FR2289773A1 - VACUUM PUMP WITH BUILT-IN ISOLATED VALVE - Google Patents
VACUUM PUMP WITH BUILT-IN ISOLATED VALVEInfo
- Publication number
- FR2289773A1 FR2289773A1 FR7531772A FR7531772A FR2289773A1 FR 2289773 A1 FR2289773 A1 FR 2289773A1 FR 7531772 A FR7531772 A FR 7531772A FR 7531772 A FR7531772 A FR 7531772A FR 2289773 A1 FR2289773 A1 FR 2289773A1
- Authority
- FR
- France
- Prior art keywords
- built
- vacuum pump
- isolated valve
- isolated
- 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Jet Pumps And Other Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742451685 DE2451685A1 (en) | 1974-10-31 | 1974-10-31 | VACUUM PUMP WITH BUILT-IN SHUT-OFF VALVE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2289773A1 true FR2289773A1 (en) | 1976-05-28 |
FR2289773B1 FR2289773B1 (en) | 1981-12-31 |
Family
ID=5929655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7531772A Granted FR2289773A1 (en) | 1974-10-31 | 1975-10-17 | VACUUM PUMP WITH BUILT-IN ISOLATED VALVE |
Country Status (5)
Country | Link |
---|---|
JP (2) | JPS5166512A (en) |
DE (1) | DE2451685A1 (en) |
FR (1) | FR2289773A1 (en) |
GB (1) | GB1481748A (en) |
IT (1) | IT1043749B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554517A1 (en) * | 1983-11-07 | 1985-05-10 | Pfeiffer Vakuumtechnik | Rotary vane vacuum pump and direct coupled motor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2946263A1 (en) * | 1979-11-16 | 1981-05-27 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Pressure control for vacuum servo pump - has pressure limiter on suction line to allow pump to idle when servo not used |
DD221508B3 (en) * | 1984-02-29 | 1992-12-24 | Zwetko Zwetkow | BREAKING VALVE FOR VACUUM PUMPS |
JPS60249691A (en) * | 1984-05-21 | 1985-12-10 | ゼネラル シグナル コーポレーシヨン | Rotary piston vacuum pump |
CN112516393B (en) * | 2020-12-01 | 2022-06-14 | 中国人民解放军陆军军医大学第一附属医院 | Anti-reflux drainage device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR833740A (en) * | 1937-02-16 | 1938-10-28 | Demag Ag | Method and device for preventing the reversing of rotary compressors in the event of an unplanned stop, and arrangement for achieving unloaded compressor starting and stopping |
FR873949A (en) * | 1940-06-13 | 1942-07-23 | Klein | Compression plant |
DE764179C (en) * | 1938-12-28 | 1953-04-27 | Klein | Compressor system with pressure control |
GB1195361A (en) * | 1966-03-28 | 1970-06-17 | N G N Ltd | Improvements in and relating to Vacuum Pumping apparatus including a Rotary Vacuum Pump |
-
1974
- 1974-10-31 DE DE19742451685 patent/DE2451685A1/en active Pending
-
1975
- 1975-10-17 FR FR7531772A patent/FR2289773A1/en active Granted
- 1975-10-24 GB GB4370875A patent/GB1481748A/en not_active Expired
- 1975-10-30 IT IT2881575A patent/IT1043749B/en active
- 1975-10-30 JP JP13095075A patent/JPS5166512A/en active Pending
-
1983
- 1983-12-27 JP JP20431983U patent/JPS59130084U/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR833740A (en) * | 1937-02-16 | 1938-10-28 | Demag Ag | Method and device for preventing the reversing of rotary compressors in the event of an unplanned stop, and arrangement for achieving unloaded compressor starting and stopping |
DE764179C (en) * | 1938-12-28 | 1953-04-27 | Klein | Compressor system with pressure control |
FR873949A (en) * | 1940-06-13 | 1942-07-23 | Klein | Compression plant |
GB1195361A (en) * | 1966-03-28 | 1970-06-17 | N G N Ltd | Improvements in and relating to Vacuum Pumping apparatus including a Rotary Vacuum Pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554517A1 (en) * | 1983-11-07 | 1985-05-10 | Pfeiffer Vakuumtechnik | Rotary vane vacuum pump and direct coupled motor |
Also Published As
Publication number | Publication date |
---|---|
FR2289773B1 (en) | 1981-12-31 |
JPS5166512A (en) | 1976-06-09 |
GB1481748A (en) | 1977-08-03 |
JPS59130084U (en) | 1984-08-31 |
IT1043749B (en) | 1980-02-29 |
DE2451685A1 (en) | 1976-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |