IT1091852B - Pompa a vuoto a tenuta d'olio - Google Patents

Pompa a vuoto a tenuta d'olio

Info

Publication number
IT1091852B
IT1091852B IT19043/78A IT1904378A IT1091852B IT 1091852 B IT1091852 B IT 1091852B IT 19043/78 A IT19043/78 A IT 19043/78A IT 1904378 A IT1904378 A IT 1904378A IT 1091852 B IT1091852 B IT 1091852B
Authority
IT
Italy
Prior art keywords
vacuum pump
oil seal
seal
oil
vacuum
Prior art date
Application number
IT19043/78A
Other languages
English (en)
Other versions
IT7819043A0 (it
Original Assignee
Leybold Heraeus Sogev
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 Leybold Heraeus Sogev filed Critical Leybold Heraeus Sogev
Publication of IT7819043A0 publication Critical patent/IT7819043A0/it
Application granted granted Critical
Publication of IT1091852B publication Critical patent/IT1091852B/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
IT19043/78A 1977-03-08 1978-01-05 Pompa a vuoto a tenuta d'olio IT1091852B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7707036A FR2383335A1 (fr) 1977-03-08 1977-03-08 Pompe mecanique a joint d'huile

Publications (2)

Publication Number Publication Date
IT7819043A0 IT7819043A0 (it) 1978-01-05
IT1091852B true IT1091852B (it) 1985-07-06

Family

ID=9187851

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19043/78A IT1091852B (it) 1977-03-08 1978-01-05 Pompa a vuoto a tenuta d'olio

Country Status (4)

Country Link
DE (1) DE2755328A1 (it)
FR (1) FR2383335A1 (it)
GB (1) GB1556643A (it)
IT (1) IT1091852B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904686A1 (de) * 1979-02-08 1980-08-14 Volkswagenwerk Ag Oelgeschmierte vakuumpumpe mit einem im bereich ihrer ansaugoeffnung angeordneten oelabscheider
DE3150033A1 (de) * 1981-12-17 1983-07-14 Leybold-Heraeus GmbH, 5000 Köln Vakuumpumpe mit einem saugstutzen-ventil und betriebsverfahren dafuer
DE3336128A1 (de) * 1982-10-08 1984-04-12 Barmag Barmer Maschf Vakuumpumpe
IT1174249B (it) * 1984-07-05 1987-07-01 Gnutti Carlo & Figli Spa Off Gruppo compressore per la produzione di aria compressa
JPS6412092A (en) * 1987-07-01 1989-01-17 Kobe Steel Ltd Vacuum pump of screw type
DE4208194A1 (de) * 1992-03-14 1993-09-16 Leybold Ag Verfahren zum betrieb einer oelgedichteten vakuumpumpe sowie fuer die durchfuehrung dieses verfahrens geeignete vakuumpumpe
CN100387847C (zh) * 2003-12-12 2008-05-14 乐金电子(天津)电器有限公司 涡旋式压缩机的气体逆流防止装置
DE102005031718A1 (de) 2005-07-07 2007-01-18 Leybold Vacuum Gmbh Vakuum-Drehschieberpumpe
DE202012002881U1 (de) * 2012-03-22 2013-06-25 Oerlikon Leybold Vacuum Gmbh Vakuum-Drehschieberpumpe
DE102013210854A1 (de) * 2013-06-11 2014-12-11 Oerlikon Leybold Vacuum Gmbh Vakuumpumpe sowie Verfahren zum Betreiben einer Vakuumpumpe
JP2018178846A (ja) * 2017-04-12 2018-11-15 株式会社荏原製作所 真空ポンプ装置の運転制御装置、及び運転制御方法
IT201700115881A1 (it) 2017-10-13 2019-04-13 D V P Vacuum Tech S P A Pompa per il vuoto lubrificata

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE567479C (de) * 1933-01-04 Oerlikon Maschf Vakuumabschlussvorrichtung fuer in OEl laufende Drehkolben-Vakuumpumpen
FR1200604A (fr) * 1957-07-24 1959-12-23 Leybolds Nachfolger E Pompe rotative à vide
FR1219478A (fr) * 1958-05-30 1960-05-18 Heraeus Gmbh W C Pompe à vide avec dispositif à ballast gazeux
DE1123076B (de) * 1959-04-18 1962-02-01 Leybolds Nachfolger E Rotierende mechanische Vakuumpumpe
GB1336873A (en) * 1970-01-31 1973-11-14 Gen Eng Radcliffe Vacuum pumps

Also Published As

Publication number Publication date
FR2383335A1 (fr) 1978-10-06
FR2383335B1 (it) 1982-07-09
DE2755328A1 (de) 1978-09-14
IT7819043A0 (it) 1978-01-05
GB1556643A (en) 1979-11-28

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