FR1219478A - Pompe à vide avec dispositif à ballast gazeux - Google Patents
Pompe à vide avec dispositif à ballast gazeuxInfo
- Publication number
- FR1219478A FR1219478A FR790470A FR790470A FR1219478A FR 1219478 A FR1219478 A FR 1219478A FR 790470 A FR790470 A FR 790470A FR 790470 A FR790470 A FR 790470A FR 1219478 A FR1219478 A FR 1219478A
- Authority
- FR
- France
- Prior art keywords
- vacuum pump
- ballast device
- gas ballast
- gas
- vacuum
- 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
- 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
-
- 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
- F04C2220/00—Application
- F04C2220/50—Pumps with means for introducing gas under pressure for ballasting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1219478X | 1958-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1219478A true FR1219478A (fr) | 1960-05-18 |
Family
ID=7733876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR790470A Expired FR1219478A (fr) | 1958-05-30 | 1959-03-26 | Pompe à vide avec dispositif à ballast gazeux |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1219478A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2383335A1 (fr) * | 1977-03-08 | 1978-10-06 | Leybold Heraeus Sogev | Pompe mecanique a joint d'huile |
-
1959
- 1959-03-26 FR FR790470A patent/FR1219478A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2383335A1 (fr) * | 1977-03-08 | 1978-10-06 | Leybold Heraeus Sogev | Pompe mecanique a joint d'huile |
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