WO2009124845A3 - Fluid-sealed or fluid-lubricated vacuum pump - Google Patents

Fluid-sealed or fluid-lubricated vacuum pump Download PDF

Info

Publication number
WO2009124845A3
WO2009124845A3 PCT/EP2009/053591 EP2009053591W WO2009124845A3 WO 2009124845 A3 WO2009124845 A3 WO 2009124845A3 EP 2009053591 W EP2009053591 W EP 2009053591W WO 2009124845 A3 WO2009124845 A3 WO 2009124845A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
vacuum pump
valve
sealed
actuated
Prior art date
Application number
PCT/EP2009/053591
Other languages
German (de)
French (fr)
Other versions
WO2009124845A2 (en
Inventor
Hans-Rochus Gross
Magnus Janicki
Ulrich Luckhardt
Original Assignee
Oerlikon Leybold Vacuum Gmbh
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 Oerlikon Leybold Vacuum Gmbh filed Critical Oerlikon Leybold Vacuum Gmbh
Publication of WO2009124845A2 publication Critical patent/WO2009124845A2/en
Publication of WO2009124845A3 publication Critical patent/WO2009124845A3/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
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/19—Temperature
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/701—Cold start

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention relates to a fluid-sealed or fluid-lubricated vacuum pump (10) having a pumping path (30) that runs through the vacuum pump (10) and containing an auxiliary fluid (20) for sealing or lubricating the vacuum pump (10). To improve the start behaviour of said pump and to reduce the energy consumption, a valve (100), which is actuated by an expansion material element (120), is provided, said element (120) being located in such a way that the valve (100) is actuated when the temperature of the expansion material sinks below a predetermined value. The valve (100) is arranged in such a way that once said valve is actuated below the predetermined value, the drive torque of the pump (10) is reduced.
PCT/EP2009/053591 2008-04-09 2009-03-26 Fluid-sealed or fluid-lubricated vacuum pump WO2009124845A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008017955.8 2008-04-09
DE200810017955 DE102008017955A1 (en) 2008-04-09 2008-04-09 Fluid sealed or fluid lubricated vacuum pump

Publications (2)

Publication Number Publication Date
WO2009124845A2 WO2009124845A2 (en) 2009-10-15
WO2009124845A3 true WO2009124845A3 (en) 2009-12-23

Family

ID=41060470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/053591 WO2009124845A2 (en) 2008-04-09 2009-03-26 Fluid-sealed or fluid-lubricated vacuum pump

Country Status (2)

Country Link
DE (1) DE102008017955A1 (en)
WO (1) WO2009124845A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954784A (en) * 1982-09-21 1984-03-29 Matsushita Electric Ind Co Ltd Compressor
JPS6485588A (en) * 1987-09-25 1989-03-30 Mitsubishi Electric Corp Low-temperature starting equipment for oil-sealed rotary vacuum pump motor
US20040228751A1 (en) * 2003-05-12 2004-11-18 Dong-Koo Shin Apparatus for preventing overheat of scroll compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303430A (en) * 1969-06-12 1973-01-17
DD223329A3 (en) * 1983-01-28 1985-06-05 Medizin Labortechnik Veb K PRESSURE OIL LUBRICATION FOR ROTATING VACUUM PUMPS
DE4243793A1 (en) * 1992-12-23 1994-06-30 Zwetko Zwetkow Stage lubrication for multistage vacuum pumps
DE4325282A1 (en) * 1993-07-28 1995-02-02 Leybold Ag Vacuum pump with auxiliary device
DE4443387C1 (en) * 1994-12-06 1996-01-18 Saskia Hochvakuum Und Labortec Twin=step mechanical vacuum pump assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954784A (en) * 1982-09-21 1984-03-29 Matsushita Electric Ind Co Ltd Compressor
JPS6485588A (en) * 1987-09-25 1989-03-30 Mitsubishi Electric Corp Low-temperature starting equipment for oil-sealed rotary vacuum pump motor
US20040228751A1 (en) * 2003-05-12 2004-11-18 Dong-Koo Shin Apparatus for preventing overheat of scroll compressor

Also Published As

Publication number Publication date
WO2009124845A2 (en) 2009-10-15
DE102008017955A1 (en) 2009-10-15

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