EP0972938A3 - Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages - Google Patents
Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages Download PDFInfo
- Publication number
- EP0972938A3 EP0972938A3 EP99112217A EP99112217A EP0972938A3 EP 0972938 A3 EP0972938 A3 EP 0972938A3 EP 99112217 A EP99112217 A EP 99112217A EP 99112217 A EP99112217 A EP 99112217A EP 0972938 A3 EP0972938 A3 EP 0972938A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas ballast
- displacement pump
- positive displacement
- ballast device
- multistage positive
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title abstract 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
- F04B25/005—Multi-stage pumps with two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
- F04B37/20—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids for wet gases, e.g. wet air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/06—Pressure in a (hydraulic) circuit
- F04B2205/061—Pressure in a (hydraulic) circuit after a throttle
-
- 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
- F04C2220/50—Pumps with means for introducing gas under pressure for ballasting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19831123 | 1998-07-11 | ||
DE19831123A DE19831123A1 (de) | 1998-07-11 | 1998-07-11 | Gasballasteinrichtung für mehrstufige Verdrängerpumpen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0972938A2 EP0972938A2 (fr) | 2000-01-19 |
EP0972938A3 true EP0972938A3 (fr) | 2000-06-28 |
EP0972938B1 EP0972938B1 (fr) | 2004-03-03 |
Family
ID=7873738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99112217A Expired - Lifetime EP0972938B1 (fr) | 1998-07-11 | 1999-06-25 | Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages |
Country Status (5)
Country | Link |
---|---|
US (1) | US6071085A (fr) |
EP (1) | EP0972938B1 (fr) |
JP (1) | JP4159183B2 (fr) |
AT (1) | ATE261063T1 (fr) |
DE (2) | DE19831123A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9921983D0 (en) * | 1999-09-16 | 1999-11-17 | Boc Group Plc | Improvements in vacuum pumps |
DE10021454C2 (de) | 2000-05-03 | 2002-03-14 | Knf Neuberger Gmbh | Vorrichtung zum Fördern feuchter Gase |
DE10255792C5 (de) * | 2002-11-28 | 2008-12-18 | Vacuubrand Gmbh + Co Kg | Verfahren zur Steuerung einer Vakuumpumpe sowie Vakuumpumpensystem |
US7329105B2 (en) * | 2003-12-03 | 2008-02-12 | Haldex Brake Corporation | Multi-directional pump |
US7399345B2 (en) * | 2006-05-09 | 2008-07-15 | Rheodyne Llc | Capillary flow restrictor apparatus |
US20080063551A1 (en) * | 2006-09-13 | 2008-03-13 | R. Conrader Company | Head Discharging Compressor System |
JP6150477B2 (ja) * | 2012-08-16 | 2017-06-21 | 株式会社アルバック | 往復動式ポンプ |
KR20170054708A (ko) * | 2015-11-10 | 2017-05-18 | 엘지이노텍 주식회사 | 멀티 코일 무선 충전 방법 및 그를 위한 장치 및 시스템 |
US11873802B2 (en) * | 2020-05-18 | 2024-01-16 | Graco Minnesota Inc. | Pump having multi-stage gas compression |
CN112049769B (zh) * | 2020-08-11 | 2022-09-02 | 珠海格力节能环保制冷技术研究中心有限公司 | 活塞压缩机和制冷设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1253590A (en) * | 1968-10-11 | 1971-11-17 | Balzers Patent Beteilig Ag | Improvements in and relating to vacuum pumping arrangements |
FR2423656A1 (fr) * | 1978-04-19 | 1979-11-16 | Hunsinger Emile | Pompe a vide autoregulatrice |
DE2927797A1 (de) * | 1979-07-10 | 1981-02-05 | Leybold Heraeus Gmbh & Co Kg | Verdraenger-vakuumpumpe mit saugstutzenventil |
