HK1021401A1 - Vacuum pump - Google Patents
Vacuum pumpInfo
- Publication number
- HK1021401A1 HK1021401A1 HK00100211A HK00100211A HK1021401A1 HK 1021401 A1 HK1021401 A1 HK 1021401A1 HK 00100211 A HK00100211 A HK 00100211A HK 00100211 A HK00100211 A HK 00100211A HK 1021401 A1 HK1021401 A1 HK 1021401A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- vacuum pump
- vacuum
- pump
- Prior art date
Links
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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/047—Pumps having electric drive
-
- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B27/053—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with an actuating element at the inner ends of the cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/046—Combinations of two or more different types of pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97TO001139A IT1297347B1 (it) | 1997-12-24 | 1997-12-24 | Pompa da vuoto. |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1021401A1 true HK1021401A1 (en) | 2000-06-09 |
Family
ID=11416233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK00100211A HK1021401A1 (en) | 1997-12-24 | 2000-01-13 | Vacuum pump |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0931939B1 (de) |
DE (1) | DE69815806T2 (de) |
HK (1) | HK1021401A1 (de) |
IT (1) | IT1297347B1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6248157B1 (en) * | 1999-08-20 | 2001-06-19 | Systec Inc. | Vacuum degassing |
FR2822200B1 (fr) * | 2001-03-19 | 2003-09-26 | Cit Alcatel | Systeme de pompage pour gaz a faible conductivite thermique |
JP4250353B2 (ja) * | 2001-06-22 | 2009-04-08 | エドワーズ株式会社 | 真空ポンプ |
CN101852199B (zh) * | 2009-03-31 | 2011-11-09 | 储继国 | 复合真空泵 |
JP6009193B2 (ja) * | 2012-03-30 | 2016-10-19 | 株式会社荏原製作所 | 真空排気装置 |
DE102013213257A1 (de) * | 2013-07-05 | 2015-01-08 | Pfeiffer Vacuum Gmbh | Membranvakuumpumpe |
EP3267040B1 (de) | 2016-07-04 | 2023-12-20 | Pfeiffer Vacuum Gmbh | Turbomolekularpumpe |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0784871B2 (ja) | 1986-06-12 | 1995-09-13 | 株式会社日立製作所 | 真空排気装置 |
DE3826710A1 (de) * | 1987-08-07 | 1989-02-16 | Japan Atomic Energy Res Inst | Vakuumpumpe |
JPH01277698A (ja) * | 1988-04-30 | 1989-11-08 | Nippon Ferrofluidics Kk | 複合型真空ポンプ |
EP0344345B1 (de) * | 1988-06-01 | 1991-09-18 | Leybold Aktiengesellschaft | Pumpsystem für ein Lecksuchgerät |
FR2640697B1 (fr) | 1988-12-16 | 1993-01-08 | Cit Alcatel | Ensemble de pompage pour l'obtention de vides eleves |
FR2656658B1 (fr) * | 1989-12-28 | 1993-01-29 | Cit Alcatel | Pompe a vide turbomoleculaire mixte, a deux arbres de rotation et a refoulement a la pression atmospherique. |
IT1241431B (it) * | 1990-03-09 | 1994-01-17 | Varian Spa | Pompa turbomolecolare perfezionata. |
DE9305554U1 (de) * | 1993-04-15 | 1993-06-17 | KNF-Neuberger GmbH, 7800 Freiburg | Zweifach-Verdrängerpumpe |
-
1997
- 1997-12-24 IT IT97TO001139A patent/IT1297347B1/it active IP Right Grant
-
1998
- 1998-06-17 EP EP98111113A patent/EP0931939B1/de not_active Expired - Lifetime
- 1998-06-17 DE DE69815806T patent/DE69815806T2/de not_active Expired - Fee Related
-
2000
- 2000-01-13 HK HK00100211A patent/HK1021401A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0931939A2 (de) | 1999-07-28 |
ITTO971139A1 (it) | 1999-06-24 |
EP0931939A3 (de) | 2000-08-30 |
DE69815806D1 (de) | 2003-07-31 |
IT1297347B1 (it) | 1999-09-01 |
DE69815806T2 (de) | 2004-05-19 |
EP0931939B1 (de) | 2003-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20090617 |