GB1042975A - Improvements in or relating to methods of absorbing thermal energy at low temperatures - Google Patents

Improvements in or relating to methods of absorbing thermal energy at low temperatures

Info

Publication number
GB1042975A
GB1042975A GB2901963A GB2901963A GB1042975A GB 1042975 A GB1042975 A GB 1042975A GB 2901963 A GB2901963 A GB 2901963A GB 2901963 A GB2901963 A GB 2901963A GB 1042975 A GB1042975 A GB 1042975A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
medium
shown
space
expanded
piston
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
GB2901963A
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
Koninklijke Philips 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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B9/00Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle

Abstract

1,042,975. Refrigerating. PHILIPS GLOEILAMPENFABRIEKEN N.V. July 23, 1963 [July 26, 1962], No. 29019/63. Heading F4H. In a refrigerating cycle of the type in which a working medium is compressed, cooled in a heatexchanger, expanded, warmed in said heat exchanger and re-compressed, the pressure of the working medium is maintained above its critical pressure at all points in the cycle and the expansion takes place at temperatures below the critical temperature of the working medium. The cycle may be performed in a conventional reversed hot-gas engine (Fig. 1, not shown) or one having a stepped displacer piston (Fig. 4, not shown). Alternatively, and as shown, working medium from a reservoir 27 is supplied through a regenerator 26 to an expansion space 32 above a compound piston 21, 23 when a valve 30 is opened. When the pistons move downwardly valve 30 is closed and the medium in space 32 is expanded, the expanded medium being displaced from space 32 to a compression space 34 via regenerator 26, valve 31 and duct 33 as the pistons move upwardly. The medium is compressed on the next downward stroke and returned to reservoir 27. In a further embodiment a space 40 above a piston 41 (Fig. 3, not shown) is selectively connectible via a regenerator 46 to high and low pressure reservoirs 52, 49, while in Fig. 5 (not shown) the apparatus comprises a compressor 91, expansion piston 94, a counterflow heat exchanger 92 and a further heat exchanger 95 in which the expanded medium cools a load 96.
GB2901963A 1962-07-26 1963-07-23 Improvements in or relating to methods of absorbing thermal energy at low temperatures Expired GB1042975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL281459 1962-07-26

Publications (1)

Publication Number Publication Date
GB1042975A true true GB1042975A (en) 1966-09-21

Family

ID=19754010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2901963A Expired GB1042975A (en) 1962-07-26 1963-07-23 Improvements in or relating to methods of absorbing thermal energy at low temperatures

Country Status (5)

Country Link
US (1) US3214924A (en)
JP (1) JPS5113900B1 (en)
DE (1) DE1426987A1 (en)
ES (1) ES290262A1 (en)
GB (1) GB1042975A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245836A (en) * 1989-01-09 1993-09-21 Sinvent As Method and device for high side pressure regulation in transcritical vapor compression cycle
US6923011B2 (en) 2003-09-02 2005-08-02 Tecumseh Products Company Multi-stage vapor compression system with intermediate pressure vessel
US6959557B2 (en) 2003-09-02 2005-11-01 Tecumseh Products Company Apparatus for the storage and controlled delivery of fluids
US7096679B2 (en) 2003-12-23 2006-08-29 Tecumseh Products Company Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1388726A (en) * 1963-10-14 1965-02-12 Air Liquide A method for vacuum holding of an enclosure
BE667354A (en) * 1964-07-25
NL6513117A (en) * 1965-10-09 1967-04-10
NL6515725A (en) * 1965-12-05 1967-06-05
JPH0660769B2 (en) * 1983-06-24 1994-08-10 アイシン精機株式会社 How to efficiently absorb thermal energy at a low temperature
DE3836884C2 (en) * 1988-10-29 1997-10-02 Leybold Ag A method for assaying a sample and located on the cold head of a refrigerator cryostat cryostat
JP5067260B2 (en) * 2008-05-20 2012-11-07 いすゞ自動車株式会社 Free-piston Stirling cycle machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169308A (en) * 1909-01-06 1916-01-25 Trajan Vuia Hot-air engine with closed circuit.
US2567454A (en) * 1947-10-06 1951-09-11 Taconis Krijn Wijbren Process of and apparatus for heat pumping
NL90073C (en) * 1954-03-19
NL113898C (en) * 1957-11-14
US3045436A (en) * 1959-12-28 1962-07-24 Ibm Pneumatic expansion method and apparatus
NL105832C (en) * 1960-06-01
NL112393C (en) * 1960-06-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245836A (en) * 1989-01-09 1993-09-21 Sinvent As Method and device for high side pressure regulation in transcritical vapor compression cycle
US6923011B2 (en) 2003-09-02 2005-08-02 Tecumseh Products Company Multi-stage vapor compression system with intermediate pressure vessel
US6959557B2 (en) 2003-09-02 2005-11-01 Tecumseh Products Company Apparatus for the storage and controlled delivery of fluids
US7096679B2 (en) 2003-12-23 2006-08-29 Tecumseh Products Company Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device

Also Published As

Publication number Publication date Type
DE1426987A1 (en) 1969-05-29 application
NL113392C (en) grant
ES290262A1 (en) 1963-08-16 application
JPS5113900B1 (en) 1976-05-04 grant
NL281459A (en) application
US3214924A (en) 1965-11-02 grant
BE635373A (en) grant

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