DE3710782A1 (de) * | 1987-03-31 | 1988-10-20 | Vacuubrand Gmbh & Co | Verfahren und vorrichtung zum abpumpen von daempfen und/oder dampfhaltigen gemischen und/oder gas-dampf-gemischen oder dgl. medien |
EP0541989A1 (fr) * | 1991-11-11 | 1993-05-19 | Balzers-Pfeiffer GmbH | Système de pompe à vide multi-étage |
DE19634519A1 (de) * | 1996-08-27 | 1998-03-05 | Leybold Vakuum Gmbh | Kolbenvakuumpumpe mit Eintritt und Austritt |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US272730A (en) * | 1883-02-20 | Thomas w | ||
US688520A (en) * | 1901-10-09 | 1901-12-10 | Ebenezer Hill | Air-compressor. |
US1724934A (en) * | 1926-12-01 | 1929-08-20 | Sulzer Ag | Compound-reciprocating compressor |
US2205793A (en) * | 1936-08-10 | 1940-06-25 | Liquid Carbonic Corp | Compressor |
US2812771A (en) * | 1953-08-31 | 1957-11-12 | Arthur E Mcfarland | Hydraulic testing equipment |
DE1865607U (de) * | 1962-08-17 | 1963-01-17 | Dieteg G M B H | Vakuumpumpe, insbesondere fuer melkmaschinen. |
US3835874A (en) * | 1967-12-22 | 1974-09-17 | F Dellasala | Method of introducing liquid doses |
US4784579A (en) * | 1986-12-19 | 1988-11-15 | Allied-Signal Inc. | Hydraulic-pneumatic power transfer unit |
DE4442174A1 (de) * | 1994-11-26 | 1996-05-30 | Leybold Ag | Lecksuchgerät mit Vakuumpumpen und Betriebsverfahren dazu |
DE19524609A1 (de) * | 1995-07-06 | 1997-01-09 | Leybold Ag | Vorrichtung zum raschen Evakuieren einer Vakuumkammer |
US5547347A (en) * | 1995-09-21 | 1996-08-20 | The Boc Group, Inc. | Gas injection apparatus and method |
US5820354A (en) * | 1996-11-08 | 1998-10-13 | Robbins & Myers, Inc. | Cascaded progressing cavity pump system |
DE19704234B4 (de) * | 1997-02-05 | 2006-05-11 | Pfeiffer Vacuum Gmbh | Verfahren und Vorrichtung zur Regelung des Saugvermögens von Vakuumpumpen |
-
1998
- 1998-07-11 DE DE19831123A patent/DE19831123A1/de not_active Withdrawn
-
1999
- 1999-06-17 JP JP17117299A patent/JP4159183B2/ja not_active Expired - Fee Related
- 1999-06-25 DE DE59908691T patent/DE59908691D1/de not_active Expired - Lifetime
- 1999-06-25 EP EP99112217A patent/EP0972938B1/fr not_active Expired - Lifetime
- 1999-06-25 AT AT99112217T patent/ATE261063T1/de not_active IP Right Cessation
- 1999-07-12 US US09/351,735 patent/US6071085A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1253590A (en) * | 1968-10-11 | 1971-11-17 | Balzers Patent Beteilig Ag | Improvements in and relating to vacuum pumping arrangements |
FR2423656A1 (fr) * | 1978-04-19 | 1979-11-16 | Hunsinger Emile | Pompe a vide autoregulatrice |
DE2927797A1 (de) * | 1979-07-10 | 1981-02-05 | Leybold Heraeus Gmbh & Co Kg | Verdraenger-vakuumpumpe mit saugstutzenventil |
DE3710782A1 (de) * | 1987-03-31 | 1988-10-20 | Vacuubrand Gmbh & Co | Verfahren und vorrichtung zum abpumpen von daempfen und/oder dampfhaltigen gemischen und/oder gas-dampf-gemischen oder dgl. medien |
EP0541989A1 (fr) * | 1991-11-11 | 1993-05-19 | Balzers-Pfeiffer GmbH | Système de pompe à vide multi-étage |
DE19634519A1 (de) * | 1996-08-27 | 1998-03-05 | Leybold Vakuum Gmbh | Kolbenvakuumpumpe mit Eintritt und Austritt |
Also Published As
Publication number | Publication date |
---|---|
EP0972938B1 (fr) | 2004-03-03 |
DE19831123A1 (de) | 2000-01-13 |
EP0972938A2 (fr) | 2000-01-19 |
JP4159183B2 (ja) | 2008-10-01 |
DE59908691D1 (de) | 2004-04-08 |
ATE261063T1 (de) | 2004-03-15 |
US6071085A (en) | 2000-06-06 |
JP2000038986A (ja) | 2000-02-08 |
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