FR2863322B3 - PUMPING DEVICE COMPRISING MEANS FOR CONTROLLING THE STATUS OF THE SEAL SEALS OF THE ASPIRE VOLUME - Google Patents

PUMPING DEVICE COMPRISING MEANS FOR CONTROLLING THE STATUS OF THE SEAL SEALS OF THE ASPIRE VOLUME

Info

Publication number
FR2863322B3
FR2863322B3 FR0412552A FR0412552A FR2863322B3 FR 2863322 B3 FR2863322 B3 FR 2863322B3 FR 0412552 A FR0412552 A FR 0412552A FR 0412552 A FR0412552 A FR 0412552A FR 2863322 B3 FR2863322 B3 FR 2863322B3
Authority
FR
France
Prior art keywords
aspire
status
volume
controlling
pumping device
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.)
Expired - Lifetime
Application number
FR0412552A
Other languages
French (fr)
Other versions
FR2863322A3 (en
Inventor
Mattew Key
Nicholas Hutton
Frederick John Underwood
Phillip North
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Publication of FR2863322A3 publication Critical patent/FR2863322A3/en
Application granted granted Critical
Publication of FR2863322B3 publication Critical patent/FR2863322B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • 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
    • F04C18/082—Details specially related to intermeshing engagement type pumps
    • F04C18/086—Carter
    • 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
    • F04C18/12—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 other than internal-axis type
    • F04C18/126—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 other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots 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
    • F04C18/08—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
    • F04C18/12—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 other than internal-axis type
    • F04C18/123—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 other than internal-axis type with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth
    • 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
    • F04C18/12—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 other than internal-axis type
    • F04C18/14—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 other than internal-axis type with toothed rotary pistons
    • F04C18/16—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 other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • F04C2220/12—Dry running

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR0412552A 2003-12-03 2004-11-26 PUMPING DEVICE COMPRISING MEANS FOR CONTROLLING THE STATUS OF THE SEAL SEALS OF THE ASPIRE VOLUME Expired - Lifetime FR2863322B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0327964A GB2408801A (en) 2003-12-03 2003-12-03 Detection of seal leak using differential pressure measurement

Publications (2)

Publication Number Publication Date
FR2863322A3 FR2863322A3 (en) 2005-06-10
FR2863322B3 true FR2863322B3 (en) 2005-12-02

Family

ID=29764459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0412552A Expired - Lifetime FR2863322B3 (en) 2003-12-03 2004-11-26 PUMPING DEVICE COMPRISING MEANS FOR CONTROLLING THE STATUS OF THE SEAL SEALS OF THE ASPIRE VOLUME

Country Status (7)

Country Link
US (1) US20050123414A1 (en)
JP (1) JP3109161U (en)
CN (1) CN2844879Y (en)
DE (1) DE202004018733U1 (en)
FR (1) FR2863322B3 (en)
GB (1) GB2408801A (en)
TW (1) TWM278782U (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI438342B (en) * 2006-07-28 2014-05-21 Lot Vacuum Co Ltd Complex dry vacuum pump having root and screw rotors
GB2442738B (en) * 2006-10-09 2011-08-03 Boc Group Plc A sealing system
GB0712779D0 (en) * 2007-07-02 2007-08-08 Edwards Ltd Seal
DE102008021971A1 (en) * 2008-05-02 2009-11-05 Oerlikon Leybold Vacuum Gmbh Vacuum pump and method for cleaning vacuum pumps
CN103517763A (en) * 2011-03-15 2014-01-15 卡柯洛塑料技术有限公司 Surface preparation
US8997553B2 (en) * 2011-04-14 2015-04-07 Cincinnati Test Systems, Inc. Leak testing device and method
US10036385B2 (en) 2012-03-02 2018-07-31 Dover Pump Solutions Group (Europe) Gmbh Sealing arrangement, a conveying device having a sealing arrangement and a method for operating the sealing arrangement
CN102606465B (en) * 2012-03-06 2015-01-07 昆山佳铭自动化科技有限公司 Device for detecting comprehensive performances of electronic vacuum pumps
CN102865219B (en) * 2012-10-09 2014-11-12 浙江宇宙智能设备有限公司 Direct-drive high-pressure pumping seal internal-leakage online monitoring method
DE102013208614A1 (en) * 2013-05-10 2014-11-13 Pfeiffer Vacuum Gmbh Device with at least one channel for guiding a gaseous or liquid operating medium
CN103422899B (en) * 2013-08-09 2015-06-03 华南理工大学 Process and device for generating power by pressure energy of small natural gas pipeline network
EP2871363B1 (en) 2013-11-06 2020-10-07 Maag Pump Systems AG Gear pump with a sealing assembly
JP6418838B2 (en) 2014-07-31 2018-11-07 エドワーズ株式会社 Dry pump and exhaust gas treatment method
FR3107575B1 (en) * 2020-02-20 2022-03-25 Pfeiffer Vacuum Tech Ag Dry vacuum pump
CN114593059A (en) * 2020-12-07 2022-06-07 中国科学院沈阳科学仪器股份有限公司 Stator component of dry vacuum pump

