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IT977346B - Perfezionamento nelle macchine a vite globoidale per far variare la pressione di un fluido - Google Patents

Perfezionamento nelle macchine a vite globoidale per far variare la pressione di un fluido

Info

Publication number
IT977346B
IT977346B IT4825573A IT4825573A IT977346B IT 977346 B IT977346 B IT 977346B IT 4825573 A IT4825573 A IT 4825573A IT 4825573 A IT4825573 A IT 4825573A IT 977346 B IT977346 B IT 977346B
Authority
IT
Italy
Prior art keywords
improvement
fluid
change
pressure
screw machines
Prior art date
Application number
IT4825573A
Other languages
English (en)
Original Assignee
Omphale Sa
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 Omphale Sa filed Critical Omphale Sa
Application granted granted Critical
Publication of IT977346B publication Critical patent/IT977346B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/16—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Motors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
IT4825573A 1972-03-22 1973-02-14 Perfezionamento nelle macchine a vite globoidale per far variare la pressione di un fluido IT977346B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7209954A FR2177171A5 (it) 1972-03-22 1972-03-22

Publications (1)

Publication Number Publication Date
IT977346B true IT977346B (it) 1974-09-10

Family

ID=9095607

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4825573A IT977346B (it) 1972-03-22 1973-02-14 Perfezionamento nelle macchine a vite globoidale per far variare la pressione di un fluido

Country Status (4)

Country Link
JP (1) JPS496504A (it)
DE (1) DE2309796A1 (it)
FR (1) FR2177171A5 (it)
IT (1) IT977346B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177338C (nl) * 1975-01-31 1985-09-02 Grasso Koninkl Maschf Roterende verdringingscompressor.
GB1555329A (en) * 1975-08-21 1979-11-07 Hall Thermotank Prod Ltd Rotary fluid machines
SE432465B (sv) * 1980-06-02 1984-04-02 Sullair Tech Ab Ventilarrangemang for kapacitetsreglering av skruvkompressorer
FR2526880B1 (fr) * 1982-05-13 1986-07-11 Zimmern Bernard Machine a vis et pignon a taux de compression variable
JPS6140795U (ja) * 1984-08-17 1986-03-14 ソニー株式会社 電子機器の蓋体
JPS6139493U (ja) * 1984-08-17 1986-03-12 株式会社荏原製作所 グラインダ−ポンプ

Also Published As

Publication number Publication date
FR2177171A5 (it) 1973-11-02
JPS496504A (it) 1974-01-21
DE2309796A1 (de) 1973-10-04

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