 Bruker Biospin Ag Measuring module for rapid measurement of electrical, electronic and mechanical components at cryogenic temperatures and measuring device with such a measuring module

Also Published As

Publication number Publication date
GB1375434A (en) 1974-11-27
FR2123493A3 (en) 1972-09-08
FR2123493B3 (en) 1975-02-14
DE2203844A1 (en) 1972-08-24

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