FR2136544A5 - - Google Patents
Info
- Publication number
- FR2136544A5 FR2136544A5 FR7213975A FR7213975A FR2136544A5 FR 2136544 A5 FR2136544 A5 FR 2136544A5 FR 7213975 A FR7213975 A FR 7213975A FR 7213975 A FR7213975 A FR 7213975A FR 2136544 A5 FR2136544 A5 FR 2136544A5
- Authority
- FR
- France
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712119475 DE2119475C3 (de) | 1971-04-21 | 1971-04-21 | Mehrstufige parallel- und außenachsige Rotationskolbenmaschine in Tandemanordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2136544A5 true FR2136544A5 (it) | 1972-12-22 |
Family
ID=5805442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7213975A Expired FR2136544A5 (it) | 1971-04-21 | 1972-04-20 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE782461A (it) |
| DE (1) | DE2119475C3 (it) |
| FR (1) | FR2136544A5 (it) |
| GB (1) | GB1378539A (it) |
| IT (1) | IT954721B (it) |
| SE (1) | SE383021B (it) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2439870A1 (fr) * | 1978-10-25 | 1980-05-23 | Thermo Electron Corp | Procede a haut rendement energetique pour produire de la vapeur de procede |
| WO2001023762A1 (de) * | 1999-09-24 | 2001-04-05 | Leybold Vakuum Gmbh | Schraubenpumpe, insbesondere schraubenvakuumpumpe, mit zwei pumpstufen |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101037B2 (ja) * | 1990-05-25 | 1995-11-01 | 株式会社荏原製作所 | 多段スクリュー式流体機械 |
| DE102014017075B4 (de) * | 2014-11-20 | 2017-11-02 | Itt Bornemann Gmbh | Vorrichtung zum Fördern eines Mediums |
| CN104776025B (zh) * | 2015-04-24 | 2019-02-01 | 福建雪人股份有限公司 | 多螺杆压缩机 |
| BE1026106B1 (nl) * | 2017-08-28 | 2019-10-16 | Atlas Copco Airpower Naamloze Vennootschap | Schroefcompressor |
| CN112727769A (zh) * | 2020-12-15 | 2021-04-30 | 董长艳 | 一种智能控制大功率气体空气压缩机 |
-
1971
- 1971-04-21 DE DE19712119475 patent/DE2119475C3/de not_active Expired
-
1972
- 1972-04-20 IT IT6823572A patent/IT954721B/it active
- 1972-04-20 SE SE519272A patent/SE383021B/xx unknown
- 1972-04-20 GB GB1849872A patent/GB1378539A/en not_active Expired
- 1972-04-20 FR FR7213975A patent/FR2136544A5/fr not_active Expired
- 1972-04-21 BE BE782461A patent/BE782461A/xx not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2439870A1 (fr) * | 1978-10-25 | 1980-05-23 | Thermo Electron Corp | Procede a haut rendement energetique pour produire de la vapeur de procede |
| WO2001023762A1 (de) * | 1999-09-24 | 2001-04-05 | Leybold Vakuum Gmbh | Schraubenpumpe, insbesondere schraubenvakuumpumpe, mit zwei pumpstufen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2119475A1 (de) | 1972-11-02 |
| DE2119475B2 (de) | 1974-02-28 |
| DE2119475C3 (de) | 1979-02-08 |
| GB1378539A (en) | 1974-12-27 |
| SE383021B (sv) | 1976-02-23 |
| BE782461A (fr) | 1972-08-16 |
| IT954721B (it) | 1973-09-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |