DE3877980T4 - Mehrstufen-Vakuumpumpe. - Google Patents
Mehrstufen-Vakuumpumpe.Info
- Publication number
- DE3877980T4 DE3877980T4 DE3877980T DE3877980T DE3877980T4 DE 3877980 T4 DE3877980 T4 DE 3877980T4 DE 3877980 T DE3877980 T DE 3877980T DE 3877980 T DE3877980 T DE 3877980T DE 3877980 T4 DE3877980 T4 DE 3877980T4
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- piston
- vacuum pump
- gas
- liner
- 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
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- -1 polytetrafluorethylene Polymers 0.000 claims abstract description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 23
- 238000005299 abrasion Methods 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 3
- 238000013459 approach Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 9
- 238000000429 assembly Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 51
- 238000005266 casting Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/01—Materials digest
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Compressor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/019,736 US4854825A (en) | 1987-02-27 | 1987-02-27 | Multi-stage vacuum pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3877980T2 DE3877980T2 (de) | 1993-05-27 |
| DE3877980T4 true DE3877980T4 (de) | 1994-05-26 |
Family
ID=21794763
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3877980T Expired - Lifetime DE3877980T4 (de) | 1987-02-27 | 1988-02-24 | Mehrstufen-Vakuumpumpe. |
| DE8888102688A Expired - Lifetime DE3877980D1 (de) | 1987-02-27 | 1988-02-24 | Mehrstufen-vakuumpumpe. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8888102688A Expired - Lifetime DE3877980D1 (de) | 1987-02-27 | 1988-02-24 | Mehrstufen-vakuumpumpe. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4854825A (enExample) |
| EP (1) | EP0280264B1 (enExample) |
| JP (1) | JPH01219366A (enExample) |
| AT (1) | ATE85404T1 (enExample) |
| DE (2) | DE3877980T4 (enExample) |
| ES (1) | ES2038222T3 (enExample) |
| GR (1) | GR3006996T3 (enExample) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8729245D0 (en) * | 1987-12-15 | 1988-01-27 | Boc Group Plc | Vacuum apparatus |
| US5482443A (en) * | 1992-12-21 | 1996-01-09 | Commonwealth Scientific And Industrial Research Organization | Multistage vacuum pump |
| DE19634519A1 (de) | 1996-08-27 | 1998-03-05 | Leybold Vakuum Gmbh | Kolbenvakuumpumpe mit Eintritt und Austritt |
| DE19634518A1 (de) * | 1996-08-27 | 1998-03-05 | Leybold Vakuum Gmbh | Kolbenpumpe mit Entlastungsventil |
| US5996963A (en) * | 1997-02-14 | 1999-12-07 | Ceramco Inc. | Dental casting mold device |
| DE19749729A1 (de) * | 1997-11-11 | 1999-05-12 | Leybold Vakuum Gmbh | Kolbenvakuumpumpe |
| DE19917009A1 (de) * | 1999-04-15 | 2000-10-19 | Leybold Vakuum Gmbh | Kolbenvakuumpumpe mit Gaseinlass und Gasauslass |
| DE19955688A1 (de) | 1999-11-19 | 2001-05-23 | Leybold Vakuum Gmbh | Kolben-Vakuumpumpe |
| US6474954B1 (en) | 2000-08-10 | 2002-11-05 | Thomas Industries Inc. | Compressor cooling system |
| DE10110368A1 (de) * | 2001-03-03 | 2002-09-12 | Leybold Vakuum Gmbh | Vakuumpumpe mit Schöpfraum und Austritt |
| DE10116824A1 (de) * | 2001-04-04 | 2002-10-17 | Arno Friedrichs | Verfahren und Vorrichtung zur Erzeugung von Unterdruck |
| DE10127082A1 (de) * | 2001-06-02 | 2002-12-05 | Leybold Vakuum Gmbh | Mehrstufige Kolbenvakuumpumpe und Verfahren zum Betrieb dieser Pumpe |
| US20080226480A1 (en) * | 2007-03-15 | 2008-09-18 | Ion Metrics, Inc. | Multi-Stage Trochoidal Vacuum Pump |
