FR2376383A1 - METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF INHIBITING CORROSION OF A REFRIGERANT FLUID - Google Patents

METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF INHIBITING CORROSION OF A REFRIGERANT FLUID

Info

Publication number
FR2376383A1
FR2376383A1 FR7739832A FR7739832A FR2376383A1 FR 2376383 A1 FR2376383 A1 FR 2376383A1 FR 7739832 A FR7739832 A FR 7739832A FR 7739832 A FR7739832 A FR 7739832A FR 2376383 A1 FR2376383 A1 FR 2376383A1
Authority
FR
France
Prior art keywords
monitoring
reservoir
efficiency
refrigerant fluid
inhibiting corrosion
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
FR7739832A
Other languages
French (fr)
Other versions
FR2376383B1 (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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of FR2376383A1 publication Critical patent/FR2376383A1/en
Application granted granted Critical
Publication of FR2376383B1 publication Critical patent/FR2376383B1/fr
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • B60H1/3229Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/003Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing corrosion
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

L'invention concerne un procédé et un appareil de contrôle de l'efficacité d'inhibition de la corrosion d'un fluide réfrigérant. L'appareil comprend un réservoir, une première électrode de référence montée dans et électriquement isolée par rapport audit réservoir et pénétrant dans ce dernier, une seconde électrode montée dans et électriquement isolée par rapport audit réservoir et à la première électrode et pénétrant dans le réservoir, ainsi que des moyens 54 sensibles à une tension électrique reliés aux électrodes. Application aux circuits de réfrigération de véhicules automobiles.A method and apparatus for monitoring the corrosion inhibition efficiency of a refrigerant is provided. The apparatus comprises a reservoir, a first reference electrode mounted in and electrically isolated from and penetrating into said reservoir, a second electrode mounted in and electrically insulated from said reservoir and to the first electrode and penetrating into the reservoir, as well as means 54 sensitive to an electric voltage connected to the electrodes. Application to automotive vehicle refrigeration circuits.

FR7739832A 1977-01-04 1977-12-30 METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF INHIBITING CORROSION OF A REFRIGERANT FLUID Granted FR2376383A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75667877A 1977-01-04 1977-01-04

Publications (2)

Publication Number Publication Date
FR2376383A1 true FR2376383A1 (en) 1978-07-28
FR2376383B1 FR2376383B1 (en) 1984-04-27

Family

ID=25044576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739832A Granted FR2376383A1 (en) 1977-01-04 1977-12-30 METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF INHIBITING CORROSION OF A REFRIGERANT FLUID

Country Status (5)

Country Link
JP (1) JPS5493737A (en)
DE (1) DE2800326A1 (en)
FR (1) FR2376383A1 (en)
GB (1) GB1596520A (en)
IT (1) IT1155753B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413655A1 (en) * 1977-12-30 1979-07-27 Texas Instruments Inc METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF THE CORROSION INHIBITOR IN A COOLING FLUID
EP0989400A1 (en) * 1998-09-03 2000-03-29 R. E. Davis Chemical Corporation Method and apparatus for measuring the acid level of hydraulic fluid in a hydraulic system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57168727U (en) * 1981-04-20 1982-10-23
DE3515767A1 (en) * 1985-05-02 1986-11-06 Alfred Teves Gmbh, 6000 Frankfurt Device for determining and monitoring the condition, the state and the filling level of a hydraulic fluid
DE3531479A1 (en) * 1985-09-04 1987-03-05 Corrocean As MEASURING PROBE FOR CORROSION TEST
DE3703439C1 (en) * 1987-02-05 1988-02-11 Daimler-Benz Ag, 7000 Stuttgart, De Anticorrosion medium effectiveness monitor - has particle separator responding to density difference for cooling system of IC engine
GB8818593D0 (en) * 1988-08-04 1988-09-07 Albright & Wilson Fabric conditioners
DE4443021C1 (en) * 1994-12-02 1996-04-11 Josef Dagn Corrosion protection characteristics measuring system for engine coolant
JP5396844B2 (en) * 2008-12-12 2014-01-22 日産自動車株式会社 Cooling system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166485A (en) * 1963-01-31 1965-01-19 Exxon Research Engineering Co Corrosion electro-potentiometer probe
US3660249A (en) * 1970-02-05 1972-05-02 Magna Corp Method and apparatus for determining both the average corrosion rate, and the pitting tendency, substantially independently of the resistance of the electrolyte
US3725212A (en) * 1970-03-07 1973-04-03 Mitsubishi Motors Corp Method for testing radiator-tube-clogging property of antifreezing coolants
FR2305730A1 (en) * 1975-03-27 1976-10-22 Ici Ltd PROCESS AND APPARATUS FOR DETECTION OF DEFECTS IN PROTECTIVE COATINGS
FR2309874A1 (en) * 1975-04-28 1976-11-26 Chemoprojekt Projektova Inzeny METHOD AND DEVICE FOR MEASURING THE POLARIZING POTENTIAL OF METAL STRUCTURES CONTAINED IN AN ELECTROLYTE OF AN ELECTRIC FIELD

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558462A (en) * 1968-10-03 1971-01-26 Petrolite Corp Probe assembly for corrosion tests
US3717566A (en) * 1971-11-11 1973-02-20 Petrolite Corp Corrosion ratemeter
JPS4949327U (en) * 1972-08-07 1974-04-30

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166485A (en) * 1963-01-31 1965-01-19 Exxon Research Engineering Co Corrosion electro-potentiometer probe
US3660249A (en) * 1970-02-05 1972-05-02 Magna Corp Method and apparatus for determining both the average corrosion rate, and the pitting tendency, substantially independently of the resistance of the electrolyte
US3725212A (en) * 1970-03-07 1973-04-03 Mitsubishi Motors Corp Method for testing radiator-tube-clogging property of antifreezing coolants
FR2305730A1 (en) * 1975-03-27 1976-10-22 Ici Ltd PROCESS AND APPARATUS FOR DETECTION OF DEFECTS IN PROTECTIVE COATINGS
FR2309874A1 (en) * 1975-04-28 1976-11-26 Chemoprojekt Projektova Inzeny METHOD AND DEVICE FOR MEASURING THE POLARIZING POTENTIAL OF METAL STRUCTURES CONTAINED IN AN ELECTROLYTE OF AN ELECTRIC FIELD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413655A1 (en) * 1977-12-30 1979-07-27 Texas Instruments Inc METHOD AND APPARATUS FOR MONITORING THE EFFICIENCY OF THE CORROSION INHIBITOR IN A COOLING FLUID
EP0989400A1 (en) * 1998-09-03 2000-03-29 R. E. Davis Chemical Corporation Method and apparatus for measuring the acid level of hydraulic fluid in a hydraulic system

Also Published As

Publication number Publication date
IT7847508A0 (en) 1978-01-02
JPS6157451B2 (en) 1986-12-06
FR2376383B1 (en) 1984-04-27
IT1155753B (en) 1987-01-28
JPS5493737A (en) 1979-07-25
DE2800326A1 (en) 1978-07-13
DE2800326C2 (en) 1988-01-07
GB1596520A (en) 1981-08-26

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