IT970919B - PIN FOR ROTARY MOLECULAR PUMPS - Google Patents
PIN FOR ROTARY MOLECULAR PUMPSInfo
- Publication number
- IT970919B IT970919B IT31717/72A IT3171772A IT970919B IT 970919 B IT970919 B IT 970919B IT 31717/72 A IT31717/72 A IT 31717/72A IT 3171772 A IT3171772 A IT 3171772A IT 970919 B IT970919 B IT 970919B
- Authority
- IT
- Italy
- Prior art keywords
- pin
- molecular pumps
- rotary molecular
- rotary
- pumps
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/057—Bearings hydrostatic; hydrodynamic
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
- F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/08—Rigid support of bearing units; Housings, e.g. caps, covers for spindles
- F16C35/10—Rigid support of bearing units; Housings, e.g. caps, covers for spindles with sliding-contact bearings
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7140995A FR2161180A5 (en) | 1971-11-16 | 1971-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT970919B true IT970919B (en) | 1974-04-20 |
Family
ID=9085846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT31717/72A IT970919B (en) | 1971-11-16 | 1972-11-16 | PIN FOR ROTARY MOLECULAR PUMPS |
Country Status (8)
Country | Link |
---|---|
US (1) | US3832084A (en) |
BE (1) | BE790969A (en) |
CH (1) | CH564691A5 (en) |
DE (1) | DE2255618C2 (en) |
FR (1) | FR2161180A5 (en) |
GB (1) | GB1359920A (en) |
IT (1) | IT970919B (en) |
NL (1) | NL7215491A (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2224009A5 (en) * | 1973-03-30 | 1974-10-25 | Cit Alcatel | |
DE2359456A1 (en) * | 1973-11-29 | 1975-06-05 | Leybold Heraeus Gmbh & Co Kg | TURBOMOLECULAR VACUUM PUMP WITH GAS BEARED ROTOR |
DE2512828C3 (en) * | 1975-03-22 | 1978-11-16 | Kernforschungsanlage Juelich Gmbh, 5170 Juelich | Turbo molecular pump |
FR2446934A1 (en) * | 1979-01-19 | 1980-08-14 | Cit Alcatel | HIGH VACUUM ROTARY PUMP |
DE3032967A1 (en) * | 1980-09-02 | 1982-04-15 | Leybold-Heraeus GmbH, 5000 Köln | Turbo-molecular type vacuum pump - has spaces inside and outside rotor bell sealed from each other to increase vacuum obtained |
NL8105614A (en) * | 1981-12-14 | 1983-07-01 | Ultra Centrifuge Nederland Nv | HIGH VACUUM MOLECULAR PUMP. |
FR2521650A1 (en) * | 1982-02-16 | 1983-08-19 | Cit Alcatel | ROTARY PUMP WITH HIGH VACUUM |
US4767265A (en) * | 1983-10-07 | 1988-08-30 | Sargent-Welch Scientific Co. | Turbomolecular pump with improved bearing assembly |
US4806075A (en) * | 1983-10-07 | 1989-02-21 | Sargent-Welch Scientific Co. | Turbomolecular pump with improved bearing assembly |
US4674952A (en) * | 1983-10-07 | 1987-06-23 | Sargent-Welch Scientific Company | Turbo molecular pump with improved bearing assembly |
DE3410905A1 (en) * | 1984-03-24 | 1985-10-03 | Leybold-Heraeus GmbH, 5000 Köln | DEVICE FOR CONVEYING GASES IN SUBATMOSPHAERIC PRESSURES |
FR2567208B1 (en) * | 1984-07-05 | 1988-12-09 | Cit Alcatel | HIGH VACUUM ROTARY PUMP |
DE3600124A1 (en) * | 1986-01-04 | 1987-07-16 | Fortuna Werke Maschf Ag | BLOWERS FOR CIRCUITING LARGE QUANTITIES OF GAS, IN PARTICULAR FOR HIGH-PERFORMANCE LASERS |
DE3705912A1 (en) * | 1987-02-24 | 1988-09-01 | Alcatel Hochvakuumtechnik Gmbh | HIGH VACUUM PUMP WITH A BELL-SHAPED ROTOR |
DE3728154C2 (en) * | 1987-08-24 | 1996-04-18 | Balzers Pfeiffer Gmbh | Multi-stage molecular pump |
WO1989006319A1 (en) * | 1987-12-25 | 1989-07-13 | Sholokhov Valery B | Molecular vacuum pump |
WO1989006320A1 (en) * | 1988-01-05 | 1989-07-13 | Sholokhov Valery B | Molecular vacuum pump |
DE3891263T1 (en) * | 1988-02-26 | 1990-03-15 | Nikolaj Michailovic Novikov | TURBOMOLECULAR VACUUM PUMP |
WO1989009341A1 (en) * | 1988-03-30 | 1989-10-05 | Sergeev Vladimir P | Turbomolecular vacuum pump |
US5049168A (en) * | 1988-09-12 | 1991-09-17 | Philip Danielson | Helium leak detection method and system |
US6318093B2 (en) | 1988-09-13 | 2001-11-20 | Helix Technology Corporation | Electronically controlled cryopump |
US6022195A (en) * | 1988-09-13 | 2000-02-08 | Helix Technology Corporation | Electronically controlled vacuum pump with control module |
US5020969A (en) * | 1988-09-28 | 1991-06-04 | Hitachi, Ltd. | Turbo vacuum pump |
JP2928615B2 (en) * | 1990-09-28 | 1999-08-03 | 株式会社日立製作所 | Turbo vacuum pump |
US6902378B2 (en) * | 1993-07-16 | 2005-06-07 | Helix Technology Corporation | Electronically controlled vacuum pump |
AU9797298A (en) * | 1997-10-21 | 1999-05-10 | Multilevel Metals, Inc. | Gas bearing turbo pump and gas bearing feedthrough |
DE19915983A1 (en) | 1999-04-09 | 2000-10-12 | Pfeiffer Vacuum Gmbh | Vacuum pump with gas storage |
US6508631B1 (en) | 1999-11-18 | 2003-01-21 | Mks Instruments, Inc. | Radial flow turbomolecular vacuum pump |
GB0208556D0 (en) * | 2002-04-12 | 2002-05-22 | Advanced Fluid Systems Ltd | Magnetic seal and bearing arrangement |
EP1559915B1 (en) * | 2004-01-29 | 2007-05-16 | Pfeiffer Vacuum GmbH | Gas friction pump |
GB2467168B (en) * | 2009-01-26 | 2011-03-16 | Air Bearings Ltd | Gas bearing and method of manufacturing the same |
DE102010001538A1 (en) * | 2010-02-03 | 2011-08-04 | Trumpf Maschinen Ag | Gas laser with radial and axial gas bearings |
DE102010021015A1 (en) | 2010-05-19 | 2011-11-24 | O3-innovation Ursula Bürger e.Kfr. | Apparatus for generating water vapor, heat and cold, has vacuum-tight spiral piston pump equipped with hermetically sealed motor drive, where hermetic vacuum actuator is formed with spiral towards each other |
CN103016531B (en) * | 2012-12-31 | 2015-02-25 | 浙江工业大学 | Friction-free rotary air supply air flotation device |
JP6287475B2 (en) * | 2014-03-28 | 2018-03-07 | 株式会社島津製作所 | Vacuum pump |
JP2020186687A (en) * | 2019-05-15 | 2020-11-19 | エドワーズ株式会社 | Vacuum pump and stationary component for screw groove pump part |
CN111692340B (en) * | 2020-06-12 | 2022-03-22 | 东台市岳东橡胶密封件厂 | Built-in floating telescopic sealing element |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2730297A (en) * | 1950-04-12 | 1956-01-10 | Hartford Nat Bank & Trust Co | High-vacuum molecular pump |
DE1023679B (en) * | 1956-06-08 | 1958-01-30 | Messerschmitt Boelkow Blohm | Device for regulating maps with similar or practically similar level lines |
FR1203718A (en) * | 1958-03-28 | 1960-01-20 | Jansen Gmbh Th | Brush dust collector |
FR1284111A (en) * | 1961-01-23 | 1962-02-09 | Bristol Siddeley Engines Ltd | Compressor improvements |
FR1293546A (en) * | 1961-02-09 | 1962-05-18 | Alsacienne Constr Meca | Improvements to rotary molecular pumps |
FR81075E (en) * | 1962-01-23 | 1963-07-26 | Snecma | Advanced Turbomolecular Vacuum Pump |
US3189264A (en) * | 1963-06-04 | 1965-06-15 | Arthur Pfeiffer Company | Vacuum pump drive and seal arrangement |
US3628894A (en) * | 1970-09-15 | 1971-12-21 | Bendix Corp | High-vacuum mechanical pump |
US3999827A (en) * | 1975-10-10 | 1976-12-28 | Burroughs Corporation | Electrical connector for semiconductor device package |
-
0
- BE BE790969D patent/BE790969A/en unknown
-
1971
- 1971-11-16 FR FR7140995A patent/FR2161180A5/fr not_active Expired
-
1972
- 1972-11-06 CH CH1610372A patent/CH564691A5/xx not_active IP Right Cessation
- 1972-11-13 DE DE2255618A patent/DE2255618C2/en not_active Expired
- 1972-11-14 GB GB5249872A patent/GB1359920A/en not_active Expired
- 1972-11-16 IT IT31717/72A patent/IT970919B/en active
- 1972-11-16 US US00307231A patent/US3832084A/en not_active Expired - Lifetime
- 1972-11-16 NL NL7215491A patent/NL7215491A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CH564691A5 (en) | 1975-07-31 |
BE790969A (en) | 1973-05-07 |
US3832084A (en) | 1974-08-27 |
FR2161180A5 (en) | 1973-07-06 |
DE2255618C2 (en) | 1982-12-23 |
GB1359920A (en) | 1974-07-17 |
NL7215491A (en) | 1973-05-18 |
DE2255618A1 (en) | 1973-05-24 |
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