| US20110137231A1 (en) | 2009-12-08 | 2011-06-09 | Alcon Research, Ltd. | Phacoemulsification Hand Piece With Integrated Aspiration Pump |
| US20130081536A1 (en) * | 2011-09-30 | 2013-04-04 | Newport Medical Instruments, Inc. | Pump piston assembly with acoustic dampening device |
| JP6612618B2 (ja) | 2012-12-11 | 2019-11-27 | アルコン リサーチ， リミテッド | 一体化型吸引および灌流ポンプを備える水晶体超音波乳化吸引術用ハンドピース |
| US9962288B2 (en) | 2013-03-07 | 2018-05-08 | Novartis Ag | Active acoustic streaming in hand piece for occlusion surge mitigation |
| US9750638B2 (en) | 2013-03-15 | 2017-09-05 | Novartis Ag | Systems and methods for ocular surgery |
| US9693896B2 (en) | 2013-03-15 | 2017-07-04 | Novartis Ag | Systems and methods for ocular surgery |
| US9915274B2 (en) | 2013-03-15 | 2018-03-13 | Novartis Ag | Acoustic pumps and systems |
| US9545337B2 (en) | 2013-03-15 | 2017-01-17 | Novartis Ag | Acoustic streaming glaucoma drainage device |
| US10537471B2 (en) | 2014-04-17 | 2020-01-21 | Novartis Ag | Hydraulic pump for ophthalmic surgery |
| US10624785B2 (en) | 2016-01-30 | 2020-04-21 | Carl Zeiss Meditec Cataract Technology Inc. | Devices and methods for ocular surgery |
| EP4052685B1 (en) | 2017-05-04 | 2025-07-02 | Carl Zeiss Meditec Cataract Technology Inc. | Devices for ocular surgery |
| US11260330B2 (en) | 2018-02-09 | 2022-03-01 | Paul NEISER | Filtration apparatus and method |
| WO2019157477A1 (en) | 2018-02-09 | 2019-08-15 | Neiser Paul | Filtration apparatus and method |
| CN112041724A (zh) | 2018-02-15 | 2020-12-04 | P·奈瑟 | 用于选择性透射对象的设备和方法 |
| US20210164451A1 (en) * | 2018-02-23 | 2021-06-03 | Paul NEISER | Interaction method and apparatus |
| WO2019236615A1 (en) * | 2018-06-05 | 2019-12-12 | Carl Zeiss Meditec Cataract Technology Inc. | Ophthalmic microsurgical tools, systems, and methods of use |
| CN113710209B (zh) | 2019-02-01 | 2024-06-25 | 卡尔蔡司白内障医疗技术公司 | 具有集成抽吸泵的眼科切割器械 |
| WO2020236593A1 (en) | 2019-05-17 | 2020-11-26 | Carl Zeiss Meditec Cataract Technology Inc. | Ophthalmic cutting instruments having integrated aspiration pump |
| AU2020288110B2 (en) | 2019-06-07 | 2024-11-21 | Carl Zeiss Meditec Cataract Technology Inc. | Multi-stage trigger for ophthalmology cutting tool |
| EP4390130B1 (de) * | 2022-12-21 | 2025-03-19 | Pfeiffer Vacuum Technology AG | Pumpe und verfahren zur herstellung einer versiegelung |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622788A (en) * | 1946-01-19 | 1952-12-23 | Mills Ind Inc | Refrigeration compressor |
| US2765976A (en) * | 1952-03-14 | 1956-10-09 | Pennsylvania Pump & Compressor | Two stage compressor |
| US2888879A (en) * | 1953-09-30 | 1959-06-02 | Union Carbide Corp | Immersion pump for liquefied gases |
| US3375972A (en) * | 1966-08-11 | 1968-04-02 | Zefex Inc | Pump for a gaseous medium |
| US3779672A (en) * | 1970-03-03 | 1973-12-18 | W Schroeder | Air compressor |
| US3839946A (en) * | 1972-05-24 | 1974-10-08 | Hardie Tynes Mfg Co | Nonlubricated compressor |
| US4023467A (en) * | 1973-03-06 | 1977-05-17 | Bayerisches Druckgusswerk Thurner Kg | Piston compressor for gaseous fluids |
| US3961868A (en) * | 1974-02-21 | 1976-06-08 | Thomas Industries, Inc. | Air compressor |
| US3915597A (en) * | 1974-11-22 | 1975-10-28 | Westinghouse Electric Corp | Ported unloader sleeve |
| DE2645134A1 (de) * | 1975-10-08 | 1977-08-25 | Nissan Motor | Aluminiumzylinder fuer einen hydraulischen stellantrieb |
| US4657488A (en) * | 1979-12-14 | 1987-04-14 | Rockwell International Corporation | Two stage stepped piston air compressor |
