GB1449192A - Temperature-staged cryogenic apparatus of stepped configuration with adjustable piston stroke - Google Patents

Temperature-staged cryogenic apparatus of stepped configuration with adjustable piston stroke

Info

Publication number
GB1449192A
GB1449192A GB5346473A GB5346473A GB1449192A GB 1449192 A GB1449192 A GB 1449192A GB 5346473 A GB5346473 A GB 5346473A GB 5346473 A GB5346473 A GB 5346473A GB 1449192 A GB1449192 A GB 1449192A
Authority
GB
United Kingdom
Prior art keywords
displacer
regenerator
displacers
cavity
smaller
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5346473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cryogenic Technology Inc
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
Publication of GB1449192A publication Critical patent/GB1449192A/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • 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
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/003—Gas cycle refrigeration machines characterised by construction or composition of the regenerator

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)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1449192 Refrigerating CRYOGENIC TECHNOLOGY Inc 16 Nov 1973 [21 Nov 1972] 53464/73 Heading F4H A refrigeration system having at least two low temperature zones 42, 43, comprises a stepped housing 10 formed of a large diameter section 11 and at least one smaller diameter section 12; a large diameter displacer 14 and a small diameter displacer 17, and driving means whereby the displacer 14 is reciprocated by a driving rod 20. The system is arranged so that the displacer 14 imparts a reciprocating motion to the displacer 17 in such a manner that the displacer 17 reciprocates with a stroke length which is less than that of displacer 17. In the embodiment shown, the displacers are linked by an annular flange 26 on the end of displacer 17 and an inwardly extending lip 27 about the entrance of a cavity 28 on the bottom of displacer 14. In another embodiment (Fig. 3, not shown) a third, intermediate displacer is provided. The displacer 14 has a regenerator 30, and the displacer 17 a regenerator 31. The basic fluid flow path within the refrigerator comprises a relatively warm chamber 15, one or more fluid conduits 32, the regenerator 30, the clearances around flange 26 and lip 27 connecting regenerator 30 with the first refrigeration chamber 16, regenerator 31 which is in direct fluid communication through cavity 28 with regenerator 30, one or more fluid conduits 33, and the second colder refrigeration chamber 18. High-pressure fluid is supplied by a high pressure fluid source, e.g. the discharge side of compressor 34, through line 35 and valve 36 and low-pressure fluid is exhausted into a lowpressure reservoir, e.g. the inlet side of compressor 34 through line 37 and valve 38. In other embodiments the linkage between the displacers may include a perforated disc (108, Fig. 4) at the base of the regenerator 30; a flow, path from the regenerator 30 through an annular space (113, Fig. 5) between the cavity 28 and the wall of the refrigerator; a post (118, Fig. 6) which is integral with the disc (108) and has a flanged end which engages inwardly extending lips of the displacer 17, the lips enclosing a cavity; or a spring (116, Fig. 7) located between and contacting the displacers 14, 17. In further embodiments (Figs. 16-19, not shown), the displacers 14, 17 have adjacent flat end surfaces, the smaller displacer being associated with spring means at its lower end. In operation, the larger displacer drives the smaller displacer downwardly, the smaller displacer returning under the action of the spring.
GB5346473A 1972-11-21 1973-11-16 Temperature-staged cryogenic apparatus of stepped configuration with adjustable piston stroke Expired GB1449192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00308409A US3802211A (en) 1972-11-21 1972-11-21 Temperature-staged cryogenic apparatus of stepped configuration with adjustable piston stroke

Publications (1)

Publication Number Publication Date
GB1449192A true GB1449192A (en) 1976-09-15

Family

ID=23193877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5346473A Expired GB1449192A (en) 1972-11-21 1973-11-16 Temperature-staged cryogenic apparatus of stepped configuration with adjustable piston stroke

Country Status (4)

Country Link
US (1) US3802211A (en)
JP (1) JPS4983043A (en)
DE (1) DE2356841A1 (en)
GB (1) GB1449192A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143021A (en) * 1983-06-17 1985-01-30 Cvi Inc Cryogenic refrigerator
GB2241565A (en) * 1990-02-28 1991-09-04 Nat Res Dev Cryogenic cooling apparatus
GB2301174A (en) * 1995-05-16 1996-11-27 Toshiba Kk A cooling system for cooling an object to a low temperature
GB2301426A (en) * 1995-05-16 1996-12-04 Toshiba Kk A cooling system for a superconducting magnet

