FR2423656A1 - Pompe a vide autoregulatrice - Google Patents
Pompe a vide autoregulatriceInfo
- Publication number
- FR2423656A1 FR2423656A1 FR7811625A FR7811625A FR2423656A1 FR 2423656 A1 FR2423656 A1 FR 2423656A1 FR 7811625 A FR7811625 A FR 7811625A FR 7811625 A FR7811625 A FR 7811625A FR 2423656 A1 FR2423656 A1 FR 2423656A1
- Authority
- FR
- France
- Prior art keywords
- pump
- differential pressure
- membrane
- spring loaded
- valve
- 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.)
- Granted
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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
L'invention concerne une pompe à vide autorégulatrice. La pompe comporte dans un cylindre de pompe un clapet d'aspiration, un clapet de refoulement et un by-pass dont la fermeture est commandée par une membrane ou par un clapet solidaire de ladite membrane, cette dernière étant reliée par sa face tournée du côté du by-pass, au côté aspiration de la pompe, et par sa face opposée au côté refoulement de la pompe, un ressort taré assurant la fermeture du by-pass par la membrane ou le clapet, et son ouverture lorsque la dépression transmise depuis le côté aspiration atteint une valeur déterminée équilibrée par le ressort taré. Application à l'autorégulation des pompes à vide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811625A FR2423656A1 (fr) | 1978-04-19 | 1978-04-19 | Pompe a vide autoregulatrice |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7811625A FR2423656A1 (fr) | 1978-04-19 | 1978-04-19 | Pompe a vide autoregulatrice |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2423656A1 true FR2423656A1 (fr) | 1979-11-16 |
FR2423656B1 FR2423656B1 (fr) | 1980-11-07 |
Family
ID=9207356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7811625A Granted FR2423656A1 (fr) | 1978-04-19 | 1978-04-19 | Pompe a vide autoregulatrice |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2423656A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2481758A1 (fr) * | 1980-04-30 | 1981-11-06 | Hunsinger Emile | Pompe a vide notamment pour assistance des freins sur vehicules a moteur diesel |
EP0972938A3 (fr) * | 1998-07-11 | 2000-06-28 | Pfeiffer Vacuum GmbH | Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1708171A (en) * | 1924-02-25 | 1929-04-09 | Sullivan Machinery Co | Compressor-unloading means |
US1769667A (en) * | 1924-02-25 | 1930-07-01 | Sullivan Machinery Co | Compressor-unloading means |
FR723753A (fr) * | 1930-12-16 | 1932-04-14 | Outil Mec Usinage Artillerie | Dispositif de sûreté avec soupape chargée pour pompes à liquide |
US1994179A (en) * | 1930-06-05 | 1935-03-12 | Pennsylvania Pump & Compressor | Cylinder relief valve for compressors |
US2405466A (en) * | 1943-09-14 | 1946-08-06 | Eisemann Corp | Fluid transfer apparatus |
US3738344A (en) * | 1969-09-05 | 1973-06-12 | J Bandimere | Fuel pump and method of control therefor |
GB1359140A (en) * | 1971-12-13 | 1974-07-10 | Brown Tractors Ltd | Hydraulic system |
-
1978
- 1978-04-19 FR FR7811625A patent/FR2423656A1/fr active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1708171A (en) * | 1924-02-25 | 1929-04-09 | Sullivan Machinery Co | Compressor-unloading means |
US1769667A (en) * | 1924-02-25 | 1930-07-01 | Sullivan Machinery Co | Compressor-unloading means |
US1994179A (en) * | 1930-06-05 | 1935-03-12 | Pennsylvania Pump & Compressor | Cylinder relief valve for compressors |
FR723753A (fr) * | 1930-12-16 | 1932-04-14 | Outil Mec Usinage Artillerie | Dispositif de sûreté avec soupape chargée pour pompes à liquide |
US2405466A (en) * | 1943-09-14 | 1946-08-06 | Eisemann Corp | Fluid transfer apparatus |
US3738344A (en) * | 1969-09-05 | 1973-06-12 | J Bandimere | Fuel pump and method of control therefor |
GB1359140A (en) * | 1971-12-13 | 1974-07-10 | Brown Tractors Ltd | Hydraulic system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2481758A1 (fr) * | 1980-04-30 | 1981-11-06 | Hunsinger Emile | Pompe a vide notamment pour assistance des freins sur vehicules a moteur diesel |
EP0972938A3 (fr) * | 1998-07-11 | 2000-06-28 | Pfeiffer Vacuum GmbH | Dispositif de ballast de gaz pour une pompe volumétrique à plusieurs étages |
Also Published As
Publication number | Publication date |
---|---|
FR2423656B1 (fr) | 1980-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |