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 VOLUMEInfo
- 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
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)
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)
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 |
CA2830015A1 (en) * | 2011-03-15 | 2012-09-20 | Carclo Technical Plastics Limited | Capillary fluid flow control |
WO2012142402A1 (en) * | 2011-04-14 | 2012-10-18 | Cincinnati Test Systems, Inc. | Leak testing device and method |
EP2820247B1 (en) * | 2012-03-02 | 2021-02-17 | Maag Pump Systems AG | 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 Technology 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)
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. |
JP3236939B2 (en) * | 1993-05-06 | 2001-12-10 | ストラクチュラル モニタリング システムズ リミテッド | Monitor device |
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 |
-
2003
- 2003-12-03 GB GB0327964A patent/GB2408801A/en not_active Withdrawn
-
2004
- 2004-11-26 FR FR0412552A patent/FR2863322B3/en not_active Expired - Lifetime
- 2004-12-02 JP JP2004007099U patent/JP3109161U/en not_active Expired - Lifetime
- 2004-12-03 US US11/004,259 patent/US20050123414A1/en not_active Abandoned
- 2004-12-03 TW TW093219592U patent/TWM278782U/en not_active IP Right Cessation
- 2004-12-03 DE DE202004018733U patent/DE202004018733U1/en not_active Expired - Lifetime
- 2004-12-03 CN CNU2004201174498U patent/CN2844879Y/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20050123414A1 (en) | 2005-06-09 |
JP3109161U (en) | 2005-05-12 |
DE202004018733U1 (en) | 2005-04-14 |
GB0327964D0 (en) | 2004-01-07 |
TWM278782U (en) | 2005-10-21 |
GB2408801A (en) | 2005-06-08 |
FR2863322A3 (en) | 2005-06-10 |
CN2844879Y (en) | 2006-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |