GB1483356A - Cryogenic refrigerator - Google Patents

Cryogenic refrigerator

Info

Publication number
GB1483356A
GB1483356A GB39061/74A GB3906174A GB1483356A GB 1483356 A GB1483356 A GB 1483356A GB 39061/74 A GB39061/74 A GB 39061/74A GB 3906174 A GB3906174 A GB 3906174A GB 1483356 A GB1483356 A GB 1483356A
Authority
GB
United Kingdom
Prior art keywords
displacer
working medium
refrigerator
gap
regenerator
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
GB39061/74A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB1483356A publication Critical patent/GB1483356A/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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics
    • 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)
  • Lubricants (AREA)

Abstract

1483356 Refrigerating PHILIPS GLOEILAMPENFABRIEKEN NV 6 Sept 1974 [11 Sept 1973] 39061/74 Heading F4H In a cryogenic refrigerator having a displacer 2 and piston 3 arranged to reciprocate with a phase difference and defining a compression space 6 and expansion space 8, a cooling unit 7 and a main regenerator 11 incorporated in a duct 10 and containing for example, lead balls; an auxiliary regenerator is connected in parallel with the main regenerator 11 and is formed by the annular gap between the displacer 2 and the cylinder 1a. The walls 2b of the displacer and the cylinder wall la are of stainless steel. The working medium is preferably helium. The hydraulic diameter d h of the annular gap satisfies the relation: where s=stroke length of the displacer 2; #= mean dynamic viscosity of the working medium flowing through the gap during operation of the refrigerator; L = length of the gap in the axial direction; #=mean density of the working medium flowing through the gap during operation of the refrigerator; ##=mean pressure drop through the main regenerator 11.
GB39061/74A 1973-09-11 1974-09-06 Cryogenic refrigerator Expired GB1483356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7312488.A NL157711B (en) 1973-09-11 1973-09-11 CHILLING MACHINE WITH REGENERATOR.

Publications (1)

Publication Number Publication Date
GB1483356A true GB1483356A (en) 1977-08-17

Family

ID=19819571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39061/74A Expired GB1483356A (en) 1973-09-11 1974-09-06 Cryogenic refrigerator

Country Status (11)

Country Link
JP (1) JPS5332913B2 (en)
BR (1) BR7407483D0 (en)
CA (1) CA997578A (en)
CH (1) CH574588A5 (en)
DE (1) DE2442556A1 (en)
FR (1) FR2243401B1 (en)
GB (1) GB1483356A (en)
IN (1) IN142117B (en)
IT (1) IT1020734B (en)
NL (1) NL157711B (en)
SE (1) SE406369B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291960A (en) * 1994-08-03 1996-02-07 Hughes Aircraft Co Cryocooler system with welded cold tip
US7213399B2 (en) 2002-06-29 2007-05-08 Oerlikon Leybold Vacuum Gmbh Refrigerator comprising a regenerator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2291960A (en) * 1994-08-03 1996-02-07 Hughes Aircraft Co Cryocooler system with welded cold tip
GB2291960B (en) * 1994-08-03 1999-02-17 Hughes Aircraft Co Cryocooler system with welded cold tip
US7213399B2 (en) 2002-06-29 2007-05-08 Oerlikon Leybold Vacuum Gmbh Refrigerator comprising a regenerator

Also Published As

Publication number Publication date
CH574588A5 (en) 1976-04-15
IT1020734B (en) 1977-12-30
CA997578A (en) 1976-09-28
BR7407483D0 (en) 1975-09-09
NL157711B (en) 1978-08-15
JPS5332913B2 (en) 1978-09-11
NL7312488A (en) 1975-03-13
SE406369B (en) 1979-02-05
SE7411325L (en) 1975-03-12
JPS5055951A (en) 1975-05-16
IN142117B (en) 1977-06-04
FR2243401B1 (en) 1978-02-17
DE2442556A1 (en) 1975-03-13
FR2243401A1 (en) 1975-04-04

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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