EP0406873A3 - Vacuum pump with security against aeration of recipient at stoppage - Google Patents

Vacuum pump with security against aeration of recipient at stoppage Download PDF

Info

Publication number
EP0406873A3
EP0406873A3 EP19900112881 EP90112881A EP0406873A3 EP 0406873 A3 EP0406873 A3 EP 0406873A3 EP 19900112881 EP19900112881 EP 19900112881 EP 90112881 A EP90112881 A EP 90112881A EP 0406873 A3 EP0406873 A3 EP 0406873A3
Authority
EP
European Patent Office
Prior art keywords
stoppage
recipient
vacuum pump
security against
against aeration
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.)
Withdrawn
Application number
EP19900112881
Other languages
German (de)
English (en)
Other versions
EP0406873A2 (fr
Inventor
Rudolf Dr. Lachenmann
Gerhard Ruester
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.)
Vacuubrand GmbH and Co KG
Original Assignee
Vacuubrand GmbH and Co KG
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 Vacuubrand GmbH and Co KG filed Critical Vacuubrand GmbH and Co KG
Publication of EP0406873A2 publication Critical patent/EP0406873A2/fr
Publication of EP0406873A3 publication Critical patent/EP0406873A3/de
Withdrawn legal-status Critical Current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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
EP19900112881 1989-07-07 1990-07-05 Vacuum pump with security against aeration of recipient at stoppage Withdrawn EP0406873A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893922417 DE3922417A1 (de) 1989-07-07 1989-07-07 Vakuumpumpe mit sicherung gegen belueftung des rezipienten bei stillstand
DE3922417 1989-07-07

Publications (2)

Publication Number Publication Date
EP0406873A2 EP0406873A2 (fr) 1991-01-09
EP0406873A3 true EP0406873A3 (en) 1991-11-27

Family

ID=6384524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900112881 Withdrawn EP0406873A3 (en) 1989-07-07 1990-07-05 Vacuum pump with security against aeration of recipient at stoppage

Country Status (2)

Country Link
EP (1) EP0406873A3 (fr)
DE (1) DE3922417A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325281A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Vakuumpumpe mit einer Gasballasteinrichtung
DE19526321A1 (de) * 1995-07-19 1997-01-23 Leybold Ag Ölgedichtete Drehschiebervakuumpumpe mit Ölpumpe
DE19526303A1 (de) * 1995-07-19 1997-01-23 Leybold Ag Ölgedichtete Drehschiebervakuumpumpe mit einer Ölversorgung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190134B (de) * 1957-02-07 1965-04-01 Edwards High Vacuum Ltd Drehkolben-Vakuumpumpe mit oelueberlagertem Auspuffventil
DE1703592A1 (de) * 1968-06-14 1971-11-18 Leybold Heraeus Gmbh & Co Kg Vakuum-Drehschieberpumpe
DE3518016A1 (de) * 1984-10-02 1986-04-03 Veb Kombinat Medizin- Und Labortechnik Leipzig, Ddr 7033 Leipzig Einstellvorrichtung fuer eine oelpumpe zur druckoelschmierung von rotierenden vakuumpumpen
DE3730685A1 (de) * 1986-12-30 1988-07-14 Medizin Labortechnik Veb K Druckoelschmierung fuer drehschieber-vakuumpumpen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190134B (de) * 1957-02-07 1965-04-01 Edwards High Vacuum Ltd Drehkolben-Vakuumpumpe mit oelueberlagertem Auspuffventil
DE1703592A1 (de) * 1968-06-14 1971-11-18 Leybold Heraeus Gmbh & Co Kg Vakuum-Drehschieberpumpe
DE3518016A1 (de) * 1984-10-02 1986-04-03 Veb Kombinat Medizin- Und Labortechnik Leipzig, Ddr 7033 Leipzig Einstellvorrichtung fuer eine oelpumpe zur druckoelschmierung von rotierenden vakuumpumpen
DE3730685A1 (de) * 1986-12-30 1988-07-14 Medizin Labortechnik Veb K Druckoelschmierung fuer drehschieber-vakuumpumpen

Also Published As

Publication number Publication date
DE3922417A1 (de) 1991-01-17
DE3922417C2 (fr) 1991-08-29
EP0406873A2 (fr) 1991-01-09

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