JP2865888B2 - マルチターボ型真空ポンプ - Google Patents
マルチターボ型真空ポンプInfo
- Publication number
- JP2865888B2 JP2865888B2 JP3854491A JP3854491A JP2865888B2 JP 2865888 B2 JP2865888 B2 JP 2865888B2 JP 3854491 A JP3854491 A JP 3854491A JP 3854491 A JP3854491 A JP 3854491A JP 2865888 B2 JP2865888 B2 JP 2865888B2
- Authority
- JP
- Japan
- Prior art keywords
- turbo
- sub
- rotor
- vacuum pump
- blade
- 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 - Fee Related
Links
- 239000007789 gas Substances 0.000 description 26
- 238000007906 compression Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011226 reinforced ceramic Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/168—Pumps specially adapted to produce a vacuum
-
- 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
- F04D19/042—Turbomolecular vacuum 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3854491A JP2865888B2 (ja) | 1991-03-05 | 1991-03-05 | マルチターボ型真空ポンプ |
DE19924206972 DE4206972A1 (de) | 1991-03-05 | 1992-03-05 | Mehrturbinen-vakuumpumpe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3854491A JP2865888B2 (ja) | 1991-03-05 | 1991-03-05 | マルチターボ型真空ポンプ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04276197A JPH04276197A (ja) | 1992-10-01 |
JP2865888B2 true JP2865888B2 (ja) | 1999-03-08 |
Family
ID=12528229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3854491A Expired - Fee Related JP2865888B2 (ja) | 1991-03-05 | 1991-03-05 | マルチターボ型真空ポンプ |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2865888B2 (de) |
DE (1) | DE4206972A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29715035U1 (de) * | 1997-08-22 | 1997-10-30 | Leybold Vakuum GmbH, 50968 Köln | Reibungsvakuumpumpe |
DE10149366A1 (de) * | 2001-10-06 | 2003-04-17 | Leybold Vakuum Gmbh | Axial fördernde Reibungsvakuumpumpe |
DE10354204B4 (de) * | 2003-11-20 | 2016-03-10 | Leybold Vakuum Gmbh | Molekularpumpe |
DE102004012713A1 (de) * | 2004-03-16 | 2005-10-06 | Pfeiffer Vacuum Gmbh | Turbomolekularpumpe |
CN111637069A (zh) * | 2020-07-07 | 2020-09-08 | 中国空气动力研究与发展中心超高速空气动力研究所 | 一种多入口高速离心真空泵组 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1991
- 1991-03-05 JP JP3854491A patent/JP2865888B2/ja not_active Expired - Fee Related
-
1992
- 1992-03-05 DE DE19924206972 patent/DE4206972A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH04276197A (ja) | 1992-10-01 |
DE4206972A1 (de) | 1992-09-10 |
DE4206972C2 (de) | 1993-08-12 |
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