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818752A (en) * 1971-04-28 1974-06-25 N Lindeberg Method and apparatus for testing tightness
GB2143596B (en) * 1983-07-19 1986-07-02 Telspec Ltd Improvements in and relating to the sealing of electrical cable joints equipment housings or the like
FR2638788B1 (en) * 1988-11-07 1994-01-28 Alcatel Cit MULTI-STAGE ROOTS TYPE VACUUM PUMP
FR2666440B1 (en) * 1990-08-28 1992-12-11 Framatome Sa METHOD FOR CONTROLLING THE PLACEMENT OF A TRANSPORTABLE ELEMENT AND THE SEALING OF THE CONNECTION WITH A FIXED STRUCTURE AND USE OF THIS METHOD.
CA2161000C (en) * 1993-05-06 2004-12-21 Kenneth John Davey Monitoring apparatus for monitoring impending faults in the integrity of a component or structure
GB9403184D0 (en) * 1994-02-18 1994-04-06 Boc Group Plc Methods and apparatus for leak testing
EP0786655B1 (en) * 1997-05-07 2002-07-24 Martin Lehmann Procedure for leak testing of closed containers, test chamber, device and installation therefor
US6092370A (en) * 1997-09-16 2000-07-25 Flow International Corporation Apparatus and method for diagnosing the status of specific components in high-pressure fluid pumps
JPH11230352A (en) * 1998-02-10 1999-08-27 Nec Corp Sealed container and testing method thereof
US6123526A (en) * 1998-09-18 2000-09-26 Industrial Technology Research Institute Multistage pump and method for assembling the pump
US6301319B1 (en) * 1998-09-30 2001-10-09 Westinghouse Electric Company Llc Method of sealing a reactor pressure vessel
AUPQ726600A0 (en) * 2000-05-03 2000-05-25 Structural Monitoring Systems Ltd System and method for continuous monitoring of the structural integrity of a component or structure
AUPQ823500A0 (en) * 2000-06-19 2000-07-13 Structural Monitoring Systems Ltd Apparatus for condition monitoring the integrity of fasteners and fastened joints
AUPR001800A0 (en) * 2000-09-08 2000-10-05 Structural Monitoring Systems Ltd Method and apparatus for monitoring the integrity of structures
FR2813104B1 (en) * 2000-08-21 2002-11-29 Cit Alcatel SEAL FOR VACUUM PUMP
US7241115B2 (en) * 2002-03-01 2007-07-10 Waters Investments Limited Methods and apparatus for determining the presence or absence of a fluid leak
US6817228B2 (en) * 2002-04-01 2004-11-16 Schlumberger Technology Corporation Method and apparatus for detecting seal failure
GB0310615D0 (en) * 2003-05-08 2003-06-11 Boc Group Plc Improvements in seal assemblies

Also Published As

Publication number Publication date
TWM278782U (en) 2005-10-21
CN2844879Y (en) 2006-12-06
FR2863322A3 (en) 2005-06-10
GB2408801A (en) 2005-06-08
JP3109161U (en) 2005-05-12
DE202004018733U1 (en) 2005-04-14
GB0327964D0 (en) 2004-01-07
US20050123414A1 (en) 2005-06-09

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