GB1518943A - Device for monitoring the composition of the exhaust emission of a combustion process - Google Patents
Device for monitoring the composition of the exhaust emission of a combustion processInfo
- Publication number
- GB1518943A GB1518943A GB3935774A GB3935774A GB1518943A GB 1518943 A GB1518943 A GB 1518943A GB 3935774 A GB3935774 A GB 3935774A GB 3935774 A GB3935774 A GB 3935774A GB 1518943 A GB1518943 A GB 1518943A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exhaust emission
- sensing element
- tile
- printed
- heater
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Exhaust Gas After Treatment (AREA)
- Lubricants (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1518943 Gas sensors LUCAS ELECTRICAL Ltd 18 Aug 1975 [10 Sept 1974] 39357/74 Heading GIN A device, for monitoring the composition of the gaseous exhaust emission of a combustion process, includes an insulating substrate, in the form of a ceramic tile 32, which is inert to the gaseous exhaust emission being sensed at the elevated operating temperature (700-1000‹C) of the device, a metal oxide sensing element 31 being printed on and adhered to one major surface of the tile adjacent one end of the tile to be exposed, in use, to the exhaust emission. The metal oxide is chosen so that at the operating temperature its electrical conductivity varies with the concentration of oxidizing or reducing constituents in the exhaust emission, and a heater in the form of a heating wire 42 of platinum is wound around the substrate. The ceramic tile sensing element and heater are surrounded by a hollow, heat resistant body defining a shroud which extends around the sensing element to prevent the exhaust emission flowing directly over it in use. A pair of elongated conductors 33a provide electrical connections 33b to the sensing element. The conductors being printed on and adhering to the one major surface of the tile and extending from the sensing element towards the other end of the tile. Alternatively Fig. 2 (not shown) the heater (55) is a printed resistive area on the opposite surface of the substrate from the sensing element. Or, Fig. 3 (not shown) the resistive heater area (62) and the sensing element (63) are printed spaced apart on the same side of the tile. The metal oxide may be titanium dioxide, zinc oxide, nickel oxide or gallic oxide. A preferred application of the device is in an internal combustion engine to control the fuel/air mixture in dependence on the composition of engine exhaust emission. The element 31 may be heated to a constant temperature using thermocouples adjacent the element for accurate sensing.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3935774A GB1518943A (en) | 1974-09-10 | 1974-09-10 | Device for monitoring the composition of the exhaust emission of a combustion process |
AU84167/75A AU497674B2 (en) | 1974-09-10 | 1975-08-21 | Monitoring exhaust emissions |
IT5122975A IT1047054B (en) | 1974-09-10 | 1975-09-08 | DETECTOR DEVICE OF THE COMPOSITION OF THE EXHAUST GAS IN COMBUSTION PROCESSES |
FR7527632A FR2284880A1 (en) | 1974-09-10 | 1975-09-09 | INDICATOR DEVICE FOR THE COMPOSITION OF THE EXHAUST GASES FROM A COMBUSTION PROCESS |
DE19752540030 DE2540030C2 (en) | 1974-09-10 | 1975-09-09 | Device for monitoring the composition of the exhaust gas emissions of an internal combustion engine |
JP10906675A JPS5156291A (en) | 1974-09-10 | 1975-09-10 | Nenshokoteiniokeru hoshutsuhaikiseibunomonitasurusochi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3935774A GB1518943A (en) | 1974-09-10 | 1974-09-10 | Device for monitoring the composition of the exhaust emission of a combustion process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1518943A true GB1518943A (en) | 1978-07-26 |
Family
