FR2544522B1 - Capteur de rapport de pression - Google Patents

Capteur de rapport de pression

Info

Publication number
FR2544522B1
FR2544522B1 FR8306080A FR8306080A FR2544522B1 FR 2544522 B1 FR2544522 B1 FR 2544522B1 FR 8306080 A FR8306080 A FR 8306080A FR 8306080 A FR8306080 A FR 8306080A FR 2544522 B1 FR2544522 B1 FR 2544522B1
Authority
FR
France
Prior art keywords
report sensor
pressure report
pressure
sensor
report
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.)
Expired
Application number
FR8306080A
Other languages
English (en)
Other versions
FR2544522A1 (fr
Inventor
Luc Langouet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8306080A priority Critical patent/FR2544522B1/fr
Priority to GB08408895A priority patent/GB2138971B/en
Priority to US06/598,929 priority patent/US4570451A/en
Priority to DE19843413495 priority patent/DE3413495A1/de
Priority to JP59073114A priority patent/JPS59200171A/ja
Publication of FR2544522A1 publication Critical patent/FR2544522A1/fr
Application granted granted Critical
Publication of FR2544522B1 publication Critical patent/FR2544522B1/fr
Expired 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
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Control Of Fluid Pressure (AREA)
FR8306080A 1983-04-14 1983-04-14 Capteur de rapport de pression Expired FR2544522B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8306080A FR2544522B1 (fr) 1983-04-14 1983-04-14 Capteur de rapport de pression
GB08408895A GB2138971B (en) 1983-04-14 1984-04-06 A pressure-ratio threshold sensor and a machine processing a liquefiable gas and equipped with sensor
US06/598,929 US4570451A (en) 1983-04-14 1984-04-10 Pressure-ratio threshold sensor and a machine processing a liquefiable gas and equipped with such a sensor
DE19843413495 DE3413495A1 (de) 1983-04-14 1984-04-10 Druckverhaeltnis-schwellwertfuehler und mit diesem ausgeruestete maschine zur verarbeitung eines verfluessigbaren gases
JP59073114A JPS59200171A (ja) 1983-04-14 1984-04-13 圧力比を設定値と比較するための装置および該装置を備えた冷凍機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8306080A FR2544522B1 (fr) 1983-04-14 1983-04-14 Capteur de rapport de pression

Publications (2)

Publication Number Publication Date
FR2544522A1 FR2544522A1 (fr) 1984-10-19
FR2544522B1 true FR2544522B1 (fr) 1986-08-14

Family

ID=9287834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8306080A Expired FR2544522B1 (fr) 1983-04-14 1983-04-14 Capteur de rapport de pression

Country Status (5)

Country Link
US (1) US4570451A (fr)
JP (1) JPS59200171A (fr)
DE (1) DE3413495A1 (fr)
FR (1) FR2544522B1 (fr)
GB (1) GB2138971B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583373A (en) * 1984-02-14 1986-04-22 Dunham-Bush, Inc. Constant evaporator pressure slide valve modulator for screw compressor refrigeration system
US4678406A (en) * 1986-04-25 1987-07-07 Frick Company Variable volume ratio screw compressor with step control
DE4231374A1 (de) * 1992-09-21 1994-03-24 Gastechnic Prod Vertriebges Verfahren und Vorrichtung zum Steuern eines Gasstromes
JP2002089442A (ja) * 2000-09-08 2002-03-27 Toyota Industries Corp 容量可変型圧縮機の制御弁

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR960087A (fr) * 1950-04-12
US1750336A (en) * 1925-07-15 1930-03-11 Westinghouse Electric & Mfg Co Motor-starting switch
GB572302A (en) * 1942-01-09 1945-10-02 British Thermostat Co Ltd Improvements in or relating to temperature regulating and indicating apparatus
US3088659A (en) * 1960-06-17 1963-05-07 Svenska Rotor Maskiner Ab Means for regulating helical rotary piston engines
GB1171291A (en) * 1965-10-12 1969-11-19 Svenska Rotor Maskiner Ab Screw Rotor Machines
US3795117A (en) * 1972-09-01 1974-03-05 Dunham Bush Inc Injection cooling of screw compressors
US4221116A (en) * 1978-06-05 1980-09-09 Borg-Warner Corporation Temperature compensated control for air conditioning system or heat pump
SE427063B (sv) * 1979-06-08 1983-02-28 Stal Refrigeration Ab Kompressor av rotationstyp med varierbart inbyggt volymsforhallande
US4351160A (en) * 1980-06-16 1982-09-28 Borg-Warner Corporation Capacity control systems for screw compressor based water chillers
US4342199A (en) * 1980-10-03 1982-08-03 Dunham-Bush, Inc. Screw compressor slide valve engine RPM tracking system

Also Published As

Publication number Publication date
GB2138971A (en) 1984-10-31
US4570451A (en) 1986-02-18
DE3413495A1 (de) 1984-10-18
JPS59200171A (ja) 1984-11-13
FR2544522A1 (fr) 1984-10-19
GB8408895D0 (en) 1984-05-16
GB2138971B (en) 1986-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse