AT248748B - Vorrichtung zur Erzielen sehr niedriger Drücke - Google Patents

Vorrichtung zur Erzielen sehr niedriger Drücke

Info

Publication number
AT248748B
AT248748B AT115664A AT115664A AT248748B AT 248748 B AT248748 B AT 248748B AT 115664 A AT115664 A AT 115664A AT 115664 A AT115664 A AT 115664A AT 248748 B AT248748 B AT 248748B
Authority
AT
Austria
Prior art keywords
achieving
low pressures
pressures
low
Prior art date
Application number
AT115664A
Other languages
English (en)
Original Assignee
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
Application filed by Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT248748B publication Critical patent/AT248748B/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps
    • F04F9/04—Diffusion pumps in combination with fore pumps, e.g. use of isolating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/06—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means
    • F04B37/08—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
AT115664A 1963-02-15 1964-02-12 Vorrichtung zur Erzielen sehr niedriger Drücke AT248748B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL289046 1963-02-15

Publications (1)

Publication Number Publication Date
AT248748B true AT248748B (de) 1966-08-10

Family

ID=19754424

Family Applications (1)

Application Number Title Priority Date Filing Date
AT115664A AT248748B (de) 1963-02-15 1964-02-12 Vorrichtung zur Erzielen sehr niedriger Drücke

Country Status (7)

Country Link
US (1) US3237419A (de)
AT (1) AT248748B (de)
BE (1) BE643867A (de)
CH (1) CH429008A (de)
DK (1) DK108158C (de)
GB (1) GB1052793A (de)
NL (1) NL289046A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721101A (en) * 1971-01-28 1973-03-20 Cryogenic Technology Inc Method and apparatus for cooling a load
US4068495A (en) * 1976-03-31 1978-01-17 The United States Of America As Represented By The United States National Aeronautics And Space Administration Closed loop spray cooling apparatus
GB2043862B (en) * 1979-03-12 1983-08-17 J B Gray Method of and apparatus for cooling blocks of hot porous material e g bread
FR2572794B1 (fr) * 1984-11-06 1987-06-12 Commissariat Energie Atomique Procede pour augmenter la capacite d'absorption d'une pompe de cryopompage et pompe de cryopompage associee
NZ224759A (en) * 1988-05-23 1991-09-25 John Bowen Gray Cooling bread by injecting air under pressure
DE102014212644A1 (de) * 2014-06-30 2015-12-31 Oerlikon Leybold Vacuum Gmbh Diffusionspumpe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1246817A (en) * 1914-09-05 1917-11-13 Charles Colcock Jones Vacuum refrigerating system.
US1890655A (en) * 1927-02-14 1932-12-13 William C O'leary Vacuum wall receptacle
US2527747A (en) * 1946-01-03 1950-10-31 Margaret N Lewis Apparatus for coating articles by thermal evaporation
US2564100A (en) * 1947-08-07 1951-08-14 Hartford Nat Bank & Trust Co Hot gas apparatus including a regenerator
US2565722A (en) * 1948-09-17 1951-08-28 Westinghouse Electric Corp Cooling device
US2969092A (en) * 1955-10-21 1961-01-24 Herrick L Johnston Inc Method and apparatus for containing a liquified gas
US3103108A (en) * 1961-07-17 1963-09-10 Gen Electric Shielded thermal gradient member
US3111074A (en) * 1961-10-05 1963-11-19 Jr Dwight C Kennard Evacuation chamber
US3122896A (en) * 1962-10-31 1964-03-03 Cryovac Inc Pump heat radiation shield

Also Published As

Publication number Publication date
GB1052793A (de)
NL289046A (de)
DK108158C (da) 1967-09-25
US3237419A (en) 1966-03-01
BE643867A (de) 1964-08-14
CH429008A (de) 1967-01-31

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