FR2289773A1 - VACUUM PUMP WITH BUILT-IN ISOLATED VALVE - Google Patents

VACUUM PUMP WITH BUILT-IN ISOLATED VALVE

Info

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
Application number
FR7531772A
Other languages
French (fr)
Other versions
FR2289773B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PFEIFFER VAKUUMTECHNIK
Original Assignee
PFEIFFER VAKUUMTECHNIK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PFEIFFER VAKUUMTECHNIK filed Critical PFEIFFER VAKUUMTECHNIK
Publication of FR2289773A1 publication Critical patent/FR2289773A1/en
Application granted granted Critical
Publication of FR2289773B1 publication Critical patent/FR2289773B1/fr
Granted legal-status Critical Current

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)
  • Jet Pumps And Other Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
FR7531772A 1974-10-31 1975-10-17 VACUUM PUMP WITH BUILT-IN ISOLATED VALVE Granted FR2289773A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
DE2451685A1 (en) 1976-05-06
IT1043749B (en) 1980-02-29
JPS5166512A (en) 1976-06-09
JPS59130084U (en) 1984-08-31
GB1481748A (en) 1977-08-03

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Legal Events

Date Code Title Description
ST Notification of lapse