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 FLUIDInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3229—Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/003—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing corrosion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical 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.
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)
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)
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)
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)
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 |
-
1977
- 1977-12-30 GB GB54314/77A patent/GB1596520A/en not_active Expired
- 1977-12-30 FR FR7739832A patent/FR2376383A1/en active Granted
-
1978
- 1978-01-02 IT IT47508/78A patent/IT1155753B/en active
- 1978-01-04 DE DE19782800326 patent/DE2800326A1/en active Granted
- 1978-01-04 JP JP9778A patent/JPS5493737A/en active Granted
Patent Citations (5)
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)
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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