IT977346B - IMPROVEMENT IN GLOBOIDAL SCREW MACHINES TO CHANGE THE PRESSURE OF A FLUID - Google Patents

IMPROVEMENT IN GLOBOIDAL SCREW MACHINES TO CHANGE THE PRESSURE OF A FLUID

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
Italian (it)
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/en

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)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Hydraulic Motors (AREA)
IT4825573A 1972-03-22 1973-02-14 IMPROVEMENT IN GLOBOIDAL SCREW MACHINES TO CHANGE THE PRESSURE OF A FLUID IT977346B (en)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=9095607

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4825573A IT977346B (en) 1972-03-22 1973-02-14 IMPROVEMENT IN GLOBOIDAL SCREW MACHINES TO CHANGE THE PRESSURE OF A FLUID

Country Status (4)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177338C (en) * 1975-01-31 1985-09-02 Grasso Koninkl Maschf ROTARY Displacement Compressor.
GB1555329A (en) * 1975-08-21 1979-11-07 Hall Thermotank Prod Ltd Rotary fluid machines
FR2459384A1 (en) 1979-06-18 1981-01-09 Zimmern Bernard METHOD FOR ASYMMETRICALLY REGULATING MONOVIS COMPRESSORS
SE432465B (en) * 1980-06-02 1984-04-02 Sullair Tech Ab VALVE ARRANGEMENTS FOR CAPACITY CONTROL OF SCREW COMPRESSORS
FR2526880B1 (en) * 1982-05-13 1986-07-11 Zimmern Bernard SCREW AND PINION MACHINE WITH VARIABLE COMPRESSION RATE
JPS6140795U (en) * 1984-08-17 1986-03-14 ソニー株式会社 Electronic device lids
JPS6139493U (en) * 1984-08-17 1986-03-12 株式会社荏原製作所 grinder pump

Also Published As

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

Similar Documents

Publication Publication Date Title
IT976813B (en) IMPROVEMENT IN SEALING PROVISIONS FOR FLUIDS
IT960700B (en) SAFETY BOTTLE INTENDED TO CONTAIN A FLUID UNDER PRESSURE
IT977128B (en) IMPROVEMENT IN THE MACHINES FOR THE FORMATION OF GEARS
IT965090B (en) IMPROVEMENT IN GLOBOID SCREW MACHINES WITH FLUID CIRCULATION
IT997943B (en) IMPROVEMENT OF THE SEALING PROVISIONS IN PARTICULAR FOR ROTARY-TYPE FLUID MACHINES
IT991707B (en) SAFETY DEVICE INTENDED TO LIMIT THE PRESSURE OF A FLUI DO
IT1006974B (en) FLUID MACHINE IMPELLER
IT985498B (en) IMPROVEMENT IN FLUID DELIVERY CONTROL VALVE ARRANGEMENTS
IT979842B (en) IMPROVEMENT IN VANES FOR AXIAL COMPRESSORS FOR FLUID MACHINES
BE801183A (en) PRESSURE FLUID MACHINE
IT986142B (en) IMPROVEMENT IN PUMPS FOR HYDRAULIC SERVO SYSTEMS
FR2279945A1 (en) FLUID PRESSURE ROTATING MACHINE
IT977346B (en) IMPROVEMENT IN GLOBOIDAL SCREW MACHINES TO CHANGE THE PRESSURE OF A FLUID
IT1011030B (en) GREASING MACHINE ABLE TO WORK AS A PUMP OR ENT
ZA735078B (en) Displacement machine such as a pump
IT965380B (en) FLUID PRESSURE CONNECTION
IT1004689B (en) FLUID PRESSURE MACHINE
BE758736A (en) PRESSURE FLUID MOTOR
IT954721B (en) POLI-STAGE MACHINE WITH HELICAL ROTORS FOR THE COMPRESSION AND EXPANSION OF A WORKING FLUID
IT950864B (en) IMPROVEMENTS RELATING TO ROTARY SHAFT OPERATED BY FLUID PRESSURE
IT979824B (en) IMPROVEMENT IN HIGH PRESSURE PUMPS
BE758504A (en) ELASTIC PRESSURE FLUID MOTOR
IT1016702B (en) MULTIFUNCTIONAL FLUID PRESSURE DISTRIBUTOR FOR INDUSTRIAL APPLICATIONS
IT1013423B (en) IMPROVEMENT IN PRESSURE RE-GULATION VALVES
BE809384A (en) PRESSURE FLUID OSCILLATOR