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913339A (en) * 1974-03-04 1975-10-21 Hughes Aircraft Co Reduction in cooldown time for cryogenic refrigerator
US3981155A (en) * 1975-03-10 1976-09-21 The United States Of America As Represented By The Secretary Of The Air Force Plasma deposited rider rings for hot displacer
US3969907A (en) * 1975-03-25 1976-07-20 The United States Of America As Represented By The Secretary Of The Air Force Cold cylinder assembly for cryogenic refrigerator
US4019335A (en) * 1976-01-12 1977-04-26 The Garrett Corporation Hydraulically actuated split stirling cycle refrigerator
US4036027A (en) * 1976-04-30 1977-07-19 Cryogenic Technology, Inc. Lost-motion refrigeration drive system
DE3201496A1 (en) * 1982-01-20 1983-07-28 Leybold-Heraeus GmbH, 5000 Köln REFRIGERATOR
US4430863A (en) * 1982-06-07 1984-02-14 Air Products And Chemicals, Inc. Apparatus and method for increasing the speed of a displacer-expander refrigerator
DE8411307U1 (en) * 1984-04-11 1984-07-05 Leybold-Heraeus GmbH, 5000 Köln REFRIGERATOR
US5018357A (en) * 1988-10-11 1991-05-28 Helix Technology Corporation Temperature control system for a cryogenic refrigeration
DE3943772C2 (en) * 1988-11-09 1998-01-02 Mitsubishi Electric Corp Multi-stage gas refrigerator
US5099650A (en) * 1990-04-26 1992-03-31 Boreas Inc. Cryogenic refrigeration apparatus
DE4142368A1 (en) * 1990-12-21 1992-07-02 Hughes Aircraft Co Low temp. expansion equipment - has drive mechanism located in fixed position in housing
JP2824365B2 (en) * 1992-01-29 1998-11-11 三菱電機株式会社 Cool storage type refrigerator
JPH06201207A (en) * 1992-12-28 1994-07-19 Daikin Ind Ltd Vuilleumier heat pump device
NL9401251A (en) * 1994-08-01 1996-03-01 Hollandse Signaalapparaten Bv Stirling cooler.
DE10104969C2 (en) * 2001-02-03 2002-11-21 Aeg Infrarot Module Gmbh Cold part of a kyro cooler with improved heat transfer
US7137259B2 (en) * 2003-12-05 2006-11-21 Superconductor Technologies Inc. Cryocooler housing assembly apparatus and method
US8490414B2 (en) * 2007-05-16 2013-07-23 Raytheon Company Cryocooler with moving piston and moving cylinder
JP5632241B2 (en) * 2010-09-13 2014-11-26 住友重機械工業株式会社 Cryo pump and cryogenic refrigerator
US9334854B2 (en) * 2014-06-20 2016-05-10 Michael Minovitch Closed-cycle cryogenic engine and operating method for propelling vehicles and generating electricity
US11215385B2 (en) * 2015-01-28 2022-01-04 Sumitomo (Shi) Cryogenic Of America, Inc. Hybrid Gifford-McMahon-Brayton expander
US10422329B2 (en) 2017-08-14 2019-09-24 Raytheon Company Push-pull compressor having ultra-high efficiency for cryocoolers or other systems
US10753653B2 (en) * 2018-04-06 2020-08-25 Sumitomo (Shi) Cryogenic Of America, Inc. Heat station for cooling a circulating cryogen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508315A (en) * 1943-04-06 1950-05-16 Hartford Nat Bank & Trust Comp Hot gas motor with phase changer
US3218815A (en) * 1964-06-17 1965-11-23 Little Inc A Cryogenic refrigeration apparatus operating on an expansible fluid and embodying a regenerator
US3416307A (en) * 1966-08-31 1968-12-17 Gen Motors Corp Variable power and variable direction engine and split torque phase changing device
US3416308A (en) * 1967-05-05 1968-12-17 Gen Motors Corp Variable power and variable direction engine and compound planetary phase changing device
US3673809A (en) * 1970-02-10 1972-07-04 Cryogenic Technology Inc In-line multistage cryogenic apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143021A (en) * 1983-06-17 1985-01-30 Cvi Inc Cryogenic refrigerator
GB2241565A (en) * 1990-02-28 1991-09-04 Nat Res Dev Cryogenic cooling apparatus
GB2241565B (en) * 1990-02-28 1994-09-21 Nat Res Dev Cryogenic cooling apparatus
GB2301174A (en) * 1995-05-16 1996-11-27 Toshiba Kk A cooling system for cooling an object to a low temperature
GB2301426A (en) * 1995-05-16 1996-12-04 Toshiba Kk A cooling system for a superconducting magnet
GB2301174B (en) * 1995-05-16 1998-03-04 Toshiba Kk Regenerator-type refrigerator having a plurality of cooling stages
GB2301426B (en) * 1995-05-16 1999-05-19 Toshiba Kk A refrigerator having a plurality of cooling stages

Also Published As

Publication number Publication date
JPS4983043A (en) 1974-08-09
US3802211A (en) 1974-04-09
DE2356841A1 (en) 1974-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee