FR2676255B1 - - Google Patents
Info
- Publication number
- FR2676255B1 FR2676255B1 FR9105575A FR9105575A FR2676255B1 FR 2676255 B1 FR2676255 B1 FR 2676255B1 FR 9105575 A FR9105575 A FR 9105575A FR 9105575 A FR9105575 A FR 9105575A FR 2676255 B1 FR2676255 B1 FR 2676255B1
- 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 - Lifetime
Links
Classifications
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
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- 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
- F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
- F04C2220/12—Dry running
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9105575A FR2676255A1 (fr) | 1991-05-07 | 1991-05-07 | Pompe a vide seche rotative, volumetrique sans frottement. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9105575A FR2676255A1 (fr) | 1991-05-07 | 1991-05-07 | Pompe a vide seche rotative, volumetrique sans frottement. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2676255A1 FR2676255A1 (fr) | 1992-11-13 |
| FR2676255B1 true FR2676255B1 (US06653308-20031125-C00199.png) | 1995-02-10 |
Family
ID=9412596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9105575A Granted FR2676255A1 (fr) | 1991-05-07 | 1991-05-07 | Pompe a vide seche rotative, volumetrique sans frottement. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2676255A1 (US06653308-20031125-C00199.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4746982B2 (ja) * | 2005-12-27 | 2011-08-10 | 積水化学工業株式会社 | 単段ルーツ式真空ポンプ及びこの単段ルーツ式真空ポンプを用いた真空式流体搬送システム |
| ITUB20153710A1 (it) * | 2015-08-06 | 2017-02-06 | Jurop S P A | Compressore volumetrico a lobi per una attrezzatura e/o un impianto di aspirazione di materiale in forma liquida, solida, polverosa o fangosa |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE623703C (US06653308-20031125-C00199.png) * | ||||
| FR951230A (fr) * | 1946-07-11 | 1949-10-19 | Roots Connersville Blower Corp | Perfectionnements aux pompes rotatives |
| US3393770A (en) * | 1965-01-04 | 1968-07-23 | C M Sorensen Co Inc | Automatic recycling oiler |
-
1991
- 1991-05-07 FR FR9105575A patent/FR2676255A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2676255A1 (fr) | 1992-11-13 |
