FR2238069A1 - - Google Patents

Info

Publication number
FR2238069A1
FR2238069A1 FR7425149A FR7425149A FR2238069A1 FR 2238069 A1 FR2238069 A1 FR 2238069A1 FR 7425149 A FR7425149 A FR 7425149A FR 7425149 A FR7425149 A FR 7425149A FR 2238069 A1 FR2238069 A1 FR 2238069A1
Authority
FR
France
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.)
Granted
Application number
FR7425149A
Other versions
FR2238069B1 (fr
Inventor
H K Olofsson
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of FR2238069A1 publication Critical patent/FR2238069A1/fr
Application granted granted Critical
Publication of FR2238069B1 publication Critical patent/FR2238069B1/fr
Expired legal-status Critical Current

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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/10—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member
    • F04C18/107—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C18/1075—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic material, e.g. Moineau type
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)
FR7425149A 1973-07-20 1974-07-19 Expired FR2238069B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7310168A SE378885B (fr) 1973-07-20 1973-07-20

Publications (2)

Publication Number Publication Date
FR2238069A1 true FR2238069A1 (fr) 1975-02-14
FR2238069B1 FR2238069B1 (fr) 1977-10-07

Family

ID=20318111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425149A Expired FR2238069B1 (fr) 1973-07-20 1974-07-19

Country Status (9)

Country Link
US (1) US3941520A (fr)
JP (1) JPS5049713A (fr)
BE (1) BE817770A (fr)
CA (1) CA1024486A (fr)
DE (1) DE2434783A1 (fr)
FR (1) FR2238069B1 (fr)
GB (1) GB1441218A (fr)
IT (1) IT1016442B (fr)
SE (1) SE378885B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223335A2 (fr) * 1985-08-24 1987-05-27 Weir Pumps Limited Machines rotatives fluidiques à déplacement positif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424713U (fr) * 1977-07-22 1979-02-17
BE1016581A3 (nl) * 2005-02-22 2007-02-06 Atlas Copco Airpower Nv Verbeterd watergeinjecteerd schroefcompressorelement.
US11136978B2 (en) 2016-09-16 2021-10-05 Vilter Manufacturing Llc High suction pressure single screw compressor with thrust balancing load using shaft seal pressure and related methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB427475A (en) * 1933-10-13 1935-04-15 Arthur William Capps Improvements relating to rotary compressors, engines and heating and cooling apparatus
US2290137A (en) * 1938-10-22 1942-07-14 Roy G Dorrance Compressor for refrigerating apparatus
US2358721A (en) * 1940-05-22 1944-09-19 Ljungdahl Oskar Birger Pump, compressor, motor, or the like
US2695694A (en) * 1951-11-03 1954-11-30 Seinfeld Emmy Margaret Diaphragm mechanism for pump clutches
FR1369351A (fr) * 1963-03-21 1964-08-14 Renault Perfectionnements au graissage des segments radiaux de moteurs rotatifs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223335A2 (fr) * 1985-08-24 1987-05-27 Weir Pumps Limited Machines rotatives fluidiques à déplacement positif
EP0223335A3 (fr) * 1985-08-24 1987-09-23 Weir Pumps Limited Machines rotatives fluidiques à déplacement positif

Also Published As

Publication number Publication date
IT1016442B (it) 1977-05-30
CA1024486A (fr) 1978-01-17
SE7310168L (fr) 1975-01-21
US3941520A (en) 1976-03-02
JPS5049713A (fr) 1975-05-02
GB1441218A (en) 1976-06-30
SE378885B (fr) 1975-09-15
FR2238069B1 (fr) 1977-10-07
BE817770A (fr) 1974-11-18
DE2434783A1 (de) 1975-02-06

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Legal Events

Date Code Title Description
ST Notification of lapse