FR1140189A - Multistage pumping device - Google Patents
Multistage pumping deviceInfo
- Publication number
- FR1140189A FR1140189A FR1140189DA FR1140189A FR 1140189 A FR1140189 A FR 1140189A FR 1140189D A FR1140189D A FR 1140189DA FR 1140189 A FR1140189 A FR 1140189A
- Authority
- FR
- France
- Prior art keywords
- pumping device
- multistage pumping
- multistage
- pumping
- 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
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
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1140189X | 1955-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1140189A true FR1140189A (en) | 1957-07-16 |
Family
ID=7726449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1140189D Expired FR1140189A (en) | 1955-01-15 | 1956-01-13 | Multistage pumping device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1140189A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1226239B (en) * | 1960-11-03 | 1966-10-06 | Leybolds Nachfolger E | Operating procedure for a vacuum pump unit |
DE3514317A1 (en) * | 1984-04-20 | 1985-10-31 | Tokico Ltd., Kawasaki, Kanagawa | VACUUM PUMP |
FR2652390A1 (en) * | 1989-09-27 | 1991-03-29 | Cit Alcatel | VACUUM PUMP GROUP. |
-
1956
- 1956-01-13 FR FR1140189D patent/FR1140189A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1226239B (en) * | 1960-11-03 | 1966-10-06 | Leybolds Nachfolger E | Operating procedure for a vacuum pump unit |
DE3514317A1 (en) * | 1984-04-20 | 1985-10-31 | Tokico Ltd., Kawasaki, Kanagawa | VACUUM PUMP |
FR2652390A1 (en) * | 1989-09-27 | 1991-03-29 | Cit Alcatel | VACUUM PUMP GROUP. |
WO1991005166A1 (en) * | 1989-09-27 | 1991-04-18 | Alcatel Cit | Vacuum pumping group |
US5165864A (en) * | 1989-09-27 | 1992-11-24 | Alcatel Cit | Vacuum pump unit |
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