IT1091852B - VACUUM PUMP WITH OIL SEAL - Google Patents

VACUUM PUMP WITH OIL SEAL

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
Italian (it)
Other versions
IT7819043A0 (en
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/en
Application granted granted Critical
Publication of IT1091852B publication Critical patent/IT1091852B/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
    • 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 VACUUM PUMP WITH OIL SEAL IT1091852B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7707036A FR2383335A1 (en) 1977-03-08 1977-03-08 MECHANICAL PUMP WITH OIL SEAL

Publications (2)

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

Family

ID=9187851

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19043/78A IT1091852B (en) 1977-03-08 1978-01-05 VACUUM PUMP WITH OIL SEAL

Country Status (4)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904686A1 (en) * 1979-02-08 1980-08-14 Volkswagenwerk Ag OIL LUBRICATED VACUUM PUMP WITH AN OIL SEPARATOR ARRANGED IN THE AREA OF YOUR SUCTION OPENING
DE3150033A1 (en) * 1981-12-17 1983-07-14 Leybold-Heraeus GmbH, 5000 Köln VACUUM PUMP WITH A SUCTION VALVE AND OPERATING PROCEDURE THEREFOR
DE3336128A1 (en) * 1982-10-08 1984-04-12 Barmag Barmer Maschf Vacuum pump
IT1174249B (en) * 1984-07-05 1987-07-01 Gnutti Carlo & Figli Spa Off COMPRESSOR GROUP FOR THE PRODUCTION OF COMPRESSED AIR
JPS6412092A (en) * 1987-07-01 1989-01-17 Kobe Steel Ltd Vacuum pump of screw type
DE4208194A1 (en) * 1992-03-14 1993-09-16 Leybold Ag METHOD FOR OPERATING AN OIL-SEALED VACUUM PUMP AND A VACUUM PUMP SUITABLE FOR IMPLEMENTING THIS METHOD
CN100387847C (en) * 2003-12-12 2008-05-14 乐金电子(天津)电器有限公司 Device for preventing counter flow of gas in vortex type compressor
DE102005031718A1 (en) * 2005-07-07 2007-01-18 Leybold Vacuum Gmbh Rotary vacuum pump
DE202012002881U1 (en) * 2012-03-22 2013-06-25 Oerlikon Leybold Vacuum Gmbh Rotary vacuum pump
DE102013210854A1 (en) * 2013-06-11 2014-12-11 Oerlikon Leybold Vacuum Gmbh Vacuum pump and method for operating a vacuum pump
JP2018178846A (en) * 2017-04-12 2018-11-15 株式会社荏原製作所 Device and method for controlling operation of vacuum pump device
IT201700115881A1 (en) 2017-10-13 2019-04-13 D V P Vacuum Tech S P A PUMP FOR LUBRICATED VACUUM

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE567479C (en) * 1933-01-04 Oerlikon Maschf Vacuum closing device for rotary piston vacuum pumps running in OEl
FR1200604A (en) * 1957-07-24 1959-12-23 Leybolds Nachfolger E Rotary vacuum pump
FR1219478A (en) * 1958-05-30 1960-05-18 Heraeus Gmbh W C Vacuum pump with gas ballast device
DE1123076B (en) * 1959-04-18 1962-02-01 Leybolds Nachfolger E Rotating mechanical vacuum pump
GB1336873A (en) * 1970-01-31 1973-11-14 Gen Eng Radcliffe Vacuum pumps

Also Published As

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

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