ID=10409117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3935774A Expired GB1518943A (en) | 1974-09-10 | 1974-09-10 | Device for monitoring the composition of the exhaust emission of a combustion process |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5156291A (en) |
AU (1) | AU497674B2 (en) |
DE (1) | DE2540030C2 (en) |
FR (1) | FR2284880A1 (en) |
GB (1) | GB1518943A (en) |
IT (1) | IT1047054B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307373A (en) | 1977-06-22 | 1981-12-22 | Rosemont Engineering Company Limited | Solid state sensor element |
GB2135462A (en) * | 1983-02-22 | 1984-08-30 | Autotech Developments Limited | Monitoring gas composition |
GB2151796A (en) * | 1983-12-21 | 1985-07-24 | Westinghouse Electric Corp | A semiconductor oxide gas combustibles sensor |
US5073247A (en) * | 1990-03-28 | 1991-12-17 | Robert Bosch Gmbh | Measuring sensor of oxygen content of hot gas with specially shaped protective tube |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1595421A (en) * | 1977-04-12 | 1981-08-12 | Lucas Industries Ltd | Device for minitoring the composition of the exhaust emission of a combustion process |
JPS5937779B2 (en) * | 1977-04-20 | 1984-09-12 | 株式会社豊田中央研究所 | Oxygen concentration detection element |
JPS5465099A (en) * | 1977-10-05 | 1979-05-25 | Ford Motor Co | Thermistor temperature compensation type titania exhaust gas sensor |
US4151503A (en) * | 1977-10-05 | 1979-04-24 | Ford Motor Company | Temperature compensated resistive exhaust gas sensor construction |
JPS5553451U (en) * | 1978-10-05 | 1980-04-10 | ||
DE2913866C2 (en) * | 1979-04-06 | 1987-03-12 | Robert Bosch Gmbh, 7000 Stuttgart | Sensor for the determination of components in flowing gases |
JPS57124761U (en) * | 1981-01-29 | 1982-08-03 | ||
JPH0542372Y2 (en) * | 1987-06-05 | 1993-10-26 | ||
WO1994012432A1 (en) * | 1992-12-02 | 1994-06-09 | Commonwealth Scientific And Industrial Research Organisation | Gas purification |
DE4243732A1 (en) * | 1992-12-23 | 1994-06-30 | Bosch Gmbh Robert | Sensor arrangement for determining gas components and / or gas concentrations of gas mixtures |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3479257A (en) * | 1966-11-25 | 1969-11-18 | Gen Electric | Methods and apparatus for measuring the content of hydrogen or reducing gases in an atmosphere |
FR1545296A (en) * | 1966-11-25 | 1968-11-08 | Gen Electric | Method and device for measuring the content of hydrogen or reducing gases in an atmosphere |
GB1376769A (en) * | 1971-11-15 | 1974-12-11 | Ford Motor Co | Air-fuel ration sensing system |
-
1974
- 1974-09-10 GB GB3935774A patent/GB1518943A/en not_active Expired
-
1975
- 1975-08-21 AU AU84167/75A patent/AU497674B2/en not_active Expired
- 1975-09-08 IT IT5122975A patent/IT1047054B/en active
- 1975-09-09 DE DE19752540030 patent/DE2540030C2/en not_active Expired
- 1975-09-09 FR FR7527632A patent/FR2284880A1/en active Granted
- 1975-09-10 JP JP10906675A patent/JPS5156291A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307373A (en) | 1977-06-22 | 1981-12-22 | Rosemont Engineering Company Limited | Solid state sensor element |
GB2135462A (en) * | 1983-02-22 | 1984-08-30 | Autotech Developments Limited | Monitoring gas composition |
GB2151796A (en) * | 1983-12-21 | 1985-07-24 | Westinghouse Electric Corp | A semiconductor oxide gas combustibles sensor |
US5073247A (en) * | 1990-03-28 | 1991-12-17 | Robert Bosch Gmbh | Measuring sensor of oxygen content of hot gas with specially shaped protective tube |
Also Published As
Publication number | Publication date |
---|---|
AU497674B2 (en) | 1978-12-21 |
IT1047054B (en) | 1980-09-10 |
AU8416775A (en) | 1977-02-24 |
DE2540030C2 (en) | 1985-09-26 |
JPS5156291A (en) | 1976-05-17 |
DE2540030A1 (en) | 1976-03-25 |
FR2284880A1 (en) | 1976-04-09 |
FR2284880B1 (en) | 1978-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930818 |