| US4387568A (en) * | 1980-07-14 | 1983-06-14 | Mechanical Technology Incorporated | Stirling engine displacer gas bearing |
| JPS5748202A (en) * | 1980-09-05 | 1982-03-19 | Toshiba Corp | Superconductive electromagnet |
| DE3102506C2 (de) * | 1981-01-27 | 1985-06-20 | Pierburg Gmbh & Co Kg, 4040 Neuss | Kolbenpumpe mit geregelter Förderleistung |
| DE3122091C1 (de) * | 1981-06-03 | 1982-12-16 | Saphirwerk, Industrieprodukte AG Nidau, 2560 Nidau | Tauchkolbenpumpe |
| WO1983000539A1 (en) * | 1981-08-13 | 1983-02-17 | Balkau, Guenter, Karl, Willi | Reciprocatory piston and cylinder machine |
| DE3150119A1 (de) * | 1981-12-18 | 1983-06-30 | Volkswagenwerk Ag, 3180 Wolfsburg | "wartungsfreies, trockenes elektro-vakuumpumpenaggregat" |
| FR2536797B1 (fr) * | 1982-11-25 | 1987-08-21 | Rivapompe Sa | Pompe a cylindre et a piston utilisable comme pompe a vide pour asservissement des freins d'un vehicule |
| GB2132284B (en) * | 1982-12-17 | 1986-04-03 | Commw Scient Ind Res Org | Porting and ducting arrangement |
-
1987
- 1987-02-27 US US07/019,736 patent/US4854825A/en not_active Expired - Lifetime
-
1988
- 1988-02-24 DE DE3877980T patent/DE3877980T4/de not_active Expired - Lifetime
- 1988-02-24 EP EP88102688A patent/EP0280264B1/en not_active Expired - Lifetime
- 1988-02-24 DE DE8888102688A patent/DE3877980D1/de not_active Expired - Lifetime
- 1988-02-24 ES ES198888102688T patent/ES2038222T3/es not_active Expired - Lifetime
- 1988-02-24 AT AT88102688T patent/ATE85404T1/de not_active IP Right Cessation
- 1988-02-26 JP JP63042407A patent/JPH01219366A/ja active Pending
-
1993
- 1993-02-09 GR GR920402220T patent/GR3006996T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR3006996T3 (enExample) | 1993-06-30 |
| US4854825A (en) | 1989-08-08 |
| DE3877980T2 (de) | 1993-05-27 |
| EP0280264B1 (en) | 1993-02-03 |
| DE3877980D1 (de) | 1993-03-18 |
| ES2038222T3 (es) | 1993-07-16 |
| EP0280264A2 (en) | 1988-08-31 |
| JPH01219366A (ja) | 1989-09-01 |
| EP0280264A3 (en) | 1989-12-20 |
| ATE85404T1 (de) | 1993-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3877980T4 (de) | Mehrstufen-Vakuumpumpe. | |
| DE69308527T2 (de) | Mehrstufige Vakuumpumpe | |
| DE69838946T2 (de) | Trockene vakuumpumpe | |
| DE3705863C2 (enExample) | ||
| DE3142230C2 (de) | Einrichtung zur Leistungsanpassung eines Mehrzylinder-Kältemittelkompressors | |
| DE69104093T2 (de) | Klimaanlagekompressor. | |
| DE4333634A1 (de) | Axialkolbenkompressor mit mehreren Kolben und einem Drehventil | |
| DE1195427B (de) | Dreistufiger Hochdruckgaskompressor mit einer Kolbendichtung | |
| DE2835273C2 (enExample) | ||
| EP0839283B1 (de) | Ölgedichtete drehschiebervakuumpumpe mit einer ölversorgung | |
| DE60215467T2 (de) | Kolbenschmiersystem für einen hubkolbenverdichter mit einem linearmotor | |
| DE4326323C2 (de) | Taumelscheibenverdichter | |
| DE4326408C2 (de) | Vielfach-Axialkolbenverdichter | |
| DE3236536C2 (de) | Hydraulische Hochdruckpumpe | |
| DE69500320T2 (de) | Kolbenverdichter mit Schmiersystem | |
| EP0061706A1 (de) | Druckluftgetriebene Doppelmembranpumpe | |
| DE4411437A1 (de) | Axialkolbenkompressor mit Drehventil | |
| DE3617889C2 (enExample) | ||
| DE4006156C2 (de) | Kolbenverdichter, insbesondere für die Drucklufterzeugung in Kraftfahrzeugen | |
| EP0642628B1 (de) | Doppelpumpe | |
| DE4325286A1 (de) | Zweistufige Drehschiebervakuumpumpe | |
| EP0922165B1 (de) | Vakuumpumpe | |
| DE3902658A1 (de) | Kolbenmkompressor | |
| DE4438696A1 (de) | Flügelzellenpumpe | |
| DE3522796C2 (enExample) |