ES307421A1 - Device including at least one cylinder with a piston-shaped body which is movable therein - Google Patents

Device including at least one cylinder with a piston-shaped body which is movable therein

Info

Publication number
ES307421A1
ES307421A1 ES0307421A ES307421A ES307421A1 ES 307421 A1 ES307421 A1 ES 307421A1 ES 0307421 A ES0307421 A ES 0307421A ES 307421 A ES307421 A ES 307421A ES 307421 A1 ES307421 A1 ES 307421A1
Authority
ES
Spain
Prior art keywords
piston
cylinder
gap
refrigerator
frusto
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
ES0307421A
Other languages
Spanish (es)
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 ES307421A1 publication Critical patent/ES307421A1/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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
    • 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
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

In an expansion engine, compressor or coldgas refrigerator having a piston 2 reciprocable in a cylinder 1 to vary the volume of a working space 4, the width of the annular gap 8 between the upper portion 6 of the piston and the cylinder increases in a direction away from the working space. A seal 7 is provided between the lower portion 5 of the piston and the cylinder. A centring ring 10 having circumferentially spaced apertures 11 is provided in the upper end of the gap. The piston may be used as the displacer of either an otherwise conventional cold-gas refrigerator (Fig. 6, not shown), or a refrigerator in which the frusto-conical part of the piston is filled with regenerative material (Fig. 7, not shown), and has an upper, constantdiameter extension. In further modifications, the gap may increase in a step-wise manner (Fig. 2, not shown), the walls of the cylinder may be downwardly divergent over part of their length and the piston of constant diameter (Fig. 3, not shown), or the walls of the frusto-conical part of the piston may be curved. Preferred dimensions and operating conditions and a preferred relationship between gap width and the thermal conductivity of the working medium are given.
ES0307421A 1963-12-24 1964-12-22 Device including at least one cylinder with a piston-shaped body which is movable therein Expired ES307421A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL302577 1963-12-24

Publications (1)

Publication Number Publication Date
ES307421A1 true ES307421A1 (en) 1965-06-01

Family

ID=19755329

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0307421A Expired ES307421A1 (en) 1963-12-24 1964-12-22 Device including at least one cylinder with a piston-shaped body which is movable therein

Country Status (10)

Country Link
US (1) US3292501A (en)
AT (1) AT256149B (en)
BE (1) BE657475A (en)
CH (1) CH441398A (en)
DE (1) DE1228636B (en)
DK (1) DK117432B (en)
ES (1) ES307421A1 (en)
GB (1) GB1081700A (en)
NL (1) NL302577A (en)
SE (1) SE302308B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6515725A (en) * 1965-12-05 1967-06-05
US3650118A (en) * 1969-10-20 1972-03-21 Cryogenic Technology Inc Temperature-staged cryogenic apparatus
US3971230A (en) * 1975-05-05 1976-07-27 Nasa Stirling cycle engine and refrigeration systems
US4726571A (en) * 1986-03-17 1988-02-23 Lear Siegler, Inc. Height control valve with spring return actuator
FR2611031B1 (en) * 1987-02-16 1989-05-05 Commissariat Energie Atomique REFRIGERATOR, ESPECIALLY WITH A VUILLEUMIER CYCLE, COMPRISING PISTONS SUSPENDED BY GAS BEARINGS
US5012650A (en) * 1989-10-11 1991-05-07 Apd Cryogenics, Inc. Cryogen thermal storage matrix
JP2659684B2 (en) * 1994-05-31 1997-09-30 住友重機械工業株式会社 Regenerator refrigerator
JP2780928B2 (en) * 1994-06-16 1998-07-30 住友重機械工業株式会社 Low-temperature device using regenerator refrigerator and cooling method
DE19547030A1 (en) * 1995-12-15 1997-06-19 Leybold Ag Low-temperature refrigerator with a cold head and process for optimizing the cold head for a desired temperature range
US7028473B2 (en) * 2001-12-31 2006-04-18 Wilhelm Servis Hot-gas engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1012725A (en) * 1908-08-24 1911-12-26 Frederick L Horneffer Motor and compressor.
US1467489A (en) * 1918-08-12 1923-09-11 Bruno V Nordberg Compressor
US1531709A (en) * 1922-03-30 1925-03-31 Automatic Refrigerating Compan Air-refrigerating machine
US1508522A (en) * 1923-11-21 1924-09-16 Automatic Refrigerating Compan Refrigerating machine
US1678957A (en) * 1925-01-29 1928-07-31 Busch Sulzer Bros Diesel Engine Co Piston cooling
US2616242A (en) * 1947-02-15 1952-11-04 Hartford Nat Bank & Trust Co Hot-gas piston engine cylinder and mounting plate assembly
NL82195C (en) * 1953-11-05
US2963871A (en) * 1958-02-28 1960-12-13 Philips Corp Thermo-dynamic reciprocating apparatus
GB1050270A (en) * 1963-11-12

Also Published As

Publication number Publication date
US3292501A (en) 1966-12-20
SE302308B (en) 1968-07-15
AT256149B (en) 1967-08-10
NL302577A (en)
BE657475A (en)
CH441398A (en) 1967-08-15
GB1081700A (en) 1967-08-31
DE1228636B (en) 1966-11-17
DK117432B (en) 1970-04-27

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