GB1335855A - Cold-gas machine - Google Patents

Cold-gas machine

Info

Publication number
GB1335855A
GB1335855A GB6176170A GB6176170A GB1335855A GB 1335855 A GB1335855 A GB 1335855A GB 6176170 A GB6176170 A GB 6176170A GB 6176170 A GB6176170 A GB 6176170A GB 1335855 A GB1335855 A GB 1335855A
Authority
GB
United Kingdom
Prior art keywords
cold
seal
space
compression space
gap
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
GB6176170A
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 GB1335855A publication Critical patent/GB1335855A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

1335855 Cold-gas machines PHILIPS GLOEILAMPENFABRIEKEN NV 30 Dec 1970 [2 Jan 1970] 61761/70 Heading F4H In a cold-gas machine, that is either a coldgas refrigerator or a cold-gas engine, which comprises two piston-like members 2, 3 reciprocable in a cylinder 1, an annular seal 16 of synthetic resin is disposed to inhibit the flow of working medium through the gap between the expansion space 15 and the compression space 10. If medium flows from the compression space along the seal 16 into the gap 14, contaminant present in the medium will freeze out on the cold walls of the gap. To prevent this, a duct 18 opens out of the wall of the piston-like member 3 (shown as a displacer) or the wall of the cylinder at a point which is at all times between the planes containing the axial extremities of the seal, the duct communicating with a buffer space 19 which communicates with the compression space through a second duct 20 incorporating a non-return valve 21 opening towards the compression space. By suitable choice of the volume of the buffer space 19 it is possible to avoid substantially entirely any return flow of medium along the seal.
GB6176170A 1970-01-02 1970-12-30 Cold-gas machine Expired GB1335855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7000001A NL7000001A (en) 1970-01-02 1970-01-02

Publications (1)

Publication Number Publication Date
GB1335855A true GB1335855A (en) 1973-10-31

Family

ID=19809005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6176170A Expired GB1335855A (en) 1970-01-02 1970-12-30 Cold-gas machine

Country Status (9)

Country Link
US (1) US3688512A (en)
JP (1) JPS4918299B1 (en)
CA (1) CA919927A (en)
CH (1) CH524795A (en)
DE (1) DE2061073C3 (en)
FR (1) FR2075113A5 (en)
GB (1) GB1335855A (en)
NL (1) NL7000001A (en)
SE (1) SE359160B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124968A1 (en) * 1983-03-15 1984-11-14 Interox Chemicals Limited Peroxygen compounds, a process for their manufacture, and processes and compositions for their use in bleaching, disinfecting, sanitising or washing
GB2195754B (en) * 1986-09-04 1991-03-13 Raytheon Co Seal-less cryogenic expander

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807904A (en) * 1971-03-05 1974-04-30 M Schuman Oscillating piston apparatus
US3848877A (en) * 1973-02-05 1974-11-19 United Stirling Ab & Co Seal for piston rod of stirling engine
US4019336A (en) * 1973-09-11 1977-04-26 U.S. Philips Corporation Refrigerator
US4553398A (en) * 1984-02-03 1985-11-19 Helix Technology Corporation Linear motor compressor with pressure stabilization ports for use in refrigeration systems
US4633668A (en) * 1984-04-30 1987-01-06 Mechanical Technology Incorporated Two piston V-type Stirling engine
JPH0631615B2 (en) * 1986-12-16 1994-04-27 三菱電機株式会社 Gas compressor
US4774808A (en) * 1987-07-06 1988-10-04 Otters John L Displacer arrangement for external combustion engines
EP0335643B1 (en) * 1988-03-28 1992-12-09 Mitsubishi Denki Kabushiki Kaisha Gas refrigerator
DE3936914C2 (en) * 1988-11-09 1996-06-27 Mitsubishi Electric Corp Multi-stage gas refrigerator
US5092130A (en) * 1988-11-09 1992-03-03 Mitsubishi Denki Kabushiki Kaisha Multi-stage cold accumulation type refrigerator and cooling device including the same
DE19502190C2 (en) * 1995-01-25 1998-03-19 Bosch Gmbh Robert Heating and cooling machine
DE10229311A1 (en) * 2002-06-29 2004-01-29 Leybold Vakuum Gmbh Refrigerator with regenerator
US10774820B2 (en) * 2017-11-13 2020-09-15 Caterpillar Inc. Cryogenic pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982088A (en) * 1956-10-09 1961-05-02 Philips Corp Gas leakage prevention means for hot gas reciprocating apparatus
US3145629A (en) * 1960-12-13 1964-08-25 Union Carbide Corp Cryogenic pump sealing rings
NL142220B (en) * 1965-01-20 1974-05-15 Philips Nv HOT GAS VACUUM MACHINE.
US3303658A (en) * 1965-10-23 1967-02-14 Little Inc A Vented seal for air refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124968A1 (en) * 1983-03-15 1984-11-14 Interox Chemicals Limited Peroxygen compounds, a process for their manufacture, and processes and compositions for their use in bleaching, disinfecting, sanitising or washing
GB2195754B (en) * 1986-09-04 1991-03-13 Raytheon Co Seal-less cryogenic expander

Also Published As

Publication number Publication date
JPS4918299B1 (en) 1974-05-09
NL7000001A (en) 1971-07-06
FR2075113A5 (en) 1971-10-08
DE2061073C3 (en) 1980-01-03
DE2061073A1 (en) 1971-07-08
SE359160B (en) 1973-08-20
DE2061073B2 (en) 1979-05-03
CA919927A (en) 1973-01-30
US3688512A (en) 1972-09-05
CH524795A (en) 1972-06-30

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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